Allow specifying protected branches using wildcards
Closes#18627
# Tasks
- [ ] #18627!4665 Allow specifying protected branches using wildcards
- [x] Find existing usages of protected branches
- Protecting branches
- `ProtectedBranchesController` is used to mark a branch protected/unprotected
- `API::Branches` can be used to mark a branch protected/unprotected
- Enforcing branch protection
- `Gitlab::GitAccess` has helpers (`can_push_to_branch?`, `check`) that are used to deny pushes if a branch is protected
- Over SSH: `gitlab-shell` receives a push, and calls `/allowed` on the GitLab API, which calls `GitAccess.check`
- Over HTTP:
- `gitlab-workhorse` receives the request, and forwards it to rails
- Rails (in the `GitHttpController#git-recieve-pack`) runs basic checks (is the user logged in, not protected branch checks) and returns ok with `GL_ID` and `RepoPath`
- `gitlab-workhorse` looks at the response, and calls the relevant `gitlab-shell` action from `git-http/handlePostRPC`
- Rest of this flow is the same as the SSH flow above
- [x] Implementation
- [x] Backend
- [x] Change `project#protected_branch?` to look at wildcard protected branches
- [x] Change `project#developers_can_push_to_protected_branch?`
- [x] Change `project#open_branches`
- [x] Better error message when creating a disallowed branch from the Web UI
- [x] Frontend
- [x] Protected branches page should allow typing out a wildcard pattern
- [x] Add help text explaining the use of wildcards
- [x] Show matching branches for each protected branch
- [x] ~~On the index page~~
- [x] On a show page
- [x] Index?
- [x] Can't have the "last commit" column for wildcard protected branches
- [x] Fix / write tests
- [x] What happens if a hook is missing in dev?
- [x] Refactor
- [x] Test workflows
- Create a branch matching a wildcard pattern
- Push to a branch matching a wildcard pattern
- Force push to a branch matching a wildcard pattern
- Delete a branch matching a wildcard pattern
- [x] Test using Web UI
- [x] Test over SSH
- [x] Test over HTTP
- [x] Test as developer and master
- [x] Investigate performance
- [x] Test with a large number of protected branches / branches
- [x] Paginate list of protected branches
- [x] ~~Possibly rewrite `open_branches`~~
- [x] Add `iid`s to existing `ProtectedBranch`es
- [x] Add documentation
- [x] Add CHANGELOG entry
- [x] Add screenshots
- [x] Make sure [build](https://gitlab.com/gitlab-org/gitlab-ce/commit/2f753e3ed2ce681b4444944d521f4419e8ed37f7/builds) passes
- [x] Assign to endboss for review
- [x] Address @DouweM's comments
- [x] `protected_branch_params`
- [x] `exact_match` instead of `explicit_match`
- [x] When would self.name be blank?
- [x] Move `protected_branches.each` to a partial
- [x] Move `matching_branches.each` to a partial
- [x] If the branch is in @matching_branches, it's not been removed
- [x] move this regex to a method and memoize it
- [x] `commit_sha` directly for exact matches
- [x] Number of matches for wildcard matches, with a link
- [x] Wait for [build](https://gitlab.com/gitlab-org/gitlab-ce/commit/43f9ce0e88194b8f719bb1c1e656b7fc13278d56/builds) to pass
- [x] Respond to @DouweM's comments
- [x] Don't use iid
- [x] Controller should use `@project.protected_branches.new`
- [x] move the memoization to `def wildcard_regex`
- [x] render with `collection: @protected_branches`
- [x] Wait for [build](https://gitlab.com/gitlab-org/gitlab-ce/commit/f7beedf122fa0c7aa89e86181fe7499321fb10ca/builds) to pass
- [x] Wait for @DouweM's review
- [x] Wait for @jschatz1's review
- [x] Respond to @jschatz1's comments
- [x] Use the new dropdown style
- [x] description should be moved to the description section without the styling
- [x] Protect button should be disabled when no branch is selected
- [x] Update screenshots
- [x] Merge conflicts
- [x] Make sure [build](https://gitlab.com/gitlab-org/gitlab-ce/commit/20f3cfe8d5540eab64c2ba548043d600b28c61ba/builds) passes
- [ ] Revisit performance, possibly with staging/production data
- [ ] Get a dump of staging / run against staging live
- [ ] Get SSH access to staging
- [ ] Wait for review/merge
# Screenshots
## Creating wildcard protected branches




