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-rw-r--r--doc/guix.texi24
1 files changed, 14 insertions, 10 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index 6124c9c24c..a3dd344a70 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -7807,16 +7807,20 @@ care!
@cindex Git, using the latest commit
@cindex latest commit, building
Build @var{package} from the latest commit of the @code{master} branch of the
-Git repository at @var{url}.
+Git repository at @var{url}. Git sub-modules of the repository are fetched,
+recursively.
-For example, the following commands builds the GNU C Library (glibc) straight
-from its Git repository instead of building the currently-packaged release:
+For example, the following command builds the NumPy Python library against the
+latest commit of the master branch of Python itself:
@example
-guix build glibc \
- --with-git-url=glibc=git://sourceware.org/git/glibc.git
+guix build python-numpy \
+ --with-git-url=python=https://github.com/python/cpython
@end example
+This option can also be combined with @code{--with-branch} or
+@code{--with-commit} (see below).
+
@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
@@ -7829,11 +7833,11 @@ consecutive accesses to the same repository. You may want to clean it up once
in a while to save disk space.
@item --with-branch=@var{package}=@var{branch}
-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}. Git sub-modules of the repository are
-fetched, recursively.
+Build @var{package} from the latest commit of @var{branch}. If the
+@code{source} field of @var{package} is 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}. Otherwise you have to use
+@code{--with-git-url} to specify the URL of the Git repository.
For instance, the following command builds @code{guile-sqlite3} from the
latest commit of its @code{master} branch, and then builds @code{guix} (which