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2021-10-25profiles: Add 'package->development-manifest'.Ludovic Courtès
* guix/profiles.scm (package->development-manifest): New procedure. * guix/scripts/environment.scm (input->manifest-entry) (package-environment-inputs): Remove. * guix/scripts/environment.scm (options/resolve-packages): Use 'package->development-manifest' instead of 'package-environment-inputs'. * tests/profiles.scm ("package->development-manifest"): New test.
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.
2021-06-18profiles: 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.
2021-02-01profiles: Add 'manifest->code'.Ludovic Courtès
* guix/profiles.scm (manifest->code): New procedure. * tests/profiles.scm ("manifest->code, simple") ("manifest->code, simple, versions") ("manifest->code, transformations"): New tests.
2020-12-07profiles: Delete duplicate manifest entries in packages->manifest.Leo Prikler
* gnu/profiles.scm (packages->manifest): Delete duplicate entries. * tests/profiles.scm ("packages->manifest, no duplicates"): New test. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2020-12-07profiles: Remove duplicates in manifest transactions.Leo Prikler
Fixes <https://bugs.gnu.org/23874>. Reported by Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de>. * guix/profiles.scm (manifest-transaction-effects): Delete duplicates in install and remove. Let multiple upgrades and downgrades shadow previous transactions of the same kind. * tests/profiles.scm ("manifest-transaction-effects no double install or upgrades") ("manifest-transaction-effects no double downgrade") ("manifest-transaction-effects no double removal"): New tests. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2020-04-26profiles: Add lowerable <profile> record type.Ludovic Courtès
* guix/profiles.scm (<profile>): New record type. * tests/profiles.scm ("<profile>"): New test.
2019-11-22profiles: Add 'concatenate-manifests'.Ludovic Courtès
* guix/profiles.scm (concatenate-manifests): New procedure. * tests/profiles.scm ("concatenate-manifests"): New test.
2019-06-14tests: Make builds less expensive.Ludovic Courtès
The switch to the reduced bootstrap broke build time assumptions made by tests, notably the assumption that GNU-MAKE-BOOT0 was cheap to build. This commit adjusts this to make these tests cheaper. * gnu/packages/bootstrap.scm (%bootstrap-inputs-for-tests): New variable. * guix/tests.scm (gnu-make-for-tests): New variable. * tests/guix-environment.sh: Use GNU-MAKE-FOR-TESTS instead of GNU-MAKE-BOOT0. Remove test with FINDUTILS-BOOT0. * tests/guix-package-net.sh (boot_make): Use GNU-MAKE-FOR-TESTS. * tests/packages.scm ("GNU Make, bootstrap"): Likewise. * tests/profiles.scm ("profile-derivation relative symlinks, two entries"): Likewise. * tests/union.scm (%bootstrap-inputs): Remove. ("union-build"): Use %BOOTSTRAP-INPUTS-FOR-TESTS instead of %BOOTSTRAP-INPUTS.
2019-02-07profiles: Raise an error for unmatched patterns.Ludovic Courtès
Previously, "guix package -r something-not-installed" would silently complete. Now an error is raised. * guix/profiles.scm (&unmatched-pattern-error): New condition type. (manifest-matching-entries): Rewrite to raise an error when one of PATTERNS is not matched. * guix/ui.scm (call-with-error-handling): Handle 'unmatched-pattern-error?'. * tests/guix-package.sh: Add test. * tests/profiles.scm ("manifest-matching-entries"): Don't try to remove unmatched pattern. ("manifest-matching-entries, no match"): New test. ("manifest-transaction-effects"): Remove 'remove' field.
2019-01-20profiles: Allow a profile to be added as an entry of another profile.Ludovic Courtès
* guix/build/profiles.scm (build-etc/profile): When 'OUTPUT/etc/profile' already exists, delete it first. (build-profile): Likewise for 'OUTPUT/manifest'. * tests/profiles.scm ("profile in profile"): New test.
