* [bug#32104] [PATCH 2/3] environment: Simplify code by using manifests internally.
2018-07-09 11:39 ` [bug#32104] [PATCH 1/3] profiles: Factorize 'manifest-search-paths' Ludovic Courtès
@ 2018-07-09 11:39 ` Ludovic Courtès
2018-07-09 11:39 ` [bug#32104] [PATCH 3/3] profiles: Introduce 'profile-search-paths' and use it Ludovic Courtès
1 sibling, 0 replies; 6+ messages in thread
From: Ludovic Courtès @ 2018-07-09 11:39 UTC (permalink / raw)
To: 32104
* 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] 6+ messages in thread* [bug#32104] [PATCH 3/3] profiles: Introduce 'profile-search-paths' and use it.
2018-07-09 11:39 ` [bug#32104] [PATCH 1/3] profiles: Factorize 'manifest-search-paths' Ludovic Courtès
2018-07-09 11:39 ` [bug#32104] [PATCH 2/3] environment: Simplify code by using manifests internally Ludovic Courtès
@ 2018-07-09 11:39 ` Ludovic Courtès
1 sibling, 0 replies; 6+ messages in thread
From: Ludovic Courtès @ 2018-07-09 11:39 UTC (permalink / raw)
To: 32104
* 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] 6+ messages in thread