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* bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs
@ 2023-08-31 20:14 Ulf Herrman
  2023-09-01 18:08 ` Csepp
                   ` (4 more replies)
  0 siblings, 5 replies; 23+ messages in thread
From: Ulf Herrman @ 2023-08-31 20:14 UTC (permalink / raw)
  To: 65665

[-- Attachment #1: Type: text/plain, Size: 2115 bytes --]

#:deep? #t currently works by interposing a dummy build system that
lowers the package to a bag using the original build system, then
applies the supplied transformation to all of the bag's inputs, then
returns a new bag with the new inputs.

The problem with this approach is that it doesn't affect the bag
arguments.  This means that packages passed in as arguments may still
end up being used without being transformed.  Worse still, packages
*not* passed in as arguments may end up being used *unless one is
explicitly passed in as an argument*, as is the case with
qt-build-system's #:qtbase argument.

In short, the current approach of having the build-system lower
procedure leave the arguments mostly unchanged and letting the
bag->derivation procedure (the "bag builder") fill in lots of defaults
means that there are implicit inputs that cannot be touched at the
package level without adding special logic for every single build system
that does something like this.

I propose that we have the build system lower procedure (that is, the
one that converts from package to bag) completely fill in the argument
list with all defaults, and we modify build-system-with-package-mapping
to transform all arguments that look like a package or a list of
packages (or maybe even a tree containing packages).

Many large-scale package transformations have their purpose defeated if
even a single package slips through and has to be built or downloaded
separately (e.g. "I wanted to use a more minimal version of P, and now I
have both the original version of P *and* a more minimal version of P
*and* a duplicate copy of a large portion of the package graph...").  In
fact, in some situations, this could cause exponential growth of the
number of packages, e.g. a transformation is applied to qtbase and its
dependencies, but not to the implicit version and its dependencies, so
now all the dependencies of qtbase are duplicated, and if this happens
again at a higher level with something that depends on a package with
qt-build-system, now there are four duplicate subgraphs, and so on.

What do you think?

- Ulf

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^ permalink raw reply	[flat|nested] 23+ messages in thread

* bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs
  2023-08-31 20:14 bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs Ulf Herrman
@ 2023-09-01 18:08 ` Csepp
  2023-09-03 13:02 ` Maxim Cournoyer
                   ` (3 subsequent siblings)
  4 siblings, 0 replies; 23+ messages in thread
From: Csepp @ 2023-09-01 18:08 UTC (permalink / raw)
  To: Ulf Herrman; +Cc: 65665


Ulf Herrman <striness@tilde.club> writes:

> [[PGP Signed Part:Undecided]]
> #:deep? #t currently works by interposing a dummy build system that
> lowers the package to a bag using the original build system, then
> applies the supplied transformation to all of the bag's inputs, then
> returns a new bag with the new inputs.
>
> The problem with this approach is that it doesn't affect the bag
> arguments.  This means that packages passed in as arguments may still
> end up being used without being transformed.  Worse still, packages
> *not* passed in as arguments may end up being used *unless one is
> explicitly passed in as an argument*, as is the case with
> qt-build-system's #:qtbase argument.
>
> In short, the current approach of having the build-system lower
> procedure leave the arguments mostly unchanged and letting the
> bag->derivation procedure (the "bag builder") fill in lots of defaults
> means that there are implicit inputs that cannot be touched at the
> package level without adding special logic for every single build system
> that does something like this.
>
> I propose that we have the build system lower procedure (that is, the
> one that converts from package to bag) completely fill in the argument
> list with all defaults, and we modify build-system-with-package-mapping
> to transform all arguments that look like a package or a list of
> packages (or maybe even a tree containing packages).
>
> Many large-scale package transformations have their purpose defeated if
> even a single package slips through and has to be built or downloaded
> separately (e.g. "I wanted to use a more minimal version of P, and now I
> have both the original version of P *and* a more minimal version of P
> *and* a duplicate copy of a large portion of the package graph...").  In
> fact, in some situations, this could cause exponential growth of the
> number of packages, e.g. a transformation is applied to qtbase and its
> dependencies, but not to the implicit version and its dependencies, so
> now all the dependencies of qtbase are duplicated, and if this happens
> again at a higher level with something that depends on a package with
> qt-build-system, now there are four duplicate subgraphs, and so on.
>
> What do you think?
>
> - Ulf
>
> [[End of PGP Signed Part]]

Sounds like a good idea to me.




^ permalink raw reply	[flat|nested] 23+ messages in thread

* bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs
  2023-08-31 20:14 bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs Ulf Herrman
  2023-09-01 18:08 ` Csepp
@ 2023-09-03 13:02 ` Maxim Cournoyer
  2023-09-05 14:57 ` Simon Tournier
                   ` (2 subsequent siblings)
  4 siblings, 0 replies; 23+ messages in thread
From: Maxim Cournoyer @ 2023-09-03 13:02 UTC (permalink / raw)
  To: Ulf Herrman; +Cc: dev, zimon.toutoune, othacehe, ludo, me, 65665, rekado, guix

Hello Ulf,

Ulf Herrman <striness@tilde.club> writes:

> #:deep? #t currently works by interposing a dummy build system that
> lowers the package to a bag using the original build system, then
> applies the supplied transformation to all of the bag's inputs, then
> returns a new bag with the new inputs.
>
> The problem with this approach is that it doesn't affect the bag
> arguments.  This means that packages passed in as arguments may still
> end up being used without being transformed.  Worse still, packages
> *not* passed in as arguments may end up being used *unless one is
> explicitly passed in as an argument*, as is the case with
> qt-build-system's #:qtbase argument.
>
> In short, the current approach of having the build-system lower
> procedure leave the arguments mostly unchanged and letting the
> bag->derivation procedure (the "bag builder") fill in lots of defaults
> means that there are implicit inputs that cannot be touched at the
> package level without adding special logic for every single build system
> that does something like this.

This is indeed sub-optimal!

> I propose that we have the build system lower procedure (that is, the
> one that converts from package to bag) completely fill in the argument
> list with all defaults, and we modify build-system-with-package-mapping
> to transform all arguments that look like a package or a list of
> packages (or maybe even a tree containing packages).

[...]

> What do you think?

Like Csepp, I like your proposition!  I'm CC'ing the core team, in case
they have something to add to it, but otherwise, we only need a
volunteer to turn it into code :-).

-- 
Thanks,
Maxim




^ permalink raw reply	[flat|nested] 23+ messages in thread

* bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs
  2023-08-31 20:14 bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs Ulf Herrman
  2023-09-01 18:08 ` Csepp
  2023-09-03 13:02 ` Maxim Cournoyer
@ 2023-09-05 14:57 ` Simon Tournier
  2023-09-16  9:45 ` bug#65665: [PATCH] Really " Ulf Herrman
  2023-10-12 13:53 ` Ludovic Courtès
  4 siblings, 0 replies; 23+ messages in thread
From: Simon Tournier @ 2023-09-05 14:57 UTC (permalink / raw)
  To: Ulf Herrman, 65665

Hi,

On Thu, 31 Aug 2023 at 15:14, Ulf Herrman <striness@tilde.club> wrote:

> I propose that we have the build system lower procedure (that is, the
> one that converts from package to bag) completely fill in the argument
> list with all defaults, and we modify build-system-with-package-mapping
> to transform all arguments that look like a package or a list of
> packages (or maybe even a tree containing packages).

On principle, this looks a good idea.

Do you already have an implementation?  Because transformations lead to
headache and sometimes the implementation is hard, well evil, details
and all that. :-)

Cheers,
simon




^ permalink raw reply	[flat|nested] 23+ messages in thread

* bug#65665: [PATCH] Really get all the implicit inputs.
  2023-08-31 20:14 bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs Ulf Herrman
                   ` (2 preceding siblings ...)
  2023-09-05 14:57 ` Simon Tournier
@ 2023-09-16  9:45 ` Ulf Herrman
  2023-10-06  2:36   ` Maxim Cournoyer
  2023-10-12 14:06   ` bug#65665: package-mapping with #:deep? #t doesn't " Ludovic Courtès
  2023-10-12 13:53 ` Ludovic Courtès
  4 siblings, 2 replies; 23+ messages in thread
From: Ulf Herrman @ 2023-09-16  9:45 UTC (permalink / raw)
  To: 65665


[-- Attachment #1.1: Type: text/plain, Size: 480 bytes --]

This patch series causes package-mapping to recurse into package and bag
arguments when #:deep? #t is given.  It also recurses into gexps and
gexp inputs in search of packages to devour.  It also ensures that build
systems leave all of their implicit package arguments in the bag
arguments, ready to be found by package-mapping.  It also fixes a couple
build system errors I came across while modifying 40+ build systems and
testing a deep package transformation.

- ulfvonbelow


[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1.2: 0001-guix-packages-rewrite-arguments-with-package-mapping.patch --]
[-- Type: text/x-patch, Size: 17200 bytes --]

From 73b2dfe98591073104fd069622ede2acab0c7655 Mon Sep 17 00:00:00 2001
Message-Id: <73b2dfe98591073104fd069622ede2acab0c7655.1694806866.git.striness@tilde.club>
From: Ulf Herrman <striness@tilde.club>
Date: Fri, 15 Sep 2023 07:38:24 -0500
Subject: [PATCH 1/5] guix: packages: rewrite arguments with `package-mapping'.

* guix/gexp.scm (make-gexp, gexp-references, gexp-self-modules,
  gexp-self-extensions, gexp-proc, %gexp-location): export.
* guix/packages.scm (build-system-with-package-mapping): replace `rewrite'
  argument with `rewrite-input' and `rewrite-argument' arguments.  Use
  `rewrite-argument' to rewrite bag arguments.
  (package-mapping): rewrite package arguments when `deep?' is true.
---
 guix/gexp.scm     |  7 ++++++
 guix/packages.scm | 56 ++++++++++++++++++++++++++++++++++++++---------
 2 files changed, 53 insertions(+), 10 deletions(-)

diff --git a/guix/gexp.scm b/guix/gexp.scm
index 0fe4f1c98a..6acd3116d4 100644
--- a/guix/gexp.scm
+++ b/guix/gexp.scm
@@ -39,6 +39,13 @@ (define-module (guix gexp)
   #:use-module (ice-9 match)
   #:export (gexp
             gexp?
+            make-gexp
+            gexp-references
+            gexp-self-modules
+            gexp-self-extensions
+            gexp-proc
+            %gexp-location
+
             sexp->gexp
             with-imported-modules
             with-extensions
diff --git a/guix/packages.scm b/guix/packages.scm
index ba98bb0fb4..1334def142 100644
--- a/guix/packages.scm
+++ b/guix/packages.scm
@@ -1431,7 +1431,7 @@ (define* (package-closure packages #:key (system (%current-system)))
                    (vhash-consq package #t visited)
                    (fold set-insert closure dependencies))))))))
 
-(define (build-system-with-package-mapping bs rewrite)
+(define (build-system-with-package-mapping bs rewrite-input rewrite-argument)
   "Return a variant of BS, a build system, that rewrites a bag's inputs by
 passing them through REWRITE, a procedure that takes an input tuplet and
 returns a \"rewritten\" input tuplet."
@@ -1442,9 +1442,10 @@ (define (build-system-with-package-mapping bs rewrite)
     (let ((lowered (apply lower args)))
       (bag
         (inherit lowered)
-        (build-inputs (map rewrite (bag-build-inputs lowered)))
-        (host-inputs (map rewrite (bag-host-inputs lowered)))
-        (target-inputs (map rewrite (bag-target-inputs lowered))))))
+        (build-inputs (map rewrite-input (bag-build-inputs lowered)))
+        (host-inputs (map rewrite-input (bag-host-inputs lowered)))
+        (target-inputs (map rewrite-input (bag-target-inputs lowered)))
+        (arguments (map rewrite-argument (bag-arguments lowered))))))
 
   (build-system
     (inherit bs)
@@ -1456,13 +1457,32 @@ (define* (package-mapping proc #:optional (cut? (const #f))
 depended on and returns the resulting package.  The procedure stops recursion
 when CUT? returns true for a given package.  When DEEP? is true, PROC is
 applied to implicit inputs as well."
-  (define (rewrite input)
+  (define (rewrite-input input)
     (match input
       ((label (? package? package) outputs ...)
        (cons* label (replace package) outputs))
       (_
        input)))
 
+  (define (rewrite-argument arg)
+    (match arg
+      ((? package? p)
+       (replace p))
+      ((? gexp-input? gi)
+       (gexp-input (rewrite-argument (gexp-input-thing gi))
+                   (gexp-input-output gi)
+                   #:native? (gexp-input-native? gi)))
+      ((? gexp? gxp)
+       (make-gexp (map rewrite-argument (gexp-references gxp))
+                  (gexp-self-modules gxp)
+                  (gexp-self-extensions gxp)
+                  (gexp-proc gxp)
+                  (%gexp-location gxp)))
+      ((lst ...)
+       (map rewrite-argument lst))
+      (_
+       arg)))
+
   (define mapping-property
     ;; Property indicating whether the package has already been processed.
     (gensym " package-mapping-done"))
@@ -1484,7 +1504,8 @@ (define* (package-mapping proc #:optional (cut? (const #f))
                      (inherit p)
                      (location (package-location p))
                      (replacement (package-replacement p))
-                     (propagated-inputs (map rewrite (package-propagated-inputs p)))
+                     (propagated-inputs (map rewrite-input
+                                             (package-propagated-inputs p)))
                      (properties `((,mapping-property . #t)
                                    ,@(package-properties p)))))))
 
@@ -1500,11 +1521,26 @@ (define* (package-mapping proc #:optional (cut? (const #f))
                  (location (package-location p))
                  (build-system (if deep?
                                    (build-system-with-package-mapping
-                                    (package-build-system p) rewrite)
+                                    (package-build-system p)
+                                    rewrite-input
+                                    rewrite-argument)
                                    (package-build-system p)))
-                 (inputs (map rewrite (package-inputs p)))
-                 (native-inputs (map rewrite (package-native-inputs p)))
-                 (propagated-inputs (map rewrite (package-propagated-inputs p)))
+                 (inputs (map rewrite-input (package-inputs p)))
+                 (native-inputs (map rewrite-input (package-native-inputs p)))
+                 (propagated-inputs
+                  (map rewrite-input (package-propagated-inputs p)))
+                 (arguments
+                  (match p
+                       (($ <package> _ _ _ _ args-proc)
+                        ;; If we let ARGS-PROC be passed its original package,
+                        ;; we somehow end up in an infinite (or maybe just
+                        ;; exponential? Never seen it end...) loop.  Should
+                        ;; probably figure out what's causing that at some
+                        ;; point.
+                        (let ((args (args-proc this-package)))
+                          (if deep?
+                              (map rewrite-argument args)
+                              args)))))
                  (replacement (and=> (package-replacement p) replace))
                  (properties `((,mapping-property . #t)
                                ,@(package-properties p)))))))))

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prerequisite-patch-id: f5aa2b7352ffec54c23277d9d4715bbd95c1eb79
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prerequisite-patch-id: 999ec11aaddd785d065911dcb1fc7385ccf053d6
prerequisite-patch-id: cc250a0b2267760feea1427573482db1bb8328e6
prerequisite-patch-id: b593f9fd55bbd9e855baba4b1037d844d5773916
prerequisite-patch-id: 74e3c356cee5e56d4dc3f5bc4f5705cd2ce75a1d
prerequisite-patch-id: 7443872a7242e134d8f95398c53f47d4ae21a23b
prerequisite-patch-id: da89093d1a5bb1dd8bb6436f4daf70eb4025eae9
prerequisite-patch-id: 3be9735669c6510ef29e75588bbf907d57733834
prerequisite-patch-id: 976e476ba476fe3cd730ac29c825fad81c6331d1
prerequisite-patch-id: 889a29b57cea9cb18f4f4a9c22b04d151b216e1d
prerequisite-patch-id: 6b6690e68606f4359e22656a7c6aeae5c58ea017
prerequisite-patch-id: c46954eddc80453f6d7c045fa22ec99a694d9693
prerequisite-patch-id: bdccc141b570181273512c2089d95e4ebcdae453
prerequisite-patch-id: ee3338d64821748f9a7d8ed9cf5e9181c2027252
prerequisite-patch-id: 7f7da1ba32e01163b013d5c4ac96aa468f6e908e
prerequisite-patch-id: 83a09cce225aaaa626b3f5d2f3a092055f61a909
prerequisite-patch-id: 7f31991b2e91782e9dd1c1a6fda5f055fdff3234
prerequisite-patch-id: 831310b4d4842a08ad12fdf5c07ce55b57db049d
prerequisite-patch-id: 9588d67009d034f36ceef115b158556b8cacb680
prerequisite-patch-id: e0807504b7c5f14f0af8bdbbdd800754888dd8f8
prerequisite-patch-id: 6e3d6e24505bd188d776720913c18c4b874c896c
prerequisite-patch-id: e20a2cd4b5a85889b97a5733863175fb56420d01
-- 
2.40.1


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From dcd9b6505fa46d139d40141cf29d7eef15c46481 Mon Sep 17 00:00:00 2001
Message-Id: <dcd9b6505fa46d139d40141cf29d7eef15c46481.1694806866.git.striness@tilde.club>
In-Reply-To: <73b2dfe98591073104fd069622ede2acab0c7655.1694806866.git.striness@tilde.club>
References: <73b2dfe98591073104fd069622ede2acab0c7655.1694806866.git.striness@tilde.club>
From: Ulf Herrman <striness@tilde.club>
Date: Fri, 15 Sep 2023 07:48:48 -0500
Subject: [PATCH 2/5] build-system: asdf: use substitute-keyword-arguments with
 default.

