* [bug#32115] [PATCH 0/2] Add (guix inferior) and improve 'guix pull -l'
@ 2018-07-10 16:45 Ludovic Courtès
2018-07-10 16:48 ` [bug#32115] [PATCH 1/2] Add (guix inferior) and (guix scripts repl) Ludovic Courtès
2018-07-13 15:59 ` bug#32115: [PATCH 0/2] Add (guix inferior) and improve 'guix pull -l' Ludovic Courtès
0 siblings, 2 replies; 9+ messages in thread
From: Ludovic Courtès @ 2018-07-10 16:45 UTC (permalink / raw)
To: 32115
Hello Guix!
This patch adds (guix inferior), a module to interact with an inferior Guix
process, along with a ‘guix repl’ command, which spawns a REPL optionally a
simple sexp-based protocol.
‘guix pull -l’ uses (guix inferior) to display this:
--8<---------------cut here---------------start------------->8---
Generation 1 Jun 10 2018 00:18:18
guix 65956ad
repository URL: https://git.savannah.gnu.org/git/guix.git
branch: origin/master
commit: 65956ad3526ba09e1f7a40722c96c6ef7c0936fe
Generation 2 Jun 11 2018 11:02:49
guix e0cc7f6
repository URL: https://git.savannah.gnu.org/git/guix.git
branch: origin/master
commit: e0cc7f669bec22c37481dd03a7941c7d11a64f1d
2 new packages: keepalived, libnfnetlink
6 packages upgraded: emacs-nix-mode@2.0.4, guile2.0-guix@0.14.0-12.77a1aac,
guix@0.14.0-12.77a1aac, heimdal@7.5.0, milkytracker@1.02.00, nix@2.0.4
Generation 3 Jun 13 2018 23:31:07
guix 844cc1c
repository URL: https://git.savannah.gnu.org/git/guix.git
branch: origin/master
commit: 844cc1c8f394f03b404c5bb3aee086922373490c
28 new packages: emacs-helm-ls-git, emacs-helm-mu, emacs-helm-pass, emacs-image+,
emacs-package-lint, emacs-puppet-mode, emacs-wgrep-helm, go-github-com-gorilla-mux,
go-github-com-jonboulle-clockwork, go-github-com-spf13-pflag, libostree, ovmf-aarch64, ovmf-arm, qtwebglplugin,
qtwebview, r-ellipse, r-factoextra, r-factominer, r-flashclust, r-ggpubr, r-ggsci, r-ggsignif, r-hdf5r,
r-nbclust, r-writexl, skopeo, umoci, vkd3d
69 packages upgraded: borg@1.1.6, cheese@3.28.0, cpupower@4.17.1, efivar@36, emacs-orgalist@1.8,
emacspeak@48.0, font-gnu-unifont@11.0.01, freefall@4.17.1, glslang@3.0-3.32d3ec319, guile-bytestructures@1.0.3,
guile2.0-bytestructures@1.0.3, iproute2@4.17.0, ldb@1.4.0, libfilezilla@0.12.3, libndp@1.7, libraw@0.18.12,
[...]
--8<---------------cut here---------------end--------------->8---
It takes about one second per generation on my SSD-powered laptop, though, so
we might want to have a persistent cache of each generation’s package list.
Eventually I think we can use (guix inferior) for other purposes. For example,
hpcguix-web should use it to regularly grab the latest package list. And, we
could add a gexp compiler for <inferior-package> such that one can seamlessly
refer to packages coming from a different Guix version. Then, if we wanted to,
we could have ‘guix package’ & co. allow you to specify packages coming from
a different Guix. Could be fun!
Thoughts? Comments?
Ludo’.
Ludovic Courtès (2):
Add (guix inferior) and (guix scripts repl).
pull: Use (guix inferior) to display new and upgraded packages.
Makefile.am | 3 +
doc/guix.texi | 59 +++++++++++++
guix/inferior.scm | 197 +++++++++++++++++++++++++++++++++++++++++
guix/scripts/pull.scm | 91 ++++++++++++++++---
guix/scripts/repl.scm | 199 ++++++++++++++++++++++++++++++++++++++++++
tests/inferior.scm | 69 +++++++++++++++
6 files changed, 607 insertions(+), 11 deletions(-)
create mode 100644 guix/inferior.scm
create mode 100644 guix/scripts/repl.scm
create mode 100644 tests/inferior.scm
--
2.18.0
^ permalink raw reply [flat|nested] 9+ messages in thread
* [bug#32115] [PATCH 1/2] Add (guix inferior) and (guix scripts repl).
2018-07-10 16:45 [bug#32115] [PATCH 0/2] Add (guix inferior) and improve 'guix pull -l' Ludovic Courtès
@ 2018-07-10 16:48 ` Ludovic Courtès
2018-07-10 16:48 ` [bug#32115] [PATCH 1/2] Add (guix inferior) Ludovic Courtès
` (5 more replies)
2018-07-13 15:59 ` bug#32115: [PATCH 0/2] Add (guix inferior) and improve 'guix pull -l' Ludovic Courtès
1 sibling, 6 replies; 9+ messages in thread
From: Ludovic Courtès @ 2018-07-10 16:48 UTC (permalink / raw)
To: 32115
* guix/inferior.scm, guix/scripts/repl.scm, tests/inferior.scm: New
files.
* Makefile.am (MODULES): Add 'guix/scripts/repl.scm' and
'guix/inferior.scm'.
(SCM_TESTS): Add 'tests/inferior.scm'.
* doc/guix.texi (Invoking guix repl): New node.
---
Makefile.am | 3 +
doc/guix.texi | 53 +++++++++++
guix/inferior.scm | 197 +++++++++++++++++++++++++++++++++++++++++
guix/scripts/repl.scm | 199 ++++++++++++++++++++++++++++++++++++++++++
tests/inferior.scm | 69 +++++++++++++++
5 files changed, 521 insertions(+)
create mode 100644 guix/inferior.scm
create mode 100644 guix/scripts/repl.scm
create mode 100644 tests/inferior.scm
diff --git a/Makefile.am b/Makefile.am
index 5dc04de35..8d05744bc 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -85,6 +85,7 @@ MODULES = \
guix/nar.scm \
guix/derivations.scm \
guix/grafts.scm \
+ guix/inferior.scm \
guix/gnu-maintenance.scm \
guix/self.scm \
guix/upstream.scm \
@@ -200,6 +201,7 @@ MODULES = \
guix/scripts/substitute.scm \
guix/scripts/authenticate.scm \
guix/scripts/refresh.scm \
+ guix/scripts/repl.scm \
guix/scripts/system.scm \
guix/scripts/system/search.scm \
guix/scripts/lint.scm \
@@ -355,6 +357,7 @@ SCM_TESTS = \
tests/profiles.scm \
tests/search-paths.scm \
tests/syscalls.scm \
+ tests/inferior.scm \
tests/gremlin.scm \
tests/bournish.scm \
tests/lint.scm \
diff --git a/doc/guix.texi b/doc/guix.texi
index 7ce364b0a..e93b320e8 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -166,6 +166,7 @@ Programming Interface
* Derivations:: Low-level interface to package derivations.
* The Store Monad:: Purely functional interface to the store.
* G-Expressions:: Manipulating build expressions.
+* Invoking guix repl:: Fiddling with Guix interactively.
Defining Packages
@@ -3267,6 +3268,7 @@ package definitions.
* Derivations:: Low-level interface to package derivations.
* The Store Monad:: Purely functional interface to the store.
* G-Expressions:: Manipulating build expressions.
+* Invoking guix repl:: Fiddling with Guix interactively.
@end menu
@node Defining Packages
@@ -5538,6 +5540,57 @@ corresponding to @var{obj} for @var{system}, cross-compiling for
has an associated gexp compiler, such as a @code{<package>}.
@end deffn
+@node Invoking guix repl
+@section Invoking @command{guix repl}
+
+@cindex REPL, read-eval-print loop
+The @command{guix repl} command spawns a Guile @dfn{read-eval-print loop}
+(REPL) for interactive programming (@pxref{Using Guile Interactively,,, guile,
+GNU Guile Reference Manual}). Compared to just launching the @command{guile}
+command, @command{guix repl} guarantees that all the Guix modules and all its
+dependencies are available in the search path. You can use it this way:
+
+@example
+$ guix repl
+scheme@@(guile-user)> ,use (gnu packages base)
+scheme@@(guile-user)> coreutils
+$1 = #<package coreutils@@8.29 gnu/packages/base.scm:327 3e28300>
+@end example
+
+@cindex inferiors
+In addition, @command{guix repl} implements a simple machine-readable REPL
+protocol for use by @code{(guix inferior)}, a facility to interact with
+@dfn{inferiors}, separate processes running a potentially different revision
+of Guix.
