Shuai Lin created MESOS-4216:
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Summary: post-reviews.py should support multiple git worktrees
Key: MESOS-4216
URL: https://issues.apache.org/jira/browse/MESOS-4216
Project: Mesos
Issue Type: Improvement
Components: build
Reporter: Shuai Lin
Priority: Trivial
Git 2.5 add a new feature "multiple worktrees", e.g. one can checkout multiple
worktrees of the same local git repo, which share the same .git directory.
For example, the following command:
{code}
git worktree add -b new-branch ../mesos-new-branch master
{code}
would create a new folder {{mesos-new-branch}} in the parent folder of mesos
source tree.
See [this github
blog|https://github.com/blog/2042-git-2-5-including-multiple-worktrees-and-triangular-workflows]
for details.
This feature is quite handy when developing mesos: you can avoid re-compiling
mesos (really costs a lot of time) when you need to temporary switch to another
branch and switch back soon after: you just create a worktree, and do stuff
there.
Currently the {{post-reviews.py}} script doesn't work well if not running in
the default worktree, becase it would look for the {{.git}} folder. In
non-default worktree, `.git` is a file whose content points to the real `.git`
dir.
{code}
$ cd ~/dev/mesos-new-branch
$ cat .git
gitdir: ~/dev/mesos/.git/worktrees/mesos-new-branch
{code}
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