A two-argument substitute-keyword-arguments clause won't be evaluated when
there isn't already a keyword in the argument list.  Using a three-argument
clause allows the phases-transformer to be run in all cases.

* guix/build-system/asdf.scm (package-with-build-system): use %standard-phases
  as default value of `phases', use gexps.
---
 guix/build-system/asdf.scm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/guix/build-system/asdf.scm b/guix/build-system/asdf.scm
index 2b17cee37b..cd041eed4f 100644
--- a/guix/build-system/asdf.scm
+++ b/guix/build-system/asdf.scm
@@ -218,7 +218,8 @@ (define* (package-with-build-system from-build-system to-build-system
           (build-system to-build-system)
           (arguments
            (substitute-keyword-arguments base-arguments
-             ((#:phases phases) (list phases-transformer phases))))
+             ((#:phases phases #~%standard-phases)
+              #~(#$phases-transformer #$phases))))
           (inputs (new-inputs package-inputs))
           (propagated-inputs (new-propagated-inputs))
           (native-inputs (append (if target-is-source?
-- 
2.40.1


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From 4b42f9501284ad66d4de04f5b94bdaf412008d5d Mon Sep 17 00:00:00 2001
Message-Id: <4b42f9501284ad66d4de04f5b94bdaf412008d5d.1694806866.git.striness@tilde.club>
In-Reply-To: <73b2dfe98591073104fd069622ede2acab0c7655.1694806866.git.striness@tilde.club>
References: <73b2dfe98591073104fd069622ede2acab0c7655.1694806866.git.striness@tilde.club>
From: Ulf Herrman <striness@tilde.club>
Date: Fri, 15 Sep 2023 08:31:58 -0500
Subject: [PATCH 3/5] build-system: include all argument packages in bag args
 explicitly.

Deep package transformations currently miss several implicit input packages
because they are introduced via the bag->derivation builder procedure.  This
is the case with, for example, qtbase in qt-build-system.  This can be avoided
by ensuring that those arguments are always explicitly specified in the bag
arguments list.  Notably, this is also the case for the guile used by the
generated build script, so every single build system that uses
gexp->derivation needs to be modified.

* guix/build-system/agda.scm (lower): include guile in bag arguments.
* guix/build-system/android-ndk.scm (lower): include guile in bag arguments.
* guix/build-system/ant.scm (lower): include guile in bag arguments.
* guix/build-system/asdf.scm (lower, lower/source):
  include guile in bag arguments.
* guix/build-system/cargo.scm (lower): include guile in bag arguments.
* guix/build-system/chicken.scm (lower): include guile in bag arguments.
* guix/build-system/clojure.scm (lower): include guile in bag arguments.
* guix/build-system/cmake.scm (lower): include guile in bag arguments.
* guix/build-system/copy.scm (lower): include guile in bag arguments.
* guix/build-system/dub.scm (lower): include guile in bag arguments.
* guix/build-system/dune.scm (lower): include guile in bag arguments.
* guix/build-system/elm.scm (lower): include guile in bag arguments.
* guix/build-system/emacs.scm (lower): include guile in bag arguments.
* guix/build-system/font.scm (lower): include guile in bag arguments.
* guix/build-system/glib-or-gtk.scm (lower): include guile in bag arguments.
* guix/build-system/gnu.scm (lower): include guile in bag arguments.
* guix/build-system/go.scm (lower): include guile in bag arguments.
* guix/build-system/guile.scm (lower): include guile in bag arguments.
* guix/build-system/haskell.scm (lower): include guile in bag arguments.
* guix/build-system/julia.scm (lower): include guile in bag arguments.
* guix/build-system/linux-module.scm (lower): include guile in bag arguments.
* guix/build-system/maven.scm (lower): include guile in bag arguments.
* guix/build-system/meson.scm (lower): include guile in bag arguments.
* guix/build-system/minify.scm (lower): include guile in bag arguments.
* guix/build-system/node.scm (lower): include guile in bag arguments.
* guix/build-system/ocaml.scm (lower): include guile in bag arguments.
* guix/build-system/perl.scm (lower): include guile in bag arguments.
* guix/build-system/pyproject.scm (lower): include guile in bag arguments.
* guix/build-system/python.scm (lower): include guile in bag arguments.
* guix/build-system/qt.scm (lower): include guile and qtbase in bag
  arguments.
* guix/build-system/r.scm (lower): include guile in bag arguments.
* guix/build-system/rakudo.scm (lower): include guile in bag arguments.
* guix/build-system/rebar.scm (lower): include guile in bag arguments.
* guix/build-system/renpy.scm (lower): include guile in bag arguments.
* guix/build-system/ruby.scm (lower): include guile in bag arguments.
* guix/build-system/scons.scm (lower): include guile in bag arguments.
* guix/build-system/texlive.scm (lower): include guile in bag arguments.
* guix/build-system/tree-sitter.scm (lower): include guile in bag arguments.
* guix/build-system/trivial.scm (lower): include guile in bag arguments.
---
 guix/build-system/agda.scm         |  6 +++++-
 guix/build-system/android-ndk.scm  |  6 +++++-
 guix/build-system/ant.scm          |  6 +++++-
 guix/build-system/asdf.scm         | 12 ++++++++++--
 guix/build-system/cargo.scm        |  6 +++++-
 guix/build-system/chicken.scm      |  6 +++++-
 guix/build-system/clojure.scm      |  7 +++++--
 guix/build-system/cmake.scm        |  6 +++++-
 guix/build-system/copy.scm         |  6 +++++-
 guix/build-system/dub.scm          |  6 +++++-
 guix/build-system/dune.scm         |  5 ++++-
 guix/build-system/elm.scm          |  6 +++++-
 guix/build-system/emacs.scm        |  6 +++++-
 guix/build-system/font.scm         |  6 +++++-
 guix/build-system/glib-or-gtk.scm  |  6 +++++-
 guix/build-system/gnu.scm          |  6 +++++-
 guix/build-system/go.scm           |  6 +++++-
 guix/build-system/guile.scm        |  5 ++++-
 guix/build-system/haskell.scm      |  4 +++-
 guix/build-system/julia.scm        |  6 +++++-
 guix/build-system/linux-module.scm |  6 +++++-
 guix/build-system/maven.scm        |  6 +++++-
 guix/build-system/meson.scm        |  6 +++++-
 guix/build-system/minify.scm       |  6 +++++-
 guix/build-system/node.scm         |  6 +++++-
 guix/build-system/ocaml.scm        |  6 +++++-
 guix/build-system/perl.scm         |  6 +++++-
 guix/build-system/pyproject.scm    |  6 +++++-
 guix/build-system/python.scm       |  6 +++++-
 guix/build-system/qt.scm           |  7 ++++++-
 guix/build-system/r.scm            |  6 +++++-
 guix/build-system/rakudo.scm       |  6 +++++-
 guix/build-system/rebar.scm        |  6 +++++-
 guix/build-system/renpy.scm        |  6 +++++-
 guix/build-system/ruby.scm         |  6 +++++-
 guix/build-system/scons.scm        |  6 +++++-
 guix/build-system/texlive.scm      |  6 +++++-
 guix/build-system/tree-sitter.scm  |  6 +++++-
 guix/build-system/trivial.scm      |  3 ++-
 guix/build-system/waf.scm          |  6 +++++-
 40 files changed, 199 insertions(+), 42 deletions(-)

diff --git a/guix/build-system/agda.scm b/guix/build-system/agda.scm
index 64983dff60..511f1f11b5 100644
--- a/guix/build-system/agda.scm
+++ b/guix/build-system/agda.scm
@@ -47,6 +47,7 @@ (define %default-modules
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (agda (default-agda))
+                (guile (default-guile))
                 gnu-and-haskell?
                 #:allow-other-keys
                 #:rest arguments)
@@ -73,7 +74,10 @@ (define* (lower name
                          ,@native-inputs))
          (outputs outputs)
          (build agda-build)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define* (agda-build name inputs
                      #:key
diff --git a/guix/build-system/android-ndk.scm b/guix/build-system/android-ndk.scm
index 047f884b19..064aacceaa 100644
--- a/guix/build-system/android-ndk.scm
+++ b/guix/build-system/android-ndk.scm
@@ -82,6 +82,7 @@ (define* (android-ndk-build name inputs
 
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -106,7 +107,10 @@ (define* (lower name
                          ,@native-inputs))
          (outputs outputs)
          (build android-ndk-build)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define android-ndk-build-system
   (build-system
diff --git a/guix/build-system/ant.scm b/guix/build-system/ant.scm
index cfb033f6a5..d4998b26e1 100644
--- a/guix/build-system/ant.scm
+++ b/guix/build-system/ant.scm
@@ -69,6 +69,7 @@ (define* (lower name
                 (jdk (default-jdk))
                 (ant (default-ant))
                 (zip (default-zip))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -92,7 +93,10 @@ (define* (lower name
                          ,@native-inputs))
          (outputs outputs)
          (build ant-build)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define* (ant-build name inputs
                     #:key
diff --git a/guix/build-system/asdf.scm b/guix/build-system/asdf.scm
index cd041eed4f..1adbe7d996 100644
--- a/guix/build-system/asdf.scm
+++ b/guix/build-system/asdf.scm
@@ -73,6 +73,7 @@ (define (default-lisp implementation)
 
 (define* (lower/source name
                        #:key source inputs outputs native-inputs system target
+                       (guile (default-guile))
                        #:allow-other-keys
                        #:rest arguments)
   "Return a bag for NAME"
@@ -91,7 +92,10 @@ (define* (lower/source name
          (build-inputs native-inputs)
          (outputs outputs)
          (build asdf-build/source)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define* (asdf-build/source name inputs
                             #:key source outputs
@@ -245,6 +249,7 @@ (define (lower lisp-type)
   (lambda* (name
             #:key source inputs outputs native-inputs system target
             (lisp (default-lisp (string->symbol lisp-type)))
+            (guile (default-guile))
             #:allow-other-keys
             #:rest arguments)
     "Return a bag for NAME"
@@ -264,7 +269,10 @@ (define (lower lisp-type)
                            ,@native-inputs))
            (outputs outputs)
            (build (asdf-build lisp-type))
-           (arguments (strip-keyword-arguments private-keywords arguments))))))
+           (arguments
+            (substitute-keyword-arguments
+                (strip-keyword-arguments private-keywords arguments)
+              ((#:guile _ #t) guile)))))))
 
 (define (asdf-build lisp-type)
   (lambda* (name inputs
diff --git a/guix/build-system/cargo.scm b/guix/build-system/cargo.scm
index 912400a191..84efea019e 100644
--- a/guix/build-system/cargo.scm
+++ b/guix/build-system/cargo.scm
@@ -238,6 +238,7 @@ (define* (lower name
                 (rust (default-rust))
                 (cargo-inputs '())
                 (cargo-development-inputs '())
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -264,7 +265,10 @@ (define* (lower name
                          ,@native-inputs))
          (outputs outputs)
          (build cargo-build)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define cargo-build-system
   (build-system
diff --git a/guix/build-system/chicken.scm b/guix/build-system/chicken.scm
index 9f518e66e6..ac1c5804ac 100644
--- a/guix/build-system/chicken.scm
+++ b/guix/build-system/chicken.scm
@@ -53,6 +53,7 @@ (define (default-chicken)
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (chicken (default-chicken))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -77,7 +78,10 @@ (define* (lower name
                          ,@native-inputs))
          (outputs outputs)
          (build chicken-build)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define* (chicken-build name inputs
                         #:key
diff --git a/guix/build-system/clojure.scm b/guix/build-system/clojure.scm
index fb897356bc..921edab912 100644
--- a/guix/build-system/clojure.scm
+++ b/guix/build-system/clojure.scm
@@ -75,6 +75,7 @@ (define* (lower name
                 (clojure (force %default-clojure))
                 (jdk (force %default-jdk))
                 (zip (force %default-zip))
+                (guile (default-guile))
                 outputs system
                 #:allow-other-keys
                 #:rest arguments)
@@ -98,8 +99,10 @@ (define* (lower name
                              ,@native-inputs))
              (outputs outputs)
              (build clojure-build)
-             (arguments (strip-keyword-arguments private-keywords
-                                                 arguments))))))
+             (arguments
+              (substitute-keyword-arguments
+                  (strip-keyword-arguments private-keywords arguments)
+                ((#:guile _ #t) guile)))))))
 
 (define* (clojure-build name inputs
                         #:key
diff --git a/guix/build-system/cmake.scm b/guix/build-system/cmake.scm
index aa187c9844..8db841992c 100644
--- a/guix/build-system/cmake.scm
+++ b/guix/build-system/cmake.scm
@@ -57,6 +57,7 @@ (define (default-cmake target)
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (cmake (default-cmake target))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -93,7 +94,10 @@ (define* (lower name
                        '()))
     (outputs outputs)
     (build (if target cmake-cross-build cmake-build))
-    (arguments (strip-keyword-arguments private-keywords arguments))))
+    (arguments
+     (substitute-keyword-arguments
+         (strip-keyword-arguments private-keywords arguments)
+       ((#:guile _ #t) guile)))))
 
 (define* (cmake-build name inputs
                       #:key guile source
diff --git a/guix/build-system/copy.scm b/guix/build-system/copy.scm
index d58931b33c..2507d77bcc 100644
--- a/guix/build-system/copy.scm
+++ b/guix/build-system/copy.scm
@@ -57,6 +57,7 @@ (define (default-glibc)
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (glibc (default-glibc))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME from the given arguments."
@@ -75,7 +76,10 @@ (define* (lower name
     (build-inputs native-inputs)
     (outputs outputs)
     (build copy-build)
-    (arguments (strip-keyword-arguments private-keywords arguments))))
+    (arguments
+     (substitute-keyword-arguments
+         (strip-keyword-arguments private-keywords arguments)
+       ((#:guile _ #t) guile)))))
 