2019-01-20tests: Adjust to python.scm split.Ludovic Courtès
This is a followup to 44d10b1f722856ab8e9b942804aa7ef33e2ef739. * tests/profiles.scm ("package->manifest-entry, search paths"): Adjust module name for PYTHON2-MATPLOTLIB.
2018-11-12tests: Add 'test-assertm' to (guix tests).Ludovic Courtès
* guix/tests.scm (test-assertm): New macro. * tests/gexp.scm (test-assertm): Remove. * tests/profiles.scm (test-assertm): Remove. * tests/challenge.scm (%store, test-assertm): Remove. * tests/debug-link.scm (%store, test-assertm): Remove. * tests/size.scm (%store, test-assertm): Remove.
2018-09-11profiles: Correctly deal with etc/ being a relative symlink.Ludovic Courtès
Fixes <https://bugs.gnu.org/32686>. Reported by Oleg Pykhalov <go.wigust@gmail.com>. * guix/build/profiles.scm (ensure-writable-directory): Add #:symlink. [absolute?]: New procedure. [unsymlink]: Use it to determine how to resolve readlink's result. (build-profile): Pass SYMLINK to 'ensure-writable-directory'. * tests/profiles.scm ("profile-derivation when etc/ is a relative symlink"): New test.
2018-05-17Merge branch 'master' into core-updatesMark H Weaver
2018-05-10profiles: Optionally use relative file names for symlink targets.Ludovic Courtès
* guix/build/union.scm (symlink-relative): New procedure. * guix/build/profiles.scm: Re-export it. (build-profile): Add #:symlink and pass it to 'union-build'. * guix/profiles.scm (profile-derivation): Add #:relative-symlinks?. Pass #:symlink to 'build-profile'. * tests/profiles.scm ("profile-derivation relative symlinks, one entry") ("profile-derivation relative symlinks, two entries"): New tests.
2018-05-08guix: Separate the package name and version with "@", not "-".Chris Marusich
* guix/packages.scm (package-full-name): By default, use "@" to separate the package name and package version. Add an optional delimiter argument so that there is still a way to explicitly use a different delimiter. * gnu/packages/commencement.scm (gcc-boot0) <unpack-gmp&co>: Adjust accordingly. * tests/graph.scm: Adjust accordingly. * tests/profiles.scm: Adjust accordingly. * NEWS: Mention the change. Fixes: <https://bugs.gnu.org/31088>. Reported by Pierre Neidhardt <ambrevar@gmail.com>.
2018-03-27tests: Use invoke and return #t from all builders.Mark H Weaver
* tests/packages.scm ("package-source-derivation, snippet", "trivial") ("trivial with local file as input", "trivial with source") ("trivial with system-dependent input", "trivial with #:allowed-references") ("--search-paths with pattern", "--search-paths with single-item search path") ("replacement also grafted"): In the builders, raise an exception on errors and otherwise return #t. Use invoke.
2018-03-01profiles: 'manifest-add' truly deletes duplicate entries.Ludovic Courtès
Fixes <https://bugs.gnu.org/30569>. Reported by Andreas Enge <andreas@enge.fr>. * guix/profiles.scm (manifest-add): Don't append ENTRIES as is. Instead, cons each element of ENTRIES as we fold over it. Remove unneeded ellispes in 'match' patterns.
2017-06-26profiles: Add 'manifest-transaction-removal-candidate?'.Ludovic Courtès
* guix/profiles.scm (manifest-transaction-removal-candidate?): New procedure. * tests/profiles.scm ("manifest-transaction-removal-candidate?"): New test.
2017-06-21profiles: Catch and report collisions in the profile.Ludovic Courtès
* guix/profiles.scm (&profile-collision-error): New error condition. (manifest-transitive-entries, manifest-entry-lookup, lower-manifest-entry) (check-for-collisions): New procedures. (profile-derivation): Add call to 'check-for-collisions'. * guix/ui.scm (call-with-error-handling): Handle '&profile-collision-error'. * tests/profiles.scm ("collision", "collision of propagated inputs") ("no collision"): New tests.
