This script will be used by the git fetcher to create shallow mirror tarballs.
usage: git-make-shallow [-h] [--ref REF] [--shrink] REVISION [REVISION ...]
Remove the history of the specified revisions, then optionally filter the
available refs to those specified.
positional arguments:
REVISION a git revision/commit
optional arguments:
-h, --help show this help message and exit
--ref REF, -r REF remove all but the specified refs (cumulative)
--shrink, -s shrink the git repository by repacking and pruning
While git does provide the ability to clone at a specific depth, and fetch all
remote refs at a particular depth, the depth is across all branches/tags, and
doesn't provide the flexibility we need, hence this script.
Refs (branches+tags) can be filtered, as the process of history removal scales
up rapidly with the number of refs. Even the existing `git fetch --depth=` is
extremely slow on an upstream kernel repository with all the branches and tags
kept.
This uses the same underlying mechanism to implement the history removal which
git itself uses (.git/shallow), and the results, when configured similarly, are
in line with the results git itself produces with `fetch --depth`.
(Bitbake rev: 0254020f0e1911c0eaf99111b91828d2a74a4ee1)
Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