 (define* (copy-build name inputs
                      #:key
diff --git a/guix/build-system/dub.scm b/guix/build-system/dub.scm
index b4011cdb83..1b9f21b052 100644
--- a/guix/build-system/dub.scm
+++ b/guix/build-system/dub.scm
@@ -106,6 +106,7 @@ (define* (lower name
                 (dub (default-dub))
                 (pkg-config (default-pkg-config))
                 (ld-gold-wrapper (default-ld-gold-wrapper))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -131,7 +132,10 @@ (define* (lower name
                          ,@native-inputs))
          (outputs outputs)
          (build dub-build)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define dub-build-system
   (build-system
diff --git a/guix/build-system/dune.scm b/guix/build-system/dune.scm
index c45f308349..bad523b9eb 100644
--- a/guix/build-system/dune.scm
+++ b/guix/build-system/dune.scm
@@ -57,6 +57,7 @@ (define* (lower name
                 (dune (default-dune))
                 (ocaml (ocaml:default-ocaml))
                 (findlib (ocaml:default-findlib))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -92,7 +93,9 @@ (define* (lower name
            (build dune-build)
            (arguments (append
                        `(#:dune-release-flags ,dune-release-flags)
-                       (strip-keyword-arguments private-keywords arguments)))))))
+                       (substitute-keyword-arguments
+                           (strip-keyword-arguments private-keywords arguments)
+                         ((#:guile _ #t) guile))))))))
 
 (define* (dune-build name inputs
                      #:key
diff --git a/guix/build-system/elm.scm b/guix/build-system/elm.scm
index f5321f811b..1c2b4a003e 100644
--- a/guix/build-system/elm.scm
+++ b/guix/build-system/elm.scm
@@ -119,6 +119,7 @@ (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (implicit-elm-package-inputs? #t)
                 (elm (default-elm))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -165,7 +166,10 @@ (define* (lower name
          ,@(standard-packages)))
       (outputs outputs)
       (build elm-build)
-      (arguments (strip-keyword-arguments private-keywords arguments))))))
+      (arguments
+       (substitute-keyword-arguments
+           (strip-keyword-arguments private-keywords arguments)
+         ((#:guile _ #t) guile)))))))
 
 (define* (elm-build name inputs
                     #:key
diff --git a/guix/build-system/emacs.scm b/guix/build-system/emacs.scm
index ebf97a5344..4ab2883769 100644
--- a/guix/build-system/emacs.scm
+++ b/guix/build-system/emacs.scm
@@ -57,6 +57,7 @@ (define (default-emacs)
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (emacs (default-emacs))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -78,7 +79,10 @@ (define* (lower name
                          ,@native-inputs))
          (outputs outputs)
          (build emacs-build)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define* (emacs-build name inputs
                       #:key source
diff --git a/guix/build-system/font.scm b/guix/build-system/font.scm
index c57c304f52..018b5c69dd 100644
--- a/guix/build-system/font.scm
+++ b/guix/build-system/font.scm
@@ -44,6 +44,7 @@ (define %font-build-system-modules
 
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -69,7 +70,10 @@ (define* (lower name
                                ("xz" xz))))))
     (outputs outputs)
     (build font-build)
-    (arguments (strip-keyword-arguments private-keywords arguments))))
+    (arguments
+     (substitute-keyword-arguments
+         (strip-keyword-arguments private-keywords arguments)
+       ((#:guile _ #t) guile)))))
 
 (define* (font-build name inputs
                      #:key source
diff --git a/guix/build-system/glib-or-gtk.scm b/guix/build-system/glib-or-gtk.scm
index 726d19efad..f8d5a0fa24 100644
--- a/guix/build-system/glib-or-gtk.scm
+++ b/guix/build-system/glib-or-gtk.scm
@@ -87,6 +87,7 @@ (define* (lower name
                 (implicit-inputs? #t)
                 (implicit-cross-inputs? #t)
                 (strip-binaries? #t)
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -120,7 +121,10 @@ (define* (lower name
                        '()))
     (outputs outputs)
     (build (if target glib-or-gtk-cross-build glib-or-gtk-build))
-    (arguments (strip-keyword-arguments private-keywords arguments))))
+    (arguments
+     (substitute-keyword-arguments
+         (strip-keyword-arguments private-keywords arguments)
+       ((#:guile _ #t) guile)))))
 
 (define* (glib-or-gtk-build name inputs
                             #:key guile source
diff --git a/guix/build-system/gnu.scm b/guix/build-system/gnu.scm
index c1aa187c42..7945efa1c3 100644
--- a/guix/build-system/gnu.scm
+++ b/guix/build-system/gnu.scm
@@ -278,6 +278,7 @@ (define* (lower name
                 #:key source inputs native-inputs outputs target
                 (implicit-inputs? #t) (implicit-cross-inputs? #t)
                 (strip-binaries? #t) system
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME from the given arguments."
@@ -319,7 +320,10 @@ (define* (lower name
                  outputs
                  (delete "debug" outputs)))
     (build (if target gnu-cross-build gnu-build))
-    (arguments (strip-keyword-arguments private-keywords arguments))))
+    (arguments
+     (substitute-keyword-arguments
+         (strip-keyword-arguments private-keywords arguments)
+       ((#:guile _ #t) guile)))))
 
 (define %license-file-regexp
   ;; Regexp matching license files.
diff --git a/guix/build-system/go.scm b/guix/build-system/go.scm
index 0a9761aac7..e27633b624 100644
--- a/guix/build-system/go.scm
+++ b/guix/build-system/go.scm
@@ -120,6 +120,7 @@ (define (make-go-std)
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (go (default-go))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -164,7 +165,10 @@ (define* (lower name
 
     (outputs outputs)
     (build (if target go-cross-build go-build))
-    (arguments (strip-keyword-arguments private-keywords arguments))))
+    (arguments
+     (substitute-keyword-arguments
+         (strip-keyword-arguments private-keywords arguments)
+       ((#:guile _ #t) guile)))))
 
 (define* (go-build name inputs
                    #:key
diff --git a/guix/build-system/guile.scm b/guix/build-system/guile.scm
index 1bd292e267..49d8cc77a7 100644
--- a/guix/build-system/guile.scm
+++ b/guix/build-system/guile.scm
@@ -68,7 +68,10 @@ (define* (lower name
                           '())))
     (outputs outputs)
     (build (if target guile-cross-build guile-build))
-    (arguments (strip-keyword-arguments private-keywords arguments))))
+    (arguments
+     (substitute-keyword-arguments
+         (strip-keyword-arguments private-keywords arguments)
+       ((#:guile _ #t) (default-guile))))))
 
 (define %compile-flags
   ;; Flags passed to 'guild compile' by default.  We choose a common
diff --git a/guix/build-system/haskell.scm b/guix/build-system/haskell.scm
index f8568e33db..b860550998 100644
--- a/guix/build-system/haskell.scm
+++ b/guix/build-system/haskell.scm
@@ -77,6 +77,7 @@ (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (haskell (default-haskell))
                 cabal-revision
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -122,7 +123,8 @@ (define* (lower name
                             (match (package-transitive-propagated-inputs pkg)
                               (((propagated-names . _) ...)
                                (cons name propagated-names))))))
-                       extra-directories))))))))
+                       extra-directories)))
+            ((#:guile _ #t) guile))))))
 
 (define* (haskell-build name inputs
                         #:key source
diff --git a/guix/build-system/julia.scm b/guix/build-system/julia.scm
index b5521e38e4..b4fc7f6576 100644
--- a/guix/build-system/julia.scm
+++ b/guix/build-system/julia.scm
@@ -53,6 +53,7 @@ (define (default-julia)
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (julia (default-julia))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -74,7 +75,10 @@ (define* (lower name
                          ,@native-inputs))
          (outputs outputs)
          (build julia-build)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define* (julia-build name inputs
                       #:key source
diff --git a/guix/build-system/linux-module.scm b/guix/build-system/linux-module.scm
index e46195b53c..d286ea9cee 100644
--- a/guix/build-system/linux-module.scm
+++ b/guix/build-system/linux-module.scm
@@ -112,6 +112,7 @@ (define* (lower name
                 #:key source inputs native-inputs outputs
                 system target
                 (linux (default-linux))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -148,7 +149,10 @@ (define* (lower name
                        '()))
     (outputs outputs)
     (build (if target linux-module-build-cross linux-module-build))
-    (arguments (strip-keyword-arguments private-keywords arguments))))
+    (arguments
+     (substitute-keyword-arguments
+         (strip-keyword-arguments private-keywords arguments)
+       ((#:guile _ #t) guile)))))
 
 (define* (linux-module-build name inputs
                              #:key
diff --git a/guix/build-system/maven.scm b/guix/build-system/maven.scm
index 4bbeaed6a4..b7734a1a07 100644
--- a/guix/build-system/maven.scm
+++ b/guix/build-system/maven.scm
@@ -116,6 +116,7 @@ (define* (lower name
                 (maven-plugins (default-maven-plugins))
                 (local-packages '())
                 (exclude %default-exclude)
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -139,7 +140,10 @@ (define* (lower name
                          ,@native-inputs))
          (outputs outputs)
          (build maven-build)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define* (maven-build name inputs
                       #:key
diff --git a/guix/build-system/meson.scm b/guix/build-system/meson.scm
index 7c617bffb0..13e2e87b58 100644
--- a/guix/build-system/meson.scm
+++ b/guix/build-system/meson.scm
@@ -125,6 +125,7 @@ (define* (lower name
                 (meson (default-meson))
                 (ninja (default-ninja))
                 (glib-or-gtk? #f)
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -156,7 +157,10 @@ (define* (lower name
                        '()))
     (outputs outputs)
     (build (if target meson-cross-build meson-build))
-    (arguments (strip-keyword-arguments private-keywords arguments))))
+    (arguments
+     (substitute-keyword-arguments
+         (strip-keyword-arguments private-keywords arguments)
+       ((#:guile _ #t) guile)))))
 
 (define* (meson-build name inputs
                       #:key
diff --git a/guix/build-system/minify.scm b/guix/build-system/minify.scm
index 787235deeb..384748908c 100644
--- a/guix/build-system/minify.scm
+++ b/guix/build-system/minify.scm
@@ -50,6 +50,7 @@ (define (default-uglify-js)
 (define* (lower name
                 #:key source inputs native-inputs outputs system
                 (uglify-js (default-uglify-js))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -68,7 +69,10 @@ (define* (lower name
                     ,@native-inputs))
     (outputs outputs)
     (build minify-build)
-    (arguments (strip-keyword-arguments private-keywords arguments))))
+    (arguments
+     (substitute-keyword-arguments
+         (strip-keyword-arguments private-keywords arguments)
+       ((#:guile _ #t) guile)))))
 
 (define* (minify-build name inputs
                        #:key
diff --git a/guix/build-system/node.scm b/guix/build-system/node.scm
index 3f73390809..0b1c1f1ddd 100644
--- a/guix/build-system/node.scm
+++ b/guix/build-system/node.scm
@@ -48,6 +48,7 @@ (define (default-node)
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (node (default-node))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -74,7 +75,10 @@ (define* (lower name
                          ,@native-inputs))
          (outputs outputs)
          (build node-build)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define* (node-build name inputs
                      #:key
diff --git a/guix/build-system/ocaml.scm b/guix/build-system/ocaml.scm
index 582d00b4cd..91dda0c391 100644
--- a/guix/build-system/ocaml.scm
+++ b/guix/build-system/ocaml.scm
@@ -229,6 +229,7 @@ (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (ocaml (default-ocaml))
                 (findlib (default-findlib))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -251,7 +252,10 @@ (define* (lower name
                          ,@(standard-packages)))
          (outputs outputs)
          (build ocaml-build)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define* (ocaml-build name inputs
                       #:key
diff --git a/guix/build-system/perl.scm b/guix/build-system/perl.scm
index 7c6deb34bf..99e952a531 100644
--- a/guix/build-system/perl.scm
+++ b/guix/build-system/perl.scm
@@ -58,6 +58,7 @@ (define* (lower name
                 #:key source inputs native-inputs outputs
                 system target
                 (perl (default-perl))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -99,7 +100,10 @@ (define* (lower name
     (build (if target
                perl-cross-build
                perl-build))
-    (arguments (strip-keyword-arguments private-keywords arguments))))
+    (arguments
+     (substitute-keyword-arguments
+         (strip-keyword-arguments private-keywords arguments)
+       ((#:guile _ #t) guile)))))
 
 (define* (perl-build name inputs
                      #:key source
diff --git a/guix/build-system/pyproject.scm b/guix/build-system/pyproject.scm
index 2a2c3af3f3..41b4d2c23f 100644
--- a/guix/build-system/pyproject.scm
+++ b/guix/build-system/pyproject.scm
@@ -60,6 +60,7 @@ (define sanity-check.py
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (python (default-python))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -82,7 +83,10 @@ (define* (lower name
                          ,@native-inputs))
          (outputs (append outputs '(wheel)))
          (build pyproject-build)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define* (pyproject-build name inputs
                           #:key source
diff --git a/guix/build-system/python.scm b/guix/build-system/python.scm
index cca009fb28..f8657662af 100644
--- a/guix/build-system/python.scm
+++ b/guix/build-system/python.scm
@@ -142,6 +142,7 @@ (define (strip-python2-variant p)
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (python (default-python))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -164,7 +165,10 @@ (define* (lower name
                          ,@native-inputs))
          (outputs outputs)
          (build python-build)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define* (python-build name inputs
                        #:key source
diff --git a/guix/build-system/qt.scm b/guix/build-system/qt.scm
index 978aed0fc1..97f870a698 100644
--- a/guix/build-system/qt.scm
+++ b/guix/build-system/qt.scm
@@ -80,6 +80,7 @@ (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (cmake (default-cmake))
                 (qtbase (default-qtbase))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -116,7 +117,11 @@ (define* (lower name
                        '()))
     (outputs outputs)
     (build (if target qt-cross-build qt-build))
-    (arguments (strip-keyword-arguments private-keywords arguments))))
+    (arguments
+     (substitute-keyword-arguments
+         (strip-keyword-arguments private-keywords arguments)
+       ((#:qtbase _ #t) qtbase)
+       ((#:guile _ #t) guile)))))
 
