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2021-08-20guix: Add ContentDB importer.Maxime Devos
* guix/import/contentdb.scm: New file. * guix/scripts/import/contentdb.scm: New file. * tests/contentdb.scm: New file. * Makefile.am (MODULES, SCM_TESTS): Register them. * po/guix/POTFILES.in: Likewise. * doc/guix.texi (Invoking guix import): Document it. Signed-off-by: Leo Prikler <leo.prikler@student.tugraz.at>
2021-08-11transformations: 'with-patch' works on non-origin sources.Ludovic Courtès
Fixes <https://issues.guix.gnu.org/49697>. Reported by Philippe Swartvagher <philippe.swartvagher@inria.fr>. * guix/transformations.scm (patched-source): New procedure. (transform-package-patches)[package-with-extra-patches]: Use it when (package-source p) is not an origin. * tests/transformations.scm ("options->transformation, with-commit + with-patch"): New test.
2021-08-12records: Support field sanitizers.Ludovic Courtès
* guix/records.scm (make-syntactic-constructor): Add #:sanitizers. [field-sanitizer]: New procedure. [wrap-field-value]: Honor F's sanitizer. (define-record-type*)[field-sanitizer]: New procedure. Pass #:sanitizer to 'make-syntactic-constructor'. * tests/records.scm ("define-record-type* & sanitize") ("define-record-type* & sanitize & thunked"): New tests.
2021-08-02Reinstate "services: Add a service for Jami."Maxim Cournoyer
This reverts commit 4673f817938d9d2b1b40a072ab2e0c44a32ccc97, which reverted commit 69dcc24c9f0cdfea674eb690e7755d26a25ced2b with the fix detailed below. Thanks to Christopher Baines for reporting the failure and proposing a fix. * guix/self.scm (compiled-guix) [*system-test-modules*]: Add the test data files via the 'extra-files' argument. * gnu/local.mk (dist_patch_DATA): Move the tests/data/jami-dummy-account.dat file to... * gnu/local.mk (MODULES_NOT_COMPILED): ... here.
2021-08-02Revert "services: Add a service for Jami."Maxim Cournoyer
This reverts commit 69dcc24c9f0cdfea674eb690e7755d26a25ced2b. It broke 'guix pull'.
2021-08-02services: Add a service for Jami.Maxim Cournoyer
* gnu/services/telephony.scm (string-or-computed-file?) (string-list?, account-fingerprint-list?): New procedures. (maybe-string-list, maybe-account-fingerprint-list) (maybe-boolean, maybe-string, jami-account-list): New configuration field types. (serialize-string-list, serialize-boolean, serialize-string) (jami-account, jami-account->alist, jami-configuration) (jami-account-list?, jami-account-list-maybe): New procedures. (%jami-accounts): New variable. (jami-configuration->command-line-arguments): New procedure. (jami-dbus-session-activation, jami-shepherd-services): New procedures. (jami-service-type): New variable. * gnu/build/jami-service.scm: New file. * gnu/tests/data/jami-dummy-account.dat: Likewise. * gnu/tests/telephony.scm: Likewise. * gnu/local.mk (GNU_SYSTEM_MODULES): Register them. * Makefile.am (SCM_TESTS): Register the test file. (dist_patch_DATA): Register the new data file. * doc/guix.texi (Telephony Services): Document it.