+
+The available options are as follows:
+
+@table @code
+@item --type=@var{type}
+@itemx -t @var{type}
+Start a REPL of the given @var{TYPE}, which can be one of the following:
+
+@table @code
+@item guile
+This is default, and it spawns a standard full-featured Guile REPL.
+@item machine
+Spawn a REPL that uses the machine-readable protocol. This is the protocol
+that the @code{(guix inferior)} module speaks.
+@end table
+
+@item --listen=@var{endpoint}
+By default, @command{guix repl} reads from standard input and writes to
+standard output. When this option is passed, it will instead listen for
+connections on @var{endpoint}. Here are examples of valid options:
+
+@table @code
+@item --listen=tcp:37146
+Accept connections on localhost on port 37146.
+
+@item --listen=unix:/tmp/socket
+Accept connections on the Unix-domain socket @file{/tmp/socket}.
+@end table
+@end table
@c *********************************************************************
@node Utilities
diff --git a/guix/inferior.scm b/guix/inferior.scm
new file mode 100644
index 000000000..629c2c431
--- /dev/null
+++ b/guix/inferior.scm
@@ -0,0 +1,197 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2018 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (guix inferior)
+ #:use-module (srfi srfi-9)
+ #:use-module (srfi srfi-9 gnu)
+ #:use-module (ice-9 match)
+ #:use-module (ice-9 popen)
+ #:export (inferior?
+ open-inferior
+ close-inferior
+ inferior-eval
+ inferior-object?
+
+ inferior-package?
+ inferior-package-name
+ inferior-package-version
+
+ inferior-packages
+ inferior-package-synopsis
+ inferior-package-description))
+
+;;; Commentary:
+;;;
+;;; This module provides a way to spawn Guix "inferior" processes and to talk
+;;; to them. It allows us, from one instance of Guix, to interact with
+;;; another instance of Guix coming from a different commit.
+;;;
+;;; Code:
+
+;; Inferior Guix process.
+(define-record-type <inferior>
+ (inferior pid socket version)
+ inferior?
+ (pid inferior-pid)
+ (socket inferior-socket)
+ (version inferior-version)) ;REPL protocol version
+
+(define (inferior-pipe directory command)
+ "Return an input/output pipe on the Guix instance in DIRECTORY. This runs
+'DIRECTORY/COMMAND repl' if it exists, or falls back to some other method if
+it's an old Guix."
+ (let ((pipe (with-error-to-port (%make-void-port "w")
+ (lambda ()
+ (open-pipe* OPEN_BOTH
+ (string-append directory "/" command)
+ "repl" "-t" "machine")))))
+ (if (eof-object? (peek-char pipe))
+ (begin
+ (close-pipe pipe)
+
+ ;; Older versions of Guix didn't have a 'guix repl' command, so
+ ;; emulate it.
+ (open-pipe* OPEN_BOTH "guile"
+ "-L" (string-append directory "/share/guile/site/"
+ (effective-version))
+ "-C" (string-append directory "/share/guile/site/"
+ (effective-version))
+ "-C" (string-append directory "/lib/guile/"
+ (effective-version) "/site-ccache")
+ "-c"
+ (object->string
+ `(begin
+ (primitive-load ,(search-path %load-path
+ "guix/scripts/repl.scm"))
+ ((@ (guix scripts repl) machine-repl))))))
+ pipe)))
+
+(define* (open-inferior directory #:key (command "bin/guix"))
+ "Open the inferior Guix in DIRECTORY, running 'DIRECTORY/COMMAND repl' or
+equivalent. Return #f if the inferior could not be launched."
+ (define pipe
+ (inferior-pipe directory command))
+
+ (setvbuf pipe _IOLBF)
+ (match (read pipe)
+ (('repl-version 0 rest ...)
+ (let ((result (inferior 'pipe pipe (cons 0 rest))))
+ (inferior-eval '(use-modules (guix)) result)
+ (inferior-eval '(use-modules (gnu)) result)
+ (inferior-eval '(define %package-table (make-hash-table))
+ result)
+ result))
+ (_
+ #f)))
+
+(define (close-inferior inferior)
+ "Close INFERIOR."
+ (close-pipe (inferior-socket inferior)))
+
+;; Non-self-quoting object of the inferior.
+(define-record-type <inferior-object>
+ (inferior-object address appearance)
+ inferior-object?
+ (address inferior-object-address)
+ (appearance inferior-object-appearance))
+
+(define (write-inferior-object object port)
+ (match object
+ (($ <inferior-object> _ appearance)
+ (format port "#<inferior-object ~a>" appearance))))
+
+(set-record-type-printer! <inferior-object> write-inferior-object)
+
+(define (inferior-eval exp inferior)
+ "Evaluate EXP in INFERIOR."
+ (define sexp->object
+ (match-lambda
+ (('value value)
+ value)
+ (('non-self-quoting address string)
+ (inferior-object address string))))
+
+ (write exp (inferior-socket inferior))
+ (newline (inferior-socket inferior))
+ (match (read (inferior-socket inferior))
+ (('values objects ...)
+ (apply values (map sexp->object objects)))
+ (('exception key objects ...)
+ (apply throw key (map sexp->object objects)))))
+
+\f
+;;;
+;;; Inferior packages.
+;;;
+
+(define-record-type <inferior-package>
+ (inferior-package inferior name version id)
+ inferior-package?
+ (inferior inferior-package-inferior)
+ (name inferior-package-name)
+ (version inferior-package-version)
+ (id inferior-package-id))
+
+(define (write-inferior-package package port)
+ (match package
+ (($ <inferior-package> _ name version)
+ (format port "#<inferior-package ~a@~a ~a>"
+ name version
+ (number->string (object-address package) 16)))))
+
+(set-record-type-printer! <inferior-package> write-inferior-package)
+
+(define (inferior-packages inferior)
+ "Return the list of packages known to INFERIOR."
+ (let ((result (inferior-eval
+ '(fold-packages (lambda (package result)
+ (let ((id (object-address package)))
+ (hashv-set! %package-table id package)
+ (cons (list (package-name package)
+ (package-version package)
+ id)
+ result)))
+ '())
+ inferior)))
+ (map (match-lambda
+ ((name version id)
+ (inferior-package inferior name version id)))
+ result)))
+
+(define (inferior-package-field package getter)
+ "Return the field of PACKAGE, an inferior package, accessed with GETTER."
+ (let ((inferior (inferior-package-inferior package))
+ (id (inferior-package-id package)))
+ (inferior-eval `(,getter (hashv-ref %package-table ,id))
+ inferior)))
+
+(define* (inferior-package-synopsis package #:key (translate? #t))
+ "Return the Texinfo synopsis of PACKAGE, an inferior package. When
+TRANSLATE? is true, translate it to the current locale's language."
+ (inferior-package-field package
+ (if translate?
+ '(compose (@ (guix ui) P_) package-synopsis)
+ 'package-synopsis)))
+
+(define* (inferior-package-description package #:key (translate? #t))
+ "Return the Texinfo description of PACKAGE, an inferior package. When
+TRANSLATE? is true, translate it to the current locale's language."
+ (inferior-package-field package
+ (if translate?
+ '(compose (@ (guix ui) P_) package-description)
+ 'package-description)))
diff --git a/guix/scripts/repl.scm b/guix/scripts/repl.scm
new file mode 100644
index 000000000..b157833a4
--- /dev/null
+++ b/guix/scripts/repl.scm
@@ -0,0 +1,199 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2018 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (guix scripts repl)
+ #:use-module (guix ui)
+ #:use-module (guix scripts)
+ #:use-module (guix utils)
+ #:use-module (guix packages)
+ #:use-module (gnu packages)
+ #:use-module (srfi srfi-1)
+ #:use-module (srfi srfi-37)
+ #:use-module (ice-9 match)
+ #:use-module (rnrs bytevectors)
+ #:autoload (system repl repl) (start-repl)
+ #:autoload (system repl server)
+ (make-tcp-server-socket make-unix-domain-server-socket)
+ #:export (machine-repl
+ guix-repl))
+
+;;; Commentary:
+;;;
+;;; This command provides a Guile REPL
+
+(define %default-options
+ `((type . guile)))
+
+(define %options
+ (list (option '(#\h "help") #f #f
+ (lambda args
+ (show-help)
+ (exit 0)))
+ (option '(#\V "version") #f #f
+ (lambda args
+ (show-version-and-exit "guix repl")))
+ (option '(#\t "type") #t #f
+ (lambda (opt name arg result)
+ (alist-cons 'type (string->symbol arg) result)))
+ (option '("listen") #t #f
+ (lambda (opt name arg result)
+ (alist-cons 'listen arg result)))))
+
+
+(define (show-help)
+ (display (G_ "Usage: guix repl [OPTIONS...]