 
 (define* (qt-build name inputs
diff --git a/guix/build-system/r.scm b/guix/build-system/r.scm
index 657346bea3..ed70d7b758 100644
--- a/guix/build-system/r.scm
+++ b/guix/build-system/r.scm
@@ -79,6 +79,7 @@ (define (default-r)
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (r (default-r))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -100,7 +101,10 @@ (define* (lower name
                          ,@native-inputs))
          (outputs outputs)
          (build r-build)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define* (r-build name inputs
                   #:key
diff --git a/guix/build-system/rakudo.scm b/guix/build-system/rakudo.scm
index 3b30fdfd0e..654b0c362b 100644
--- a/guix/build-system/rakudo.scm
+++ b/guix/build-system/rakudo.scm
@@ -68,6 +68,7 @@ (define* (lower name
                 (zef (default-zef))
                 (with-prove6? #t)
                 (with-zef? #t)
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -95,7 +96,10 @@ (define* (lower name
                          ,@native-inputs))
          (outputs outputs)
          (build rakudo-build)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define* (rakudo-build name inputs
                        #:key
diff --git a/guix/build-system/rebar.scm b/guix/build-system/rebar.scm
index de1294ec3f..e89f82b768 100644
--- a/guix/build-system/rebar.scm
+++ b/guix/build-system/rebar.scm
@@ -74,6 +74,7 @@ (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (rebar (default-rebar3))
                 (erlang (default-erlang))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME from the given arguments."
@@ -95,7 +96,10 @@ (define* (lower name
                          ,@(standard-packages)))
          (outputs outputs)
          (build rebar-build)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define* (rebar-build name inputs
                        #:key
diff --git a/guix/build-system/renpy.scm b/guix/build-system/renpy.scm
index 3039e3c63b..75d546fedc 100644
--- a/guix/build-system/renpy.scm
+++ b/guix/build-system/renpy.scm
@@ -49,6 +49,7 @@ (define %renpy-build-system-modules
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (renpy (default-renpy))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -70,7 +71,10 @@ (define* (lower name
                          ,@native-inputs))
          (outputs outputs)
          (build renpy-build)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define* (renpy-build name inputs
                       #:key
diff --git a/guix/build-system/ruby.scm b/guix/build-system/ruby.scm
index a3793a9381..be8df2a93c 100644
--- a/guix/build-system/ruby.scm
+++ b/guix/build-system/ruby.scm
@@ -50,6 +50,7 @@ (define (default-ruby)
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (ruby (default-ruby))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -71,7 +72,10 @@ (define* (lower name
                          ,@native-inputs))
          (outputs outputs)
          (build ruby-build)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define* (ruby-build name inputs
                      #:key source
diff --git a/guix/build-system/scons.scm b/guix/build-system/scons.scm
index 046ddef740..95c75c817f 100644
--- a/guix/build-system/scons.scm
+++ b/guix/build-system/scons.scm
@@ -50,6 +50,7 @@ (define (default-scons)
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (scons (default-scons))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -71,7 +72,10 @@ (define* (lower name
                          ,@native-inputs))
          (outputs outputs)
          (build scons-build)
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define* (scons-build name inputs
                       #:key
diff --git a/guix/build-system/texlive.scm b/guix/build-system/texlive.scm
index 88372faa58..941fa37b5f 100644
--- a/guix/build-system/texlive.scm
+++ b/guix/build-system/texlive.scm
@@ -98,6 +98,7 @@ (define* (lower name
                 system target
                 (texlive-latex-bin? #true)
                 (texlive-bin (default-texlive-bin))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -122,7 +123,10 @@ (define* (lower name
                     ,@native-inputs))
     (outputs outputs)
     (build texlive-build)
-    (arguments (strip-keyword-arguments private-keywords arguments))))
+    (arguments
+     (substitute-keyword-arguments
+         (strip-keyword-arguments private-keywords arguments)
+       ((#:guile _ #t) guile)))))
 
 (define* (texlive-build name inputs
                         #:key
diff --git a/guix/build-system/tree-sitter.scm b/guix/build-system/tree-sitter.scm
index 21c4eb35b2..1ea0c58817 100644
--- a/guix/build-system/tree-sitter.scm
+++ b/guix/build-system/tree-sitter.scm
@@ -38,6 +38,7 @@ (define %tree-sitter-build-system-modules
 
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME from the given arguments."
@@ -87,7 +88,10 @@ (define* (lower name
                (("out") (cons "js" outputs))
                (_ outputs)))
     (build (if target tree-sitter-cross-build tree-sitter-build))
-    (arguments (strip-keyword-arguments private-keywords arguments))))
+    (arguments
+     (substitute-keyword-arguments
+         (strip-keyword-arguments private-keywords arguments)
+       ((#:guile _ #t) guile)))))
 
 (define* (tree-sitter-build name inputs
                             #:key
diff --git a/guix/build-system/trivial.scm b/guix/build-system/trivial.scm
index e08884baf1..37798cbf7a 100644
--- a/guix/build-system/trivial.scm
+++ b/guix/build-system/trivial.scm
@@ -26,7 +26,8 @@ (define-module (guix build-system trivial)
 
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
-                guile builder (modules '()) allowed-references)
+                (guile (default-guile)) builder (modules '())
+                allowed-references)
   "Return a bag for NAME."
   (bag
     (name name)
diff --git a/guix/build-system/waf.scm b/guix/build-system/waf.scm
index 91b3d0d100..abb87156c7 100644
--- a/guix/build-system/waf.scm
+++ b/guix/build-system/waf.scm
@@ -47,6 +47,7 @@ (define %waf-build-system-modules
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (python (default-python))
+                (guile (default-guile))
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
@@ -68,7 +69,10 @@ (define* (lower name
                          ,@native-inputs))
          (outputs outputs)
          (build waf-build) ; only change compared to 'lower' in python.scm
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
 
 (define* (waf-build name inputs
                     #:key source
-- 
2.40.1


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From 9ec825fd06f32757f45f31880e7b238bba769884 Mon Sep 17 00:00:00 2001
Message-Id: <9ec825fd06f32757f45f31880e7b238bba769884.1694806866.git.striness@tilde.club>
In-Reply-To: <73b2dfe98591073104fd069622ede2acab0c7655.1694806866.git.striness@tilde.club>
References: <73b2dfe98591073104fd069622ede2acab0c7655.1694806866.git.striness@tilde.club>
From: Ulf Herrman <striness@tilde.club>
Date: Fri, 15 Sep 2023 08:45:39 -0500
Subject: [PATCH 4/5] build-system: {cargo,dune,ocaml,scons}: use drv
 guile-for-build.

These all pass a guile *package* to gexp->derivation in their bag->derivation
builders, but it wants a derivation.

* guix/build-system/cargo.scm (cargo-build): use package->derivation to get
  guile for build.
* guix/build-system/dune.scm (dune-build): same.
* guix/build-system/ocaml.scm (ocaml-build): same.
* guix/build-system/scons.scm (scons-build): same.
---
 guix/build-system/cargo.scm | 12 +++++++-----
 guix/build-system/dune.scm  | 14 ++++++++------
 guix/build-system/ocaml.scm | 13 ++++++++-----
 guix/build-system/scons.scm | 13 ++++++++-----
 4 files changed, 31 insertions(+), 21 deletions(-)

diff --git a/guix/build-system/cargo.scm b/guix/build-system/cargo.scm
index 84efea019e..30d6d2ead9 100644
--- a/guix/build-system/cargo.scm
+++ b/guix/build-system/cargo.scm
@@ -120,11 +120,13 @@ (define* (cargo-build name inputs
                                           (map search-path-specification->sexp
                                                search-paths))))))
 
-  (gexp->derivation name builder
-                    #:system system
-                    #:target #f
-                    #:graft? #f
-                    #:guile-for-build guile))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:target #f
+                      #:graft? #f
+                      #:guile-for-build guile)))
 
 (define (package-cargo-inputs p)
   (apply
diff --git a/guix/build-system/dune.scm b/guix/build-system/dune.scm
index bad523b9eb..1bf93361aa 100644
--- a/guix/build-system/dune.scm
+++ b/guix/build-system/dune.scm
@@ -21,6 +21,7 @@
 
 (define-module (guix build-system dune)
   #:use-module (guix store)
+  #:use-module (guix monads)
   #:use-module (guix utils)
   #:use-module (guix gexp)
   #:use-module (guix search-paths)
@@ -154,12 +155,13 @@ (define* (dune-build name inputs
                       #:strip-binaries? #$strip-binaries?
                       #:strip-flags #$strip-flags
                       #:strip-directories #$strip-directories))))
-
-  (gexp->derivation name builder
-                    #:system system
-                    #:target #f
-                    #:graft? #f
-                    #:guile-for-build guile))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:target #f
+                      #:graft? #f
+                      #:guile-for-build guile)))
 
 (define dune-build-system
   (build-system
diff --git a/guix/build-system/ocaml.scm b/guix/build-system/ocaml.scm
index 91dda0c391..20327295f9 100644
--- a/guix/build-system/ocaml.scm
+++ b/guix/build-system/ocaml.scm
@@ -21,6 +21,7 @@ (define-module (guix build-system ocaml)
   #:use-module (guix store)
   #:use-module (guix utils)
   #:use-module (guix gexp)
+  #:use-module (guix monads)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -309,11 +310,13 @@ (define* (ocaml-build name inputs
                        #:strip-flags #$strip-flags
                        #:strip-directories #$strip-directories))))
 
-  (gexp->derivation name builder
-                    #:system system
-                    #:target #f
-                    #:graft? #f
-                    #:guile-for-build guile))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:target #f
+                      #:graft? #f
+                      #:guile-for-build guile)))
 
 (define ocaml-build-system
   (build-system
diff --git a/guix/build-system/scons.scm b/guix/build-system/scons.scm
index 95c75c817f..e504db90c2 100644
--- a/guix/build-system/scons.scm
+++ b/guix/build-system/scons.scm
@@ -22,6 +22,7 @@ (define-module (guix build-system scons)
   #:use-module (guix packages)
   #:use-module (guix monads)
   #:use-module (guix gexp)
+  #:use-module (guix store)
   #:use-module (guix search-paths)
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
@@ -121,11 +122,13 @@ (define* (scons-build name inputs
                                  (map search-path-specification->sexp
                                       search-paths)))))))
 
-  (gexp->derivation name builder
-                    #:system system
-                    #:target #f
-                    #:graft? #f
-                    #:guile-for-build guile))
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:target #f
+                      #:graft? #f
+                      #:guile-for-build guile)))
 
 (define scons-build-system
   (build-system
-- 
2.40.1


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From 32a455ab2852c6ff015a2126953075c67a3371b9 Mon Sep 17 00:00:00 2001
Message-Id: <32a455ab2852c6ff015a2126953075c67a3371b9.1694806866.git.striness@tilde.club>
In-Reply-To: <73b2dfe98591073104fd069622ede2acab0c7655.1694806866.git.striness@tilde.club>
References: <73b2dfe98591073104fd069622ede2acab0c7655.1694806866.git.striness@tilde.club>
From: Ulf Herrman <striness@tilde.club>
Date: Fri, 15 Sep 2023 08:53:10 -0500
Subject: [PATCH 5/5] build-system: dub: add #:ld-gold-wrapper to
 private-keywords.

This isn't an accepted keyword to dub-build, so it will currently cause an
error if it is specified, which rather defeats the purpose of having it as an
argument.  Putting it in private-keywords will cause it to be stripped from
the final bag arguments.

* guix/build-system/dub.scm (lower): add #:ld-gold-wrapper to
  private-keywords.
---
 guix/build-system/dub.scm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/guix/build-system/dub.scm b/guix/build-system/dub.scm
index 1b9f21b052..b325357589 100644
--- a/guix/build-system/dub.scm
+++ b/guix/build-system/dub.scm
@@ -112,7 +112,8 @@ (define* (lower name
   "Return a bag for NAME."
 
   (define private-keywords
-    '(#:target #:ldc #:dub #:pkg-config #:inputs #:native-inputs #:outputs))
+    '(#:target #:ldc #:dub #:pkg-config #:ld-gold-wrapper
+      #:inputs #:native-inputs #:outputs))
 
   (and (not target) ;; TODO: support cross-compilation
        (bag
-- 
2.40.1


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^ permalink raw reply related	[flat|nested] 23+ messages in thread

* bug#65665: [PATCH] Really get all the implicit inputs.
  2023-09-16  9:45 ` bug#65665: [PATCH] Really " Ulf Herrman
@ 2023-10-06  2:36   ` Maxim Cournoyer
  2023-10-06  7:37     ` Ulf Herrman
                       ` (2 more replies)
  2023-10-12 14:06   ` bug#65665: package-mapping with #:deep? #t doesn't " Ludovic Courtès
  1 sibling, 3 replies; 23+ messages in thread
From: Maxim Cournoyer @ 2023-10-06  2:36 UTC (permalink / raw)
  To: Ulf Herrman; +Cc: dev, zimon.toutoune, othacehe, ludo, me, 65665, rekado, guix

Hello Ulf!

Ulf Herrman <striness@tilde.club> writes:

> This patch series causes package-mapping to recurse into package and bag
> arguments when #:deep? #t is given.  It also recurses into gexps and
> gexp inputs in search of packages to devour.  It also ensures that build
> systems leave all of their implicit package arguments in the bag
> arguments, ready to be found by package-mapping.  It also fixes a couple
> build system errors I came across while modifying 40+ build systems and
> testing a deep package transformation.

Nice series!

I've reviewed it, and it makes sense to me.  I'd like to apply it to the
core-updates branch.  Core team, what say you?

-- 
Thanks,
Maxim




^ permalink raw reply	[flat|nested] 23+ messages in thread

* bug#65665: [PATCH] Really get all the implicit inputs.
  2023-10-06  2:36   ` Maxim Cournoyer
@ 2023-10-06  7:37     ` Ulf Herrman
  2023-10-07  3:47       ` Ulf Herrman
  2023-10-12 13:47       ` bug#65665: package-mapping with #:deep? #t doesn't " Ludovic Courtès
  2023-10-12  7:07     ` bug#65665: [PATCH] Really " Ludovic Courtès
  2023-10-12 14:22     ` Simon Tournier
  2 siblings, 2 replies; 23+ messages in thread
From: Ulf Herrman @ 2023-10-06  7:37 UTC (permalink / raw)
  To: Maxim Cournoyer; +Cc: Ulf Herrman, 65665


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I've also been using this patch, which rebinds `this-package' within
package variants to refer instead to the variant rather than the
original.  When I tried applying a deep transformation to icecat, it
failed to reach icecat-minimal or something like that.  Or maybe it was
some input of icecat - might have been my local version of mesa that had
breakage.  Anyway, I've since forgotten exactly what happened and why (I
didn't actually write the commit message until quite some time later),
but I do know that this patch fixed it.

I might try to rediscover what the problem was later, but thought it
would be good to make you aware of this so as to hopefully consolidate
world rebuilds.

- Ulf


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From 06245c37fc0ee21144279682223dff01f3e6dbf4 Mon Sep 17 00:00:00 2001
Message-Id: <06245c37fc0ee21144279682223dff01f3e6dbf4.1696574074.git.striness@tilde.club>
From: Ulf Herrman <striness@tilde.club>
Date: Wed, 4 Oct 2023 03:17:25 -0500
Subject: [PATCH] guix: packages: rebind `this-package' for package variants.

Background: there is a `this-package' identifier that can be used within any
of the thunked fields of <package>.  This is implemented by passing the
package in question as an argument to the "thunk" that is called to get the
field value.  `this-package' is used to implement macros like
`this-package-input'.  Consequently, there is a subtle difference between a
package that inherits another package's thunked field and one that wraps it:
in the former, the `this-package' of the thunked field will refer to the
inheriting package, while in the latter case it will refer to the original
package.

Use of `this-package' tends to cause lots of subtle and hard-to-debug breakage
when package transformations are used.  In `package-mapping', it makes more
sense to have `this-package' refer to the transformed package (that is, the
package after being transformed by the user-provided procedure and having all
of its applicable inputs transformed, recursively), since otherwise
untransformed inputs may be reintroduced via `this-package'.

There's still one place where `this-package' can cause problems, though, and
that's in the user-specified transformation procedure itself.  Whether it's
appropriate to have the thunks of the original refer to the original package
or the transformed package is only really known by the author of the
transformation.  We therefore expose procedures for invoking the field thunks
with arbitrary packages.

In my experience, this has led to far more consistent and predictable
package-transforming.

If we really need the ability to refer to the lexically enclosing package
instead of "whichever package ends up using this field definition" - which
seems to be unnecessary at present, since the overwhelming majority of uses of
'this-package' are in the context of 'this-package-input', etc - we could
introduce a 'this-literal-package' identifier.  Or we could rename all current
uses of 'this-package' to use 'this-package-variant' or something like that,
though that sounds like more work.

