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2021-11-19import: opam: Warn instead of leave when fetching fails.zimoun
* guix/import/opam.scm (opam-featch): Warn instead of leave when fetching fails. Signed-off-by: Julien Lepiller <julien@lepiller.eu>
2021-11-19build-system/asdf: Don't fail in sbcl-package->cl-source-package on ↵Pierre Neidhardt
non-package inputs. Inputs can be non-packages, for instance (origin ...). sbcl-package->cl-source-package used to fail if such inputs were present in the parent sbcl-* package. * guix/build-system/asdf.scm (package-with-build-system): Fix 'has-from-build-system?' function.
2021-11-18gnupg: Honor GnuPG's configuration for the key server.Maxim Cournoyer
The previous default "pool.sks-keyservers.net" doesn't seem to work anymore; besides, users know best. * guix/gnupg.scm (%openpgp-key-server): Default to #f, meaning not provided. (gnupg-receive-keys): Make SERVER and KEYRING keyword arguments. Adjust doc. Provide the '--keyserver' argument only when %openpgp-key-server is not #f. (gnupg-verify*): Do not set a default value for SERVER. Adjust accordingly.
2021-11-18import: texlive: Take different package database as optional argument.Ricardo Wurmus
* guix/import/texlive.scm (tlpdb->package): Expect PACKAGE-DATABASE as argument. (texlive->guix-package): Accept PACKAGE-DATABASE keyword.
2021-11-18import: texlive: Print inputs with labels and guixified names.Ricardo Wurmus
* guix/import/texlive.scm (tlpdb->package): Improve handling of propagated-inputs.
2021-11-17diagnostics: Add syntax to capture arguments' syntax-properties.Josselin Poiret
* guix/diagnostics.scm (define-with-syntax-properties): Add it. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-11-17scripts: home: Make ‘guix home import’ write home-configuration.scm.Xinglu Chen
* guix/scripts/home.scm (process-command): Populate ‘home-configuration.scm’ in the destination directory instead of printing to stdout. * doc/guix.texi (Declaring the Home Environment): Adjust accordingly. (Invoking guix home): Likewise. Suggested-by: Ludovic Courtès <ludo@gnu.org> Co-authored-by: Ludovic Courtès <ludo@gnu.org>
2021-11-17import: texlive: Remove leftover 'pk'.Ludovic Courtès
* guix/import/texlive.scm (files->directories): Remove leftover 'pk' call.
2021-11-17import: texlive: Load (gnu packages tex) dynamically.Ludovic Courtès
Fixes a bug whereby 'guix pull' would fail with this guix-extra.drv build failure: ice-9/eval.scm:163:9: ERROR: 1. &formatted-message: format: "~a: patch not found\n" arguments: ("nettle-3.5-check-_pkcs1_sec_decrypt-msg-len.patch") Reported by ekaitz on #guix. Regression introduced in 3b1a12c5bff5a0c108284d19a6982bdf663bbceb. * guix/import/texlive.scm: Autoload (gnu packages tex). fixlet
2021-11-17import: Replace texlive importer.Ricardo Wurmus
* guix/import/texlive.scm (fetch-sxml, sxml->package): Remove procedures. (tlpdb-file, tlpdb, files->directories, tlpdb->package): New procedures. (string->license): Add case for lpplgpl license combination. (guix-name): Remove COMPONENT argument. (texlive->guix-package): Use new procedures. (texlive-recursive-import): New procedure. * guix/scripts/import/texlive.scm (show-help, %options): Remove --archive option. (guix-import-texlive): Adjust call of texlive->guix-package. * doc/guix.texi (Invoking guix import): Update documentation.
2021-11-17guix: Add download-multi-svn-to-store.Ricardo Wurmus
* guix/svn-download.scm (download-multi-svn-to-store): New procedure.