+Start a Guile REPL in the Guix execution environment.\n"))
+ (display (G_ "
+ -t, --type=TYPE start a REPL of the given TYPE"))
+ (newline)
+ (display (G_ "
+ -h, --help display this help and exit"))
+ (display (G_ "
+ -V, --version display version information and exit"))
+ (newline)
+ (show-bug-report-information))
+
+(define (self-quoting? x)
+ "Return #t if X is self-quoting."
+ (letrec-syntax ((one-of (syntax-rules ()
+ ((_) #f)
+ ((_ pred rest ...)
+ (or (pred x)
+ (one-of rest ...))))))
+ (one-of symbol? string? pair? null? vector?
+ bytevector? number? boolean?)))
+
+(define user-module
+ ;; Module where we execute user code.
+ (let ((module (resolve-module '(guix-user) #f #f #:ensure #t)))
+ (beautify-user-module! module)
+ module))
+
+(define* (machine-repl #:optional
+ (input (current-input-port))
+ (output (current-output-port)))
+ "Run a machine-usable REPL over ports INPUT and OUTPUT.
+
+The protocol of this REPL is meant to be machine-readable and provides proper
+support to represent multiple-value returns, exceptions, objects that lack a
+read syntax, and so on. As such it is more convenient and robust than parsing
+Guile's REPL prompt."
+ (define (value->sexp value)
+ (if (self-quoting? value)
+ `(value ,value)
+ `(non-self-quoting ,(object-address value)
+ ,(object->string value))))
+
+ (write `(repl-version 0 0) output)
+ (newline output)
+ (force-output output)
+
+ (let loop ()
+ (match (read input)
+ ((? eof-object?) #t)
+ (exp
+ (catch #t
+ (lambda ()
+ (let ((results (call-with-values
+ (lambda ()
+
+ (primitive-eval exp))
+ list)))
+ (write `(values ,@(map value->sexp results))
+ output)
+ (newline output)
+ (force-output output)))
+ (lambda (key . args)
+ (write `(exception ,key ,@(map value->sexp args)))
+ (newline output)
+ (force-output output)))
+ (loop)))))
+
+(define (call-with-connection spec thunk)
+ "Dynamically-bind the current input and output ports according to SPEC and
+call THUNK."
+ (if (not spec)
+ (thunk)
+
+ ;; Note: the "PROTO:" prefix in SPEC is here so that we can eventually
+ ;; parse things like "fd:123" in a non-ambiguous way.
+ (match (string-index spec #\:)
+ (#f
+ (leave (G_ "~A: invalid listen specification~%") spec))
+ (index
+ (let ((protocol (string-take spec index))
+ (address (string-drop spec (+ index 1))))
+ (define socket
+ (match protocol
+ ("tcp"
+ (make-tcp-server-socket #:port (string->number address)))
+ ("unix"
+ (make-unix-domain-server-socket #:path address))
+ (_
+ (leave (G_ "~A: unsupported protocol family~%")
+ protocol))))
+
+ (listen socket 10)
+ (let loop ()
+ (match (accept socket)
+ ((connection . address)
+ (if (= AF_UNIX (sockaddr:fam address))
+ (info (G_ "accepted connection~%"))
+ (info (G_ "accepted connection from ~a~%")
+ (inet-ntop (sockaddr:fam address)
+ (sockaddr:addr address))))
+ (dynamic-wind
+ (const #t)
+ (lambda ()
+ (parameterize ((current-input-port connection)
+ (current-output-port connection))
+ (thunk)))
+ (lambda ()
+ (false-if-exception (close-port connection))
+ (info (G_ "connection closed~%"))))))
+ (loop)))))))
+
+\f
+(define (guix-repl . args)
+ (define opts
+ ;; Return the list of package names.
+ (args-fold* args %options
+ (lambda (opt name arg result)
+ (leave (G_ "~A: unrecognized option~%") name))
+ (lambda (arg result)
+ (leave (G_ "~A: extraneous argument~%") arg))
+ %default-options))
+
+ (with-error-handling
+ (let ((type (assoc-ref opts 'type)))
+ (call-with-connection (assoc-ref opts 'listen)
+ (lambda ()
+ (case type
+ ((guile)
+ (save-module-excursion
+ (lambda ()
+ (set-current-module user-module)
+ (start-repl))))
+ ((machine)
+ (machine-repl))
+ (else
+ (leave (G_ "~a: unknown type of REPL~%") type))))))))
+
+;; Local Variables:
+;; eval: (put 'call-with-connection 'scheme-indent-function 1)
+;; End:
diff --git a/tests/inferior.scm b/tests/inferior.scm
new file mode 100644
index 000000000..5e0f8ae66
--- /dev/null
+++ b/tests/inferior.scm
@@ -0,0 +1,69 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2018 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (test-inferior)
+ #:use-module (guix inferior)
+ #:use-module (guix packages)
+ #:use-module (gnu packages)
+ #:use-module (srfi srfi-1)
+ #:use-module (srfi srfi-64))
+
+(define %top-srcdir
+ (dirname (search-path %load-path "guix.scm")))
+
+(define %top-builddir
+ (dirname (search-path %load-compiled-path "guix.go")))
+
+\f
+(test-begin "inferior")
+
+(test-equal "open-inferior"
+ '(42 #t)
+ (let ((inferior (open-inferior %top-builddir
+ #:command "scripts/guix")))
+ (and (inferior? inferior)
+ (let ((a (inferior-eval '(apply * '(6 7)) inferior))
+ (b (inferior-eval '(@ (gnu packages base) coreutils)
+ inferior)))
+ (close-inferior inferior)
+ (list a (inferior-object? b))))))
+
+(test-equal "inferior-packages"
+ (take (sort (fold-packages (lambda (package lst)
+ (alist-cons (package-name package)
+ (package-version package)
+ lst))
+ '())
+ (lambda (x y)
+ (string<? (car x) (car y))))
+ 10)
+ (let* ((inferior (open-inferior %top-builddir
+ #:command "scripts/guix"))
+ (packages (inferior-packages inferior)))
+ (and (every string? (map inferior-package-synopsis packages))
+ (begin
+ (close-inferior inferior)
+ (take (sort (map (lambda (package)
+ (cons (inferior-package-name package)
+ (inferior-package-version package)))
+ packages)
+ (lambda (x y)
+ (string<? (car x) (car y))))
+ 10)))))
+
+(test-end "inferior")
--
2.18.0
^ permalink raw reply related [flat|nested] 9+ messages in thread
* [bug#32115] [PATCH 1/2] Add (guix inferior).
2018-07-10 16:48 ` [bug#32115] [PATCH 1/2] Add (guix inferior) and (guix scripts repl) Ludovic Courtès
@ 2018-07-10 16:48 ` Ludovic Courtès
2018-07-10 16:48 ` [bug#32115] [PATCH 1/3] profiles: Factorize 'manifest-search-paths' Ludovic Courtès
` (4 subsequent siblings)
5 siblings, 0 replies; 9+ messages in thread
From: Ludovic Courtès @ 2018-07-10 16:48 UTC (permalink / raw)
To: 32115
* guix/inferior.scm, tests/inferior.scm: New files.