2021-07-20import: hackage: Emit new-style package inputs.Sarah Morgensen
* guix/import/hackage.scm (hackage-module->sexp)[dependencies] [native-dependencies]: Make into a list of symbols. [maybe-inputs]: Wrap INPUTS in 'list' instead of 'quasiquote'. * tests/hackage.scm (match-ghc-foo) (match-ghc-foo-6) (match-ghc-foo-revision) (match-ghc-foo-import): Adjust accordingly. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-07-20import: opam: Emit new-style package inputs.Sarah Morgensen
* guix/import/opam.scm (opam->guix-package): Wrap INPUTS and NATIVE-INPUTS in 'list' instead of 'quasiquote'. (dependency-list->inputs): Return a list of symbols. * tests/opam.scm ("opam->guix-package"): Adjust accordingly. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-07-20import: gem: Emit new-style package inputs.Sarah Morgensen
* guix/import/gem.scm (make-gem-sexp): Wrap inputs in 'list' instead of 'quasiquote'. * tests/gem.scm ("gem->guix-package") ("gem-recursive-import"): Adjust accordingly. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-07-20import: egg: Emit new-style package inputs.Sarah Morgensen
* guix/import/egg.scm (egg->guix-package): Generate dependency list from a list of symbols. [egg-parse-dependency]: Return a list of symbols. [maybe-inputs]: Wrap INPUTS in 'list' instead of 'quasiquote'. * tests/egg.scm (match-chicken-foo): Adjust accordingly. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-07-18Merge branch 'master' into core-updatesLudovic Courtès
2021-07-18pack: Streamline how files are included in tarballs.Maxim Cournoyer
Thanks to Guillem Jover <guillem@debian.org> on the OFTC's #debian-dpkg channel for helping with troubleshooting. Letting GNU Tar recursively walk the complete files hierarchy side-steps the risks associated with providing a list of file names: 1. Duplicated files in the archive (recorded as hard links by GNU Tar) 2. Missing parent directories. The above would cause dpkg to malfunction, for example by aborting early and skipping triggers when there were missing parent directories. * guix/scripts/pack.scm (self-contained-tarball/builder): Do not call POPULATE-SINGLE-PROFILE-DIRECTORY, which creates extraneous files such as /root. Instead, call POPULATE-STORE and INSTALL-DATABASE-AND-GC-ROOTS individually to more precisely generate the file system. Replace the list of files by the current directory, "." and streamline the way options are passed. * gnu/system/file-systems.scm (reduce-directories): Remove procedure. * tests/file-systems.scm ("reduce-directories"): Remove test.
2021-07-18pack: Allow embedding custom control files in deb packs.Maxim Cournoyer
* guix/scripts/pack.scm (self-contained-tarball/builder) [extra-options]: New argument. (self-contained-tarball, squashfs-image, docker-image) (debian-archive): Likewise. Remove two TODO comments. Document EXTRA-OPTIONS. Use the custom control files when provided. (%deb-format-options): New variable. (show-deb-format-options, show-deb-format-options/detailed): New procedures. (%options): Register new options. (show-help): Augment with new usage. (guix-pack): Validate and propagate new argument values. * doc/guix.texi (Invoking guix pack)[deb]: Document how to list advanced options. Add an example. * tests/pack.scm (deb archive...): Provide extra-options to the debian-archive procedure, and validate that the provided files are embedded in the pack.
2021-07-18import: go: Upgrade go.mod parser.Sarah Morgensen
Upgrade the go.mod parser to handle the full go.mod spec, and to gracefully handle unexpected/malformed syntax. Restructure parser usage, making the parse tree available for other uses. guix/import/go.scm (parse-go.mod): Parse using (ice-9 peg) instead of regex matching for more robustness. Return a list of directives. (go.mod-directives): New procedure. (go.mod-requirements): Likewise. (go-module->guix-package): Use it. (%go.mod-replace-directive-rx): Remove unused variable. tests/go.scm (testing-parse-mod): Adjust accordingly. (go.mod-requirements) (fixture-go-mod-unparseable) (fixture-go-mod-retract) (fixture-go-mod-strings): New variables. ("parse-go.mod: simple") ("parse-go.mod: comments and unparseable lines") ("parse-go.mod: retract") ("parse-go.mod: raw strings and quoted strings") ("parse-go.mod: complete"): New tests. Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
2021-07-17tests/go: Remove unused variable.Maxim Cournoyer
* tests/go.scm: Delete extraneous newline. (fixture-latest-for-go-check): Remove variable.
2021-07-14packages: Define this-package-input and this-package-native-input.Maxime Devos
These macros are intended to be used in build phases. More precisely, (assoc-ref %build-inputs "input") can be replaced by #$(this-package-input "input") or #+(this-package-native-input "native-input") as appropriate. * guix/packages.scm (package-input, package-native-input): New (unexported) procedures. (this-package-input, this-package-native-input): New macros. Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
2021-07-14utils: Define a target-x86-32? and target-x86-64? predicate.Maxime Devos
* guix/utils.scm (target-x86-32?, target-x86-64?): New predicates. * tests/utils.scm ("target-x86-32?", "target-x86-64?"): New tests. Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
2021-07-14utils: Define 'target-linux?' predicate.Maxime Devos
* guix/utils.scm (target-linux?): New predicate. * tests/utils.scm ("target-linux?"): Test it. ("target-mingw?"): Also test ‘target-mingw?’. Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
2021-07-13lint: Check for leading whitespace in description.Brice Waegeneire
* guix/lint.scm (check-description-style): Check for leading whitespace. * tests/lint.scm: ("description: leading whitespace"): New test.