2017-06-21profiles: Manifest entries keep a reference to their parent entry.Ludovic Courtès
* guix/profiles.scm (<manifest-entry>)[parent]: New field. (package->manifest-entry): Add #:parent parameter. Fill out the 'parent' field of <manifest-entry>; pass #:parent in recursive calls. * guix/profiles.scm (sexp->manifest)[sexp->manifest-entry]: New procedure. Use it for version 3. * tests/profiles.scm ("manifest-entry-parent"): New procedure. ("read-manifest")[entry->sexp]: Add 'manifest-entry-parent' to the result.
2017-06-21profiles: Represent propagated inputs as manifest entries.Ludovic Courtès
* guix/profiles.scm (package->manifest-entry): Turn DEPS into a list of manifest entries. (manifest->gexp)[entry->gexp]: Call 'entry->gexp' on DEPS. Bump version to 3. (sexp->manifest)[infer-dependency]: New procedure. Use it for versions 1 and 2. Parse version 3. (manifest-inputs)[entry->gexp]: New procedure. Adjust to 'dependencies' being a list of <manifest-entry>. * tests/profiles.scm ("packages->manifest, propagated inputs") ("read-manifest"): New fields.
2017-05-18union: Gracefully handle dangling symlinks in the input.Ludovic Courtès
Fixes <http://bugs.gnu.org/26949>. Reported by Pjotr Prins <pjotr.public12@thebird.nl>. * guix/build/union.scm (file-is-directory?): Return #f when FILE does not exist or is a dangling symlink. (file=?): Pass #f as a second argument to 'stat'; return #f when both ST1 or ST2 is #f. * tests/profiles.scm (test-equalm): New macro. ("union vs. dangling symlink"): New test.
2017-03-17profiles: Packages in a profile can be cross-compiled.Ludovic Courtès
* guix/profiles.scm (profile-derivation): Add #:target parameter; pass it to 'gexp->derivation'. * tests/profiles.scm ("profile-derivation, cross-compilation"): New test.
2016-12-17profiles: Remove dependency on 'glibc-utf8-locales' for tests.Ludovic Courtès
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.
2016-09-06profiles: Add manifest-transaction helper procedures.Ludovic Courtès
* guix/profiles.scm (manifest-transaction-install-entry) (manifest-transaction-remove-pattern) (manifest-transaction-null?): New procedures. * tests/profiles.scm ("manifest-transaction-null?"): New test.
2016-07-26profiles: Output in 'package->manifest-entry' defaults to "out".Ludovic Courtès
Fixes <http://bugs.gnu.org/24029>. Reported by Dylan Jeffers <sapientech@openmailbox.org>. * guix/profiles.scm (package->manifest-entry): Change #:output to default to "out". (packages->manifest): Add 'package?' in second 'match' clause. * tests/profiles.scm ("package->manifest-entry defaults to \"out\""): New test.