---
Makefile.am | 2 +
guix/inferior.scm | 197 +++++++++++++++++++++++++++++++++++++++++++++
tests/inferior.scm | 69 ++++++++++++++++
3 files changed, 268 insertions(+)
create mode 100644 guix/inferior.scm
create mode 100644 tests/inferior.scm
diff --git a/Makefile.am b/Makefile.am
index 5dc04de35..25b1d501f 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -85,6 +85,7 @@ MODULES = \
guix/nar.scm \
guix/derivations.scm \
guix/grafts.scm \
+ guix/inferior.scm \
guix/gnu-maintenance.scm \
guix/self.scm \
guix/upstream.scm \
@@ -355,6 +356,7 @@ SCM_TESTS = \
tests/profiles.scm \
tests/search-paths.scm \
tests/syscalls.scm \
+ tests/inferior.scm \
tests/gremlin.scm \
tests/bournish.scm \
tests/lint.scm \
diff --git a/guix/inferior.scm b/guix/inferior.scm
new file mode 100644
index 000000000..629c2c431
--- /dev/null
+++ b/guix/inferior.scm
@@ -0,0 +1,197 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2018 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (guix inferior)
+ #:use-module (srfi srfi-9)
+ #:use-module (srfi srfi-9 gnu)
+ #:use-module (ice-9 match)
+ #:use-module (ice-9 popen)
+ #:export (inferior?
+ open-inferior
+ close-inferior
+ inferior-eval
+ inferior-object?
+
+ inferior-package?
+ inferior-package-name
+ inferior-package-version
+
+ inferior-packages
+ inferior-package-synopsis
+ inferior-package-description))
+
+;;; Commentary:
+;;;
+;;; This module provides a way to spawn Guix "inferior" processes and to talk
+;;; to them. It allows us, from one instance of Guix, to interact with
+;;; another instance of Guix coming from a different commit.
+;;;
+;;; Code:
+
+;; Inferior Guix process.
+(define-record-type <inferior>
+ (inferior pid socket version)
+ inferior?
+ (pid inferior-pid)
+ (socket inferior-socket)
+ (version inferior-version)) ;REPL protocol version
+
+(define (inferior-pipe directory command)
+ "Return an input/output pipe on the Guix instance in DIRECTORY. This runs
+'DIRECTORY/COMMAND repl' if it exists, or falls back to some other method if
+it's an old Guix."
+ (let ((pipe (with-error-to-port (%make-void-port "w")
+ (lambda ()
+ (open-pipe* OPEN_BOTH
+ (string-append directory "/" command)
+ "repl" "-t" "machine")))))
+ (if (eof-object? (peek-char pipe))
+ (begin
+ (close-pipe pipe)
+
+ ;; Older versions of Guix didn't have a 'guix repl' command, so
+ ;; emulate it.
+ (open-pipe* OPEN_BOTH "guile"
+ "-L" (string-append directory "/share/guile/site/"
+ (effective-version))
+ "-C" (string-append directory "/share/guile/site/"
+ (effective-version))
+ "-C" (string-append directory "/lib/guile/"
+ (effective-version) "/site-ccache")
+ "-c"
+ (object->string
+ `(begin
+ (primitive-load ,(search-path %load-path
+ "guix/scripts/repl.scm"))
+ ((@ (guix scripts repl) machine-repl))))))
+ pipe)))
+
+(define* (open-inferior directory #:key (command "bin/guix"))
+ "Open the inferior Guix in DIRECTORY, running 'DIRECTORY/COMMAND repl' or
+equivalent. Return #f if the inferior could not be launched."
+ (define pipe
+ (inferior-pipe directory command))
+
+ (setvbuf pipe _IOLBF)
+ (match (read pipe)
+ (('repl-version 0 rest ...)
+ (let ((result (inferior 'pipe pipe (cons 0 rest))))
+ (inferior-eval '(use-modules (guix)) result)
+ (inferior-eval '(use-modules (gnu)) result)
+ (inferior-eval '(define %package-table (make-hash-table))
+ result)
+ result))
+ (_
+ #f)))
+
+(define (close-inferior inferior)
+ "Close INFERIOR."
+ (close-pipe (inferior-socket inferior)))
+
+;; Non-self-quoting object of the inferior.
+(define-record-type <inferior-object>
+ (inferior-object address appearance)
+ inferior-object?
+ (address inferior-object-address)
+ (appearance inferior-object-appearance))
+
+(define (write-inferior-object object port)
+ (match object
+ (($ <inferior-object> _ appearance)
+ (format port "#<inferior-object ~a>" appearance))))
+
+(set-record-type-printer! <inferior-object> write-inferior-object)
+
+(define (inferior-eval exp inferior)
+ "Evaluate EXP in INFERIOR."
+ (define sexp->object
+ (match-lambda
+ (('value value)
+ value)
+ (('non-self-quoting address string)
+ (inferior-object address string))))
+
+ (write exp (inferior-socket inferior))
+ (newline (inferior-socket inferior))
+ (match (read (inferior-socket inferior))
+ (('values objects ...)
+ (apply values (map sexp->object objects)))
+ (('exception key objects ...)
+ (apply throw key (map sexp->object objects)))))
+
+\f
+;;;
+;;; Inferior packages.
+;;;
+
+(define-record-type <inferior-package>
+ (inferior-package inferior name version id)
+ inferior-package?
+ (inferior inferior-package-inferior)
+ (name inferior-package-name)
+ (version inferior-package-version)
+ (id inferior-package-id))
+
+(define (write-inferior-package package port)
+ (match package
+ (($ <inferior-package> _ name version)
+ (format port "#<inferior-package ~a@~a ~a>"
+ name version
+ (number->string (object-address package) 16)))))
+
+(set-record-type-printer! <inferior-package> write-inferior-package)
+
+(define (inferior-packages inferior)
+ "Return the list of packages known to INFERIOR."
+ (let ((result (inferior-eval
+ '(fold-packages (lambda (package result)
+ (let ((id (object-address package)))
+ (hashv-set! %package-table id package)
+ (cons (list (package-name package)
+ (package-version package)
+ id)
+ result)))
+ '())
+ inferior)))
+ (map (match-lambda
+ ((name version id)
+ (inferior-package inferior name version id)))
+ result)))
+
+(define (inferior-package-field package getter)
+ "Return the field of PACKAGE, an inferior package, accessed with GETTER."
+ (let ((inferior (inferior-package-inferior package))
+ (id (inferior-package-id package)))
+ (inferior-eval `(,getter (hashv-ref %package-table ,id))
+ inferior)))
+
+(define* (inferior-package-synopsis package #:key (translate? #t))
+ "Return the Texinfo synopsis of PACKAGE, an inferior package. When
+TRANSLATE? is true, translate it to the current locale's language."
+ (inferior-package-field package
+ (if translate?
+ '(compose (@ (guix ui) P_) package-synopsis)
+ 'package-synopsis)))
+
+(define* (inferior-package-description package #:key (translate? #t))
+ "Return the Texinfo description of PACKAGE, an inferior package. When
+TRANSLATE? is true, translate it to the current locale's language."
+ (inferior-package-field package
+ (if translate?
+ '(compose (@ (guix ui) P_) package-description)
+ 'package-description)))
diff --git a/tests/inferior.scm b/tests/inferior.scm
new file mode 100644
index 000000000..5e0f8ae66
--- /dev/null
+++ b/tests/inferior.scm
@@ -0,0 +1,69 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2018 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (test-inferior)
+ #:use-module (guix inferior)
+ #:use-module (guix packages)
+ #:use-module (gnu packages)
+ #:use-module (srfi srfi-1)
+ #:use-module (srfi srfi-64))
+
+(define %top-srcdir
+ (dirname (search-path %load-path "guix.scm")))
+
+(define %top-builddir
+ (dirname (search-path %load-compiled-path "guix.go")))
+
+\f
+(test-begin "inferior")
+
+(test-equal "open-inferior"
+ '(42 #t)
+ (let ((inferior (open-inferior %top-builddir
+ #:command "scripts/guix")))
+ (and (inferior? inferior)
+ (let ((a (inferior-eval '(apply * '(6 7)) inferior))
+ (b (inferior-eval '(@ (gnu packages base) coreutils)
+ inferior)))
+ (close-inferior inferior)
+ (list a (inferior-object? b))))))
+
+(test-equal "inferior-packages"
+ (take (sort (fold-packages (lambda (package lst)
+ (alist-cons (package-name package)
+ (package-version package)
+ lst))
+ '())
+ (lambda (x y)
+ (string<? (car x) (car y))))
+ 10)
+ (let* ((inferior (open-inferior %top-builddir
+ #:command "scripts/guix"))
+ (packages (inferior-packages inferior)))
+ (and (every string? (map inferior-package-synopsis packages))
+ (begin
+ (close-inferior inferior)
+ (take (sort (map (lambda (package)
+ (cons (inferior-package-name package)
+ (inferior-package-version package)))
+ packages)
+ (lambda (x y)
+ (string<? (car x) (car y))))
+ 10)))))
+
+(test-end "inferior")
--
2.18.0
^ permalink raw reply related [flat|nested] 9+ messages in thread
* [bug#32115] [PATCH 1/3] profiles: Factorize 'manifest-search-paths'.