2021-11-16daemon: Do not deduplicate files smaller than 8 KiB.Ludovic Courtès
Files smaller than 8 KiB typically represent ~70% of the entries in /gnu/store/.links but only contribute to ~4% of the space savings afforded by deduplication. Not considering these files for deduplication speeds up file insertion in the store and, more importantly, leaves 'removeUnusedLinks' with fewer entries to traverse, thereby speeding it up proportionally. Partly fixes <https://issues.guix.gnu.org/24937>. * config-daemon.ac: Remove symlink hard link check and CAN_LINK_SYMLINK definition. * guix/store/deduplication.scm (%deduplication-minimum-size): New variable. (deduplicate)[loop]: Do not recurse when FILE's size is below %DEDUPLICATION-MINIMUM-SIZE. (dump-port): New procedure. (dump-file/deduplicate)[hash]: Turn into... [dump-and-compute-hash]: ... this thunk. Call 'deduplicate' only when SIZE is greater than %DEDUPLICATION-MINIMUM-SIZE; otherwise call 'dump-port'. * nix/libstore/gc.cc (LocalStore::removeUnusedLinks): Drop files where st.st_size < deduplicationMinSize. * nix/libstore/local-store.hh (deduplicationMinSize): New declaration. * nix/libstore/optimise-store.cc (deduplicationMinSize): New variable. (LocalStore::optimisePath_): Return when PATH is a symlink or smaller than 'deduplicationMinSize'. * tests/derivations.scm ("identical files are deduplicated"): Produce files bigger than %DEDUPLICATION-MINIMUM-SIZE. * tests/nar.scm ("restore-file-set with directories (signed, valid)"): Likewise. * tests/store-deduplication.scm ("deduplicate, below %deduplication-minimum-size"): New test. ("deduplicate", "deduplicate, ENOSPC"): Produce files bigger than %DEDUPLICATION-MINIMUM-SIZE. * tests/store.scm ("substitute, deduplication"): Likewise.
2021-11-16tests: Factorize 'file=?'.Ludovic Courtès
* guix/tests.scm (file=?): Add optional 'stat' parameter. Add fast patch comparing inode numbers. * tests/gexp.scm ("imported-files with file-like objects"): Remove 'file=?' procedure and use the one from (guix tests).
2021-11-16build-system/julia: Enable Julia Pkg to find installed packages.Jean-Baptiste Volatier
Julia's built-in package manager (Pkg) looks for packages in JULIA_DEPOT_PATH/packages/PACKAGENAME/XXXX, where XXXX is a string encoding package UUID and SHA1 of files. The link-depot phase creates a link at the correct location to allow Pkg to find packages that were already installed by Guix. * guix/build/julia-build-system.scm (link-depot): New phase. (%package-path): Modified package path from packages/ to loadpath/. (project.toml->uuid): New procedure, retrive package uuid from TOML file. (precompile, check): Adjust to the change in paths. (%standard-phases): Add link-depot phase. (julia-build): Add julia-package-uuid keyword. * guix/build-system/julia.scm (julia-build): Also use the julia-package-uuid keyword. * gnu/packages/julia-jll.scm (julia-bzip2-jll, julia-cairo-jll, julia-compilersupportlibraries-jll, julia-expat-jll, julia-ffmpeg-jll, julia-fontconfig-jll, julia-freetype2-jll, julia-fribidi-jll, julia-gettext-jll, julia-glib-jll, julia-gr-jll, julia-gumbo-jll, julia-imagemagick-jll, julia-jllwrappers-jll, julia-jpegturbo-jll, julia-lame-jll, julia-libass-jll, julia-libfdk-aac-jll, julia-libffi-jll, julia-libgcrypt-jll, julia-libglvnd-jll, julia-libgpg-error-jll, juli-libiconv-jll, julia-libmount-jll, julia-libpng-jll, julia-libsass-jll, julia-libtiff-jll, julia-libuuid-jll, julia-libvorbis-jll, julia-lzo-jll, julia-mbedtls-jll, julia-ogg-jll, julia-openspecfun-jll, julia-openssl-jll, julia-opus-jll, julia-pcre-jll, julia-pixman-jll, julia-qt5base-jll, julia-wayland-jll, julia-wayland-protocols-jll, julia-x264-jll, julia-x265-jll, julia-xkbcommon-jll, julia-xml2-jll, julia-xorg-libpthread-stubs-jll, julia-xorg-libx11-jll, julia-xorg-libxau-jll, julia-xorg-libxcb-jll, julia-xorg-libxcursor-jll, julia-xorg-libxdmcp-jll, julia-xorg-libxext-jll, julia-xorg-libxfixes-jll, julia-xorg-libxi-jll, julia-xorg-libxinerama-jll, julia-xorg-libxkbfile-jll, julia-xorg-libxrandr-jll, julia-xorg-libxrender-jll, julia-xorg-xcb-util-jll, julia-xorg-xcb-util-keysyms-jll, julia-xorg-xcb-util-renderutil-jll, julia-xorg-xcb-util-wm-jll, julia-xorg-xkbcomp-jll, julia-xorg-xkeyboard-config-jll, julia-xorg-xtrans-jll, julia-xslt-jll, julia-zlib-jll, julia-zstd-jll) [argument]: