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authorLudovic Courtès <ludo@gnu.org>2015-05-06 17:08:00 +0200
committerLudovic Courtès <ludo@gnu.org>2015-05-06 18:26:54 +0200
commitd664f1b431d2a64ff58ddc4ccce40e187947b960 (patch)
tree81dbd7402d8dae149a4899b2734837cfee2eefd3
parent611adb1ee5814907694abc9afa1bad984f0cbea0 (diff)
profiles: Generate an 'etc/profile' file.
Suggested by 宋文武 <iyzsong@gmail.com> in <http://bugs.gnu.org/20255>. * guix/build/profiles.scm (abstract-profile, write-environment-variable-definition): New procedures. (build-profile): Add #:search-paths parameter. Create OUTPUT/etc/profile. * guix/profiles.scm (profile-derivation)[builder]: Add 'search-paths' variable and pass it to 'build-profile'. Adjust #:modules argument. * tests/profiles.scm ("etc/profile"): New test. * doc/guix.texi (Invoking guix package): Mention etc/profile.
-rw-r--r--.dir-locals.el1
-rw-r--r--doc/guix.texi10
-rw-r--r--guix/build/profiles.scm67
-rw-r--r--guix/profiles.scm21
-rw-r--r--tests/profiles.scm26
5 files changed, 118 insertions, 7 deletions
diff --git a/.dir-locals.el b/.dir-locals.el
index 7aef853625..eb3da94da4 100644
--- a/.dir-locals.el
+++ b/.dir-locals.el
@@ -14,6 +14,7 @@
((indent-tabs-mode . nil)
(eval . (put 'eval-when 'scheme-indent-function 1))
(eval . (put 'test-assert 'scheme-indent-function 1))
+ (eval . (put 'test-assertm 'scheme-indent-function 1))
(eval . (put 'test-equal 'scheme-indent-function 1))
(eval . (put 'test-eq 'scheme-indent-function 1))
(eval . (put 'call-with-input-string 'scheme-indent-function 1))
diff --git a/doc/guix.texi b/doc/guix.texi
index 8241cb07bf..1b1690a8e3 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -950,6 +950,16 @@ created in @file{$HOME/.guix-profile}. This symlink always points to the
current generation of the user's default profile. Thus, users can add
@file{$HOME/.guix-profile/bin} to their @code{PATH} environment
variable, and so on.
+@cindex search paths
+If you are not using the Guix System Distribution, consider adding the
+following lines to your @file{~/.bash_profile} (@pxref{Bash Startup
+Files,,, bash, The GNU Bash Reference Manual}) so that newly-spawned
+shells get all the right environment variable definitions:
+
+@example
+GUIX_PROFILE="$HOME/.guix-profile" \
+source "$HOME/.guix-profile/etc/profile"
+@end example
In a multi-user setup, user profiles are stored in a place registered as
a @dfn{garbage-collector root}, which @file{$HOME/.guix-profile} points
diff --git a/guix/build/profiles.scm b/guix/build/profiles.scm
index 1c5b54e40b..eda54cb37a 100644
--- a/guix/build/profiles.scm
+++ b/guix/build/profiles.scm
@@ -18,6 +18,10 @@
(define-module (guix build profiles)
#:use-module (guix build union)
+ #:use-module (guix build utils)
+ #:use-module (guix search-paths)
+ #:use-module (srfi srfi-26)
+ #:use-module (ice-9 match)
#:use-module (ice-9 pretty-print)
#:export (build-profile))
@@ -28,14 +32,71 @@
;;;
;;; Code:
+(define (abstract-profile profile)
+ "Return a procedure that replaces PROFILE in VALUE with a reference to the
+'GUIX_PROFILE' environment variable. This allows users to specify what the
+user-friendly name of the profile is, for instance ~/.guix-profile rather than
+/gnu/store/...-profile."
+ (let ((replacement (string-append "${GUIX_PROFILE:-" profile "}")))
+ (match-lambda
+ ((search-path . value)
+ (let* ((separator (search-path-specification-separator search-path))
+ (items (string-tokenize* value separator))
+ (crop (cute string-drop <> (string-length profile))))
+ (cons search-path
+ (string-join (map (lambda (str)
+ (string-append replacement (crop str)))
+ items)
+ separator)))))))
+
+(define (write-environment-variable-definition port)
+ "Write the given environment variable definition to PORT."
+ (match-lambda
+ ((search-path . value)
+ (display (search-path-definition search-path value #:kind 'prefix)
+ port)
+ (newline port))))
+
(define* (build-profile output inputs
- #:key manifest)
+ #:key manifest search-paths)
"Build a user profile from INPUTS in directory OUTPUT. Write MANIFEST, an
-sexp, to OUTPUT/manifest."
