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GNU Guix consists of Scheme code that implements the deployment model
of the Nix package management tool.  In fact, it currently talks to a
build daemon whose code comes from Nix (see the manual for details.)

Nix was initially written by Eelco Dolstra; other people have been
contributing to it.  See `nix/AUTHORS' for details.

The list of GNU Guix contributors is now generated from the output of
'git log' and written to this file, as can be seen in release tarballs.
Thus, glib would end up with two non-eq? libffi instances, which in turn would lead to duplicate entries in its '%build-inputs' variable. Fixes <https://bugs.gnu.org/43890>. * guix/packages.scm (package-mapping)[rewrite]: Remove call to 'cut?' and call 'replace' unconditionally. [replace]: Add 'cut?' case. * tests/guix-build.sh: Add test combining '--no-grafts' and '--with-graft'. * tests/packages.scm ("package-input-rewriting/spec, identity") ("package-input-rewriting, identity"): New tests. 2020-10-15ui: Only suggest modules that export the unbound variable identifier.Ludovic Courtès Fixes <https://bugs.gnu.org/43498>. Reported by Tobias Geerinckx-Rice <me@tobias.gr>. * guix/ui.scm (known-variable-definition): Check for variables in the public interface of HEAD, not in HEAD itself. * tests/guix-build.sh: Add test. 2020-09-28tests: Simplify shell exit status negation;Eric Bavier * tests/guix-archive.sh, tests/guix-build-branch.sh, tests/guix-build.sh, tests/guix-daemon.sh, tests/guix-download.sh, tests/guix-environment.sh, tests/guix-gc.sh, tests/guix-git-authenticate.sh, tests/guix-graph.sh, tests/guix-hash.sh, tests/guix-lint.sh, tests/guix-pack-relocatable.sh, tests/guix-pack.sh, tests/guix-package-aliases.sh, tests/guix-package-net.sh, tests/guix-package.sh: Use the shell '!' keyword to negate command exit status in place of 'if ...; then false; else true; fi' 2020-09-27packages: 'package-input-rewriting/spec' can rewrite implicit dependencies.Ludovic Courtès With this change, '--with-input', '--with-graft', etc. also apply to implicit dependencies. Thus, it's now possible to do: guix build python-itsdangerous --with-input=python-wrapper=python@2 or: guix build hello --with-graft=glibc=glibc@2.29 Additionally, before, implicit inputs were not rewritten, which could lead to duplicates in the output of 'bag-transitive-inputs' (packages that are not 'eq?' but lead to the same derivation). This in turn would lead to unnecessary rebuilds when using '--with-input' & co. This change fixes it by ensuring even implicit inputs are rewritten. Fixes <https://bugs.gnu.org/42156>. * guix/packages.scm (package-input-rewriting/spec): Add #:deep? defaulting to #true, and pass it to 'package-mapping'. [replacement-property]: New variable. [rewrite]: Check that property and set it on the result of PROC. [cut?]: New procedure. * tests/packages.scm ("package-input-rewriting/spec"): Ensure implicit inputs were unchanged. ("package-input-rewriting/spec, partial match"): Pass #:deep? #f. ("package-input-rewriting/spec, deep") ("package-input-rewriting/spec, no duplicates"): New tests. (package/inherit): Move before use. * tests/guix-build.sh: Add tests. * tests/scripts-build.scm ("options->transformation, with-graft"): Compare dependencies by package name or derivation file name. * doc/guix.texi (Defining Packages): Adjust accordingly. 2020-04-11gnu: commencement: Memoize packages as a function of the system.Ludovic Courtès Previous, things like 'ld-wrapper-boot0' would be memoized with (mlambda () …). However, the definition of 'ld-wrapper-boot0' depends on the result of (%boot0-inputs), which is itself a function of (%current-system). Thus, if one first calls: (parameterize ((%current-system "x86_64-linux")) (ld-wrapper-boot0)) then, in all subsequent calls to 'ld-wrapper-boot0', the value of (%current-system) would be ignored because the result is already memoized. Concretely, 'ld-wrapper-boot0' would always have the dependencies it has on x86_64-linux, even though they are different than those on armhf-linux, say ("bash-mesboot" vs. "bootstrap-binaries"). Fixes <https://bugs.gnu.org/40482>. Reported by Marius Bakke <mbakke@fastmail.com>. * gnu/packages/commencement.scm (define/system-dependent): New macro. (linux-libre-headers-boot0, hurd-core-headers-boot0, ld-wrapper-boot0) (gcc-boot0-intermediate-wrapped, gcc-boot0-wrapped, ld-wrapper-boot3): Define using 'define/system-dependent' instead of 'define' + 'mlambda'. Adjust users so they no longer look like procedure calls. * tests/guix-build.sh: Add test. 2020-03-05guix build: Allow non-package objects in manifest.Ludovic Courtès * guix/scripts/build.scm (options->things-to-build)[manifest->packages]: Remove. Inline map of 'manifest-entry-item'. * tests/guix-build.sh: Add test for "guix build -m" with non-package object.