Adjust the order of the phases to the change in the julia-build-system. * gnu/packages/julia-xyz.scm (julia-bufferedstreams, julia-calculus, julia-dataframes, julia-datavalues, julia-distances, julia-documenter, julia-dualnumbers, julia-ellipsisnotation, julia-expronicon, julia-fileio, julia-fixedpointnumbers, julia-functionwrappers, julia-fuzzycompletions, julia-genericlinearalgebra, julia-genericschur, julia-geometrybasics, julia-imagemagick, julia-infinity, julia-matrixfactorizations, julia-media, julia-missings, julia-nnlib, julia-optimtestproblems, julia-orderedcollections, julia-prettytables, julia-pycall, julia-quadmath, julia-safetests, julia-stackviews) [arguments]: Correct paths to reflect change of %package-path modify order of phases as link-depot needs to run on an unmodified src directory add package-name-uuid keyword argument to packages without Project.toml file. * gnu/packages/julia.scm (julia)[native-search-paths]: Correct paths to reflect change of %package-path modify order of phases as link-depot needs to run on an unmodified src directory. Signed-off-by: Efraim Flashner <efraim@flashner.co.il>
2021-11-14build: wrap-qt-program: Fix typo.Vagrant Cascadian
* gnu/build/qt-utils.scm (wrap-qt-program): Fix spelling of "program".
2021-11-14environment: Fix ‘--check’ with exported PS1 variable.Thiago Jung Bauermann
If your .bashrc (unnecessarily) exports PS1 and you’re in a non-login shell, Guix crashes: user@popigai:~$ guix shell --check coreutils guix shell: checking the environment variables visible from shell '/bin/bash'... Backtrace: 14 (primitive-load "/home/user/.config/guix/current/bin/g…") In guix/ui.scm: 2206:7 13 (run-guix . _) 2169:10 12 (run-guix-command _ . _) In ice-9/boot-9.scm: 1752:10 11 (with-exception-handler _ _ #:unwind? _ # _) 1752:10 10 (with-exception-handler _ _ #:unwind? _ # _) In guix/store.scm: 658:37 9 (thunk) 1320:8 8 (call-with-build-handler _ _) 1320:8 7 (call-with-build-handler #<procedure 7fe393b7c420 at g…> …) In guix/status.scm: 800:4 6 (call-with-status-report _ _) In guix/scripts/environment.scm: 951:12 5 (_) In guix/store.scm: 2119:24 4 (run-with-store #<store-connection 256.99 7fe39627e500> …) In guix/scripts/environment.scm: 521:35 3 (_ _) In unknown file: 2 (string=? ("PS1" . "${debian_chroot:+($debian_chroot)…") …) In ice-9/boot-9.scm: 1685:16 1 (raise-exception _ #:continuable? _) 1685:16 0 (raise-exception _ #:continuable? _) ice-9/boot-9.scm:1685:16: In procedure raise-exception: In procedure string=: Wrong type argument in position 1 (expecting string): ("PS1" . "${debian_chroot:+($debian_chroot)}\\[\\033[01;32m\\]\\u@\\h\\[\\033[00m\\]:\\[\\033[01;34m\\]\\w\\[\\033[00m\\]${EXTRA}\\$ ") user@popigai:~$ This is because the match pattern doesn’t expect `(vhash-assoc "PS1" actual)` to return a pair. * guix/scripts/environment.scm (validate-child-shell-environment): Change match pattern to expect a pair. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-11-13guix: packages: Clarify that list is a list of <license> records.jgart
* guix/packages/packages.scm (<package>): Clarify that the license field takes a list of licenses rather than a generic list. Signed-off-by: Liliana Marie Prikler <liliana.prikler@gmail.com>
2021-11-12import: utils: Add more licenses and extend their detection.Attila Lendvai
* guix/import/utils.scm (spdx-string->license): Identify more licenses (CC-BY-4.0, Freetype, HPND). * guix/licenses.scm: Add a comment that mentions "MIT" so that people who grep for MIT end up there. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-11-11import: print: Replace packages and origins in 'arguments'.Ludovic Courtès
* guix/import/print.scm (package->code)[variable-reference] [object->code]: New procedures. [package-lists->code]: Rewrite in terms of 'object->code'. Pass the 'arguments' field through 'object->code'. * tests/print.scm (pkg-with-arguments, pkg-with-arguments-source): New variables. ("package with arguments"): New test.
