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| author | Ludovic Courtès <ludo@gnu.org> | 2020-09-21 17:44:29 +0200 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2020-09-27 21:41:05 +0200 |
| commit | ff39361c80dfc67a9afe35f315a774140d8cf99b (patch) | |
| tree | f0183ad15f06b50121cc0dbfb2c293b93770f8ca /doc/guix.texi | |
| parent | f458cfbcc54ed87b1a87dd9e150ea276f17eab74 (diff) | |
| download | guix-ff39361c80dfc67a9afe35f315a774140d8cf99b.tar guix-ff39361c80dfc67a9afe35f315a774140d8cf99b.tar.gz | |
packages: 'package-mapping' can recurse on implicit inputs.
* guix/packages.scm (build-system-with-package-mapping): New procedure.
(package-mapping): Add #:deep? and honor it.
* tests/packages.scm ("package-mapping"): Compare the direct inputs of
the bag of P0 and that of P1.
("package-mapping, deep"): New test.
Diffstat (limited to 'doc/guix.texi')
| -rw-r--r-- | doc/guix.texi | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index 8384eee6c3..054449d8d6 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -6296,10 +6296,11 @@ A more generic procedure to rewrite a package dependency graph is @code{package-mapping}: it supports arbitrary changes to nodes in the graph. -@deffn {Scheme Procedure} package-mapping @var{proc} [@var{cut?}] +@deffn {Scheme Procedure} package-mapping @var{proc} [@var{cut?}] [#:deep? #f] Return a procedure that, given a package, applies @var{proc} to all the packages depended on and returns the resulting package. The procedure stops recursion -when @var{cut?} returns true for a given package. +when @var{cut?} returns true for a given package. When @var{deep?} is true, @var{proc} is +applied to implicit inputs as well. @end deffn @menu |