Age | Commit message (Expand) | Author |
2018-03-02 | environment: Add --link-profile....This change is motivated by attempts to run programs (like GNU IceCat) within
containers. The 'fontconfig' program, for example, is configured explicitly
to check ~/.guix-profile for additional fonts.
There were no existing container tests in 'tests/guix-environment.sh', but I
added one anyway for this change.
* doc/guix.texi (Invoking guix environment): Add '--link-profile'.
* guix/scripts/environment.scm (show-help): Add '--link-profile'.
(%options): Add 'link-profile' as '#\P', assigned to 'link-profile?'.
(link-environment): New procedure.
(launch-environment/container): Use it when 'link-profile?'.
[link-profile?]: New parameter.
(guix-environment): Leave when '--link-prof' but not '--container'. Add
'#:link-profile?' argument to 'launch-environment/container' application.
* tests/guix-environment-container.sh: New '--link-profile' test.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
| Mike Gerwitz |
2018-02-21 | environment: Add --manifest option....* guix/scripts/environment.scm (show-help, %options): Add -m/--manifest.
(options/resolve-packages): Handle manifests.
* tests/guix-envronment.sh: Add a test.
* doc/guix.texi (Invoking guix environment): Document it.
| David Thompson |
2017-12-07 | scripts: All commands enable build hooks by default....* guix/scripts/archive.scm (%default-options): Add 'build-hook?'.
* guix/scripts/copy.scm (%default-options): Likewise.
* guix/scripts/environment.scm (%default-options): Likewise.
* guix/scripts/pack.scm (%default-options): Likewise.
* guix/scripts/package.scm (%default-options): Likewise.
* guix/scripts/pull.scm (%default-options): Likewise.
| Ludovic Courtès |
2017-12-03 | scripts: Default to Guile 2.2 as the guile-for-build....* guix/scripts/environment.scm (guix-environment): '%guile-for-build'
now defaults to GUILE-2.2 instead of GUILE-2.0.
* guix/scripts/package.scm (guix-package): Likewise.
* guix/scripts/pull.scm (guix-pull): Likewise.
| Ludovic Courtès |
2017-09-01 | scripts: Remove 'max-silent-time' from the default options....Fixes <http://bugs.gnu.org/27157>.
Having a finite default `max-silent-time' value for scripts such as 'guix
environment' could lead to timeouts when building subtitutes; this was
undesirable.
This change also fixes client behavior to match the documentation, which
is that by default the daemon's settings are honored.
* guix/scripts/archive.scm (%default-options): Remove max-silent-time entry.
* guix/scripts/copy.scm (%default-options): Likewise.
* guix/scripts/environment.scm (%default-options): Likewise.
* guix/scripts/pack.scm (%default-options): Likewise.
* guix/scripts/package.scm (%default-options): Likewise.
* guix/scripts/pull.scm (%default-options): Likewise.
* guix/scripts/system.scm (%default-options): Likewise.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
| Maxim Cournoyer |
2017-07-12 | environment: Rationalize calls to 'set-build-options'....Before this change '--substitute-urls' would be ignored.
* guix/scripts/environment.scm (build-environment): Remove redundant
call to 'set-build-options-from-command-line*'.
(guix-environment): Move 'set-build-options-from-command-line' right
after 'with-store'.
| Ludovic Courtès |
2017-06-21 | environment: Disable profile collision checks....Reported by Efraim Flashner.
This is a followup to a654dc4bcf7c8e205bdefa1a1d5f23444dd22778.
* guix/profiles.scm (profile-derivation): Add #:allow-collisions? and
honor it.
* guix/scripts/environment.scm (inputs->profile-derivation): Pass
#:allow-collisions? #f to 'profile-derivation'.
* tests/guix-environment.sh: Test "guix environment guix".
| Ludovic Courtès |
2017-05-04 | environment: Correct typo....* guix/scripts/environment.scm (create-environment): Fix typo.
| Tobias Geerinckx-Rice |
2017-05-03 | ui: Rename '_' to 'G_'....This avoids collisions with '_' when the latter is used as a 'match'
pattern for instance. See
<https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00464.html>.
* guix/ui.scm: Rename '_' to 'G_'.
* po/guix/Makevars (XGETTEXT_OPTIONS): Adjust accordingly.