* guix/packages.scm (package-inputs-with-package,
  package-native-inputs-with-package, package-propagated-inputs-with-package,
  package-arguments-with-package):
  new procedures.
  (package-mapping): use them.
---
 guix/packages.scm | 61 ++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 47 insertions(+), 14 deletions(-)

diff --git a/guix/packages.scm b/guix/packages.scm
index 1334def142..288867b911 100644
--- a/guix/packages.scm
+++ b/guix/packages.scm
@@ -138,6 +138,11 @@ (define-module (guix packages)
             package-transitive-propagated-inputs
             package-transitive-native-search-paths
             package-transitive-supported-systems
+            package-inputs-with-package
+            package-native-inputs-with-package
+            package-propagated-inputs-with-package
+            package-arguments-with-package
+
             package-mapping
             package-input-rewriting
             package-input-rewriting/spec
@@ -1451,6 +1456,31 @@ (define (build-system-with-package-mapping bs rewrite-input rewrite-argument)
     (inherit bs)
     (lower lower*)))
 
+(define (package-inputs-with-package p0 p)
+  (match p0
+    (($ <package> _ _ _ _ args-proc
+                   inputs-proc
+                   propagated-inputs-proc
+                   native-inputs-proc)
+     (inputs-proc p))))
+
+(define (package-native-inputs-with-package p0 p)
+  (match p0
+    (($ <package> _ _ _ _ _ _ _
+                   native-inputs-proc)
+     (native-inputs-proc p))))
+
+(define (package-propagated-inputs-with-package p0 p)
+  (match p0
+    (($ <package> _ _ _ _ _ _
+                   propagated-inputs-proc)
+     (propagated-inputs-proc p))))
+
+(define (package-arguments-with-package p0 p)
+  (match p0
+    (($ <package> _ _ _ _ arguments-proc)
+     (arguments-proc p))))
+
 (define* (package-mapping proc #:optional (cut? (const #f))
                           #:key deep?)
   "Return a procedure that, given a package, applies PROC to all the packages
@@ -1525,22 +1555,25 @@ (define* (package-mapping proc #:optional (cut? (const #f))
                                     rewrite-input
                                     rewrite-argument)
                                    (package-build-system p)))
-                 (inputs (map rewrite-input (package-inputs p)))
-                 (native-inputs (map rewrite-input (package-native-inputs p)))
+                 (inputs (map rewrite-input
+                              (package-inputs-with-package p this-package)))
+                 (native-inputs (map rewrite-input
+                                     (package-native-inputs-with-package
+                                      p this-package)))
                  (propagated-inputs
-                  (map rewrite-input (package-propagated-inputs p)))
+                  (map rewrite-input
+                       (package-propagated-inputs-with-package
+                        p this-package)))
                  (arguments
-                  (match p
-                       (($ <package> _ _ _ _ args-proc)
-                        ;; If we let ARGS-PROC be passed its original package,
-                        ;; we somehow end up in an infinite (or maybe just
-                        ;; exponential? Never seen it end...) loop.  Should
-                        ;; probably figure out what's causing that at some
-                        ;; point.
-                        (let ((args (args-proc this-package)))
-                          (if deep?
-                              (map rewrite-argument args)
-                              args)))))
+                  ;; If we let ARGS-PROC be passed its original package,
+                  ;; we somehow end up in an infinite (or maybe just
+                  ;; exponential? Never seen it end...) loop.  Should
+                  ;; probably figure out what's causing that at some
+                  ;; point.
+                  (if deep?
+                      (map rewrite-argument (package-arguments-with-package
+                                             p this-package))
+                      (package-arguments-with-package p this-package)))
                  (replacement (and=> (package-replacement p) replace))
                  (properties `((,mapping-property . #t)
                                ,@(package-properties p)))))))))

-- 
2.40.1


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^ permalink raw reply related	[flat|nested] 23+ messages in thread

* bug#65665: [PATCH] Really get all the implicit inputs.
  2023-10-06  7:37     ` Ulf Herrman
@ 2023-10-07  3:47       ` Ulf Herrman
  2023-10-12 13:47       ` bug#65665: package-mapping with #:deep? #t doesn't " Ludovic Courtès
  1 sibling, 0 replies; 23+ messages in thread
From: Ulf Herrman @ 2023-10-07  3:47 UTC (permalink / raw)
  To: Ulf Herrman; +Cc: Maxim Cournoyer, 65665

[-- Attachment #1: Type: text/plain, Size: 2193 bytes --]

Ulf Herrman <striness@tilde.club> writes:

> Anyway, I've since forgotten exactly what happened and why (I didn't
> actually write the commit message until quite some time later), but I
> do know that this patch fixed it.
>
> I might try to rediscover what the problem was later, but thought it
> would be good to make you aware of this so as to hopefully consolidate
> world rebuilds.

I've since done some more checking to recall what the problem actually
was, and it indeed manifested as a combination of an icecat and mesa
problem: the wrap-program phase of icecat-minimal uses
`this-package-input' to get the mesa to point LD_LIBRARY_PATH to.
However, it then stuffs the resulting package inside a <file-append>
object, which we don't currently recurse through, so it ends up
compiling with one mesa and using another at runtime, which somehow
causes a segmentation fault.

Having looked at it again, I'm not sure that rebinding `this-package' is
the best solution - it's certainly not a general solution, since any old
package could be shoved into a <file-append> object (or really any
declarative file-like object) and thereby be hidden from
transformations.  My understanding is that packaging guidelines already
discourage directly substituting top-level package references,
preferring instead tools like `this-package-input' so as to work nicely
with transformations.  If those guidelines are adhered to, the
aforementioned patch should fix issues of this nature.  I'm not sure
what the best way of handling objects like <file-append> and such is,
but as long as package references go through `this-package', it should
only matter for implicit inputs, and I don't think any of them use
declarative file-like objects other than <package>.

After thinking about it some more, I think it would be good if we had a
way of testing to make sure that every package is "transformable": that
is, if you apply a deep transformation to it, and lower the result to a
derivation, at no point within the dynamic extent of that lowering is a
derivation from an untransformed package introduced.  This would allow
for testing for transformability en masse, and could be added to 'guix
lint'.

- Ulf

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^ permalink raw reply	[flat|nested] 23+ messages in thread

* bug#65665: [PATCH] Really get all the implicit inputs.
  2023-10-06  2:36   ` Maxim Cournoyer
  2023-10-06  7:37     ` Ulf Herrman
@ 2023-10-12  7:07     ` Ludovic Courtès
  2023-10-12 14:22     ` Simon Tournier
  2 siblings, 0 replies; 23+ messages in thread
From: Ludovic Courtès @ 2023-10-12  7:07 UTC (permalink / raw)
  To: Maxim Cournoyer
  Cc: dev, Ulf Herrman, zimon.toutoune, othacehe, me, 65665, rekado,
	guix

Hi!

Maxim Cournoyer <maxim.cournoyer@gmail.com> skribis:

> Ulf Herrman <striness@tilde.club> writes:
>
>> This patch series causes package-mapping to recurse into package and bag
>> arguments when #:deep? #t is given.  It also recurses into gexps and
>> gexp inputs in search of packages to devour.  It also ensures that build
>> systems leave all of their implicit package arguments in the bag
>> arguments, ready to be found by package-mapping.  It also fixes a couple
>> build system errors I came across while modifying 40+ build systems and
>> testing a deep package transformation.
>
> Nice series!
>
> I've reviewed it, and it makes sense to me.  I'd like to apply it to the
> core-updates branch.  Core team, what say you?

Sorry for the delay, I’ll provide feedback within a couple of days.

Ludo’.




^ permalink raw reply	[flat|nested] 23+ messages in thread

* bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs
  2023-10-06  7:37     ` Ulf Herrman
  2023-10-07  3:47       ` Ulf Herrman
@ 2023-10-12 13:47       ` Ludovic Courtès
  1 sibling, 0 replies; 23+ messages in thread
From: Ludovic Courtès @ 2023-10-12 13:47 UTC (permalink / raw)
  To: Ulf Herrman; +Cc: Maxim Cournoyer, 65665

Hi,

Ulf Herrman <striness@tilde.club> skribis:

> I've also been using this patch, which rebinds `this-package' within
> package variants to refer instead to the variant rather than the
> original.

Could you send it as a separate issue?

(I think I once reported a bug for this issue, but I can’t find it.)

Ludo’.




^ permalink raw reply	[flat|nested] 23+ messages in thread

* bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs
  2023-08-31 20:14 bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs Ulf Herrman
                   ` (3 preceding siblings ...)
  2023-09-16  9:45 ` bug#65665: [PATCH] Really " Ulf Herrman
@ 2023-10-12 13:53 ` Ludovic Courtès
  2023-10-12 15:53   ` Maxim Cournoyer
  4 siblings, 1 reply; 23+ messages in thread
From: Ludovic Courtès @ 2023-10-12 13:53 UTC (permalink / raw)
  To: Ulf Herrman; +Cc: 65665

Hi Ulf,

Ulf Herrman <striness@tilde.club> skribis:

> In short, the current approach of having the build-system lower
> procedure leave the arguments mostly unchanged and letting the
> bag->derivation procedure (the "bag builder") fill in lots of defaults
> means that there are implicit inputs that cannot be touched at the
> package level without adding special logic for every single build system
> that does something like this.

Could you share an example of what is fixed by these changes?

Let’s take ‘python-itsdangerous’ as an example.  It has zero inputs,
only implicit dependencies, yet I can do this:

--8<---------------cut here---------------start------------->8---
$ guix build python-itsdangerous -n
substitute: updating substitutes from 'http://192.168.1.48:8123'... 100.0%
0.0 MB would be downloaded:
  /gnu/store/yhvhrmqd5znjs7vsq8kc55nc3rkg4w6x-python-itsdangerous-2.0.1

$ guix build python-itsdangerous --with-input=python=python2 -n
The following derivations would be built:
  /gnu/store/b1hji2qzdiwfg2wx11l1fyjrgiy0f50v-python-itsdangerous-2.0.1.drv
  /gnu/store/5gibs6x75acc6j0g0rh8m66191l9wq12-python-wrapper-3.10.7.drv
0.1 MB would be downloaded:
  /gnu/store/b2qv97jbih850zn35b2j84n2acj079cv-itsdangerous-2.0.1.tar.gz

$ guix gc --references /gnu/store/5gibs6x75acc6j0g0rh8m66191l9wq12-python-wrapper-3.10.7.drv |grep python
/gnu/store/n0snl506x5bbs5c2496blh79yil3pf44-python2-2.7.18.drv
/gnu/store/whwrah24q7syyiqra16sm9mjvdxld1pv-python-wrapper-3.10.7-builder
--8<---------------cut here---------------end--------------->8---

‘python’ above is an implicit dependency, yet it was suitably replaced
by ‘--with-input’.

In what cases does ‘package-mapping #:deep? #t’ miss implicit inputs?

Thanks,
Ludo’.




^ permalink raw reply	[flat|nested] 23+ messages in thread

* bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs
  2023-09-16  9:45 ` bug#65665: [PATCH] Really " Ulf Herrman
  2023-10-06  2:36   ` Maxim Cournoyer
@ 2023-10-12 14:06   ` Ludovic Courtès
  2023-10-12 16:00     ` Maxim Cournoyer
  2023-10-13  3:11     ` Ulf Herrman
  1 sibling, 2 replies; 23+ messages in thread
From: Ludovic Courtès @ 2023-10-12 14:06 UTC (permalink / raw)
  To: Ulf Herrman; +Cc: 65665

Ulf Herrman <striness@tilde.club> skribis:

> -(define (build-system-with-package-mapping bs rewrite)
> +(define (build-system-with-package-mapping bs rewrite-input rewrite-argument)
>    "Return a variant of BS, a build system, that rewrites a bag's inputs by
>  passing them through REWRITE, a procedure that takes an input tuplet and
>  returns a \"rewritten\" input tuplet."
> @@ -1442,9 +1442,10 @@ (define (build-system-with-package-mapping bs rewrite)
>      (let ((lowered (apply lower args)))
>        (bag
>          (inherit lowered)
> -        (build-inputs (map rewrite (bag-build-inputs lowered)))
> -        (host-inputs (map rewrite (bag-host-inputs lowered)))
> -        (target-inputs (map rewrite (bag-target-inputs lowered))))))
> +        (build-inputs (map rewrite-input (bag-build-inputs lowered)))
> +        (host-inputs (map rewrite-input (bag-host-inputs lowered)))
> +        (target-inputs (map rewrite-input (bag-target-inputs lowered)))
> +        (arguments (map rewrite-argument (bag-arguments lowered))))))

Aah, now I understand.  :-)

It’s indeed the case that arguments can capture references to packages
that won’t be caught by ‘package-mapping’.  For instance, if you write:

  (package
    …
    (arguments (list … #~(whatever #$coreutils))))

… then ‘coreutils’ here cannot be replaced.

To address this, the recommendation is to always add dependencies to
input fields and to use self-references within arguments.  The example
above should be written like this:

  (package
    …
    (arguments
     (list … #~(whatever #$(this-package-input "coreutils")))))

It’s just a recommendation and one can perfectly ignore it, and I
suppose that was the impetus for this patch.

This is one of the things discussed while designing this change:

  https://guix.gnu.org/en/blog/2021/the-big-change/
  (search for “self-referential records”)

  https://issues.guix.gnu.org/49169

My take was and still is that it’s an acceptable limitation.  Packagers
need to follow the guideline above if they want proper support for
rewriting, ‘guix graph’, and other tools.

WDYT?

Thanks,
Ludo’.




^ permalink raw reply	[flat|nested] 23+ messages in thread

* bug#65665: [PATCH] Really get all the implicit inputs.
  2023-10-06  2:36   ` Maxim Cournoyer
  2023-10-06  7:37     ` Ulf Herrman
  2023-10-12  7:07     ` bug#65665: [PATCH] Really " Ludovic Courtès
@ 2023-10-12 14:22     ` Simon Tournier
  2 siblings, 0 replies; 23+ messages in thread
From: Simon Tournier @ 2023-10-12 14:22 UTC (permalink / raw)
  To: Maxim Cournoyer, Ulf Herrman; +Cc: dev, othacehe, ludo, me, 65665, rekado, guix

Hi Maxim,

On Thu, 05 Oct 2023 at 22:36, Maxim Cournoyer <maxim.cournoyer@gmail.com> wrote:

> I've reviewed it, and it makes sense to me.  I'd like to apply it to the
> core-updates branch.  Core team, what say you?

Well, I am not sure to deeply understand some details to get all the
implications here, so I have nothing relevant to say.  For instance,
from my understanding, the core change is:

--8<---------------cut here---------------start------------->8---
+  (define (rewrite-argument arg)
+    (match arg
+      ((? package? p)
+       (replace p))
+      ((? gexp-input? gi)
+       (gexp-input (rewrite-argument (gexp-input-thing gi))
+                   (gexp-input-output gi)
+                   #:native? (gexp-input-native? gi)))
+      ((? gexp? gxp)
+       (make-gexp (map rewrite-argument (gexp-references gxp))
+                  (gexp-self-modules gxp)
+                  (gexp-self-extensions gxp)
+                  (gexp-proc gxp)
+                  (%gexp-location gxp)))
+      ((lst ...)
+       (map rewrite-argument lst))
+      (_
+       arg)))
--8<---------------cut here---------------end--------------->8---

--8<---------------cut here---------------start------------->8---
+                 (arguments
+                  (match p
+                       (($ <package> _ _ _ _ args-proc)
+                        ;; If we let ARGS-PROC be passed its original package,
+                        ;; we somehow end up in an infinite (or maybe just
+                        ;; exponential? Never seen it end...) loop.  Should
+                        ;; probably figure out what's causing that at some
+                        ;; point.
+                        (let ((args (args-proc this-package)))
+                          (if deep?
+                              (map rewrite-argument args)
+                              args)))))
--8<---------------cut here---------------end--------------->8---

and I do not feel enough skilled here for getting the implications.
Equally for this kind of changes:

--8<---------------cut here---------------start------------->8---
-         (arguments (strip-keyword-arguments private-keywords arguments)))))
+         (arguments
+          (substitute-keyword-arguments
+              (strip-keyword-arguments private-keywords arguments)
+            ((#:guile _ #t) guile))))))
--8<---------------cut here---------------end--------------->8---

Therefore, I trust other opinions or I need some time for diving and
filling some gaps.