2018-07-10 16:48 ` [bug#32115] [PATCH 1/2] Add (guix inferior) and (guix scripts repl) Ludovic Courtès
2018-07-10 16:48 ` [bug#32115] [PATCH 1/2] Add (guix inferior) Ludovic Courtès
@ 2018-07-10 16:48 ` Ludovic Courtès
2018-07-10 16:48 ` [bug#32115] [PATCH 2/3] environment: Simplify code by using manifests internally Ludovic Courtès
` (3 subsequent siblings)
5 siblings, 0 replies; 9+ messages in thread
From: Ludovic Courtès @ 2018-07-10 16:48 UTC (permalink / raw)
To: 32115
* guix/profiles.scm (manifest-search-paths): New procedure.
(profile-derivation)[builder]: Use it.
* guix/build/profiles.scm (build-etc/profile): Remove $PATH.
---
guix/build/profiles.scm | 2 +-
guix/profiles.scm | 12 ++++++++++--
2 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/guix/build/profiles.scm b/guix/build/profiles.scm
index 819688a91..df785c85a 100644
--- a/guix/build/profiles.scm
+++ b/guix/build/profiles.scm
@@ -89,7 +89,7 @@ definitions for all the SEARCH-PATHS."
# When GUIX_PROFILE is undefined, the various environment variables refer
# to this specific profile generation.
\n" port)
- (let ((variables (evaluate-search-paths (cons $PATH search-paths)
+ (let ((variables (evaluate-search-paths search-paths
(list output))))
(for-each (write-environment-variable-definition port)
(map (abstract-profile output) variables))))))
diff --git a/guix/profiles.scm b/guix/profiles.scm
index e6b77e8d3..88228f155 100644
--- a/guix/profiles.scm
+++ b/guix/profiles.scm
@@ -91,6 +91,7 @@
manifest-lookup
manifest-installed?
manifest-matching-entries
+ manifest-search-paths
manifest-transaction
manifest-transaction?
@@ -545,6 +546,14 @@ no match.."
(filter matches? (manifest-entries manifest)))
+(define (manifest-search-paths manifest)
+ "Return the list of search path specifications that apply to MANIFEST,
+including the search path specification for $PATH."
+ (delete-duplicates
+ (cons $PATH
+ (append-map manifest-entry-search-paths
+ (manifest-entries manifest)))))
+
\f
;;;
;;; Manifest transactions.
@@ -1367,8 +1376,7 @@ are cross-built for TARGET."
(map sexp->search-path-specification
(delete-duplicates
'#$(map search-path-specification->sexp
- (append-map manifest-entry-search-paths
- (manifest-entries manifest))))))
+ (manifest-search-paths manifest)))))
(build-profile #$output '#$inputs
#:symlink #$(if relative-symlinks?
--
2.18.0
^ permalink raw reply related [flat|nested] 9+ messages in thread
* [bug#32115] [PATCH 2/3] environment: Simplify code by using manifests internally.
2018-07-10 16:48 ` [bug#32115] [PATCH 1/2] Add (guix inferior) and (guix scripts repl) Ludovic Courtès
2018-07-10 16:48 ` [bug#32115] [PATCH 1/2] Add (guix inferior) Ludovic Courtès
2018-07-10 16:48 ` [bug#32115] [PATCH 1/3] profiles: Factorize 'manifest-search-paths' Ludovic Courtès
@ 2018-07-10 16:48 ` Ludovic Courtès
2018-07-10 16:48 ` [bug#32115] [PATCH 2/2] pull: Use (guix inferior) to display new and upgraded packages Ludovic Courtès
` (2 subsequent siblings)
5 siblings, 0 replies; 9+ messages in thread
From: Ludovic Courtès @ 2018-07-10 16:48 UTC (permalink / raw)
To: 32115
* guix/scripts/environment.scm (strip-input-name)
(package+propagated-inputs, package-or-package+output?)
(compact): Remove.
(inputs->profile-derivation): Rename to...
(manifest->derivation): ... this. Replace 'inputs' parameter with
'manifest'.
(input->manifest-entry): New procedure.
(package-environment-inputs): Rewrite to return a list of manifest
entries.
(options/resolve-packages): Rewrite to return a manifest.
(guix-environment): Remove 'inputs'. Define 'paths' in terms of
'manifest-search-paths'.
---
guix/scripts/environment.scm | 156 ++++++++++++++---------------------
1 file changed, 61 insertions(+), 95 deletions(-)
diff --git a/guix/scripts/environment.scm b/guix/scripts/environment.scm
index f8a9702b3..9a69e3b26 100644
--- a/guix/scripts/environment.scm
+++ b/guix/scripts/environment.scm
@@ -1,6 +1,6 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014, 2015, 2018 David Thompson <davet@gnu.org>
-;;; Copyright © 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2018 Mike Gerwitz <mtg@gnu.org>
;;;
;;; This file is part of GNU Guix.
@@ -102,35 +102,23 @@ existing environment variables with additional search paths."
(newline)))
(evaluate-profile-search-paths profile search-paths)))
-(define (strip-input-name input)
- "Remove the name element from the tuple INPUT."
+(define (input->manifest-entry input)
+ "Return a manifest entry for INPUT, or #f if INPUT does not correspond to a
+package."
(match input
- ((_ package) package)
- ((_ package output)
- (list package output))))
-
-(define (package+propagated-inputs package output)
- "Return the union of PACKAGE's OUTPUT and its transitive propagated inputs."
- (cons (list package output)
- (map strip-input-name
- (package-transitive-propagated-inputs package))))
-
-(define (package-or-package+output? expr)
- "Return #t if EXPR is a package or a 2 element list consisting of a package
-and an output string."
- (match expr
- ((or (? package?) ; bare package object
- ((? package?) (? string?))) ; package+output tuple
- #t)
- (_ #f)))
+ ((_ (? package? package))
+ (package->manifest-entry package))
+ ((_ (? package? package) output)
+ (package->manifest-entry package output))
+ (_
+ #f)))
(define (package-environment-inputs package)
- "Return a list of the transitive input packages for PACKAGE."
+ "Return a list of manifest entries corresponding to the transitive input
+packages for PACKAGE."
;; Remove non-package inputs such as origin records.
- (filter package-or-package+output?
- (map strip-input-name
- (bag-transitive-inputs
- (package->bag package)))))
+ (filter-map input->manifest-entry
+ (bag-transitive-inputs (package->bag package))))
(define (show-help)
(display (G_ "Usage: guix environment [OPTION]... PACKAGE... [-- COMMAND...]
@@ -287,55 +275,50 @@ COMMAND or an interactive shell in that environment.\n"))
(_ memo)))
'() alist))
-(define (compact lst)
- "Remove all #f elements from LST."
- (filter identity lst))
-
(define (options/resolve-packages opts)
- "Return OPTS with package specification strings replaced by actual
-packages."
- (define (package->output package mode)
- (match package
- ((? package?)
- (list mode package "out"))
- (((? package? package) (? string? output))
- (list mode package output))))
+ "Return OPTS with package specification strings replaced by manifest entries
+for the corresponding packages."
+ (define (manifest-entry=? e1 e2)
+ (and (eq? (manifest-entry-item e1) (manifest-entry-item e2))
+ (string=? (manifest-entry-output e1)
+ (manifest-entry-output e2))))
(define (packages->outputs packages mode)
(match packages
- ((? package-or-package+output? package) ; single package
- (list (package->output package mode)))
- (((? package-or-package+output?) ...) ; many packages
- (map (cut package->output <> mode) packages))))
+ ((? package? package)
+ (if (eq? mode 'ad-hoc-package)
+ (list (package->manifest-entry package))
+ (package-environment-inputs package)))
+ (((? package? package) (? string? output))
+ (if (eq? mode 'ad-hoc-package)
+ (list (package->manifest-entry package output))
+ (package-environment-inputs package)))
+ ((lst ...)
+ (append-map (cut packages->outputs <> mode) lst))))
- (define (manifest->outputs manifest)
- (map (lambda (entry)
- (cons 'ad-hoc-package ; manifests are implicitly ad-hoc
- (if (package? (manifest-entry-item entry))
- (list (manifest-entry-item entry)
- (manifest-entry-output entry))
- ;; Direct store paths have no output.