* build-aux/compile-all.scm (warnings): Remove 'format'.
* gnu/packages.scm,
gnu/services.scm,
gnu/services/shepherd.scm,
gnu/system.scm,
gnu/system/shadow.scm,
guix/gnupg.scm,
guix/http-client.scm,
guix/import/cpan.scm,
guix/import/elpa.scm,
guix/import/pypi.scm,
guix/nar.scm,
guix/scripts.scm,
guix/scripts/archive.scm,
guix/scripts/authenticate.scm,
guix/scripts/build.scm,
guix/scripts/challenge.scm,
guix/scripts/container.scm,
guix/scripts/container/exec.scm,
guix/scripts/copy.scm,
guix/scripts/download.scm,
guix/scripts/edit.scm,
guix/scripts/environment.scm,
guix/scripts/gc.scm,
guix/scripts/graph.scm,
guix/scripts/hash.scm,
guix/scripts/import.scm,
guix/scripts/import/cpan.scm,
guix/scripts/import/cran.scm,
guix/scripts/import/crate.scm,
guix/scripts/import/elpa.scm,
guix/scripts/import/gem.scm,
guix/scripts/import/gnu.scm,
guix/scripts/import/hackage.scm,
guix/scripts/import/nix.scm,
guix/scripts/import/pypi.scm,
guix/scripts/import/stackage.scm,
guix/scripts/lint.scm,
guix/scripts/offload.scm,
guix/scripts/pack.scm,
guix/scripts/package.scm,
guix/scripts/perform-download.scm,
guix/scripts/publish.scm,
guix/scripts/pull.scm,
guix/scripts/refresh.scm,
guix/scripts/size.scm,
guix/scripts/substitute.scm,
guix/scripts/system.scm,
guix/ssh.scm,
guix/upstream.scm: Use 'G_' instead of '_'. Most of this change was
obtained by running: "sed -i -e's/(_ "/(G_ "/g' `find -name \*.scm`".
| Ludovic Courtès |
2017-04-05 | environment: Deal with single-entry search paths....This is a followup to fcd75bdbfa99d14363b905afbf914eec20e69df8.
* guix/scripts/environment.scm (create-environment): Check whether
SEPARATOR is #f.
| Ludovic Courtès |
2017-02-07 | file-systems: Add '%network-configuration-files' and '%network-file-mappings'....* gnu/system/file-systems.scm (%network-configuration-files)
(%network-file-mappings): New variables.
* guix/scripts/environment.scm (%network-configuration-files): Remove.
(launch-environment/container): Refer to '%network-file-mappings'
instead of calling 'filter-map'.
| Ludovic Courtès |
2017-02-03 | file-systems: Add 'file-system-mapping->bind-mount'....* gnu/system/file-systems.scm (file-system-mapping->bind-mount): New
procedure.
* gnu/system/linux-container.scm (mapping->file-system): Remove.
(containerized-operating-system)[mapping->fs]: Use
'file-system-mapping->bind-mount' instead of 'mapping->file-system'.
* guix/scripts/environment.scm (launch-environment/container): Likewise.
| Ludovic Courtès |
2017-01-30 | environment: Fix setting writable? on networking related files...* guix/scripts/environment.scm (launch-environment/container): Include the
file name in the call to string=? when deciding if the file should be
writable.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
| Christopher Baines |
2017-01-19 | guix environment, build: Allow absolute file names with '--root'....Reported by Chris Webber.
* guix/scripts/build.scm (register-root): If ROOT is absolute, keep it
as is.
* guix/scripts/environment.scm (register-gc-root): Likewise.
* tests/guix-environment.sh (expected): Add test.
| Ludovic Courtès |
2016-12-20 | environment: Add '--root' option....* guix/scripts/environment.scm (show-help, %options): Add --root.
(register-gc-root): New procedure.
(guix-environment): Call 'register-gc-root' when OPTS has a 'gc-root'
option.
* doc/guix.texi (Invoking guix environment): Document it.
* tests/guix-environment.sh: Add tests.
| Ludovic Courtès |
2016-12-17 | profiles: Remove dependency on 'glibc-utf8-locales' for tests....Commit 1af0860e8be81c01ad405c1226d6bc4516e62863 added a mandatory
dependency on 'glibc-utf8-locales', which entails long rebuilds for
tests.