Cheers,
simon




^ permalink raw reply	[flat|nested] 23+ messages in thread

* bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs
  2023-10-12 13:53 ` Ludovic Courtès
@ 2023-10-12 15:53   ` Maxim Cournoyer
  2023-10-13  1:49     ` Ulf Herrman
  0 siblings, 1 reply; 23+ messages in thread
From: Maxim Cournoyer @ 2023-10-12 15:53 UTC (permalink / raw)
  To: Ludovic Courtès; +Cc: Ulf Herrman, 65665

Hi Ludovic,

Ludovic Courtès <ludo@gnu.org> writes:

> Hi Ulf,
>
> Ulf Herrman <striness@tilde.club> skribis:
>
>> In short, the current approach of having the build-system lower
>> procedure leave the arguments mostly unchanged and letting the
>> bag->derivation procedure (the "bag builder") fill in lots of defaults
>> means that there are implicit inputs that cannot be touched at the
>> package level without adding special logic for every single build system
>> that does something like this.
>
> Could you share an example of what is fixed by these changes?

Ulf had mentioned the problems they were facing in the original post of
this issue:

> The problem with this approach is that it doesn't affect the bag
> arguments.  This means that packages passed in as arguments may still
> end up being used without being transformed.  Worse still, packages
> *not* passed in as arguments may end up being used *unless one is
> explicitly passed in as an argument*, as is the case with
> qt-build-system's #:qtbase argument.

Examples would be an Qt packages, or packages using #:meson
meson-variant.

Any build system accepting package as arguments are subject to this
problem, if I understand correctly.

I hope that helps,

-- 
Thanks,
Maxim




^ permalink raw reply	[flat|nested] 23+ messages in thread

* bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs
  2023-10-12 14:06   ` bug#65665: package-mapping with #:deep? #t doesn't " Ludovic Courtès
@ 2023-10-12 16:00     ` Maxim Cournoyer
  2023-10-14 14:47       ` Ludovic Courtès
  2023-10-13  3:11     ` Ulf Herrman
  1 sibling, 1 reply; 23+ messages in thread
From: Maxim Cournoyer @ 2023-10-12 16:00 UTC (permalink / raw)
  To: Ludovic Courtès; +Cc: Ulf Herrman, 65665

Hi,

Ludovic Courtès <ludo@gnu.org> writes:

> Ulf Herrman <striness@tilde.club> skribis:
>
>> -(define (build-system-with-package-mapping bs rewrite)
>> +(define (build-system-with-package-mapping bs rewrite-input rewrite-argument)
>>    "Return a variant of BS, a build system, that rewrites a bag's inputs by
>>  passing them through REWRITE, a procedure that takes an input tuplet and
>>  returns a \"rewritten\" input tuplet."
>> @@ -1442,9 +1442,10 @@ (define (build-system-with-package-mapping bs rewrite)
>>      (let ((lowered (apply lower args)))
>>        (bag
>>          (inherit lowered)
>> -        (build-inputs (map rewrite (bag-build-inputs lowered)))
>> -        (host-inputs (map rewrite (bag-host-inputs lowered)))
>> -        (target-inputs (map rewrite (bag-target-inputs lowered))))))
>> +        (build-inputs (map rewrite-input (bag-build-inputs lowered)))
>> +        (host-inputs (map rewrite-input (bag-host-inputs lowered)))
>> +        (target-inputs (map rewrite-input (bag-target-inputs lowered)))
>> +        (arguments (map rewrite-argument (bag-arguments lowered))))))
>
> Aah, now I understand.  :-)
>
> It’s indeed the case that arguments can capture references to packages
> that won’t be caught by ‘package-mapping’.  For instance, if you write:
>
>   (package
>     …
>     (arguments (list … #~(whatever #$coreutils))))
>
> … then ‘coreutils’ here cannot be replaced.
>
> To address this, the recommendation is to always add dependencies to
> input fields and to use self-references within arguments.  The example
> above should be written like this:
>
>   (package
>     …
>     (arguments
>      (list … #~(whatever #$(this-package-input "coreutils")))))
>
> It’s just a recommendation and one can perfectly ignore it, and I
> suppose that was the impetus for this patch.
>
> This is one of the things discussed while designing this change:
>
>   https://guix.gnu.org/en/blog/2021/the-big-change/
>   (search for “self-referential records”)
>
>   https://issues.guix.gnu.org/49169
>
> My take was and still is that it’s an acceptable limitation.  Packagers
> need to follow the guideline above if they want proper support for
> rewriting, ‘guix graph’, and other tools.
>
> WDYT?

But not all packages found in a bag come from inputs; they may be
provided as an argument to the build system (cmake, meson, qt, etc. all
allow for this).

-- 
Thanks,
Maxim




^ permalink raw reply	[flat|nested] 23+ messages in thread

* bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs
  2023-10-12 15:53   ` Maxim Cournoyer
@ 2023-10-13  1:49     ` Ulf Herrman
  0 siblings, 0 replies; 23+ messages in thread
From: Ulf Herrman @ 2023-10-13  1:49 UTC (permalink / raw)
  To: Maxim Cournoyer; +Cc: Ludovic Courtès, Ulf Herrman, 65665

[-- Attachment #1: Type: text/plain, Size: 2624 bytes --]

Maxim Cournoyer <maxim.cournoyer@gmail.com> writes:

> Any build system accepting package as arguments are subject to this
> problem, if I understand correctly.

It's not quite everywhere a package is accepted as an argument: there
are many cases where a package is passed as a package argument but
doesn't end up in the arguments list of the corresponding bag.  This is
usually the case because that argument is only overriding a default
package that is just added as an input to the bag, with no special
treatment aside from being an implicit input.  For example, #:cmake in
cmake-build-system works this way.

This is however not the case for #:qtbase in qt-build-system, and, much
more prominently, for #:guile.  Neither qtbase nor guile are added to
bag inputs implicitly, but they do end up in the final builder, even if
not specified.

Concretely, this looks like this:
---------------------------------
(use-modules (guix packages)
             (guix profiles)
             (gnu packages base))

(define guile-named-lyle
  (package
    (inherit (default-guile))
    (name "lyle")))

;; contrived example that only replaces hello's immediate dependencies
(define hello-transformer
  (package-mapping (lambda (p0)
                     (if (eq? p0 (default-guile))
                         guile-named-lyle
                         p0))
                   (lambda (p)
                     (not (eq? p hello)))
                   #:deep? #t))

(define hello-with-lyle
  (hello-transformer hello))

(packages->manifest (list hello hello-with-lyle))

;; $ guix build --derivations --manifest=THISFILE
;; Expectation: build for hello-with-lyle is done with guile-named-lyle.
;; Reality: derivation for hello-with-lyle is the same as hello.
---------------------------------
(and I have confirmed that the above results in guile-named-lyle being
used with the proposed patches applied)

A similar problem manifests when one tries replacing (default-qtbase) in
a package using qt-build-system.  Both it and guile are in bag arguments
and not inputs because it's not enough that they be included as inputs,
the builder must also know which one is considered "used by the build
system" if there are multiple.  One could argue that this ambiguity also
exists with other build systems - "which cmake should be used, which gcc
should be used", etc - but they choose to resolve it with "eh, whatever
shows up first in PATH matching the required name is probably fine".
It's not unimaginable that there could be cases where explicitly
specifying which package should be used for a particular role would be
necessary, though.

- Ulf

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^ permalink raw reply	[flat|nested] 23+ messages in thread

* bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs
  2023-10-12 14:06   ` bug#65665: package-mapping with #:deep? #t doesn't " Ludovic Courtès
  2023-10-12 16:00     ` Maxim Cournoyer
@ 2023-10-13  3:11     ` Ulf Herrman
  2023-10-14 15:18       ` Ludovic Courtès
  1 sibling, 1 reply; 23+ messages in thread
From: Ulf Herrman @ 2023-10-13  3:11 UTC (permalink / raw)
  To: Ludovic Courtès; +Cc: Ulf Herrman, 65665

[-- Attachment #1: Type: text/plain, Size: 4456 bytes --]

Ludovic Courtès <ludo@gnu.org> writes:

> Ulf Herrman <striness@tilde.club> skribis:
>
>> -(define (build-system-with-package-mapping bs rewrite)
>> +(define (build-system-with-package-mapping bs rewrite-input rewrite-argument)
>>    "Return a variant of BS, a build system, that rewrites a bag's inputs by
>>  passing them through REWRITE, a procedure that takes an input tuplet and
>>  returns a \"rewritten\" input tuplet."
>> @@ -1442,9 +1442,10 @@ (define (build-system-with-package-mapping bs rewrite)
>>      (let ((lowered (apply lower args)))
>>        (bag
>>          (inherit lowered)
>> -        (build-inputs (map rewrite (bag-build-inputs lowered)))
>> -        (host-inputs (map rewrite (bag-host-inputs lowered)))
>> -        (target-inputs (map rewrite (bag-target-inputs lowered))))))
>> +        (build-inputs (map rewrite-input (bag-build-inputs lowered)))
>> +        (host-inputs (map rewrite-input (bag-host-inputs lowered)))
>> +        (target-inputs (map rewrite-input (bag-target-inputs lowered)))
>> +        (arguments (map rewrite-argument (bag-arguments lowered))))))
>
> Aah, now I understand.  :-)
>
> It’s indeed the case that arguments can capture references to packages
> that won’t be caught by ‘package-mapping’.  For instance, if you write:
>
>   (package
>     …
>     (arguments (list … #~(whatever #$coreutils))))
>
> … then ‘coreutils’ here cannot be replaced.
>
> To address this, the recommendation is to always add dependencies to
> input fields and to use self-references within arguments.  The example
> above should be written like this:
>
>   (package
>     …
>     (arguments
>      (list … #~(whatever #$(this-package-input "coreutils")))))
>
> It’s just a recommendation and one can perfectly ignore it, and I
> suppose that was the impetus for this patch.

That and a growing thirst for a nuclear option for package rewriting
brought about by trying to debug deep transformations while
simultaneously experimenting with rewriting a manifest of around 270
packages.

There are really several distinct issues at play here:
1. The case of #:qtbase and #:guile being invisible to package-mapping.
   This is what I first noticed, and cannot be fixed without modifying
   the build systems.  This is what prompted looking for packages in
   package and bag arguments, and recursing into lists therein (just in
   case an argument took a list of packages).
2. The (perceived) case of packages hiding inside arguments.  In
   hindsight, this was probably actually (3) causing this, though it's
   hard to tell because I discovered it last.  I attempted to resolve
   this by recursing through <gexp>s and <gexp-input>s.
3. `this-package' referring to the inherited package in thunked fields,
   rather than the package inheriting them.  This is what prompted the
   use of package-{inputs,arguments,etc}-with-package.

(1) could be resolved in several ways.  I'm partial to looking for
arguments whose values are packages and transforming them (when #:deep?
#t is specified), and adjusting the build systems to make that work
consistently, which is what I've done.

(2) is probably not an issue, though it occurs to me that the technique
of recursively searching through arguments looking for packages could be
used to implement a sort of automated "transformability" check, which
could help a lot when trying to debug transformations.

(3) is a major issue; the entire strategy of using `this-package-input'
to enable transformations breaks because of it.  My fix works for me at
least, though it requires exposing additional low-level procedures and
transformation authors using them.  I'll open another bug about it, as
requested.

> This is one of the things discussed while designing this change:
>
>   https://guix.gnu.org/en/blog/2021/the-big-change/
>   (search for “self-referential records”)
>
>   https://issues.guix.gnu.org/49169
>
> My take was and still is that it’s an acceptable limitation.  Packagers
> need to follow the guideline above if they want proper support for
> rewriting, ‘guix graph’, and other tools.
>
> WDYT?

I think it's probably reasonable, though I would like it if there were
tooling in place to detect cases where said guidelines are not
followed, so as to aid in debugging and verifying that a transformation
worked as intended.

- Ulf

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^ permalink raw reply	[flat|nested] 23+ messages in thread

* bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs
  2023-10-12 16:00     ` Maxim Cournoyer
@ 2023-10-14 14:47       ` Ludovic Courtès
  0 siblings, 0 replies; 23+ messages in thread
From: Ludovic Courtès @ 2023-10-14 14:47 UTC (permalink / raw)
  To: Maxim Cournoyer; +Cc: Ulf Herrman, 65665

[-- Attachment #1: Type: text/plain, Size: 3583 bytes --]

Hello,

Maxim Cournoyer <maxim.cournoyer@gmail.com> skribis:

>> It’s indeed the case that arguments can capture references to packages
>> that won’t be caught by ‘package-mapping’.  For instance, if you write:
>>
>>   (package
>>     …
>>     (arguments (list … #~(whatever #$coreutils))))
>>
>> … then ‘coreutils’ here cannot be replaced.
>>
>> To address this, the recommendation is to always add dependencies to
>> input fields and to use self-references within arguments.  The example
>> above should be written like this:
>>
>>   (package
>>     …
>>     (arguments
>>      (list … #~(whatever #$(this-package-input "coreutils")))))
>>
>> It’s just a recommendation and one can perfectly ignore it, and I
>> suppose that was the impetus for this patch.
>>
>> This is one of the things discussed while designing this change:
>>
>>   https://guix.gnu.org/en/blog/2021/the-big-change/
>>   (search for “self-referential records”)
>>
>>   https://issues.guix.gnu.org/49169
>>
>> My take was and still is that it’s an acceptable limitation.  Packagers
>> need to follow the guideline above if they want proper support for
>> rewriting, ‘guix graph’, and other tools.
>>
>> WDYT?
>
> But not all packages found in a bag come from inputs; they may be
> provided as an argument to the build system (cmake, meson, qt, etc. all
> allow for this).

Yes, but these packages (#:cmake for ‘cmake-build-system’, #:python for
‘python-build-system’, etc.) become inputs of the bag, and are taken
into account, as in this example:

--8<---------------cut here---------------start------------->8---
$ ./pre-inst-env guix show tinyxml2
name: tinyxml2
version: 8.0.0
outputs:
+ out: everything
systems: x86_64-linux i686-linux
dependencies: 
location: gnu/packages/xml.scm:1295:2
homepage: http://www.grinninglizard.com/tinyxml2/
license: Zlib
synopsis: Small XML parser for C++  
description: TinyXML2 is a small and simple XML parsing library for the C++ programming
+ language.

$ ./pre-inst-env guix build tinyxml2
The following graft will be made:
   /gnu/store/qf8w8ch1mrxk6k34g2d6bisny5pq8gnv-tinyxml2-8.0.0.drv
applying 2 grafts for tinyxml2-8.0.0 ...
grafting '/gnu/store/ndzyiwhypsbgrbaz7rmz3649b6ghlfal-tinyxml2-8.0.0' -> '/gnu/store/2da5frl36gd51653bjjypqvwdk0bh25v-tinyxml2-8.0.0'...
successfully built /gnu/store/qf8w8ch1mrxk6k34g2d6bisny5pq8gnv-tinyxml2-8.0.0.drv
/gnu/store/2da5frl36gd51653bjjypqvwdk0bh25v-tinyxml2-8.0.0
$ ./pre-inst-env guix build tinyxml2 --with-input=cmake-minimal=cmake
The following derivation will be built:
  /gnu/store/hx0hx1nrmxzdhy9yw1d0md2q78y4spd4-tinyxml2-8.0.0.drv
8.4 MB will be downloaded:
  /gnu/store/qwy25ivr63087x9fdl9km0m44hn5bimg-cmake-3.25.1
  /gnu/store/3vh9b2i93na8wwdrj6n0q2qbgd2fzxik-tinyxml2-8.0.0-checkout

[...]

/gnu/store/cmn551x8iksy44cdqypyq2129lm8ym60-tinyxml2-8.0.0
--8<---------------cut here---------------end--------------->8---

(In this case I had to apply the patch below because ‘cmake-minimal’ was
mistakenly marked as hidden which, as implemented by
eee95b5a879b7096dffd533f24107cf8926b621e, meant that it could not be
replaced.)