2021-11-11import: print: Handle patches that are origins.Ludovic Courtès
* guix/import/print.scm (package->code)[source->code]: Handle patches that are origins. * tests/print.scm (pkg-with-origin-input): Add 'patches' field. (pkg-with-origin-patch, pkg-with-origin-patch-source): New variables. ("package with origin patch"): New test.
2021-11-11import: print: Correctly handle URI lists.Ludovic Courtès
* guix/import/print.scm (package->code)[factorized-uri-code]: New procedure. [source->code]: Use it, and factorize URI when it's a list. * tests/print.scm (pkg-with-origin-input): Check origin URI to a list.
2021-11-11import: print: Properly render packages with origins as inputs.Ludovic Courtès
* guix/import/print.scm (package->code)[source->code]: Check whether VERSION is true before calling 'factorize-uri'. [package-lists->code]: Add clause for inputs that are origins. * tests/print.scm (pkg-with-origin-input, pkg-with-origin-input-source): New variables. ("package with origin input"): New test.
2021-11-11import: cran: Allow imports of a specific version.Ludovic Courtès
* guix/import/cran.scm (download): Handle the case where URL is a list. (fetch-description-from-tarball): New procedure. (fetch-description): Add #:version parameter. Honor it when REPOSITORY is 'cran. Use 'fetch-description-from-tarball' when REPOSITORY is 'bioconductor. (description->package): SOURCE-URL may now be a list. (cran->guix-package): Pass VERSION to 'fetch-description'. (cran-recursive-import): Add #:version parameter. * guix/scripts/import/cran.scm (guix-import-cran): Expect a spec rather than a mere package name. * doc/guix.texi (Invoking guix import): Document it.
2021-11-11import: pypi: Allow imports of a specific version.Ludovic Courtès
* guix/import/pypi.scm (latest-version): New procedure. (latest-source-release): Rename to... (source-release): ... this. Add 'version' parameter. (latest-wheel-release): Rename to... (wheel-release): ... this. Add 'version' parameter. (pypi->guix-package): Honor 'version' parameter. (pypi-recursive-import): Add 'version' parameter and honor it. * guix/scripts/import/pypi.scm (guix-import-pypi): Expect a spec. Pass it to 'package-name->name+version'. Pass the 'version' parameter. * tests/pypi.scm ("pypi->guix-package, no wheel"): Exercise the #:version parameter. * doc/guix.texi (Invoking guix import): Document it.
2021-11-07guix: Upgrade to Bioconductor 3.14.Ricardo Wurmus
* guix/build-system/r.scm (bioconductor-uri): Bump Bioconductor version to 3.14. * guix/import/cran.scm (%bioconductor-version): Same.
2021-11-07shell: Actually clean up the profile cache.Ludovic Courtès
Previously, most actions would leave the cache as-is because 'guix-environment*' would indirectly call 'exit', and thus its continuation was never reached. * guix/scripts/shell.scm (guix-shell): Move call to 'maybe-remove-expired-cache-entries' to EXIT-HOOK.
