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-*- mode: org; coding: utf-8; -*-

#+TITLE: Hacking GNU Guix and Its Incredible Distro

Copyright © 2012, 2013, 2014, 2016, 2017, 2019 Ludovic Courtès <ludo@gnu.org>
Copyright © 2015, 2017 Mathieu Lirzin <mthl@gnu.org>
Copyright © 2017 Leo Famulari <leo@famulari.name>
Copyright © 2017 Arun Isaac <arunisaac@systemreboot.net>

  Copying and distribution of this file, with or without modification,
  are permitted in any medium without royalty provided the copyright
  notice and this notice are preserved.

* Contributing

See the manual for useful hacking information, either by running

  info -f doc/guix.info "Contributing"

or by checking the [[https://guix.gnu.org/manual/devel/en/html_node/Contributing.html][web copy of the manual]].
generated by cgit
Add ".tgz". 2021-03-23utils: Fix target-64bit? on powerpc64le-linux.Chris Marusich * guix/utils.scm (target-64bit?): Change the string from "ppc64" to "powerpc64", which matches Guix system names like "powerpc64le-linux". 2021-03-23utils: Add target-powerpc? procedure.Chris Marusich * guix/utils.scm (target-powerpc?): New exported procedure. 2021-03-12utils: Use Guile-zlib for gzip compression and decompression.Ludovic Courtès Fixes <https://bugs.gnu.org/46967>. * guix/utils.scm (decompressed-port): Call 'make-zlib-input-port' instead of invoking %GZIP. (compressed-output-port): Call 'make-zlib-output-port' instead of invoking %GZIP. * doc/guix.texi (Requirements): Require Guile-zlib >= 0.1.0. 2021-02-03utils: Add string distance.zimoun * guix/utils.scm (string-distance): New procedure. (string-closest): New procedure. * tests/utils.scm ("string-distance", "string-closest"): New tests. Signed-off-by: Ludovic Courtès <ludo@gnu.org> 2021-02-01utils: Add 'version-unique-prefix'.Ludovic Courtès * guix/utils.scm (version-unique-prefix): New procedure. * tests/utils.scm ("version-unique-prefix"): New test. 2021-01-13utils: Support zstd compression via Guile-zstd.Ludovic Courtès * guix/utils.scm (lzip-port): Return a single value. (zstd-port): New procedure. (decompressed-port, compressed-output-port): Add 'zstd' case. * tests/utils.scm (test-compression/decompression): Test 'zstd' when the (zstd) module is available. 2021-01-13utils: Remove 'compressed-output-port'.Ludovic Courtès This procedure was unused except in one test. * guix/utils.scm (compressed-port): Remove. * tests/utils.scm (test-compression/decompression): Rewrite to use 'compressed-output-port' instead. 2020-12-28utils: Add pkg-config-for-target.Efraim Flashner * guix/utils.scm (pkg-config-for-target): New procedure. 2020-11-16utils: Add 'cxx-for-target'.Danny Milosavljevic * guix/utils.scm (cxx-for-target): New procedure. 2020-08-24Use "guile-zlib" and "guile-lzlib" instead of (guix config).Mathieu Othacehe * Makefile.am (MODULES): Remove guix/zlib.scm and guix/lzlib.scm, (SCM_TESTS): remove tests/zlib.scm, tests/lzlib.scm. * build-aux/build-self.scm (make-config.scm): Remove unused %libz variable. * configure.ac: Remove LIBZ and LIBLZ variables and check instead for Guile-zlib and Guile-lzlib. * doc/guix.texi ("Requirements"): Remove zlib requirement and add Guile-zlib and Guile-lzlib instead. * gnu/packages/package-management.scm (guix)[native-inputs]: Add "guile-zlib" and "guile-lzlib", [inputs]: remove "zlib" and "lzlib", [propagated-inputs]: ditto, [arguments]: add "guile-zlib" and "guile-lzlib" to Guile load path. * guix/config.scm.in (%libz, %liblz): Remove them. * guix/lzlib.scm: Remove it. * guix/man-db.scm: Use (zlib) instead of (guix zlib). * guix/profiles.scm (manual-database): Do not stub (guix config) in imported modules list, instead add "guile-zlib" to the extension list. * guix/scripts/publish.scm: Use (zlib) instead of (guix zlib) and (lzlib) instead of (guix lzlib), (string->compression-type, effective-compression): do not check for zlib and lzlib availability. * guix/scripts/substitute.scm (%compression-methods): Do not check for lzlib availability. * guix/self.scm (specification->package): Add "guile-zlib" and "guile-lzlib" and remove "zlib" and "lzlib", (compiled-guix): remove "zlib" and "lzlib" arguments and add guile-zlib and guile-lzlib to the dependencies, also do not pass "zlib" and "lzlib" to "make-config.scm" procedure, (make-config.scm): remove "zlib" and "lzlib" arguments as well as %libz and %liblz variables. * guix/utils.scm (lzip-port): Use (lzlib) instead of (guix lzlib) and do not check for lzlib availability. * guix/zlib.scm: Remove it. * m4/guix.m4 (GUIX_LIBZ_LIBDIR, GUIX_LIBLZ_FILE_NAME): Remove them. * tests/lzlib.scm: Use (zlib) instead of (guix zlib) and (lzlib) instead of (guix lzlib), and do not check for zlib and lzlib availability. * tests/publish.scm: Ditto. * tests/substitute.scm: Do not check for lzlib availability. * tests/utils.scm: Ditto. * tests/zlib.scm: Remove it. 2020-08-17utils: Add version-major+minor+point.Efraim Flashner * guix/utils.scm (version-major+minor+point): New procedure. 