* guix/profiles.scm (profile-derivation): Add #:locales? parameter.
Add 'set-utf8-locale' variable. Use it when LOCALES? is true.
(link-to-empty-profile): Pass #:locales? #f.
* guix/scripts/environment.scm (inputs->profile-derivation): Pass
#:locales?.
* guix/scripts/package.scm (build-and-use-profile): Likewise.
* tests/packages.scm ("--search-paths with pattern"): Pass #:locales? #f.
* tests/profiles.scm ("profile-derivation")
("profile-derivation, inputs", "profile-manifest, search-paths")
("etc/profile", "etc/profile when etc/ already exists"):
("etc/profile when etc/ is a symlink"): Likewise.
| Ludovic Courtès |
2016-11-10 | container: Pass a list of <file-system> objects as things to mount....* gnu/build/linux-container.scm (mount-file-systems): 'mounts' is now a
list of <file-system> objects instead of a list of lists ("specs").
Add call to 'file-system->spec' as the argument to 'mount-file-system'.
(run-container, call-with-container): Adjust docstring accordingly.
* gnu/system/file-systems.scm (spec->file-system): New procedure.
* gnu/system/linux-container.scm (container-script)[script]: Call
'spec->file-system' inside gexp.
* guix/scripts/environment.scm (launch-environment/container): Remove
call to 'file-system->spec'.
* tests/containers.scm ("call-with-container, mnt namespace")
("call-with-container, mnt namespace, wrong bind mount"): Pass a list of
<file-system> objects.
| Ludovic Courtès |
2016-08-28 | guix scripts: Disable grafting on dry runs....* guix/scripts/archive.scm, guix/scripts/build.scm,
guix/scripts/environment.scm, guix/scripts/system.scm,
guix/scripts/package.scm: Disable grafting when a dry-run parameter is given.
| Roel Janssen |
2016-07-26 | environment: Set 'GUIX_ENVIRONMENT' to the profile....* guix/scripts/environment.scm (create-environment): Set
'GUIX_ENVIRONMENT' to PROFILE.
* tests/guix-environment.sh: Test it.
* doc/guix.texi (Invoking guix environment): Document it.
| Ludovic Courtès |
2016-05-24 | store: 'requisites' now takes a list of store items....* guix/store.scm (fold-path): Change 'path' to 'paths' and adjust body
accordingly.
(requisites): Likewise.
* guix/scripts/environment.scm (inputs->requisites): Adjust
user accordingly.
* guix/scripts/size.scm (requisites*): Likewise.
* guix/scripts/gc.scm (guix-gc): Likewise.
* tests/store.scm ("requisites"): Likewise.
| Ludovic Courtès |
2016-05-04 | environment: Use 'break' instead of 'split'....* guix/scripts/environment.scm (parse-args): Use 'break' instead of
'split'.
| Ludovic Courtès |
2016-04-07 | environment: container: Work around read-only /etc/resolv.conf issue....* guix/scripts/environment.scm (launch-environment/container): Mount
/etc/resolv.conf as a writable file.
| David Thompson |
2016-03-30 | environment: Set a default value for PS1....* guix/scripts/environment.scm (launch-environment/container): Set PS1
during container initialization.
| David Thompson |
2016-03-27 | environment: Properly handle SIGINT....Switching to execlp means that the process spawned in a container is PID
1, which obsoleted one of the 'guix environment --container' tests
because the init process can't be killed in the usual manner.
* guix/scripts/environment.scm (launch-environment/fork): New procedure.
(launch-environment): Switch from system* to execlp. Add handler for
SIGINT.
(guix-environment): Use launch-environment/fork.
* tests/guix-environment-container.sh: Replace abnormal exit test with
one that works now that the spawned process is PID 1.
| David Thompson |
2016-03-26 | environment: container: Create dummy home directory and /etc/passwd....* guix/scripts/environment.scm (launch-environment/container): Change
$HOME to the current user's home directory instead of
/homeless-shelter. Create a dummy /etc/passwd with a single entry for
the current user.
* doc/guix.texi ("invoking guix environment"): Add a note about the
dummy home directory and /etc/passwd.
| David Thompson |
2016-03-02 | guix build: Move '--no-grafts' to the common build options....* guix/scripts/build.scm (%options): Move --no-grafts to...