I gave a similar example with ‘python-build-system’ here:

  https://issues.guix.gnu.org/65665#10

My understanding is that understanding is that this patch series is
about addressing cases as I explained above, where ‘arguments’ refer to
packages directly instead of using self references.  Do I get this
right, Ulf?

Thanks,
Ludo’.


[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: Type: text/x-patch, Size: 515 bytes --]

diff --git a/gnu/packages/cmake.scm b/gnu/packages/cmake.scm
index bc14286070..1592703f8d 100644
--- a/gnu/packages/cmake.scm
+++ b/gnu/packages/cmake.scm
@@ -263,6 +263,7 @@ (define-public cmake-minimal
   (package
     (inherit cmake-bootstrap)
     (name "cmake-minimal")
+    (properties (alist-delete 'hidden? (package-properties cmake-bootstrap)))
     (source (origin
               (inherit (package-source cmake-bootstrap))
               ;; Purge CMakes bundled dependencies as they are no longer needed.

^ permalink raw reply related	[flat|nested] 23+ messages in thread

* bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs
  2023-10-13  3:11     ` Ulf Herrman
@ 2023-10-14 15:18       ` Ludovic Courtès
  2023-10-15  7:12         ` Ulf Herrman
  0 siblings, 1 reply; 23+ messages in thread
From: Ludovic Courtès @ 2023-10-14 15:18 UTC (permalink / raw)
  To: Ulf Herrman; +Cc: 65665

Hello,

Ulf Herrman <striness@tilde.club> skribis:

> That and a growing thirst for a nuclear option for package rewriting
> brought about by trying to debug deep transformations while
> simultaneously experimenting with rewriting a manifest of around 270
> packages.

On that topic of a catch-all option for rewriting: there’s an unused
procedure called ‘map-derivation’, which performs rewriting at the level
of derivations.  It’s harder to use, more expensive, but who knows,
perhaps we’ll find a motivating use case…  (Allowing for graph rewriting
has been a major goal for me since the beginning.)

> There are really several distinct issues at play here:
> 1. The case of #:qtbase and #:guile being invisible to package-mapping.
>    This is what I first noticed, and cannot be fixed without modifying
>    the build systems.  This is what prompted looking for packages in
>    package and bag arguments, and recursing into lists therein (just in
>    case an argument took a list of packages).

How are #:qtbase and #:guile invisible to package mapping?

They appear in the bag inputs and thus are definitely visible to
‘package-mapping’, as a I showed with the CMake and Python examples in
this thread.

For good measure :-) here’s an example with #:qtbase:

--8<---------------cut here---------------start------------->8---
$ ./pre-inst-env guix build qgit -n
substitute: updating substitutes from 'http://192.168.1.48:8123'... 100.0%
substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
0.4 MB would be downloaded:
  /gnu/store/7b20q17yg90b62404chgbnwgvd6ry1qf-qgit-2.10
$ ./pre-inst-env guix build qgit -n --with-latest=qtbase
following redirection to `https://mirrors.ocf.berkeley.edu/qt/official_releases/qt/'...
following redirection to `https://mirrors.ocf.berkeley.edu/qt/official_releases/qt/6.6/'...
guix build: warning: cannot authenticate source of 'qtbase', version 6.6.0

Starting download of /tmp/guix-file.CTehnY
From https://mirrors.ocf.berkeley.edu/qt/official_releases/qt/6.6/6.6.0/submodules/qtbase-everywhere-src-6.6.0.tar.xz...
 …-src-6.6.0.tar.xz  46.1MiB                                                                                                                        12.9MiB/s 00:04 ▕██████████████████▏ 100.0%
substitute: updating substitutes from 'http://192.168.1.48:8123'... 100.0%
substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
substitute: updating substitutes from 'https://bordeaux.guix.gnu.org'... 100.0%
substitute: updating substitutes from 'https://guix.bordeaux.inria.fr'... 100.0%
The following derivations would be built:
  /gnu/store/paixxkdaakv55bffggxx4l9hiknl8i5r-qgit-2.10.drv
  /gnu/store/f9fdjk1g1s1aqmlmi4clla2kqns7283v-qtbase-6.6.0.drv
0.4 MB would be downloaded:
  /gnu/store/nl9dadzfmjm9wg7v3r31jkx773dl683x-module-import-compiled
  /gnu/store/6zryxmypw0wygayc9pvhyxkx47w0lyci-gperf-3.1
  /gnu/store/a57n7wy8mdi7l52pr4zg07132blgj5xp-qgit-2.10-checkout
--8<---------------cut here---------------end--------------->8---

Now, package transformation options are almost all implemented in terms
of ‘package-input-rewriting/spec’, and I have to admit that it’s much
easier to use than ‘package-mapping’.  The latter is low-level and it
can be a source of headaches.

> 2. The (perceived) case of packages hiding inside arguments.  In
>    hindsight, this was probably actually (3) causing this, though it's
>    hard to tell because I discovered it last.  I attempted to resolve
>    this by recursing through <gexp>s and <gexp-input>s.

Yeah.  I think we have to understand that “hiding” is to some extent
inevitable; <package> is more concise than <bag>, which is more concise
than <derivation>.  There are extra “inputs” showing up when we go from
one abstraction to the one below.

> 3. `this-package' referring to the inherited package in thunked fields,
>    rather than the package inheriting them.  This is what prompted the
>    use of package-{inputs,arguments,etc}-with-package.

Ah yes, I agree; I reported it here:

  https://issues.guix.gnu.org/50335

I think we can discuss it separately though, in that bug report
probably.

> (1) could be resolved in several ways.  I'm partial to looking for
> arguments whose values are packages and transforming them (when #:deep?
> #t is specified), and adjusting the build systems to make that work
> consistently, which is what I've done.
>
> (2) is probably not an issue, though it occurs to me that the technique
> of recursively searching through arguments looking for packages could be
> used to implement a sort of automated "transformability" check, which
> could help a lot when trying to debug transformations.

OK.

> (3) is a major issue; the entire strategy of using `this-package-input'
> to enable transformations breaks because of it.  My fix works for me at
> least, though it requires exposing additional low-level procedures and
> transformation authors using them.  I'll open another bug about it, as
> requested.

Yeah, understood.

Thanks,
Ludo’.




^ permalink raw reply	[flat|nested] 23+ messages in thread

* bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs
  2023-10-14 15:18       ` Ludovic Courtès
@ 2023-10-15  7:12         ` Ulf Herrman
  2023-10-21 14:31           ` Ludovic Courtès
  0 siblings, 1 reply; 23+ messages in thread
From: Ulf Herrman @ 2023-10-15  7:12 UTC (permalink / raw)
  To: Ludovic Courtès; +Cc: Ulf Herrman, 65665

[-- Attachment #1: Type: text/plain, Size: 9887 bytes --]

Ludovic Courtès <ludo@gnu.org> writes:

> Hello,
>
> Ulf Herrman <striness@tilde.club> skribis:
>
>> That and a growing thirst for a nuclear option for package rewriting
>> brought about by trying to debug deep transformations while
>> simultaneously experimenting with rewriting a manifest of around 270
>> packages.
>
> On that topic of a catch-all option for rewriting: there’s an unused
> procedure called ‘map-derivation’, which performs rewriting at the level
> of derivations.  It’s harder to use, more expensive, but who knows,
> perhaps we’ll find a motivating use case…  (Allowing for graph rewriting
> has been a major goal for me since the beginning.)
>
>> There are really several distinct issues at play here:
>> 1. The case of #:qtbase and #:guile being invisible to package-mapping.
>>    This is what I first noticed, and cannot be fixed without modifying
>>    the build systems.  This is what prompted looking for packages in
>>    package and bag arguments, and recursing into lists therein (just in
>>    case an argument took a list of packages).
>
> How are #:qtbase and #:guile invisible to package mapping?
>
> They appear in the bag inputs and thus are definitely visible to
> ‘package-mapping’, as a I showed with the CMake and Python examples in
> this thread.

"Invisible to package-mapping" was perhaps not the clearest phrasing;
"not completely replaced by package-mapping" might be better.  qtbase
does indeed go in the bag inputs, but replacing the bag inputs has no
effect on the bag arguments, and even if we replaced it in the bag
arguments as well, it might not even be in there to begin with, in which
case the bag-builder would introduce a default that is only visible at
the level of derivations.

>
> For good measure :-) here’s an example with #:qtbase:
>
> $ ./pre-inst-env guix build qgit -n
> substitute: updating substitutes from 'http://192.168.1.48:8123'... 100.0%
> substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
> 0.4 MB would be downloaded:
>   /gnu/store/7b20q17yg90b62404chgbnwgvd6ry1qf-qgit-2.10
> $ ./pre-inst-env guix build qgit -n --with-latest=qtbase
> following redirection to `https://mirrors.ocf.berkeley.edu/qt/official_releases/qt/'...
> following redirection to `https://mirrors.ocf.berkeley.edu/qt/official_releases/qt/6.6/'...
> guix build: warning: cannot authenticate source of 'qtbase', version 6.6.0
>
> Starting download of /tmp/guix-file.CTehnY
> From https://mirrors.ocf.berkeley.edu/qt/official_releases/qt/6.6/6.6.0/submodules/qtbase-everywhere-src-6.6.0.tar.xz...
>  …-src-6.6.0.tar.xz  46.1MiB                                                                                                                        12.9MiB/s 00:04 ▕██████████████████▏ 100.0%
> substitute: updating substitutes from 'http://192.168.1.48:8123'... 100.0%
> substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
> substitute: updating substitutes from 'https://bordeaux.guix.gnu.org'... 100.0%
> substitute: updating substitutes from 'https://guix.bordeaux.inria.fr'... 100.0%
> The following derivations would be built:
>   /gnu/store/paixxkdaakv55bffggxx4l9hiknl8i5r-qgit-2.10.drv
>   /gnu/store/f9fdjk1g1s1aqmlmi4clla2kqns7283v-qtbase-6.6.0.drv
> 0.4 MB would be downloaded:
>   /gnu/store/nl9dadzfmjm9wg7v3r31jkx773dl683x-module-import-compiled
>   /gnu/store/6zryxmypw0wygayc9pvhyxkx47w0lyci-gperf-3.1
>   /gnu/store/a57n7wy8mdi7l52pr4zg07132blgj5xp-qgit-2.10-checkout

And if you do a quick 'cat
/gnu/store/paixxkdaakv55bffggxx4l9hiknl8i5r-qgit-2.10.drv'...

------------------------------
Derive
([("out","/gnu/store/z8qrhfmicylxy2mwvcvh9sizfhd3x4d3-qgit-2.10","","")]
 ,[("/gnu/store/0jk33gpzyicyppbnh458213007v0qjhs-mesa-23.1.4.drv",["out"])
   ,("/gnu/store/0njvvgjlb52abhqnmb4rx22sfkxm2h9c-gcc-11.3.0.drv",["out"])
   ,("/gnu/store/0p1sns81qbgr8ayiv02fv4rm5drcycd7-libxdamage-1.1.5.drv",["out"])
   ,("/gnu/store/14a2ban238fng3c8632lrfkmz54y7m2c-binutils-2.38.drv",["out"])
   ,("/gnu/store/1n39zcbr528b7rh9bf1pwfrm7mv8nr8m-bzip2-1.0.8.drv",["out"])
   ,("/gnu/store/2pv3mjjiwh37b0m3m1hijxifnchrw76i-libpciaccess-0.16.drv",["out"])
   ,("/gnu/store/3fy3bf7wysi1n1qz9jz8xzx11sgy8m6d-git-2.41.0.drv",["out"])
   ,("/gnu/store/3r0r8j76l0qvxasmb7rgn7lvpikjdyn1-libxdmcp-1.1.3.drv",["out"])
   ,("/gnu/store/4jfy1ca1d5772z15jcyk1v8wdwdcllbi-gzip-1.12.drv",["out"])
   ,("/gnu/store/5nvwagz2hphvlax2bnj93smr1rgrzr8l-libx11-1.8.1.drv",["out"])
   ,("/gnu/store/64vwaah2spd7q66hji6sm1j2fl6pd1rn-diffutils-3.8.drv",["out"])
   ,("/gnu/store/6k4xxkp725r09vkn7rz2gc50asjjhpkk-xorgproto-2022.2.drv",["out"])
   ,("/gnu/store/91b6yraa6qax7lq7riqg1ag6lql2gfzi-tar-1.34.drv",["out"])
   ,("/gnu/store/9kcv1x0lrf6fdck2j42zarxrvjzxxznv-coreutils-9.1.drv",["out"])
   ,("/gnu/store/9piaq0aaf202r1gq7crig1cr131kx8zn-file-5.44.drv",["out"])
   ,("/gnu/store/9y28bf3ywai2ybhr92c904s3cxsc8apx-libpthread-stubs-0.4.drv",["out"])
   ,("/gnu/store/ak17xsjb4zcw7sf0r0lxxiy4xmh57i2h-findutils-4.9.0.drv",["out"])
   ,("/gnu/store/bmc1hqlb207n1mnf9rs7wy8zh9hhf0br-qgit-2.10-checkout.drv",["out"])
   ,("/gnu/store/cmd13zzya808ca8siibj8ib3llpkrr3f-sed-4.8.drv",["out"])
   ,("/gnu/store/cr84vpnszpy3hkwsm8ijwpnkknxvx8k4-grep-3.8.drv",["out"])
   ,("/gnu/store/cx6ws98i67qf6ba9msz7n63x78ky812c-libxxf86vm-1.1.4.drv",["out"])
   ,("/gnu/store/f9fdjk1g1s1aqmlmi4clla2kqns7283v-qtbase-6.6.0.drv",["out"])
   ,("/gnu/store/fpprrvfiqw6g0mn5gb7ac87nbmrsq64l-make-4.3.drv",["out"])
   ,("/gnu/store/g2z0fvzkh5xl4f00aixchkwxrwbbljlr-libxext-1.3.4.drv",["out"])
   ,("/gnu/store/gb247cil5nlnx175dhqmgg67q7ng7n2h-which-2.21.drv",["out"])
   ,("/gnu/store/hb2y5axynnpwqpx1znjsn5azspc9a4lw-module-import-compiled.drv",["out"])
   ,("/gnu/store/hjhr64r5x3bhdw63zz3a3v09vfrlkhrh-qtbase-5.15.10.drv",["out"])
   ,("/gnu/store/hvqfl21wx397k58jpn5dpn2l5y5k1dl0-patch-2.7.6.drv",["out"])
   ,("/gnu/store/kn7kcpkkcvy6gmrc74mf4mq0290dsf94-glibc-2.35.drv",["out","static"])
   ,("/gnu/store/l3ns54f8vgqmycwi50p5cwbr6l466kj3-libdrm-2.4.114.drv",["out"])
   ,("/gnu/store/lfsv077ggq8w8cbw86wf1075zhb3bhrw-xz-5.2.8.drv",["out"])
   ,("/gnu/store/lssiz5ppxfybwmr638x3bcmn4b6ixk89-linux-libre-headers-5.15.49.drv",["out"])
   ,("/gnu/store/n4p8vzp14k1pkgxyfb5mak12rm1yiwnr-cmake-minimal-3.24.2.drv",["out"])
   ,("/gnu/store/nldpb7xl1slkiigvr9rax7qhcky5flnc-util-macros-1.19.3.drv",["out"])
   ,("/gnu/store/nvaxgm6jvjy6agmp89ivahz7z9vl3ldh-libxcb-1.15.drv",["out"])
   ,("/gnu/store/pdkcmkk5h3zq82ws9fps4bxnfmsmz0kx-libxshmfence-1.3.drv",["out"])
   ,("/gnu/store/s5nyfh0cd3z9wsk69c9blj5y850kvvcm-libvdpau-1.5.drv",["out"])
   ,("/gnu/store/swblndkq2c4rzyv3xfkmsa4cjf6abphf-ld-wrapper-0.drv",["out"])
   ,("/gnu/store/vkns1vij5hjamh7dpd74zs5203526747-libxfixes-6.0.0.drv",["out"])
   ,("/gnu/store/w2mnryfds1bd7wyyqmdi0kblz0dym1bx-glibc-utf8-locales-2.35.drv",["out"])
   ,("/gnu/store/wwmk0rrnb5q8f48fm7h6grzar5qmslgi-libxau-1.0.10.drv",["out"])
   ,("/gnu/store/xwckz4hbfydkfiiaa7bgslbh317gdkiq-bash-minimal-5.1.16.drv",["out"])
   ,("/gnu/store/z7fxw9jj7avcr1ng88pak3ds3kxbfy15-gawk-5.2.1.drv",["out"])
   ,("/gnu/store/zraigp7miin3vzr5dcbr4i9rvds0i07r-guile-3.0.9.drv",["out"])]
 ,["/gnu/store/2lg0ibv3vw01xc83advvrhvmc8yxbhh0-qgit-2.10-builder","/gnu/store/p173g6kxa69qaypf8dvnw1ismd8g4k8q-module-import"]
 ,"x86_64-linux","/gnu/store/g8p09w6r78hhkl2rv1747pcp9zbk6fxv-guile-3.0.9/bin/guile",["--no-auto-compile","-L","/gnu/store/p173g6kxa69qaypf8dvnw1ismd8g4k8q-module-import","-C","/gnu/store/nl9dadzfmjm9wg7v3r31jkx773dl683x-module-import-compiled","/gnu/store/2lg0ibv3vw01xc83advvrhvmc8yxbhh0-qgit-2.10-builder"]
 ,[("out","/gnu/store/z8qrhfmicylxy2mwvcvh9sizfhd3x4d3-qgit-2.10")])
---------------------------

you'll see we have both a
("/gnu/store/f9fdjk1g1s1aqmlmi4clla2kqns7283v-qtbase-6.6.0.drv",["out"])
and a
("/gnu/store/hjhr64r5x3bhdw63zz3a3v09vfrlkhrh-qtbase-5.15.10.drv",["out"])
in use.