### Using the `GLDropdown` component

## Enforcing wildcard protected branches
### From the Web UI

### Over SSH

### Over HTTPS

## Listing matching branches

See merge request !4665
New diff notes
Fixes#12732, #14731, #19375, #14783
Builds on https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/4110
To do:
- [x] Get it mostly working
- [x] Validate position validity
- [x] Fix: Don’t link to `#`
- [x] Fix: Base ref can be `nil`, potentially, when the MR has an oprhan source branch => Yep, doesn’t work. We need to store a `start_id`
- [x] Optimize: Fewer duplicate `git diff` compares
- [x] Optimize: Pass paths to `PositionTracer#diff` for faster diffs
- [x] Refactor: Use `head_id` in `MergeRequest`/`MergeRequestDiff` instead of `source_sha`
- [x] Refactor: Convert existing array-based diff refs to the DiffRefs model
- [x] Tweak: Use `note_type` in `Autosave` key
- [x] Tweak: Remove `line_code: note.line_code` from `link_to_reply_discussion`
- [x] Update: `SentNotifications` and reply-by-email receiver
- [x] Update: MR diff notification email
- [x] Update: API (MR, Commit note creation and entity)
- [x] Update: GitHub importer
- [x] Address any other TODO comments
- [x] Fix: Suppress "edited 4 minutes ago"
- [x] Write tests
- [x] `LineMapper`
- [x] `PositionTracer`
- [x] `Position`
- [x] `DiffPositionUpdateService`
- [x] `DiffNote`
- [x] `MergeRequests::RefreshService` / `MergeRequest#update_diff_notes_positions`
- [x] Make sure commits with diff notes don't get cleaned up, since this would prevent the diff notes from being rendered (https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/5062)
Future improvements:
- Display unresolved comments on files outside the diff, if the comment was added when that file _was_ part of the diff
- Allow commenting on sections between hunks, when expanding the diff using `...`
- (We'd need to generate line code based on Position if we have it, even if it falls outside bounds of diff)
- `diff_hunk` on diff note API entity
- Show diff hunk in notification email
- Resolved line notes would have a boolean, and be inactive through `notes.any? { !active? || resolved? }`
- Multi line notes would store a number of positions, and do the right thing (™) in grouping and then rendering if the first item is multiline? => true
- Image diff notes could store x,y,width,height instead of old_line,new_line for similar grouping. Does it need a reference to say if it's on old or new? These can't have line_codes, clearly. Rendering would be interesting.
- Show commit line comments in the MR diff
- Comment on specific selected words
- Comment on file header
- Unfold top of discussion diff note
- New diff notes API for commits and MRs
/cc @rspeicher
See merge request !4101
1. Modify the component to support a callback for every key press in the
filter. We need this so we can update the "Create: <branch_name"
label.
2. Modify the component to use `$(<selector>).first().click()` instead
of `$(selector)[0].click()`, because the latter is non-standard, and
doesn't work in PhantomJS.
Fixed issue with build auto-refresh not working
## What does this MR do?
Due to the `.json` at the end of the build URL fetch, the page wont correctly auto-reload the build log. This fixes that.
See merge request !5110
Hacked in a better message for attachment network error
## What does this MR do?
Adds a better error message for when a user is uploading an attachment and they cannot reach the GitLab instance.
Now displays `Network error. Please check your connection.`.
## Are there points in the code the reviewer needs to double check?
As noted above, I think this is hacky, ideally this would be sent straight from the backend but if not then this should be handled globally?
/cc @fatihacet
## Why was this MR needed?
Attachment upload UX
## What are the relevant issue numbers?
Closes#19161.
## Screenshots (if relevant)
*UPDATED:*