2021-07-11import: print: Emit new-style package inputs when possible.Ludovic Courtès
* guix/import/print.scm (redundant-input-labels?): New procedure. (package->code)[package-lists->code]: Rename to... [inputs->code]: ... this. When 'redundant-input-labels?' returns true, emit label-less inputs. Adjust callers to new name. * tests/print.scm (pkg-with-inputs): Adjust accordingly.
2021-07-11import: cran: Emit new-style package inputs.Ludovic Courtès
* guix/import/cran.scm (format-inputs): Emit symbols or 'specification->package' calls. (maybe-inputs): Wrap in 'list' instead of 'quasiquote'. * tests/cran.scm ("description->package"): Adjust accordingly.
2021-07-11import: pypi: Emit new-style package inputs.Ludovic Courtès
* guix/import/pypi.scm (maybe-inputs): Wrap PACKAGE-INPUTS in 'list' instead of 'quasiquote'. (compute-inputs)[requirement->package-name/sort]: Return a list of symbols. * tests/pypi.scm ("pypi->guix-package, no wheel") ("pypi->guix-package, wheels"): Adjust accordingly.
2021-07-11Add 'guix style'.Ludovic Courtès
* guix/scripts/style.scm, tests/style.scm: New files. * Makefile.am (MODULES, SCM_TESTS): Add them. * po/guix/POTFILES.in: Add 'guix/scripts/style.scm'. * doc/guix.texi (Invoking guix style): New node. (package Reference): Reference it. (Invoking guix lint): Likewise.
2021-07-11lint: Add 'input-labels' checker.Ludovic Courtès
* guix/lint.scm (check-input-labels): New procedure. (%local-checkers): Add 'input-labels' checker. * tests/lint.scm ("input labels: no warnings") ("input labels: one warning"): New tests. * doc/guix.texi (Invoking guix lint): Mention it.
2021-07-11packages: Allow inputs to be plain package lists.Ludovic Courtès
* guix/packages.scm (add-input-label, sanitize-inputs): New procedures. (<package>)[inputs, propagated-inputs, native-inputs]: Add 'sanitize' property. * doc/guix.texi (Defining Packages, package Reference): (Defining Package Variants): Adjust examples accordingly. * tests/packages.scm ("transaction-upgrade-entry, zero upgrades, propagated inputs") ("transaction-upgrade-entry, grafts") ("package-transitive-inputs") ("package-transitive-supported-systems") ("package-closure") ("supported-package?") ("package-derivation, inputs deduplicated") ("package-transitive-native-search-paths") ("package-grafts, indirect grafts") ("package-grafts, indirect grafts, propagated inputs") ("package-grafts, same replacement twice") ("package-grafts, dependency on several outputs") ("replacement also grafted") ("package->bag, sensitivity to %current-target-system") ("package->bag, propagated inputs") ("package->bag, sensitivity to %current-system") ("package-input-rewriting/spec, identity") ("package-input-rewriting, identity"): Use the label-less input style.
2021-07-11records: Support field sanitizers.Ludovic Courtès
* guix/records.scm (make-syntactic-constructor): Add #:sanitizers. [field-sanitizer]: New procedure. [wrap-field-value]: Honor F's sanitizer. (define-record-type*)[field-sanitizer]: New procedure. Pass #:sanitizer to 'make-syntactic-constructor'. * tests/records.scm ("define-record-type* & sanitize") ("define-record-type* & sanitize & thunked"): New tests.
2021-07-11environment: Adjust to earlier 'gcc-bootstrap' search paths changes.Ludovic Courtès
This is a followup to fe6775f52b7f28a5bf74633ea4737c32a64b7e05. * tests/guix-environment.sh: Expect C_INCLUDE_PATH rather than CPATH in environment containing 'gcc-bootstrap'.
2021-07-11pack: Adjust test to earlier <compressor> changes.Ludovic Courtès
This is a followup to 5a0997ef7f3968d216328b8c63a6e36dd29a5ab8, which broke the "self-contained tarball" test. * tests/pack.scm (%gzip-compressor): Add 'list' in third field.