- (list (manifest-entry-item entry)))))
- (manifest-entries manifest)))
-
- (compact
- (append-map (match-lambda
- (('package mode (? string? spec))
- (let-values (((package output)
- (specification->package+output spec)))
- (list (list mode package output))))
- (('expression mode str)
- ;; Add all the outputs of the package STR evaluates to.
- (packages->outputs (read/eval str) mode))
- (('load mode file)
- ;; Add all the outputs of the package defined in FILE.
- (let ((module (make-user-module '())))
- (packages->outputs (load* file module) mode)))
- (('manifest . file)
- (let ((module (make-user-module '((guix profiles) (gnu)))))
- (manifest->outputs (load* file module))))
- (_ '(#f)))
- opts)))
+ (manifest
+ (delete-duplicates
+ (append-map (match-lambda
+ (('package 'ad-hoc-package (? string? spec))
+ (let-values (((package output)
+ (specification->package+output spec)))
+ (list (package->manifest-entry package output))))
+ (('package 'package (? string? spec))
+ (package-environment-inputs
+ (specification->package+output spec)))
+ (('expression mode str)
+ ;; Add all the outputs of the package STR evaluates to.
+ (packages->outputs (read/eval str) mode))
+ (('load mode file)
+ ;; Add all the outputs of the package defined in FILE.
+ (let ((module (make-user-module '())))
+ (packages->outputs (load* file module) mode)))
+ (('manifest . file)
+ (let ((module (make-user-module '((guix profiles) (gnu)))))
+ (manifest-entries (load* file module))))
+ (_ '()))
+ opts)
+ manifest-entry=?)))
(define* (build-environment derivations opts)
"Build the DERIVATIONS required by the environment using the build options
@@ -350,11 +333,10 @@ in OPTS."
(return #f)
(built-derivations derivations)))))
-(define (inputs->profile-derivation inputs system bootstrap?)
- "Return the derivation for a profile consisting of INPUTS for SYSTEM.
-BOOTSTRAP? specifies whether to use the bootstrap Guile to build the
-profile."
- (profile-derivation (packages->manifest inputs)
+(define (manifest->derivation manifest system bootstrap?)
+ "Return the derivation for a profile of MANIFEST.
+BOOTSTRAP? specifies whether to use the bootstrap Guile to build the profile."
+ (profile-derivation manifest
#:system system
;; Packages can have conflicting inputs, or explicit
@@ -671,25 +653,9 @@ message if any test fails."
;; within the container.
'("/bin/sh")
(list %default-shell))))
- (packages (options/resolve-packages opts))
+ (manifest (options/resolve-packages opts))
(mappings (pick-all opts 'file-system-mapping))
- (inputs (delete-duplicates
- (append-map (match-lambda
- (('ad-hoc-package package output)
- (package+propagated-inputs package
- output))
- (('package package _)
- (package-environment-inputs package)))
- packages)))
- (paths (delete-duplicates
- (cons $PATH
- (append-map (match-lambda
- ((or ((? package? p) _ ...)
- (? package? p))
- (package-native-search-paths p))
- (_ '()))
- inputs))
- eq?)))
+ (paths (manifest-search-paths manifest)))
(when container? (assert-container-features))
@@ -714,8 +680,8 @@ message if any test fails."
(mlet* %store-monad ((bash (environment-bash container?
bootstrap?
system))
- (prof-drv (inputs->profile-derivation
- inputs system bootstrap?))
+ (prof-drv (manifest->derivation
+ manifest system bootstrap?))
(profile -> (derivation->output-path prof-drv))
(gc-root -> (assoc-ref opts 'gc-root)))
--
2.18.0
^ permalink raw reply related [flat|nested] 9+ messages in thread
* [bug#32115] [PATCH 2/2] pull: Use (guix inferior) to display new and upgraded packages.
2018-07-10 16:48 ` [bug#32115] [PATCH 1/2] Add (guix inferior) and (guix scripts repl) Ludovic Courtès
` (2 preceding siblings ...)
2018-07-10 16:48 ` [bug#32115] [PATCH 2/3] environment: Simplify code by using manifests internally Ludovic Courtès
@ 2018-07-10 16:48 ` Ludovic Courtès
2018-07-10 16:48 ` [bug#32115] [PATCH 3/3] profiles: Introduce 'profile-search-paths' and use it Ludovic Courtès
2018-07-10 16:50 ` [bug#32115] [PATCH 1/2] Add (guix inferior) and (guix scripts repl) Ludovic Courtès
5 siblings, 0 replies; 9+ messages in thread
From: Ludovic Courtès @ 2018-07-10 16:48 UTC (permalink / raw)
To: 32115
* guix/scripts/pull.scm (display-profile-content): Call
'display-generation'.
(display-profile-content-diff): New procedure.
(process-query)[list-generation]: Remove.
[list-generations]: New procedure.
Adjust accordingly.
* doc/guix.texi (Invoking guix pull): Update example of '-l'.
---
doc/guix.texi | 6 +++
guix/scripts/pull.scm | 91 +++++++++++++++++++++++++++++++++++++------
2 files changed, 86 insertions(+), 11 deletions(-)
diff --git a/doc/guix.texi b/doc/guix.texi
index e93b320e8..3e4bceb8a 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -2786,12 +2786,18 @@ Generation 2 Jun 11 2018 11:02:49
repository URL: https://git.savannah.gnu.org/git/guix.git
branch: origin/master
commit: e0cc7f669bec22c37481dd03a7941c7d11a64f1d
+ 2 new packages: keepalived, libnfnetlink
+ 6 packages upgraded: emacs-nix-mode@@2.0.4,
+ guile2.0-guix@@0.14.0-12.77a1aac, guix@@0.14.0-12.77a1aac,
+ heimdal@@7.5.0, milkytracker@@1.02.00, nix@@2.0.4
Generation 3 Jun 13 2018 23:31:07 (current)
guix 844cc1c
repository URL: https://git.savannah.gnu.org/git/guix.git
branch: origin/master
commit: 844cc1c8f394f03b404c5bb3aee086922373490c
+ 28 new packages: emacs-helm-ls-git, emacs-helm-mu, @dots{}
+ 69 packages upgraded: borg@@1.1.6, cheese@@3.28.0, @dots{}
@end example
This @code{~/.config/guix/current} profile works like any other profile
diff --git a/guix/scripts/pull.scm b/guix/scripts/pull.scm
index 7202e3cc1..c61432b04 100644
--- a/guix/scripts/pull.scm
+++ b/guix/scripts/pull.scm
@@ -29,6 +29,7 @@
#:use-module (guix gexp)
#:use-module (guix grafts)
#:use-module (guix monads)
+ #:autoload (guix inferior) (open-inferior)
#:use-module (guix scripts build)
#:autoload (guix self) (whole-package)
#:autoload (gnu packages ssh) (guile-ssh)
@@ -45,9 +46,11 @@
#:use-module ((gnu packages certs) #:select (le-certs))
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
+ #:use-module (srfi srfi-26)
#:use-module (srfi srfi-35)
#:use-module (srfi srfi-37)
#:use-module (ice-9 match)
+ #:use-module (ice-9 vlist)
#:export (guix-pull))
(module-autoload! (resolve-module '(guix scripts pull))
@@ -289,6 +292,7 @@ certificates~%"))
(define (display-profile-content profile number)
"Display the packages in PROFILE, generation NUMBER, in a human-readable
way and displaying details about the channel's source code."
+ (display-generation profile number)
(for-each (lambda (entry)
(format #t " ~a ~a~%"
(manifest-entry-name entry)
@@ -310,6 +314,68 @@ way and displaying details about the channel's source code."
(manifest-entries
(profile-manifest (generation-file-name profile number))))))
+(define (indented-string str indent)
+ "Return STR with each newline preceded by IDENT spaces."
+ (define indent-string
+ (make-list indent #\space))
+
+ (list->string
+ (string-fold-right (lambda (chr result)
+ (if (eqv? chr #\newline)
+ (cons chr (append indent-string result))
+ (cons chr result)))
+ '()
+ str)))
+
+(define (display-profile-content-diff profile gen1 gen2)
+ "Display the changes in PROFILE GEN2 compared to generation GEN1."
