From 96915a448cfe8383a1c47f4b9a1cc810e5161fd0 Mon Sep 17 00:00:00 2001 From: Ludovic Courtès Date: Tue, 27 Nov 2018 15:34:34 +0100 Subject: guix build: Add '--with-branch' transformation option. * guix/scripts/build.scm (evaluate-git-replacement-specs) (transform-package-source-branch): New procedures. (%transformations, %transformation-options): Add 'with-branch'. (show-transformation-options-help): Likewise. * tests/guix-build-branch.sh: New file. * Makefile.am (SH_TESTS): Add it. * doc/guix.texi (Package Transformation Options): Document it. --- doc/guix.texi | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'doc') diff --git a/doc/guix.texi b/doc/guix.texi index c040a8531a..491de5c843 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -6451,6 +6451,33 @@ must be compatible. If @var{replacement} is somehow incompatible with @var{package}, then the resulting package may be unusable. Use with care! +@item --with-branch=@var{package}=@var{branch} +@cindex Git, using the latest commit +@cindex latest commit, building +Build @var{package} from the latest commit of @var{branch}. The @code{source} +field of @var{package} must be an origin with the @code{git-fetch} method +(@pxref{origin Reference}) or a @code{git-checkout} object; the repository URL +is taken from that @code{source}. + +For instance, the following command builds @code{guile-sqlite3} from the +latest commit of its @code{master} branch, and then builds @code{guix} (which +depends on it) and @code{cuirass} (which depends on @code{guix}) against this +specific @code{guile-sqlite3} build: + +@example +guix build --with-branch=guile-sqlite3=master cuirass +@end example + +@cindex continuous integration +Obviously, since it uses the latest commit of the given branch, the result of +such a command varies over time. Nevertheless it is a convenient way to +rebuild entire software stacks against the latest commit of one or more +packages. This is particularly useful in the context of continuous +integration (CI). + +Checkouts are kept in a cache under @file{~/.cache/guix/checkouts} to speed up +consecutive accesses to the same repository. You may want to clean it up once +in a while to save disk space. @end table @node Additional Build Options -- cgit v1.2.3