2016-04-03build: Add a Guile custom test driver using SRFI-64.Mathieu Lirzin
Before that '.log' files for scheme tests were fragmented and not included in test-suite.log. This unifies the semantics of SRFI-64 API with Automake test suite. * build-aux/test-driver.scm: New file. * Makefile.am (SCM_LOG_DRIVER, AM_SCM_LOG_DRIVER_FLAGS): New variables. (SCM_LOG_COMPILER, AM_SCM_LOG_FLAGS): Delete variables. (AM_TESTS_ENVIRONMENT): Set GUILE_AUTO_COMPILE to 0. * test-env.in: Silence guix-daemon. * doc/guix.texi (Running the Test Suite): Describe how to display the detailed results. Bug reports require only 'test-suite.log' file. * tests/base32.scm, tests/build-utils.scm, tests/builders.scm, tests/challenge.scm, tests/cpan.scm, tests/cpio.scm, tests/cran.scm, tests/cve.scm, tests/derivations.scm, tests/elpa.scm, tests/file-systems.scm, tests/gem.scm, tests/gexp.scm, tests/gnu-maintenance.scm, tests/grafts.scm, tests/graph.scm, tests/gremlin.scm, tests/hackage.scm, tests/hash.scm, tests/import-utils.scm, tests/lint.scm, tests/monads.scm, tests/nar.scm, tests/packages.scm, tests/pk-crypto.scm, tests/pki.scm, tests/profiles.scm, tests/publish.scm, tests/pypi.scm, tests/records.scm, tests/scripts-build.scm, tests/scripts.scm, tests/services.scm, tests/sets.scm, tests/size.scm, tests/snix.scm, tests/store.scm, tests/substitute.scm, tests/syscalls.scm, tests/system.scm, tests/ui.scm, tests/union.scm, tests/upstream.scm, tests/utils.scm: Don't exit at the end of test groups. * tests/containers.scm: Likewise. Use 'test-skip' instead of exiting with error code 77.
2016-03-06tests: Disable grafting by default for most tests.Ludovic Courtès
This allows tests to run as expected even in the presence of replacements among the bootstrap packages, such as Perl (commit d8173f21f7b4e3cb83541b8fa70621d2b6d4ce1c). * tests/cpan.scm: Add (%graft? #f). * tests/derivations.scm: Likewise. * tests/graph.scm: Likewise. * tests/monads.scm: Likewise. * tests/profiles.scm: Likewise. * tests/gexp.scm: Likewise. ("gexp->derivation vs. grafts"): Explicitly reenable grafting before, and disable it after, using 'set-grafting'.
2015-12-20profiles: Honor search paths of propagated inputs.Ludovic Courtès
Fixes <http://bugs.gnu.org/22073>. Reported by Federico Beffa <beffa@ieee.org>. * guix/profiles.scm (package->manifest-entry): Use 'package-transitive-native-search-paths' when computing 'search-paths' field. * tests/profiles.scm ("package->manifest-entry, search paths"): New test.
2015-05-18profiles: Gracefully deal with packages containing an etc/ symlink.Ludovic Courtès
This fixes a bug whereby 'guix package -i gcc-toolchain' would fail in 'build-profile'. This is because in 'gcc-toolchain', etc/ is a symlink, and so the 'scandir' call in 'unsymlink' would return #f instead of returning a list. Reported by Andreas Enge <andreas.enge@inria.fr>. * guix/build/profiles.scm (ensure-writable-directory)[unsymlink]: Append "/" to TARGET before calling 'scandir'. * tests/profiles.scm ("etc/profile when etc/ is a symlink"): New test.
2015-05-08profiles: Ensure the profile's etc/ directory is writable.Ludovic Courtès
Reported by 宋文武 <iyzsong@gmail.com>. * guix/build/profiles.scm (build-etc/profile, ensure-writable-directory): New procedures. (build-profile): Use them. * tests/profiles.scm ("etc/profile when etc/ already exists"): New test.
2015-05-06tests: Fix etc/profile test.Taylan Ulrich Bayırlı/Kammer
* tests/profiles.scm ("etc/profile"): Unset GUIX_PROFILE before sourcing etc/profile. Use '.' instead of 'source' for sourcing. Call 'echo $PATH' instead of using the output of 'set' to determine whether PATH is set.
2015-05-06profiles: Generate an 'etc/profile' file.Ludovic Courtès
Suggested by 宋文武 <iyzsong@gmail.com> in <http://bugs.gnu.org/20255>. * guix/build/profiles.scm (abstract-profile, write-environment-variable-definition): New procedures. (build-profile): Add #:search-paths parameter. Create OUTPUT/etc/profile. * guix/profiles.scm (profile-derivation)[builder]: Add 'search-paths' variable and pass it to 'build-profile'. Adjust #:modules argument. * tests/profiles.scm ("etc/profile"): New test. * doc/guix.texi (Invoking guix package): Mention etc/profile.