(%standard-build-options): ... here.
(show-help, show-build-options-help): Adjust accordingly.
* guix/scripts/archive.scm (%default-options): Add 'graft?'.
(guix-archive): Parametrize '%graft?'.
* guix/scripts/environment.scm (%default-options): Add 'graft?'.
(guix-environment): Parametrize '%graft?'.
* guix/scripts/package.scm (%default-options): Add 'graft?'.
(guix-package): Parametrize '%graft?'.
* guix/scripts/system.scm (%default-options): Add 'graft?'.
(guix-system): Parametrize 'graft?'.
* doc/guix.texi (Additional Build Options): Move --no-grafts to...
(Common Build Options): ... here.
| Ludovic Courtès |
2016-02-12 | scripts: environment: Build environments as profiles....Fixes <http://bugs.gnu.org/19816>.
* guix/scripts/environment.scm (evaluate-input-search-paths)
(build-inputs): Delete.
(evaluate-profile-search-paths, strip-input-name)
(package-or-package+output?, package-environment-inputs)
(build-environment, inputs->profile-derivations): New procedures.
(create-environment, show-search-paths, launch-environment)
(launch-environment/container): Replace 'inputs' argument
with 'profile' argument.
(package+propagated-inputs): Strip off names off of input tuples.
(options/resolve-packages): Handle input tuples that specify an output
in expressions.
(guix-environment): Convert inputs into a profile to use in the
environment. Remove non-package inputs such as origins from
environment inputs.
* doc/guix.texi ("invoking guix environment"): Document package+output
tuples for --expression option.
* tests/guix-environment.sh: Update tests.
* tests/guix-environment-container.sh: Likewise.
Co-authored-by: Ludovic Courtès <ludo@gnu.org>
| David Thompson |
2015-11-28 | environment: Set build options early on....This fixes a bug whereby some options, such as #:substitute-urls, would
be passed to the daemon too late to have an effect.
* guix/scripts/environment.scm (build-inputs): Remove call to
'set-build-options-from-command-line*'.
(guix-environment): Add call to 'set-build-options-from-command-line' as
early as possible.
| Ludovic Courtès |
2015-11-21 | environment: Correctly handle abnormal exits....Fixes <http://bugs.gnu.org/21958>.
* guix/scripts/environment.scm (status->exit-code): New procedure.
(exit/status, primitive-exit/status): Use it.
* tests/guix-environment-container.sh: Add test.
| Ludovic Courtès |
2015-11-03 | scripts: environment: Display friendly container error messages....* guix/scripts/environment.scm (assert-container-features): New
procedure.
(guix-environment): Use it.
| David Thompson |
2015-11-02 | scripts: environment: Ignore user shell when spawning container....* guix/scripts/environment.scm (%default-options): Remove 'exec'
association.
(guix-environment): If the user didn't specify a command, use the
default shell, or use /bin/sh when a container is requested.
| David Thompson |
2015-10-30 | scripts: environment: Allow lists of packages in expressions....* guix/scripts/environment.scm (options/resolve-packages): Match against
lists of packages when evaluating expressions.
* tests/guix-environment.sh: Add test.
* doc/guix.texi ("invoking guix environment"): Add docs.
| David Thompson |
2015-10-29 | scripts: environment: Allow mixing regular and ad-hoc packages....This patch changes the --ad-hoc flag to be positional. That is, the
packages that appear before --ad-hoc are interpreted as packages whose
inputs should be in the environment; the packages that appear after are
interpreted as packages to be directly added to the environment.
* guix/scripts/environment.scm (tag-package-arg, compact): New
procedures.
(%options): Tweak the handlers for --load and --expression options.
(options/resolve-packages): Preserve package mode tag.
(parse-args): Tweak argument handler to use package tagging procedure.
(guix-environment): Apply ad-hoc behavior on a per package basis.
* tests/guix-environment.sh: Add test.
* doc/guix.texi ("invoking guix environment"): Document new behavior of
--ad-hoc.
| David Thompson |
2015-10-25 | scripts: environment: Add --container option....* guix/scripts/system.scm (specification->file-system-mapping): Move from
here...
* guix/ui.scm (specification->file-system-mapping): ... to here.
* guix/scripts/enviroment.scm (show-help): Show help for new options.