2021-11-07import: egg: Allow imports of a specific version.Xinglu Chen
* guix/import/egg.scm (eggs-repository): Change URL. (egg-metadata): Accept optional #:version keyword argument. (egg->guix-package): Accept ‘version’ argument. (egg-recursive-import): Add ‘version’ argument and honor it. * guix/scripts/import/egg.scm (guix-import-egg): Parse a specification instead of just a package name. * doc/guix.texi (Invoking guix import): Document it. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-11-07home: services: bash: Add ‘aliases’ field.Xinglu Chen
* doc/guix.texi (Shells Home Services): Document it. * gnu/home/services/shells.scm (bash-serialize-aliases): New procedure. (home-bash-configuration, home-bash-extension): Add ‘aliases’ field. (home-bash-extensions): Adjust accordingly. * guix/scripts/home/import.scm (generate-bash-configuration+modules): Populate the ‘alias’ field. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-11-07ui: 'load*' correctly reports 'read-error' in all cases.Ludovic Courtès
Previously, 'read-error' exceptions other than "missing closing paren" would not be reported; instead, we'd directly call (exit 1) without printing anything. Fixes <https://issues.guix.gnu.org/51463>. Reported by Alice BRENON <alice.brenon@ens-lyon.fr>. * guix/ui.scm (report-load-error): Report the error without re-throwing upon 'read-error'. * tests/guix-build.sh: Add test.
2021-11-07utils: 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>
2021-11-06environment: Suggest command upon 'execlp' failure.Ludovic Courtès
* guix/scripts/environment.scm (launch-environment): Call 'primitive-_exit' upon 'system-error. (suggest-command-name, validate-exit-status): New procedures. (launch-environment/fork): Call 'validate-exit-status'. (launch-environment/container)[exit/status*]: New procedure. Use it instead of 'exit/status'.
2021-11-06profiles: Build the man database only if 'man-db' is in the profile.Ludovic Courtès
This allows us to skip the expensive man-db profile hook in most cases. Suggested by Liliana Marie Prikler <liliana.prikler@gmail.com>. * guix/profiles.scm (manual-database/optional): New procedure. (%default-profile-hooks): Use it instead of 'manual-database'. * doc/guix.texi (Documentation): Add footnote about 'man -k' database creation.
2021-11-06import: elpa: Work around Guile 3.0.[5-7] compiler bug.Ludovic Courtès
Fixes <https://issues.guix.gnu.org/49006>. Reported by Xinglu Chen <public@yoctocell.xyz>. * guix/import/elpa.scm (elpa-package->sexp)[melpa-recipe]: Add call to 'identity'.
2021-11-02import: stackage: Update to release 18.14.Lars-Dominik Braun
* guix/import/stackage.scm (%default-lts-version): Update to 18.14.
2021-10-31ui: Use DISPLAY in SHOW-GUIX-HELP.Tobias Geerinckx-Rice
* guix/ui.scm (show-guix-help): Use DISPLAY where FORMAT isn't needed.
2021-10-31ui: Add top-level options to help text.Tobias Geerinckx-Rice
This also makes automated ‘guix --h<Tab>’ completion possible. * guix/ui.scm (show-guix-help): Document that an OPTION's an option, and all valid options.
2021-10-31home: import: Avoid duplication of 'manifest->code'.Ludovic Courtès
* guix/scripts/home/import.scm (manifest->code): Remove. (manifest+configuration-files->code): New procedure. (import-manifest): Use 'manifest+configuration-files->code' instead of 'manifest->code'. * tests/home-import.scm (eval-test-with-home-environment): Likewise. (match-home-environment-transformations): New procedure. ("manifest->code: No services, package transformations"): New test.
2021-10-31home: import: Factorize triplicated 'version-spec' procedure.Ludovic Courtès
* guix/scripts/package.scm (manifest-entry-version-prefix): New procedure, moved from... (export-manifest)[version-spec]: ... here. Adjust caller. * tests/home-import.scm (version-spec): Remove. (eval-test-with-home-environment): Use 'manifest-entry-version-prefix' instead. * guix/scripts/home/import.scm (import-manifest): Likewise.