2020-07-25utils: Move '&fix-hint' to (guix diagnostics).Ludovic Courtès * guix/utils.scm (&fix-hint): Move to... * guix/diagnostics.scm (&fix-hint): ... here. * gnu.scm: Adjust imports accordingly. * gnu/system/mapped-devices.scm: Likewise. * guix/channels.scm: Likewise. * guix/profiles.scm: Likewise. * guix/scripts/system/reconfigure.scm: Likewise. * guix/ssh.scm: Likewise. 2020-07-25utils: Remove compatibility re-export of 'memoize'.Ludovic Courtès The 'memoize' binding was re-exported in 2016, commit 19e1d5f7f90194f1ac7e783b28a688ce1441786d, as a backwards-compatibility measure that makes little sense now. * guix/utils.scm: Don't re-export 'memoize'. * guix/import/pypi.scm: Adjust imports. * tests/pypi.scm: Remove duplicate (guix memoization) import. 2020-07-25utils: Move <location> and '&error-location' to (guix diagnostics).Ludovic Courtès * guix/utils.scm (<location>, source-properties->location) (location->source-properties, &error-location): Move to... * guix/diagnostics.scm: ... here. * gnu.scm: Adjust imports accordingly. * gnu/machine.scm: Likewise. * gnu/system.scm: Likewise. * gnu/tests.scm: Likewise. * guix/inferior.scm: Likewise. * tests/channels.scm: Likewise. * tests/packages.scm: Likewise. 2020-06-06utils: Add 'with-environment-variables'.Ludovic Courtès * guix/tests/gnupg.scm (call-with-environment-variables) (with-environment-variables): Move to... * guix/utils.scm: ... here. * guix/tests/git.scm: Adjust accordingly. 2020-05-29utils: Add 'cc-for-target'.Marius Bakke * guix/utils.scm (cc-for-target): New procedure. 2020-05-16utils: 'target-arm32?' & co. take an optional parameter.Ludovic Courtès * guix/utils.scm (target-arm32?, target-aarch64?) (target-arm?, target-64bit?): Make 'target' an optional parameter. 2020-01-06Adjust module autoloads.Ludovic Courtès In Guile < 2.9.7, autoloading a module would give you access to all its bindings. In future versions, autoloading a module gives access only to the listed bindings, as per #:select (see <https://bugs.gnu.org/38895>). This commit adjusts autoloads to the new semantics, allowing Guix to be built with Guile 2.9.7/2.9.8. * guix/build/download.scm <top level>: Remove call to 'module-autoload!'. (load-gnutls): New procedure. (tls-wrap): Call it. * guix/git.scm <top level>: Remove call to 'module-autoload!'. (load-git-submodules): New procedure. (update-submodules): Call it instead of 'resolve-interface'. * gnu/bootloader/grub.scm: Replace #:autoload with #:use-module. * gnu/packages.scm: Likewise. * gnu/packages/ssh.scm: Likewise. * gnu/packages/tex.scm: Likewise. * gnu/services/cuirass.scm: Likewise. * gnu/services/mcron.scm: Likewise. * guix/lint.scm: Augment list of bindings in #:autoload. * guix/scripts/build.scm: Likewise. * guix/scripts/gc.scm: Likewise. * guix/scripts/pack.scm: Likewise. * guix/scripts/publish.scm: Likewise. * guix/scripts/pull.scm: Likewise. * guix/utils.scm: Remove unnecessary #:autoload clauses; replace one of them with #:use-module. 2019-11-22utils: Use target-aarch64? and target-arm? helpers.Mathieu Othacehe * guix/utils.scm (target-aarch64?, target-arm?): New exported procedures. 2019-11-18utils: Handle #f file-name.Alex Sassmannshausen * guix/utils.scm (current-source-directory): Change dispatch to handle #f file-name. Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com> 2019-09-10guix: Rename and move sans-extension to tarball-sans-extension.Hartmut Goebel * guix/gnu-maintenance.scm (sans-extension): Move and rename to ... * guix/utils.scm (tarball-sans-extension): ... here. 2019-06-20utils: canonical-newline-port: Fix handling of carriage return at buffer end.Robert Vollmert Prior to this change the added test fails for me locally at byte 1024. It might depend on some default buffer sizes. Fixes <https://bugs.gnu.org/35863>. * tests/utils.scm ("canonical-newline-port-1024"): Add test. * guix/utils.scm (canonical-newline-port): Correct comments on CR/LF. Remove CR even when they're at the end of the buffer. Signed-off-by: Ludovic Courtès <ludo@gnu.org> 2019-05-27utils: Support compression and decompression with lzip.Ludovic Courtès * guix/utils.scm (lzip-port): New procedure. (decompressed-port, compressed-port, compressed-output-port): Add 'lzip case. * tests/utils.scm <top level>: Call 'test-compression/decompression' for 'lzip as well. 2018-12-19utils: Memoize 'absolute-dirname'.Ludovic Courtès * guix/utils.scm (absolute-dirname): Wrap in 'mlambda'.