(%options): Add --container --network, --expose, and --share options.
(%network-configuration-files): New variable.
(launch-environment, launch-environment/container, requisites*,
inputs->requisites): New procedures.
(guix-environment): Spawn new process in a container when requested.
* doc/guix.texi (Invoking guix environment): Document it.
* tests/guix-environment-container.sh: New file.
* Makefile.am (SH_TESTS): Add it.
| David Thompson |
2015-10-09 | scripts: environment: Use system* instead of system....This allows for direct program invokation without needing a shell to act
as a command interpreter.
* guix/scripts/environment.scm (%default-shell): New variable.
(show-help): Adjust description. Remove '--exec' reference.
(%default-options): Use '%default-shell'.
(%options): Adjust '--exec' to run command via the default shell.
(parse-args): New procedure.
(guix-environment): Use 'parse-args'. Use 'system*' instead of
'system'.
* tests/guix-environment.sh: Add test for '--' command invokation.
* doc/guix.texi ("Invoking guix environment"): Use new syntax. Remove
'--exec' documentation.
| David Thompson |
2015-09-18 | Add (guix scripts)....* guix/ui.scm: Add missing copyright lines.
(args-fold*, environment-build-options, %default-argument-handler,
parse-command-line): Move to ...
* guix/scripts.scm: ...here. New file.
* guix/scripts/archive.scm: Use it.
* guix/scripts/build.scm: Likewise.
* guix/scripts/download.scm: Likewise.
* guix/scripts/edit.scm: Likewise.
* guix/scripts/environment.scm: Likewise.
* guix/scripts/gc.scm: Likewise.
* guix/scripts/graph.scm: Likewise.
* guix/scripts/hash.scm: Likewise.
* guix/scripts/import/cpan.scm: Likewise.
* guix/scripts/import/cran.scm: Likewise.
* guix/scripts/import/elpa.scm: Likewise.
* guix/scripts/import/gem.scm: Likewise.
* guix/scripts/import/gnu.scm: Likewise.
* guix/scripts/import/hackage.scm: Likewise.
* guix/scripts/import/nix.scm: Likewise.
* guix/scripts/import/pypi.scm: Likewise.
* guix/scripts/lint.scm: Likewise.
* guix/scripts/package.scm: Likewise.
* guix/scripts/publish.scm: Likewise.
* guix/scripts/pull.scm: Likewise.
* guix/scripts/refresh.scm: Likewise.
* guix/scripts/size.scm: Likewise.
* guix/scripts/system.scm: Likewise.
* tests/ui.scm (with-environment-variable, "parse-command-line",
"parse-command-line and --no options"): Move to ...
* tests/scripts.scm: ...here. New file.
* Makefile.am (MODULES): Add guix/scripts.scm.
(SCM_TESTS): Add tests/scripts.scm.
* po/guix/POTFILES.in: Add guix/scripts.scm.
| Alex Kost |
2015-07-02 | scripts: environment: Return the exit status of the command....* guix/scripts/environment.scm (guix-environment): Return the exit
status of the command.
| Cyril Roelandt |
2015-07-01 | environment: Define 'GUIX_ENVIRONMENT'....* guix/scripts/environment.scm (create-environment): Define 'GUIX_ENVIRONMENT'.
* doc/guix.texi (Invoking guix environment): Document it.
* gnu/system/shadow.scm (default-skeletons): Adjust 'PS1' depending on whether
'GUIX_ENVIRONMENT' is defined.
| Ludovic Courtès |
2015-07-01 | environment: Improve error reporting for '-l'....This fixes two problems:
1. Load errors would print an ugly backtrace.
2. When FILE was an absolute name, 'load' was passed an incorrect file
name.
* guix/scripts/environment.scm (options/resolve-packages): Use 'load*' instead
of 'load'.
| Ludovic Courtès |
2015-07-01 | environment: For --ad-hoc, allow users to specify an output....* guix/scripts/environment.scm (package+propagated-inputs): Add 'output'
parameter. Use it in return value.
(options/resolve-packages): Use 'append-map' instead of 'map'. For 'load'
and 'expression', return all the outputs of the resulting package. For
'package', use 'specification->package+output' instead of
'specification->package'.
(guix-environment): Adjust uses of PACKAGES accordingly.