2021-07-07lint: Lint usages of 'wrap-program' without a "bash" input.Maxime Devos
When using 'wrap-program', "bash" (or "bash-minimal") should be in inputs. Otherwise, when cross-compiling, 'wrap-program' will use a native bash instead of the cross bash and the 'patch-shebangs' won't be able to correct this. Tobias Geerinckx-Rice is added to the copyright lines because a part of the "straw-viewer" package definition is included. This linter detects 365 problematic package definitions at time of writing. * guix/lint.scm (report-wrap-program-error): New procedure. (check-wrapper-inputs): New linter. (%local-checkers)[wrapper-inputs]: Add the new linter. ("explicit #:sh argument to 'wrap-program' is acceptable") ("'check-wrapper-inputs' detects 'wrap-program' without \"bash\" in inputs") ("'check-wrapper-inputs' detects 'wrap-qt-program' without \"bash\" in inputs") ("\"bash\" in 'inputs' satisfies 'check-wrapper-inputs'") ("\"bash-minimal\" in 'inputs' satisfies 'check-wrapper-inputs'") ("'cut' doesn't hide bad usages of 'wrap-program'") ("bogus phase specifications don't crash the linter"): New tests. Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
2021-07-05tests: Fix typo in 'tests/store.scm'.Ludovic Courtès
This typo had always been there since the test was introduced in commit ce72c780746776a86f59747f5eff8731cb4ff39b. Presumably, it became visible with 9e5812ac59b01ff011ec0c5b0f437dfe85d6fcc7, where caching was no longer global and thus the 'store' argument of 'package-derivation' was actually being used. * tests/store.scm ("current-build-output-port, UTF-8"): Refer to '%store' rather than 's' in 'package-derivation' call.
2021-07-05tests: Adjust Python "sanity" check tests.Ludovic Courtès
This is a followup to 09448c0994390697e876db235a3b773311795238. The 'check-build-failure' procedure would not actually check anything since it did not call 'build-derivations'. However, it was throwing an exception for unrelated reasons, so the tests would pass. * tests/builders.scm (check-build-failure): Use 'guard' instead of 'false-if-exception'. Call 'build-derivations' to actually check for build failures.
2021-07-01packages: 'package-derivation' honors 'system' again.Ludovic Courtès
Fixes a regression introduced in 7d873f194ca69d6096d28d7a224ab78e83e34fe1. Starting from 7d873f194ca69d6096d28d7a224ab78e83e34fe1, running guix build -s aarch64-linux sed on an x86_64-linux machine would return an x86_64-linux machine, whereby only the top derivation of the graph would be aarch64-linux while all its dependencies would be x86_64-linux. * guix/packages.scm (expand-input): Add 'system' parameter and honor it. (bag->derivation, bag->cross-derivation): Pass SYSTEM to 'expand-input'. * tests/packages.scm ("package-derivation, different system"): New test.
2021-06-30lint: Verify if #:tests? is respected in the 'check' phase.Maxime Devos
There have been a few patches to the mailing list lately not respecting this, and this linter detects 630 package definitions that could be modified to support the --without-tests package transformation. * guix/lint.scm (check-optional-tests): New linter. (%local-checkers)[optional-tests]: Add it. * tests/lint.scm (package-with-phase-changes): New procedure. ("optional-tests: no check phase") ("optional-tests: check hase respects #:tests?") ("optional-tests: check phase ignores #:tests?") ("optional-tests: do not crash when #:phases is invalid") ("optional-tests: allow G-exps (no warning)") ("optional-tests: allow G-exps (warning)") ("optional-tests: complicated 'check' phase") ("optional-tests: 'check' phase is not first phase"): New tests. Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
2021-06-30guix: gexp: Define gexp->approximate-sexp.Maxime Devos
It will be used in the 'optional-tests' linter. * guix/gexp.scm (gexp->approximate-sexp): New procedure. * tests/gexp.scm ("no references", "unquoted gexp", "unquoted gexp (native)") ("spliced gexp", "unspliced gexp, approximated") ("unquoted gexp, approximated"): Test it. * doc/gexp.scm ("G-Expressions"): Document it. Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
2021-06-29pack: Add support for the deb format.Maxim Cournoyer
* .dir-locals.el (scheme-mode)[gexp->derivation]: Define indentation rule. * guix/scripts/pack.scm (debian-archive): New procedure. (%formats): Register the new deb format. (show-formats): Add it to the usage string. * tests/pack.scm (%ar-bootstrap): New variable. (deb archive with symlinks): New test. * doc/guix.texi (Invoking guix pack): Document it. * NEWS: Add news entry.