2015-05-02profiles: Store search paths in manifests.Ludovic Courtès
Discussed in <http://bugs.gnu.org/20255>. * guix/packages.scm (sexp->search-path-specification): New variable. * guix/profiles.scm (<manifest-entry>)[search-paths]: New field. (package->manifest-entry): Initialize it. (manifest->gexp): Match it. Wrap #$deps in (propagated-inputs ...). Emit (search-paths ...). Increment version. (find-package): New procedure. (sexp->manifest)[infer-search-paths]: New procedure. Use it to initialize the 'search-paths' field for versions 0 and 1. Add case for version 2. * guix/scripts/package.scm (search-path-environment-variables)[manifest-entry->package]: Remove. Use 'manifest-entry-search-paths' instead of 'manifest-entry->package' plus 'package-native-search-paths'. * tests/profiles.scm ("profile-manifest, search-paths"): New test.
2015-04-15profiles: Generalize "hooks" for 'profile-derivation'.Ludovic Courtès
* guix/profiles.scm (info-dir-file): Remove (null? (manifest-entries manifest)) test. (ca-certificate-bundle): Likewise. (ghc-package-cache-file): Turn 'if' into 'and', and remove second arm. (%default-profile-hooks): New variable. (profile-derivation): Remove #:info-dir?, #:ghc-package-cache?, and #:ca-certificate-bundle?. Add #:hooks. Iterate over HOOKS. Adjust 'inputs' accordingly. * guix/scripts/package.scm (guix-package): Adjust 'profile-derivation' call accordingly. * tests/packages.scm ("--search-paths with pattern"): Likewise. * tests/profiles.scm ("profile-derivation", "profile-derivation, inputs"): Likewise.
2015-04-08profiles: Generate GHC's package database cache.Federico Beffa
* guix/profiles.scm (ghc-package-cache-file): New procedure. (profile-derivation): Add 'ghc-package-cache?' keyword argument. If true (the default), add the result of 'ghc-package-cache-file' to 'inputs'. * guix/scripts/package.scm (guix-package)[process-actions]: Pass #:ghc-package-cache? to 'profile-generation'. * tests/packages.scm ("--search-paths with pattern"): Likewise. * tests/profiles.scm ("profile-derivation"): Likewise.
2015-03-17gexp: Add <gexp-input>.Ludovic Courtès
* guix/gexp.scm (<gexp-input>): New record type. (gexp-inputs)[add-reference-inputs]: Adjust clauses to expect <gexp-input> objects. (gexp-outputs)[add-reference-output]: Likewise. (gexp->sexp)[reference->sexp]: Likewise. (canonicalize-reference): Remove. (gexp)[escape->ref]: Use 'gexp-input' for all the references. Remove use of 'canonicalize-reference'.
2015-03-04tests: Remove dependency on 'glibc-utf8-locales' for profile tests.Ludovic Courtès
This fixes a regression introduced in commit 536c3ee. * guix/profiles.scm (ca-certificate-bundle): When MANIFEST is empty, make a trivial derivation. * guix/scripts/package.scm (guix-package)[process-actions]: Pass #:ca-certificate-bundle? to 'profile-generation'. * tests/packages.scm ("--search-paths with pattern"): Likewise. * tests/profiles.scm ("profile-derivation"): Likewise.
2015-02-09profiles: Report "pseudo-upgrades" as upgrades, not downgrades.Ludovic Courtès
Reported by Andreas Enge <andreas@enge.fr> at <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=19764#19>. * guix/profiles.scm (manifest-transaction-effects): Use 'version>=?' instead of 'version>?'. * tests/profiles.scm ("manifest-transaction-effects and pseudo-upgrades"): New test.
2015-02-08profiles: Distinguish downgrades from upgrades.Ludovic Courtès
Fixes <http://bugs.gnu.org/19764>. * guix/profiles.scm (manifest-transaction-effects): Return downgraded packages as a fourth value. * guix/ui.scm (show-manifest-transaction): Adjust accordingly. * tests/profiles.scm ("manifest-transaction-effects and downgrades"): New test.