+ (define (package-alist generation)
+ (fold (lambda (package lst)
+ (alist-cons (inferior-package-name package)
+ (inferior-package-version package)
+ lst))
+ '()
+ (let* ((directory (generation-file-name profile generation))
+ (inferior (open-inferior directory))
+ (packages (inferior-packages inferior)))
+ (close-inferior inferior)
+ packages)))
+
+ (display-profile-content profile gen2)
+ (let* ((gen1 (fold (match-lambda*
+ (((name . version) table)
+ (vhash-cons name version table)))
+ vlist-null
+ (package-alist gen1)))
+ (gen2 (package-alist gen2))
+ (new (remove (match-lambda
+ ((name . _)
+ (vhash-assoc name gen1)))
+ gen2))
+ (upgraded (filter-map (match-lambda
+ ((name . new-version)
+ (match (vhash-fold* cons '() name gen1)
+ (() #f)
+ ((= (cut sort <> version>?) old-versions)
+ (and (version>? new-version
+ (first old-versions))
+ (string-append name "@"
+ new-version))))))
+ gen2)))
+ (unless (null? new)
+ (format #t (G_ " ~h new packages: ~a~%") (length new)
+ (indented-string
+ (fill-paragraph (string-join (sort (map first new) string<?)
+ ", ")
+ (- (%text-width) 4) 30)
+ 4)))
+ (unless (null? upgraded)
+ (format #t (G_ " ~h packages upgraded: ~a~%") (length upgraded)
+ (indented-string
+ (fill-paragraph (string-join (sort upgraded string<?) ", ")
+ (- (%text-width) 4) 35)
+ 4)))))
+
(define (process-query opts)
"Process any query specified by OPTS."
(define profile
@@ -317,29 +383,32 @@ way and displaying details about the channel's source code."
(match (assoc-ref opts 'query)
(('list-generations pattern)
- (define (list-generation display-function number)
- (unless (zero? number)
- (display-generation profile number)
- (display-function profile number)
- (newline)))
+ (define (list-generations profile numbers)
+ (match numbers
+ ((first rest ...)
+ (display-profile-content profile first)
+ (let loop ((numbers numbers))
+ (match numbers
+ ((first second rest ...)
+ (display-profile-content-diff profile
+ first second)
+ (loop (cons second rest)))
+ ((_) #t)
+ (() #t))))))
(leave-on-EPIPE
(cond ((not (file-exists? profile)) ; XXX: race condition
(raise (condition (&profile-not-found-error
(profile profile)))))
((string-null? pattern)
- (for-each (lambda (generation)
- (list-generation display-profile-content generation))
- (profile-generations profile)))
+ (list-generations profile (profile-generations profile)))
((matching-generations pattern profile)
=>
(match-lambda
(()
(exit 1))
((numbers ...)
- (for-each (lambda (generation)
- (list-generation display-profile-content generation))
- numbers)))))))))
+ (list-generations profile numbers)))))))))
\f
(define (guix-pull . args)
--
2.18.0
^ permalink raw reply related [flat|nested] 9+ messages in thread
* [bug#32115] [PATCH 3/3] profiles: Introduce 'profile-search-paths' and use it.
2018-07-10 16:48 ` [bug#32115] [PATCH 1/2] Add (guix inferior) and (guix scripts repl) Ludovic Courtès
` (3 preceding siblings ...)
2018-07-10 16:48 ` [bug#32115] [PATCH 2/2] pull: Use (guix inferior) to display new and upgraded packages Ludovic Courtès
@ 2018-07-10 16:48 ` Ludovic Courtès
2018-07-10 16:50 ` [bug#32115] [PATCH 1/2] Add (guix inferior) and (guix scripts repl) Ludovic Courtès
5 siblings, 0 replies; 9+ messages in thread
From: Ludovic Courtès @ 2018-07-10 16:48 UTC (permalink / raw)
To: 32115
* guix/profiles.scm (profile-search-paths): New procedure.
* guix/scripts/environment.scm (evaluate-search-paths): Remove.
(create-environment): Replace 'paths' with 'manifest'. Use
'profile-search-paths' instead of 'evaluate-search-paths'.
(show-search-paths): Likewise.
(launch-environment): Replace 'paths' with 'manifest'. Make 'pure?' a
keyword parameter.
(launch-environment/fork, launch-environment/container): Likewise.
(guix-environment): Remove 'paths' variable. Adjust callers of the
above procedures accordingly.
---
guix/profiles.scm | 14 ++++++++++
guix/scripts/environment.scm | 54 +++++++++++++++++-------------------
2 files changed, 39 insertions(+), 29 deletions(-)
diff --git a/guix/profiles.scm b/guix/profiles.scm
index 88228f155..d2a794b18 100644
--- a/guix/profiles.scm
+++ b/guix/profiles.scm
@@ -110,6 +110,7 @@
ca-certificate-bundle
%default-profile-hooks
profile-derivation
+ profile-search-paths
generation-number
generation-numbers
@@ -1400,6 +1401,19 @@ are cross-built for TARGET."
;; to have no substitute to offer.
#:substitutable? #f)))
+(define* (profile-search-paths profile
+ #:optional (manifest (profile-manifest profile))
+ #:key (getenv (const #f)))
+ "Read the manifest of PROFILE and evaluate the values of search path
+environment variables required by PROFILE; return a list of
+specification/value pairs. If MANIFEST is not #f, it is assumed to be the
+manifest of PROFILE, which avoids rereading it.
+
+Use GETENV to determine the current settings and report only settings not
+already effective."
+ (evaluate-search-paths (manifest-search-paths manifest)
+ (list profile) getenv))
+
(define (profile-regexp profile)
"Return a regular expression that matches PROFILE's name and number."
(make-regexp (string-append "^" (regexp-quote (basename profile))
diff --git a/guix/scripts/environment.scm b/guix/scripts/environment.scm
index 9a69e3b26..1c04800e4 100644
--- a/guix/scripts/environment.scm
+++ b/guix/scripts/environment.scm
@@ -49,11 +49,6 @@
#:use-module (srfi srfi-98)
#:export (guix-environment))
-(define (evaluate-profile-search-paths profile search-paths)
- "Evaluate SEARCH-PATHS, a list of search-path specifications, for the
-directories in PROFILE, the store path of a profile."
- (evaluate-search-paths search-paths (list profile)))
-
;; Protect some env vars from purification. Borrowed from nix-shell.
(define %precious-variables
'("HOME" "USER" "LOGNAME" "DISPLAY" "TERM" "TZ" "PAGER"))
@@ -70,8 +65,8 @@ as 'HOME' and 'USER' are left untouched."
(((names . _) ...)
names)))))
-(define (create-environment profile paths pure?)
- "Set the environment variables specified by PATHS for PROFILE. When PURE?
+(define* (create-environment profile manifest #:key pure?)
+ "Set the environment variables specified by MANIFEST for PROFILE. When PURE?
is #t, unset the variables in the current environment. Otherwise, augment
existing environment variables with additional search paths."
(when pure? (purify-environment))
@@ -84,23 +79,23 @@ existing environment variables with additional search paths."
(string-append value separator current)
value)
value)))))
- (evaluate-profile-search-paths profile paths))
+ (profile-search-paths profile manifest))
;; Give users a way to know that they're in 'guix environment', so they can
;; adjust 'PS1' accordingly, for instance. Set it to PROFILE so users can
;; conveniently access its contents.
(setenv "GUIX_ENVIRONMENT" profile))
-(define (show-search-paths profile search-paths pure?)
- "Display SEARCH-PATHS applied to PROFILE. When PURE? is #t, do not augment
-existing environment variables with additional search paths."
+(define* (show-search-paths profile manifest #:key pure?)
+ "Display the search paths of MANIFEST applied to PROFILE. When PURE? is #t,
+do not augment existing environment variables with additional search paths."
(for-each (match-lambda
((search-path . value)
(display
(search-path-definition search-path value
#:kind (if pure? 'exact 'prefix)))
(newline)))
- (evaluate-profile-search-paths profile search-paths)))
+ (profile-search-paths profile manifest)))
(define (input->manifest-entry input)
"Return a manifest entry for INPUT, or #f if INPUT does not correspond to a
@@ -379,32 +374,34 @@ and suitable for 'exit'."
(define exit/status (compose exit status->exit-code))
(define primitive-exit/status (compose primitive-exit status->exit-code))
-(define (launch-environment command inputs paths pure?)
+(define* (launch-environment command profile manifest
+ #:key pure?)
"Run COMMAND in a new environment containing INPUTS, using the native search
paths defined by the list PATHS. When PURE?, pre-existing environment
variables are cleared before setting the new ones."