## Does this MR meet the acceptance criteria?
- [ ] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [ ] API support added
- Tests
- [ ] Added for this feature/bug
- [ ] All builds are passing
- [ ] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [ ] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)
See merge request !4977
Naive attempt at fixing Underscore templates
## What does this MR do?
Attempts to fix part of #18939.
## Are there points in the code the reviewer needs to double check?
That this doesn't break anything.
## Why was this MR needed?
See #18939.
## What are the relevant issue numbers?
#18939
## Does this MR meet the acceptance criteria?
- Tests
- [ ] Added for this feature/bug
- [ ] All builds are passing
See merge request !4842
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.
Expiry date on pinned nav cookie
## What does this MR do?
Adds an expiry date far into the future for the pinned nav cookie so that it survives logout & browser closing.
See merge request !5009
Global Ajax error handler
## What does this MR do?
Introduces a new global Ajax error handler to show a flash warning about the error detail of XHR requests which failed with status code 404 and 500
## Are there points in the code the reviewer needs to double check?
Double check the wording.
## Why was this MR needed?
A global solution for the problem in the #17880
## What are the relevant issue numbers?
Fixes#17880
## Screenshots (if relevant)
For requests failed with 404 - 500

For requests failed with 401

See merge request !4797
File Browser navigation fixes
Fixes a double request being made when clicking the file name when navigating through file browser and also fixes opening a file in a new tab or when doing ctrl + click.
Closes#19050
**Before**

**After**

See merge request !4891
Fixed 'use shortcuts' button on docs
## What does this MR do?
Exposes 'onToggleHelp() to window object through `showHelp()` so a help panel can be toggled globally using `showHelp()`.
## Are there points in the code the reviewer needs to double check?
Is this the best implementation? I actually think this is tidier than doing something like `onclick="new Shortcuts().onToggleHelp"` or `$.trigger 'keydown', char: '?'` but let me know.
## Why was this MR needed?
Docs UX
## What are the relevant issue numbers?
Closes#19157.
## Screenshots (if relevant)
## Does this MR meet the acceptance criteria?
- [ ] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [ ] API support added
- Tests
- [ ] Added for this feature/bug
- [ ] All builds are passing
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)
Closes#19157
See merge request !4979
Align flash messages with left side of page content
## What does this MR do?
- align flash messages with left side of page content
## Are there points in the code the reviewer needs to double check?
- flash messages in general
## Why was this MR needed?
- flash messages didn't fit new design
## What are the relevant issue numbers?
closes #18688
## Screenshots
# Before

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# After

---

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The left padding will be fixed by !4854

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See merge request !4959
Insert notification settings dropdown into groups
## Display notification settings dropdown for groups
part of #3359



See merge request !4857
Fixed search field blur not removing focus
## What does this MR do?
Adds a blur event to remove focus styling from the search input.
Any particular reason we were looking for clicks on the document? I can't see why we would be.
## What are the relevant issue numbers?
Closes#18670
## Screenshots (if relevant)

See merge request !4704
Removed fade when filtering results
## What does this MR do?
Removes the `opacity` change when filtering results seeing as we now do `Turbolinks.visit` it isn't required.
Best way to see issue - filter issues & then go back. Will still have opacity styling.
See merge request !4932
Markdown toolbar inserts code blocks
## What does this MR do?
Adds the ability to insert code blocks with the markdown toolbar buttons. This is done by selecting the block & then clicking the code button.
## What are the relevant issue numbers?
Closes#19173
See merge request !4950
Made the search bar on emoji menu sticky
## What does this MR do?
When scrolling down the emoji menu, the search bar disappears. For better UX, the search bar no stays at the top when scrolling.
## Screenshots (if relevant)

See merge request !4743