+sexp, to OUTPUT/manifest. Create OUTPUT/etc/profile with Bash definitions for
+all the variables listed in SEARCH-PATHS."
+ ;; Make the symlinks.
(union-build output inputs
#:log-port (%make-void-port "w"))
+
+ ;; Store meta-data.
(call-with-output-file (string-append output "/manifest")
(lambda (p)
- (pretty-print manifest p))))
+ (pretty-print manifest p)))
+
+ ;; Add a ready-to-use Bash profile.
+ (mkdir-p (string-append output "/etc"))
+ (call-with-output-file (string-append output "/etc/profile")
+ (lambda (port)
+ ;; The use of $GUIX_PROFILE described below is not great. Another
+ ;; option would have been to use "$1" and have users run:
+ ;;
+ ;; source ~/.guix-profile/etc/profile ~/.guix-profile
+ ;;
+ ;; However, when 'source' is used with no arguments, $1 refers to the
+ ;; first positional parameter of the calling scripts, so we can rely on
+ ;; it.
+ (display "\
+# Source this file to define all the relevant environment variables in Bash
+# for this profile. You may want to define the 'GUIX_PROFILE' environment
+# variable to point to the \"visible\" name of the profile, like this:
+#
+# GUIX_PROFILE=/path/to/profile
+# source /path/to/profile/etc/profile
+#
+# When GUIX_PROFILE is undefined, the various environment variables refer
+# to this specific profile generation.
+\n" port)
+ (let ((variables (evaluate-search-paths (cons $PATH search-paths)
+ (list output))))
+ (for-each (write-environment-variable-definition port)
+ (map (abstract-profile output) variables))))))
;;; profile.scm ends here
diff --git a/guix/profiles.scm b/guix/profiles.scm
index afc22e118d..11d9bf0cd9 100644
--- a/guix/profiles.scm
+++ b/guix/profiles.scm
@@ -598,17 +598,30 @@ the monadic procedures listed in HOOKS--such as an Info 'dir' file, etc."
(define builder
#~(begin
- (use-modules (guix build profiles))
+ (use-modules (guix build profiles)
+ (guix search-paths))
(setvbuf (current-output-port) _IOLBF)
(setvbuf (current-error-port) _IOLBF)
+ (define search-paths
+ ;; Search paths of MANIFEST's packages, converted back to their
+ ;; record form.
+ (map sexp->search-path-specification
+ '#$(map search-path-specification->sexp
+ (append-map manifest-entry-search-paths
+ (manifest-entries manifest)))))
+
(build-profile #$output '#$inputs
- #:manifest '#$(manifest->gexp manifest))))
+ #:manifest '#$(manifest->gexp manifest)
+ #:search-paths search-paths)))
(gexp->derivation "profile" builder
- #:modules '((guix build union)
- (guix build profiles))
+ #:modules '((guix build profiles)
+ (guix build union)
+ (guix build utils)
+ (guix search-paths)
+ (guix records))
#:local-build? #t)))
(define (profile-regexp profile)
diff --git a/tests/profiles.scm b/tests/profiles.scm
index 890f09a751..a39717191d 100644
--- a/tests/profiles.scm
+++ b/tests/profiles.scm
@@ -29,6 +29,8 @@
#:use-module ((gnu packages guile) #:prefix packages:)
#:use-module (ice-9 match)
#:use-module (ice-9 regex)
+ #:use-module (ice-9 popen)
+ #:use-module (rnrs io ports)
#:use-module (srfi srfi-11)
#:use-module (srfi srfi-64))
@@ -220,6 +222,30 @@
(manifest-entry-search-paths entry)
(package-native-search-paths
packages:guile-2.0)))))))))
+
+(test-assertm "etc/profile"
+ ;; Make sure we get an 'etc/profile' file that at least defines $PATH.
+ (mlet* %store-monad
+ ((guile -> (package
+ (inherit %bootstrap-guile)
+ (native-search-paths
+ (package-native-search-paths packages:guile-2.0))))
+ (entry -> (package->manifest-entry guile))
+ (drv (profile-derivation (manifest (list entry))
+ #:hooks '()))
+ (profile -> (derivation->output-path drv)))
+ (mbegin %store-monad
+ (built-derivations (list drv))
+ (let* ((pipe (open-input-pipe
+ (string-append "source "
+ profile "/etc/profile; "
+ "unset GUIX_PROFILE; set")))
+ (env (get-string-all pipe)))
+ (return
+ (and (zero? (close-pipe pipe))
+ (string-contains env
+ (string-append "PATH=" profile "/bin"))))))))
+
(test-end "profiles")