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https://issues.apache.org/jira/browse/MESOS-4125?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15076416#comment-15076416
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Shuai Lin commented on MESOS-4125:
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Just found {{git rev-parse --git-common-dir}} would return the path of ".git"
directory of the main worktree.
> Use 'git rev-parse --git-dir' instead of assuming '.git' in top dir
> -------------------------------------------------------------------
>
> Key: MESOS-4125
> URL: https://issues.apache.org/jira/browse/MESOS-4125
> Project: Mesos
> Issue Type: Improvement
> Components: build
> Environment: All systems
> Reporter: Kevin Klues
> Assignee: Kevin Klues
> Priority: Minor
> Labels: bootstrap, build, mesosphere
>
> This issue relates to files where we assume that mesos's '.git' folder is
> always located in the top level directory of the mesos tree.
> For example, bootstrap makes this assumption. Specifically, it attempts to
> install pre-commit and post-rewrite hooks into the hardcoded .git/hooks
> directory. However, it is not always true that the .git folder is located
> here.
> Most notably, it is not true if the mesos tree is included as a submodule
> inside another project. When included as a submodule, .git is no longer a
> directory, but rather a file whose text contains a pointer back to the actual
> location of the .git folder inside the containing project. To get at this
> directory, we need to run 'git rev-parse --git-dir' instead of simply
> assuming that the local .git is the proper directory.
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