2021-06-29tests: pack: Fix compressor extension.Maxim Cournoyer
* tests/pack.scm (%gzip-compressor): Add the missing leading period to the gzip compressor file extension.
2021-06-29pack: Prevent duplicate files in tar archives.Maxim Cournoyer
Tar translate duplicate files in the archive into hard links. These can cause problems, as not every tool support them; for example dpkg doesn't. * gnu/system/file-systems.scm (reduce-directories): New procedure. (file-prefix?): Lift the restriction on file prefix. The procedure can be useful for comparing relative file names. Adjust doc. (file-name-depth): New procedure, extracted from ... (btrfs-store-subvolume-file-name): ... here. * guix/scripts/pack.scm (self-contained-tarball/builder): Use reduce-directories. * tests/file-systems.scm ("reduce-directories"): New test.
2021-06-29services: configuration: Allow specifying prefix for serializer names.Xinglu Chen
Sometimes two configurations might have the same types for their field values, but the values might be serialized in two completely different ways (e.g. because the two programs have different configuration languages). An example of this would be the ‘serialize-boolean’ procedure in (gnu services mail) and (gnu services getmail). They both serialize a boolean value, but because the Dovecot’s configuration language has a different syntax to the configuration language for Getmail, two different procedures have to be defined. One way to workaround this would be to specify custom serializers for many fields in order to separate the serialization of the values that have the same type but serialize in different ways. This could get very tedious, especially if there are many configurations in the same module. Another way would be to move one of the configurations to its own module, like what was done with (gnu services getmail). However, this would mean that there would be multiple modules containing configurations for related programs, e.g. we have (gnu services mail) and (gnu services getmail), it doesn’t make much sense to keep the Getmail configuration in its own module. This patch will allow one to write something like this: (define-configuration foo-configuration (bar (string "bob") "Option bar.") (prefix bar-)) and the value of the ‘bar’ field would be serialized using a procedure named ‘bar-serialize-string’ instead of just ‘serialize-string’. * gnu/services/configuration.scm (define-maybe-helper): Accept ‘prefix’ argument for using serializer with custom prefix. (define-maybe): Pattern match on ‘prefix’ literal. (define-configuration-helper): Accept ‘prefix’ argument for using serializer with custom prefix. (define-configuration): Pattern match on ‘prefix’ literal. * tests/services/configuration.scm ("serialize-configuration with prefix"): New test. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-06-25import: hackage: Support "common" field and importsPhilip Munksgaard
Fixes <https://issues.guix.gnu.org/48701>. * guix/import/cabal.scm (make-cabal-parser): Modify. (is-common): New variable. (lex-common): New procedure. (is-id): Modify. (eval-cabal): Modify. * tests/hackage.scm ("hackage->guix-package test cabal import") New test. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-06-23tests: gremlin: Skip file-needed/recursive if DT_NEEDED is empty.Chris Marusich
* tests/gremlin.scm (file-needed/recursive): Skip the test when (file-runpath %guile-executable) evaluates to the empty list. This causes the test to be correctly skipped in the case where Guix has been built using a foreign distro's toolchain and libraries.
2021-06-23Merge branch 'master' into core-updatesTobias Geerinckx-Rice
Conflicts: gnu/packages/cups.scm gnu/packages/python-web.scm gnu/packages/web.scm guix/build/maven/pom.scm
2021-06-22profiles: Build union of inputs in the right order.Ludovic Courtès
Fixes <https://bugs.gnu.org/49102>. Reported by Mathieu Othacehe <othacehe@gnu.org> and Tobias Geerinckx-Rice <me@tobias.gr>. Fixes a regression introduced in 8cef92d0633850d97c1a1d4521812268f56672be, whereby in case of file collisions, the "wrong" one would take precedence. * guix/build/profiles.scm (manifest-sexp->inputs+search-paths): Perform a breadth-first traversal. Reverse INPUTS and SEARCH-PATHS in the base case. * tests/profiles.scm ("profile-derivation, ordering & collisions"): New test.