2021-10-31home: import: Clarify "destination directory".Ludovic Courtès
Suggested by Liliana Marie Prikler <liliana.prikler@gmail.com>. * guix/scripts/home/import.scm (configurations+modules): Rename 'destination-directory' to 'configuration-directory'. Improve docstring.
2021-10-31home: import: Compare procedures with 'eq?'.Ludovic Courtès
'procedure-name' is a debugging aid and cannot be reliably used to check for procedure equality. * guix/scripts/home/import.scm (configurations+modules): Remove use of 'procedure-name'.
2021-10-31guix home: import: Call ‘local-file’ with ‘name’Xinglu Chen
Set the name of the file to just the basename of the file passed to ‘local-file’. * guix/scripts/home/import.scm (basename+remove-dots): New procedure. (generate-bash-configuration+modules): Use it. * tests/home-import.scm (match-home-environment-bash-service): Adjust accordingly. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-10-31Add tests for ‘guix home import’.Xinglu Chen
* tests/home-import.scm: New file. * Makefile.am (SCM_TESTS): Add it. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-10-31guix home: import: Delete duplicate modules when importing.Xinglu Chen
Two different services might require the same module(s), so delete duplicates when generating the ‘use-modules’ form. * import.scm (manifest->code): Delete duplicate modules. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-10-31guix home: import: Don’t use 'slurp-file-gexp'.Xinglu Chen
‘slurp-file-gexp’ is not a bound procedure. * guix/scripts/home/import.scm (generate-bash-configuration+modules): Don’t use ‘slurp-file-gexp’. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-10-31guix home: import: Fix module name for Bash service.Xinglu Chen
* guix/scripts/home/import.scm (generate-bash-configuration+modules): Change (gnu home-services bash) to (gnu home-services shells); add (guix gexp). Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-10-31guix home: import: Allow multiple modules to be imported for each service.Xinglu Chen
Previously, only one module could be imported for each service, e.g., only (gnu home-services shell) could be imported when generating the Bash service declaration. However, for some services, multiple modules might need to be imported in order for it to work. * guix/scripts/home/import.scm (generate-bash-module+configuration): Rename to ... (generate-bash-configuration+modules): ... this. (%files-configurations-alist): Rename to ... (%files+configurations-alist): ... this. (modules+configurations): Rename to ... (configurations+modules): ... this. (manifest->code): Adjust accordingly. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-10-31guix home: import: Make the user to specify a destination directory.Xinglu Chen
Copy the appropriate the relevant configuration files to the destination directory, and call ‘local-file’ on them. Without this, ‘guix home import’ will generate a service declaration like this (service home-bash-service-type (home-bash-configuration (bashrc (list (slurp-file-gexp (local-file "/home/yoctocell/.bashrc")))))) but when running ‘guix home reconfigure’, the ~/.bashrc file would be moved, so when running ‘guix home reconfigure’ for the second time, it would read the ~/.bashrc which is itself a symlink to a file the store. * guix/scripts/home/import.scm (generate-bash-module+configuration): Take ‘destination-directory’ parameter (modules+configurations): Copy the user’s configuration file to ‘%destination-directory’. * guix/scripts/home.scm (process-command): Adjust accordingly; create ‘destination’ if it doesn’t exist. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-10-30shell: Error out when an unauthorized guix.scm/manifest.scm is found.Ludovic Courtès
The previous behavior was confusing: a warning would be printed and 'guix shell' would go on starting an empty environment. Reported by Tobias Geerinckx-Rice <me@tobias.gr>. * guix/scripts/shell.scm (auto-detect-manifest): Change "not loading" case from warning to error. * tests/guix-shell.sh: Adjust accordingly.
2021-10-28packages: Optionally validate Texinfo markup at expansion time.Ludovic Courtès
* guix/packages.scm (validate-texinfo): New macro. (<package>)[synopsis, description]: Add 'sanitize' property.
2021-10-28ui: Gracefully handle invalid Texinfo markup in package blurbs.Ludovic Courtès
Previously 'guix search' & co. would crash when encountering invalid Texinfo. * guix/ui.scm (texi->plain-text*): New procedure. (package-field-string, package->recutils): Use it.