1. The `open_branches` method is used to provide a list of branches
while creating a protected branch.
2. It makes sense to include branches which are matched by one or more
wildcard protected branches, since the user might want to make exact
protected branches from these as well.
3. This also provides a large performance improvement. On my machine, in
a project with 5000 branches and 2000 protected branches, the
`ProtectedBranches#index` page went from a 40 seconds load time to 4
seconds (10x speedup).
1. Allow entering any branch name for a protected branch.
- Either pick from a list of options, or enter it manually
- You can enter wildcards.
2. Display branches matching a protected branch.
- Add a `ProtectedBranches#show` page that displays the branches
matching the given protected branch, or a message if there are no
matches.
- On the `index` page, display the last commit for an exact match,
or the number of matching branches for a wildcard match.
- Add an `iid` column to `protected_branches` - this is what we use for
the `show` page URL.
- On the off chance that this feature is unnecessary, this commit
encapsulates it neatly, so it can be removed without affecting
anything else.
3. Remove the "Last Commit" column from the list of protected branches.
- There's no way to pull these for wildcard protected branches, so it's
best left for the `show` page.
- Rename the `@branches` instance variable to `@protected_branches`
- Minor styling changes with the "Unprotect" button - floated right
like the "Revoke" button for personal access tokens
4. Paginate the list of protected branches.
5. Move the instructions to the left side of the page.
1. The main implementation is in the `ProtectedBranch` model. The
wildcard is converted to a Regex and compared. This has been tested
thoroughly.
- While `Project#protected_branch?` is the main entry point,
`project#open_branches` and
`project#developers_can_push_to_protected_branch?`
have also been modified to work with wildcard protected branches.
- The regex is memoized (within the `ProtectedBranch` instance)
2. Improve the performance of `Project#protected_branch?`
- This method is called from `Project#open_branches` once _per branch_
in the project, to check if that branch is protected or not.
- Before, `#protected_branch?` was making a database call every
time it was invoked (in the above case, that amounts to once
per branch), which is expensive.
- This commit caches the list of protected branches in memory, which
reduces the number of database calls down to 1.
- A downside to this approach is that `#protected_branch?` _could_
return a stale value (due to the caching), but this is
an acceptable tradeoff.
3. Remove the (now) unused `Project#protected_branch_names` method.
- This was previously used to check for protected branch status.
In 8278b763d9 the default behaviour of annotation
has changes, which was causing a lot of noise in diffs. We decided in #17382
that it is better to get rid of the whole annotate gem, and instead let people
look at schema.rb for the columns in a table.
Fixes: #17382
Simplified gitolite handle logic
Stubn over monkeypatch
Stub only specific methods in Gitlab:Gitolite
Moved grach auth to lib
added specs for keys observer
removes SshKey role