(and if this were a transformation that applied to all packages, it
would be using two variants of the entire world beneath qtbase also)

>> 2. The (perceived) case of packages hiding inside arguments.  In
>>    hindsight, this was probably actually (3) causing this, though it's
>>    hard to tell because I discovered it last.  I attempted to resolve
>>    this by recursing through <gexp>s and <gexp-input>s.
>
> Yeah.  I think we have to understand that “hiding” is to some extent
> inevitable; <package> is more concise than <bag>, which is more concise
> than <derivation>.  There are extra “inputs” showing up when we go from
> one abstraction to the one below.

Ideally no new packages would be introduced when going from bags to
derivations - there is also information at the package level that is
missing at the derivation level, like properties and arguments, that
transformations should be able to access.
>
>> 3. `this-package' referring to the inherited package in thunked fields,
>>    rather than the package inheriting them.  This is what prompted the
>>    use of package-{inputs,arguments,etc}-with-package.
>
> Ah yes, I agree; I reported it here:
>
>   https://issues.guix.gnu.org/50335
>
> I think we can discuss it separately though, in that bug report
> probably.
 
Ah, in the meantime I created issue #66510.  I suppose I should merge
that.  I think the syntactic option presented there seems promising -
extending record constructors so that (inherit parent) can be replaced
with (inherit parent (fieldname variable-like-macro-name) ...) to cause
uses of variable-like-macro-name within the constructor to refer to the
parent's value of fieldname, with any field thunk of the parent
evaluated while `this-package' is bound to the package being defined.

- Ulf

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 686 bytes --]

^ permalink raw reply	[flat|nested] 23+ messages in thread

* bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs
  2023-10-15  7:12         ` Ulf Herrman
@ 2023-10-21 14:31           ` Ludovic Courtès
  2023-10-21 22:22             ` Ulf Herrman
  0 siblings, 1 reply; 23+ messages in thread
From: Ludovic Courtès @ 2023-10-21 14:31 UTC (permalink / raw)
  To: Ulf Herrman; +Cc: 65665

Hi,

Ulf Herrman <striness@tilde.club> skribis:

>> $ ./pre-inst-env guix build qgit -n --with-latest=qtbase
>> following redirection to `https://mirrors.ocf.berkeley.edu/qt/official_releases/qt/'...
>> following redirection to `https://mirrors.ocf.berkeley.edu/qt/official_releases/qt/6.6/'...
>> guix build: warning: cannot authenticate source of 'qtbase', version 6.6.0
>>
>> Starting download of /tmp/guix-file.CTehnY
>> From https://mirrors.ocf.berkeley.edu/qt/official_releases/qt/6.6/6.6.0/submodules/qtbase-everywhere-src-6.6.0.tar.xz...
>>  …-src-6.6.0.tar.xz  46.1MiB                                                                                                                        12.9MiB/s 00:04 ▕██████████████████▏ 100.0%
>> substitute: updating substitutes from 'http://192.168.1.48:8123'... 100.0%
>> substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
>> substitute: updating substitutes from 'https://bordeaux.guix.gnu.org'... 100.0%
>> substitute: updating substitutes from 'https://guix.bordeaux.inria.fr'... 100.0%
>> The following derivations would be built:
>>   /gnu/store/paixxkdaakv55bffggxx4l9hiknl8i5r-qgit-2.10.drv
>>   /gnu/store/f9fdjk1g1s1aqmlmi4clla2kqns7283v-qtbase-6.6.0.drv
>> 0.4 MB would be downloaded:
>>   /gnu/store/nl9dadzfmjm9wg7v3r31jkx773dl683x-module-import-compiled
>>   /gnu/store/6zryxmypw0wygayc9pvhyxkx47w0lyci-gperf-3.1
>>   /gnu/store/a57n7wy8mdi7l52pr4zg07132blgj5xp-qgit-2.10-checkout
>
> And if you do a quick 'cat
> /gnu/store/paixxkdaakv55bffggxx4l9hiknl8i5r-qgit-2.10.drv'...

[...]

> you'll see we have both a
> ("/gnu/store/f9fdjk1g1s1aqmlmi4clla2kqns7283v-qtbase-6.6.0.drv",["out"])
> and a
> ("/gnu/store/hjhr64r5x3bhdw63zz3a3v09vfrlkhrh-qtbase-5.15.10.drv",["out"])
> in use.
>
> (and if this were a transformation that applied to all packages, it
> would be using two variants of the entire world beneath qtbase also)

D’oh!  Now we have a bug to chew.  (Sorry if this was obvious to you
from the start; it wasn’t to me!)

I don’t know, should we start by having a proper bug report for this and
study how this happen?

Again I’m sorry if I’m slow to understand, but I’d like to make sure we
have a good understanding of the problem before we start discussing
solutions.

Thanks,
Ludo’.




^ permalink raw reply	[flat|nested] 23+ messages in thread

* bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs
  2023-10-21 14:31           ` Ludovic Courtès
@ 2023-10-21 22:22             ` Ulf Herrman
  2023-10-23 13:53               ` Simon Tournier
  0 siblings, 1 reply; 23+ messages in thread
From: Ulf Herrman @ 2023-10-21 22:22 UTC (permalink / raw)
  To: Ludovic Courtès; +Cc: Ulf Herrman, 65665

[-- Attachment #1: Type: text/plain, Size: 3686 bytes --]

Ludovic Courtès <ludo@gnu.org> writes:

> I don’t know, should we start by having a proper bug report for this and
> study how this happen?

Does that mean opening a new issue, or what?  The bug you've described
is the one this issue was initially opened for.

> Again I’m sorry if I’m slow to understand, but I’d like to make sure we
> have a good understanding of the problem before we start discussing
> solutions.

Okay, I suppose I should have given a concrete example of the behavior.
The qgit example can fill that role:

$ cat $(./pre-inst-env guix build qgit -n --derivations --no-grafts --with-latest=qtbase)
<observe that an untransformed qtbase is present>

The way this happens is that qt-build-system's bag-builder
(e.g. qt-build, qt-cross-build)) introduces a reference to the qtbase
from its #:qtbase argument into the gexp it creates a derivation from,
completely independently of any inputs.  qgit doesn't explicitly specify
#:qtbase, and qt-build-system's 'lower' procedure doesn't add one, so
the default value for that keyword argument, (default-qtbase), is used
in qt-build.

This default value can only be overridden by explicitly passing #:qtbase
as a package or bag argument.  This requirement doesn't map well to a
generic package transformation interface at all - it requires that every
transformer (e.g. package-mapping) check if the package it's
transforming is using qt-build-system, and if so explicitly supply a
#:qtbase that is the result of transforming the original implicit or
explicit value, after somehow figuring out what that may be (currently
only doable by manually reading guix/build-system/qt.scm).

This behavior is also currently exhibited by all build systems' handling
of #:guile.  Here's a concrete example of that, taken from another
mailing I sent to this issue (https://issues.guix.gnu.org/65665#15):

---------------------------------
(use-modules (guix packages)
             (guix profiles)
             (gnu packages base))

(define guile-named-lyle
  (package
    (inherit (default-guile))
    (name "lyle")))

;; contrived example that only replaces hello's immediate dependencies
(define hello-transformer
  (package-mapping (lambda (p0)
                     (if (eq? p0 (default-guile))
                         guile-named-lyle
                         p0))
                   (lambda (p)
                     (not (eq? p hello)))
                   #:deep? #t))

(define hello-with-lyle
  (hello-transformer hello))

(packages->manifest (list hello hello-with-lyle))

;; $ guix build --derivations --manifest=THISFILE
;; Expectation: build for hello-with-lyle is done with guile-named-lyle.
;; Reality: derivation for hello-with-lyle is the same as hello.
---------------------------------

Hopefully that makes it clear why this is happening.

As for solutions, some options that come to mind:

1. guile and qtbase, instead of being passed to bag builders as a
   separate argument, are passed as a bag input that is looked up by
   magic input label, e.g. "guile-for-build", "qtbase-for-build", etc.
   Seems fragile, but requires no changes to package-mapping, etc.

2. Modify the build systems so that these kinds of implicit arguments
   that are packages are always present in bags, and the defaults for
   those keyword arguments in e.g. qt-build are never used.  This is the
   approach I've taken with
   https://issues.guix.gnu.org/issue/65665/attachment/4/0/3.  This still
   requires that bag arguments that are packages are transformed in
   addition to inputs.

I hope that counts as a proper bug report.

- Ulf

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^ permalink raw reply	[flat|nested] 23+ messages in thread

* bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs
  2023-10-21 22:22             ` Ulf Herrman
@ 2023-10-23 13:53               ` Simon Tournier
  0 siblings, 0 replies; 23+ messages in thread
From: Simon Tournier @ 2023-10-23 13:53 UTC (permalink / raw)
  To: Ulf Herrman, Ludovic Courtès; +Cc: Ulf Herrman, 65665

Hi,

On Sat, 21 Oct 2023 at 17:22, Ulf Herrman <striness@tilde.club> wrote:

>> I don’t know, should we start by having a proper bug report for this and
>> study how this happen?

[...]

>> Again I’m sorry if I’m slow to understand, but I’d like to make sure we
>> have a good understanding of the problem before we start discussing
>> solutions.
>
> Okay, I suppose I should have given a concrete example of the behavior.
> The qgit example can fill that role:
>
> $ cat $(./pre-inst-env guix build qgit -n --derivations --no-grafts --with-latest=qtbase)

If I might, Guix revision a25a492f2b, my understanding is,

    $ ./pre-inst-env guix build qgit -n --with-latest=qtbase
    /gnu/store/gx5d03as0k1w6jv0pssi6j69n8glf6w5-qgit-2.10.drv
    /gnu/store/h02aizdjy4p10n4gmcy0y35x14lmjx3n-qtbase-6.6.0.drv

Then the builder of the derivation
/gnu/store/gx5d03as0k1w6jv0pssi6j69n8glf6w5-qgit-2.10.drv reads,

--8<---------------cut here---------------start------------->8---
(begin
  (use-modules
   (guix build qt-build-system)
   (guix build utils))
  (qt-build #:source "/gnu/store/a57n7wy8mdi7l52pr4zg07132blgj5xp-qgit-2.10-checkout" #:system "x86_64-linux" #:outputs
            (list
             (cons "out"
                   ((@
                     (guile)
                     getenv)
                    "out")))
            #:inputs
            (quote
             (("source" . "/gnu/store/a57n7wy8mdi7l52pr4zg07132blgj5xp-qgit-2.10-checkout")
              ("cmake" . "/gnu/store/ygab8v4ci9iklaykapq52bfsshpvi8pw-cmake-minimal-3.24.2")
              ("qtbase" . "/gnu/store/khlz8afih21pd0szn5x1ck6bp6w320cz-qtbase-6.6.0")
[...]
            #:qtbase "/gnu/store/h8z3xhpb8m1ih2k45935kqx0wya5w7vq-qtbase-5.15.10"
--8<---------------cut here---------------end--------------->8---

Therefore, the transformation does not rewrite #:qtbase.  And note that
qtbase-5.15.10 is not listed as #:inputs.

Without the transformations, it reads,

--8<---------------cut here---------------start------------->8---
(begin
  (use-modules
   (guix build qt-build-system)
   (guix build utils))
  (qt-build #:source "/gnu/store/a57n7wy8mdi7l52pr4zg07132blgj5xp-qgit-2.10-checkout" #:system "x86_64-linux" #:outputs
            (list
             (cons "out"
                   ((@
                     (guile)
                     getenv)
                    "out")))
            #:inputs
            (quote
             (("source" . "/gnu/store/a57n7wy8mdi7l52pr4zg07132blgj5xp-qgit-2.10-checkout")
              ("cmake" . "/gnu/store/ygab8v4ci9iklaykapq52bfsshpvi8pw-cmake-minimal-3.24.2")
              ("qtbase" . "/gnu/store/h8z3xhpb8m1ih2k45935kqx0wya5w7vq-qtbase-5.15.10")
[...]
            #:qtbase "/gnu/store/h8z3xhpb8m1ih2k45935kqx0wya5w7vq-qtbase-5.15.10"
--8<---------------cut here---------------end--------------->8---

Cheers,
simon




^ permalink raw reply	[flat|nested] 23+ messages in thread

end of thread, other threads:[~2023-10-23 17:31 UTC | newest]

Thread overview: 23+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-08-31 20:14 bug#65665: package-mapping with #:deep? #t doesn't get all the implicit inputs Ulf Herrman
2023-09-01 18:08 ` Csepp
2023-09-03 13:02 ` Maxim Cournoyer
2023-09-05 14:57 ` Simon Tournier
2023-09-16  9:45 ` bug#65665: [PATCH] Really " Ulf Herrman
2023-10-06  2:36   ` Maxim Cournoyer
2023-10-06  7:37     ` Ulf Herrman
2023-10-07  3:47       ` Ulf Herrman
2023-10-12 13:47       ` bug#65665: package-mapping with #:deep? #t doesn't " Ludovic Courtès
2023-10-12  7:07     ` bug#65665: [PATCH] Really " Ludovic Courtès
2023-10-12 14:22     ` Simon Tournier
2023-10-12 14:06   ` bug#65665: package-mapping with #:deep? #t doesn't " Ludovic Courtès
2023-10-12 16:00     ` Maxim Cournoyer
2023-10-14 14:47       ` Ludovic Courtès
2023-10-13  3:11     ` Ulf Herrman
2023-10-14 15:18       ` Ludovic Courtès
2023-10-15  7:12         ` Ulf Herrman
2023-10-21 14:31           ` Ludovic Courtès
2023-10-21 22:22             ` Ulf Herrman
2023-10-23 13:53               ` Simon Tournier
2023-10-12 13:53 ` Ludovic Courtès
2023-10-12 15:53   ` Maxim Cournoyer
2023-10-13  1:49     ` Ulf Herrman

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