* doc/guix.texi (Invoking guix environment): Document it.
* tests/guix-environment.sh: Add test for --ad-hoc guile-bootstrap:out.
| Ludovic Courtès |
2015-07-01 | environment: Add --system....* guix/scripts/environment.scm (show-help, %options): Add -s/--system.
(%default-options): Add 'system' pair.
(guix-environment): Pass 'system' value from OPTS to 'lower-inputs'.
* doc/guix.texi (Invoking guix environment): Document it.
| Ludovic Courtès |
2015-07-01 | environment: Add only the specified outputs of the dependencies....Before that, 'guix environment guile' (for instance) would define environment
variables that would refer to the "include" output of Bash, the "debug" output
of libgc, etc., even though these are not listed as inputs in the recipe of
'guile'.
* guix/gexp.scm (lower-inputs): Export.
* guix/scripts/environment.scm (evaluate-input-search-paths): Remove
'derivations' parameter; add 'search-paths'. Expect 'inputs' to be
a list of tuples. Adjust callers.
(create-environment): Remove 'derivations' parameter; add 'search-paths'.
(show-search-paths): Likewise.
(package+propagated-inputs): New procedure.
(packages->transitive-inputs, packages+propagated-inputs): Remove.
(build-inputs): Expect INPUTS to be a list of derivation tuples.
(guix-environment): Compute INPUTS using 'package+propagated-inputs',
'package->bag', and 'bag-transitive-inputs'. Move 'run-with-store' higher.
* tests/guix-environment.sh: Add test with FINDUTILS-BOOT0.
| Ludovic Courtès |
2015-06-11 | environment: Connect to the store after the command line has been parsed....* guix/scripts/environment.scm (guix-environment): Call 'parse-command-line'
outside of 'with-store'. This allows things like --help to run even if the
daemon is not running.
| Ludovic Courtès |
2015-05-28 | guix environment: Add --ad-hoc option....* guix/scripts/environment.scm (%options): Add "ad-hoc" option.
(show-help): Display help for "--ad-hoc".
(packages+propagated-inputs): New procedure.
(guix-environment): Create ad hoc environment when asked.
* doc/guix.texi ("invoking guix environment"): Document it.
| David Thompson |
2015-05-21 | scripts: Move 'set-build-options-from-command-line*' to (guix scripts build) ......* guix/scripts/build.scm (set-build-options-from-command-line*): New
procedure.
* guix/scripts/environment.scm (set-build-options-from-command-line*): Delete.
| David Thompson |
2015-05-21 | ui: Deduplicate 'show-what-to-build*'....* guix/ui.scm (show-what-to-build*): New procedure.
* guix/scripts/environment.scm (show-what-to-build*): Delete.
* guix/scripts/system.scm (show-what-to-build*): Likewise.
* build-aux/make-binary-tarball.scm (show-what-to-build*): Likewise.
| David Thompson |
2015-05-05 | environment: Move iteration outside of 'for-each-search-path'....* guix/search-paths.scm (search-path-definition): New procedure.
* guix/scripts/environment.scm (for-each-search-path): Rename to...
(evaluate-input-search-paths): ... this. Remove 'proc' and 'pure?'
parameters, and return directly the list of search-path/value pairs.
(create-environment): Use 'for-each' and 'evaluate-input-search-paths'
instead of 'for-each-search-path'.
(show-search-paths): Use 'for-each', 'search-path-definition', and
'evaluate-search-paths' instead of 'for-each-search-path'.
| Ludovic Courtès |
2015-05-05 | environment: Use 'evaluate-search-paths'....This allows 'guix environment' to correctly handle non-directory
and/or pattern search-path specifications, such as that for
'XML_CATALOG_FILES'.
* guix/scripts/environment.scm (for-each-search-path): Use
'evaluate-search-paths' instead of 'search-path-as-list' & co.
| Ludovic Courtès |
2015-05-05 | search-paths: Define the 'PATH' environment variable....* guix/search-paths.scm ($PATH): New variable.
* guix/scripts/environment.scm (for-each-search-path): Use it.
| Ludovic Courtès |
2015-05-05 | environment: Use (guix search-paths)....* guix/scripts/environment.scm: Use (guix search-paths). Fixes a
regression introduced in e89431b.
| Ludovic Courtès |