2021-06-19Merge branch 'master' into core-updatesMarius Bakke
Note: this merge actually changes the 'curl' and 'python-attrs' derivations, as part of solving caf4a7a2770ef4d05a6e18f40d602e51da749ddc and 12964df69a99de6190422c752fef65ef813f3b6b respectively. 4604d43c0e (gnu: gnutls@3.6.16: Fix cross-compilation.) was ignored because it cannot currently be tested. Conflicts: gnu/local.mk gnu/packages/aidc.scm gnu/packages/boost.scm gnu/packages/curl.scm gnu/packages/nettle.scm gnu/packages/networking.scm gnu/packages/python-xyz.scm gnu/packages/tls.scm
2021-06-18profiles: Add 'load-profile'.Ludovic Courtès
* guix/profiles.scm (%precious-variables): New variable. (purify-environment, load-profile): New procedures. * guix/scripts/environment.scm (%precious-variables) (purify-environment, create-environment): Remove. (launch-environment): Call 'load-profile' instead of 'create-environment'. * tests/profiles.scm ("load-profile"): New test.
2021-06-08lint: Check for trailing whitespace in description.Xinglu Chen
* guix/lint.scm (check-description-style): Check for trailing whitespace. * tests/lint.scm: ("description: trailing whitespace"): New test. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-06-08lint: Check for trailing whitespace in synopsis.Xinglu Chen
* guix/lint.scm (check-synopsis-style): Check for trailing whitespace. * tests/lint.scm ("synopsis: contains trailing whitespace"): New test. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-06-08store: Remove 'references/substitutes'.Ludovic Courtès
This procedure lost its only user in commit 710854304b1ab29332edcb76f3de532e0724c197. * guix/store.scm (references/substitutes): Remove. * tests/store.scm ("references/substitutes missing reference info") ("references/substitutes with substitute info"): Remove.
2021-06-06Merge branch 'master' into core-updatesMarius Bakke
Conflicts: gnu/local.mk gnu/packages/algebra.scm gnu/packages/bioinformatics.scm gnu/packages/curl.scm gnu/packages/docbook.scm gnu/packages/emacs-xyz.scm gnu/packages/maths.scm gnu/packages/plotutils.scm gnu/packages/python-web.scm gnu/packages/python-xyz.scm gnu/packages/radio.scm gnu/packages/readline.scm gnu/packages/tls.scm gnu/packages/xml.scm gnu/packages/xorg.scm
2021-06-06lint: tests-true: Check if tests are enabled when cross-compiling.Maxime Devos
* guix/lint.scm (check-tests-true): New linter. (%local-checkers)[tests-true]: Add it. * tests/lint.scm ("tests-true: #:tests? must not be set to #t") ("tests-true: absent #:tests? is acceptable") ("tests-true: #:tests? #f is acceptable") ("tests-true: #:tests? #t acceptable when compiling natively"): Test it. Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
2021-06-04utils: Define ‘search-input-file’ procedure.Maxime Devos
The procedure ‘which’ from (guix build utils) is used for two different purposes: 1. for finding the absolute file name of a binary that needs to run during the build process 2. for finding the absolute file name of a binary, for the target system (as in --target=TARGET), e.g. for substituting sh->/gnu/store/.../bin/sh, python->/gnu/store/.../bin/python. When compiling natively (target=#f in Guix parlance), this is perfectly fine. However, when cross-compiling, there is a problem. "which" looks in $PATH for binaries. That's good for purpose (1), but incorrect for (2), as the $PATH contains binaries from native-inputs instead of inputs. This commit defines a ‘search-input-file’ procedure. It functions like 'which', but instead of searching in $PATH, it searches in the 'inputs' of the build phase, which must be passed to ‘search-input-file’ as an argument. Also, the file name must include "bin/" or "sbin/" as appropriate. * guix/build/utils.scm (search-input-file): New procedure. * tests/build-utils.scm ("search-input-file: exception if not found") ("search-input-file: can find if existent"): Test it. * doc/guix.texi (File Search): Document it. Partially-Fixes: <https://issues.guix.gnu.org/47869> Co-Authored-By: Ludovic Courtès <ludo@gnu.org> Signed-off-by: Ludovic Courtès <ludo@gnu.org>