2014-12-15tests: Use 'test-assertm' for profiles.Ludovic Courtès
* tests/profiles.scm (test-assertm): New macro. ("profile-derivation"): Use it instead of 'test-assert' + 'run-with-store'.
2014-10-10ui: Move 'show-manifest-transaction' from (guix profiles).Alex Kost
* guix/profiles.scm: Do not use (guix ui) module. (right-arrow, manifest-show-transaction): Move and rename to... * guix/ui.scm (right-arrow, show-manifest-transaction): ... here. * tests/profiles.scm ("manifest-show-transaction"): Move to... * tests/ui.scm ("show-manifest-transaction"): ... here. (guile-1.8.8, guile-2.0.9): New variables. * emacs/guix-main.scm (process-package-actions): Rename 'manifest-show-transaction' to 'show-manifest-transaction'. * guix/scripts/package.scm (guix-package): Likewise. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2014-09-04profiles: Use a real arrow to denote upgrades in ASCII.Ludovic Courtès
Suggested by Alex Kost. * guix/profiles.scm (right-arrow): Fall back to "->". * tests/profiles.scm ("manifest-show-transaction"): Adjust accordingly.
2014-09-02profiles: Report the old and new version number in upgrades.Ludovic Courtès
* guix/profiles.scm (manifest-lookup): New procedure. (manifest-installed?): Use it. (manifest-transaction-effects): Return a pair of entries for upgrades. (right-arrow): New procedure. (manifest-show-transaction)[upgrade-string, →]: New variables. Report upgrades using 'upgrade-string'. * tests/profiles.scm ("manifest-show-transaction"): New test. ("manifest-transaction-effects"): Match UPGRADE against a pair.
2014-08-30profiles: Compute transaction effects in a functional way.Ludovic Courtès
* guix/profiles.scm (manifest-transaction-effects): New procedure. (manifest-show-transaction): Use it instead of locally computing it. * tests/profiles.scm (glibc): New variable. ("manifest-transaction-effects"): New test.
2014-08-23Factorize test suite support in (guix tests).Ludovic Courtès
* guix/tests.scm: New file. * Makefile.am (noinst_DATA): New variable. (GOBJECTS): Add guix/tests.go. * tests/builders.scm (%store): Use 'open-connection-for-tests' from (guix tests). * tests/derivations.scm: Likewise. * tests/monads.scm: Likewise. * tests/packages.scm: Likewise. * tests/profiles.scm: Likewise. * tests/union.scm: Likewise. * tests/gexp.scm: Likewise. (guile-for-build): Remove. Use (%guile-for-build) instead. * tests/nar.scm (make-random-bytevector, %seed, random-text): Remove. (populate-file): Change 'make-random-bytevector' to 'random-bytevector'. Use (guix tests). * tests/store.scm (%seed, random-text): Remove. Use (guix tests).
2014-08-23profiles: Produce a top-level Info 'dir' file.Ludovic Courtès
Fixes <http://bugs.gnu.org/18305>. Reported by Brandon Invergo <brandon@gnu.org>. * guix/profiles.scm (manifest-inputs, info-dir-file): New procedures. (profile-derivation): Use them. Add #:info-dir? parameter and honor it. * guix/scripts/package.scm (guix-package): Call 'profile-derivation' with #:info-dir? #f when the 'bootstrap? option is set. * tests/profiles.scm ("profile-derivation"): Pass #:info-dir? #f.
2014-08-19profiles: Add 'manifest-transaction'.Alex Kost
* guix/profiles.scm (<manifest-transaction>): New record-type. (manifest-perform-transaction): New procedure. (manifest-show-transaction): New procedure. * tests/profiles.scm ("manifest-perform-transaction"): New test. Co-authored-by: Ludovic Courtès <ludo@gnu.org>