[ Sent upstream: https://gitlab.com/gitlab-org/gitlab-shell/merge_requests/40

  This was filed upstream but decided the better way to go is to
  configure default git templates to be just empty.

  Until we implement that, we continue to carry this patch as NXD ]

gitlab-shell uses completely own whole set of git hooks and just
symlinks repo.git/hooks to path/to/gitlab-shell/hooks/.

Original hooks that git added there - when initializing repository -
from its template, and which are by default deactivated, are currently
moved to repos.git/hooks.old.<timestamp>, e.g.

$ ls -F nexedi/helloweb.git/
    config
    description
    HEAD
    hooks@                  -->  ...path/to/gitlab-shell/hooks/
    hooks.old.1446564288/
    info/
    packed-refs
    refs/

$ ls -F nexedi/helloweb.git/hooks.old.1446564288/
    applypatch-msg.sample*
    post-update.sample*
    pre-commit.sample*
    pre-push.sample*
    update.sample*
    commit-msg.sample*
    pre-applypatch.sample*
    prepare-commit-msg.sample*
    pre-rebase.sample*

On the other hand, hooks.old.<timestamp> are not used anywhere and are
left there "just in case". But what is the point to keep those pristine
samples git creates by default? And we are sure those files are always
results of gitlab-shell initializing a repository, as it is
gitlab-shell's job to create/remove/update/etc repositories.

So do not keep old hooks, remove them.

P.S. The patch that introduced whole-hooks-dir-symlinking is
    db81327b (Symlink the whole hooks directory).

/cc @dzaporozhets, @jacobvosmaer

Use recursive lookup for git repositories in the bin/create-hooks script

Closes #82

See merge request !128

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Add hello-world Go executable and gitaly-proto 0.5.0

Closes gitaly#186

See merge request !127

Explain how to release a new version

See merge request !126

adds timeout option to push branches and respective test suite

See merge request !124

Fetch repositories with --quiet option by default

See merge request !125

This will allow us to prevent deadlocks when dealing with extremely
long outputs from `git fetch`. All the pipes (stdin, stdout, and
stderr) have limited buffers, and when one fills up, everything is
going to stop.

Remove git annex support

See merge request !122

Add gitaly notification on post-receive hook

See merge request !119

Set a 'Host' header on unix sockets

Closes #72

See merge request !117

Workaround for a bug in the HTTPUNIX client.

Pass relevant git environment variables while calling `/allowed`

1. Starting version 2.11, git changed the way the pre-receive flow works.
  - Previously, the new potential objects would be added to the main repo. If the pre-receive passes, the new objects stay in the repo but are linked up. If the pre-receive fails, the new objects stay orphaned in the repo, and are cleaned up during the next `git gc`.
  - In 2.11, the new potential objects are added to a temporary "alternate object directory", that git creates for this purpose. If the pre-receive passes, the objects from the alternate object directory are migrated to the main repo. If the pre-receive fails the alternate object directory is simply deleted.
2. In our workflow, the pre-recieve script calls the `/allowed` endpoint on the
   rails server. This `/allowed` endpoint calls out directly to git to perform
   various checks. These direct calls to git do _not_ have the necessary
   environment variables set which allow access to the "alternate object
   directory" (explained above). Therefore these calls to git are not able to
   access any of the new potential objects to be added during this push.

3. We fix this by passing the relevant environment variables
   (`GIT_ALTERNATE_OBJECT_DIRECTORIES`, `GIT_OBJECT_DIRECTORY`, and
   `GIT_QUARANTINE_PATH`) to the `/allowed` endpoint, which will then include
   these environment variables while calling out to git.

---

- Related to gitlab-org/gitlab-ce#25301. 
- Corresponding backend MR: gitlab-org/gitlab-ce!7967
- Corresponding EE MR: gitlab-org/gitlab-ee!964

See merge request !112

1. Starting version 2.11, git changed the way the pre-receive flow works.

  - Previously, the new potential objects would be added to the main repo. If the
    pre-receive passes, the new objects stay in the repo but are linked up. If
    the pre-receive fails, the new objects stay orphaned in the repo, and are
    cleaned up during the next `git gc`.

  - In 2.11, the new potential objects are added to a temporary "alternate object
    directory", that git creates for this purpose. If the pre-receive passes, the
    objects from the alternate object directory are migrated to the main repo. If
    the pre-receive fails the alternate object directory is simply deleted.

2. In our workflow, the pre-recieve script calls the `/allowed` endpoint on the
   rails server. This `/allowed` endpoint calls out directly to git to perform
   various checks. These direct calls to git do _not_ have the necessary
   environment variables set which allow access to the "alternate object
   directory" (explained above). Therefore these calls to git are not able to
   access any of the new potential objects to be added during this push.

3. We fix this by passing the relevant environment variables
   (GIT_ALTERNATE_OBJECT_DIRECTORIES, GIT_OBJECT_DIRECTORY, and
   GIT_QUARANTINE_PATH) to the `/allowed` endpoint, which will then include
   these environment variables while calling out to git.

Make custom hook dir configurable

Add a new configuration option, custom_hook_dir. When this is set, we
will look for global custom hooks in: `<custom_hook_dir>/{pre-receive,update,post-receive}.d/*`

When this is not set, default to `<ROOT_PATH>/hooks`.

Relates to https://gitlab.com/gitlab-org/omnibus-gitlab/issues/1754 and
gitlab-org/gitlab-ce!8040.

See merge request !113

Add a new configuration option, custom_hooks_dir. When this is set, we
will look for global custom hooks in:
    <custom_hooks_dir>/{pre-receive,update,post-receive}.d/*

When this is not set, default to <REPO_PATH>/hooks.

Make merge request text after push clearer

The message to create a merge request after pushing a new branch was not clear. It is now clear that it is optional to create a merge request for the pushed branch.

Part of [#21451](https://gitlab.com/gitlab-org/gitlab-ce/issues/21451)

See merge request !109

Add changelog entry

Editing changelog entry version

Chained global hooks

Closes #32. Docs MR: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6721

See merge request !111

this fixes problem that tests succeeded locally but failed in ci
where parent dirs were missing