;; Properly handle SIGINT, so pressing C-c in an interactive terminal
;; application works.
(sigaction SIGINT SIG_DFL)
- (create-environment inputs paths pure?)
+ (create-environment profile manifest #:pure? pure?)
(match command
((program . args)
(apply execlp program program args))))
-(define (launch-environment/fork command inputs paths pure?)
- "Run COMMAND in a new process with an environment containing INPUTS, using
-the native search paths defined by the list PATHS. When PURE?, pre-existing
-environment variables are cleared before setting the new ones."
+(define* (launch-environment/fork command profile manifest #:key pure?)
+ "Run COMMAND in a new process with an environment containing PROFILE, with
+the search paths specified by MANIFEST. When PURE?, pre-existing environment
+variables are cleared before setting the new ones."
(match (primitive-fork)
- (0 (launch-environment command inputs paths pure?))
+ (0 (launch-environment command profile manifest
+ #:pure? pure?))
(pid (match (waitpid pid)
((_ . status) status)))))
(define* (launch-environment/container #:key command bash user user-mappings
- profile paths link-profile? network?)
+ profile manifest link-profile? network?)
"Run COMMAND within a container that features the software in PROFILE.
-Environment variables are set according to PATHS, a list of native search
-paths. The global shell is BASH, a file name for a GNU Bash binary in the
+Environment variables are set according to the search paths of MANIFEST.
+The global shell is BASH, a file name for a GNU Bash binary in the
store. When NETWORK?, access to the host system network is permitted.
USER-MAPPINGS, a list of file system mappings, contains the user-specified
host file systems to mount inside the container. If USER is not #f, each
@@ -496,7 +493,7 @@ will be used for the passwd entry. LINK-PROFILE? creates a symbolic link from
(primitive-exit/status
;; A container's environment is already purified, so no need to
;; request it be purified again.
- (launch-environment command profile paths #f)))
+ (launch-environment command profile manifest #:pure? #f)))
#:namespaces (if network?
(delq 'net %namespaces) ; share host network
%namespaces)))))))
@@ -654,8 +651,7 @@ message if any test fails."
'("/bin/sh")
(list %default-shell))))
(manifest (options/resolve-packages opts))
- (mappings (pick-all opts 'file-system-mapping))
- (paths (manifest-search-paths manifest)))
+ (mappings (pick-all opts 'file-system-mapping)))
(when container? (assert-container-features))
@@ -700,7 +696,7 @@ message if any test fails."
((assoc-ref opts 'dry-run?)
(return #t))
((assoc-ref opts 'search-paths)
- (show-search-paths profile paths pure?)
+ (show-search-paths profile manifest #:pure? pure?)
(return #t))
(container?
(let ((bash-binary
@@ -713,11 +709,11 @@ message if any test fails."
#:user user
#:user-mappings mappings
#:profile profile
- #:paths paths
+ #:manifest manifest
#:link-profile? link-prof?
#:network? network?)))
(else
(return
(exit/status
- (launch-environment/fork command profile
- paths pure?)))))))))))))
+ (launch-environment/fork command profile manifest
+ #:pure? pure?)))))))))))))
--
2.18.0
^ permalink raw reply related [flat|nested] 9+ messages in thread
* [bug#32115] [PATCH 1/2] Add (guix inferior) and (guix scripts repl).
2018-07-10 16:48 ` [bug#32115] [PATCH 1/2] Add (guix inferior) and (guix scripts repl) Ludovic Courtès
` (4 preceding siblings ...)
2018-07-10 16:48 ` [bug#32115] [PATCH 3/3] profiles: Introduce 'profile-search-paths' and use it Ludovic Courtès
@ 2018-07-10 16:50 ` Ludovic Courtès
5 siblings, 0 replies; 9+ messages in thread
From: Ludovic Courtès @ 2018-07-10 16:50 UTC (permalink / raw)
To: 32115
Oops, apologies for the mess, I sent more patches than I wanted. I hope
you’ll find out which ones matter. :-)
Ludo’.
^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#32115: [PATCH 0/2] Add (guix inferior) and improve 'guix pull -l'
2018-07-10 16:45 [bug#32115] [PATCH 0/2] Add (guix inferior) and improve 'guix pull -l' Ludovic Courtès
2018-07-10 16:48 ` [bug#32115] [PATCH 1/2] Add (guix inferior) and (guix scripts repl) Ludovic Courtès
@ 2018-07-13 15:59 ` Ludovic Courtès
1 sibling, 0 replies; 9+ messages in thread
From: Ludovic Courtès @ 2018-07-13 15:59 UTC (permalink / raw)
To: 32115-done
Ludovic Courtès <ludo@gnu.org> skribis:
> This patch adds (guix inferior), a module to interact with an inferior Guix
> process, along with a ‘guix repl’ command, which spawns a REPL optionally a
> simple sexp-based protocol.
>
> ‘guix pull -l’ uses (guix inferior) to display this:
>
> Generation 1 Jun 10 2018 00:18:18
> guix 65956ad
> repository URL: https://git.savannah.gnu.org/git/guix.git
> branch: origin/master
> commit: 65956ad3526ba09e1f7a40722c96c6ef7c0936fe
> Generation 2 Jun 11 2018 11:02:49
> guix e0cc7f6
> repository URL: https://git.savannah.gnu.org/git/guix.git
> branch: origin/master
> commit: e0cc7f669bec22c37481dd03a7941c7d11a64f1d
> 2 new packages: keepalived, libnfnetlink
> 6 packages upgraded: emacs-nix-mode@2.0.4, guile2.0-guix@0.14.0-12.77a1aac,
> guix@0.14.0-12.77a1aac, heimdal@7.5.0, milkytracker@1.02.00, nix@2.0.4
> Generation 3 Jun 13 2018 23:31:07
> guix 844cc1c
> repository URL: https://git.savannah.gnu.org/git/guix.git
> branch: origin/master
> commit: 844cc1c8f394f03b404c5bb3aee086922373490c
> 28 new packages: emacs-helm-ls-git, emacs-helm-mu, emacs-helm-pass, emacs-image+,
> emacs-package-lint, emacs-puppet-mode, emacs-wgrep-helm, go-github-com-gorilla-mux,
> go-github-com-jonboulle-clockwork, go-github-com-spf13-pflag, libostree, ovmf-aarch64, ovmf-arm, qtwebglplugin,
> qtwebview, r-ellipse, r-factoextra, r-factominer, r-flashclust, r-ggpubr, r-ggsci, r-ggsignif, r-hdf5r,
> r-nbclust, r-writexl, skopeo, umoci, vkd3d
> 69 packages upgraded: borg@1.1.6, cheese@3.28.0, cpupower@4.17.1, efivar@36, emacs-orgalist@1.8,
> emacspeak@48.0, font-gnu-unifont@11.0.01, freefall@4.17.1, glslang@3.0-3.32d3ec319, guile-bytestructures@1.0.3,
> guile2.0-bytestructures@1.0.3, iproute2@4.17.0, ldb@1.4.0, libfilezilla@0.12.3, libndp@1.7, libraw@0.18.12,
I pushed these patches with a couple of improvements. Let me know what
you think!
Ludo’.
^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2018-07-13 16:01 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-07-10 16:45 [bug#32115] [PATCH 0/2] Add (guix inferior) and improve 'guix pull -l' Ludovic Courtès
2018-07-10 16:48 ` [bug#32115] [PATCH 1/2] Add (guix inferior) and (guix scripts repl) Ludovic Courtès
2018-07-10 16:48 ` [bug#32115] [PATCH 1/2] Add (guix inferior) Ludovic Courtès
2018-07-10 16:48 ` [bug#32115] [PATCH 1/3] profiles: Factorize 'manifest-search-paths' Ludovic Courtès
2018-07-10 16:48 ` [bug#32115] [PATCH 2/3] environment: Simplify code by using manifests internally Ludovic Courtès
2018-07-10 16:48 ` [bug#32115] [PATCH 2/2] pull: Use (guix inferior) to display new and upgraded packages Ludovic Courtès
2018-07-10 16:48 ` [bug#32115] [PATCH 3/3] profiles: Introduce 'profile-search-paths' and use it Ludovic Courtès
2018-07-10 16:50 ` [bug#32115] [PATCH 1/2] Add (guix inferior) and (guix scripts repl) Ludovic Courtès
2018-07-13 15:59 ` bug#32115: [PATCH 0/2] Add (guix inferior) and improve 'guix pull -l' Ludovic Courtès
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