Feature request: Identity and Context Tiles

docs/feature-requests/005-identity-and-context.md

@@ -0,0 +1,99 @@
+**_Part 1 - Required information_**
+
+# Identity and Context Tiles
+
+## :memo: Summary
+
+Add a small tile to the top of the Git and GitHub dock items to display and manage contextual information like the currently authenticated user and the active git repository.
+
+## :checkered_flag: Motivation
+
+All of our Git and GitHub actions and displayed information track a "current repository" that follows the path of your active pane item. Historically, this has been a source of confusion for users:
+
+* If you have no changes and are on the default branch in two repositories, there is no visual indication of which repository is the "active" one. _(This has bitten me personally more than once when I create a new branch in the wrong repository by mistake, and I wrote the damn thing.)_
+* When adding a new project folder, the current repository remains the previous one until you open a file within the new folder.
+* Opening a new file that isn't within a git repository causes the git panel to revert to its "initialize here?" state, which is jarring when you want to make quick external edits.
+
+We also have a host of long-standing issues related to identity management:
+
+* There is no way to configure your git username and email address on first install. This means that a new user who doesn't have git installed on their machine already still needs to do so, even though we bundle a git binary as part of Atom! _(Okay, technically, you can create a `~/.gitconfig` with the appropriate values by hand. That kind of sucks though.)_ [#932](https://github.com/atom/github/issues/932)
+* Our Git item provides no indication of what identity it's going to use to create a new commit. This can cause friction for users who use different email addresses for work and personal projects or who wish to use masked `@noreply` email addresses.
+* Our GitHub item provides no indication of the current GitHub user. While I don't expect that managing multiple GitHub accounts is a common need, it can arise in situations like shared machines.
+* Our GitHub item gives you no way to log out or re-authenticate as a different user. _(You can do it by running `GitHub: Logout` from the command palette, but this is not discoverable.)_ [#1693](https://github.com/atom/github/issues/1693)
+
+And, finally, the mechanism to refresh the GitHub tab with new data is completely hidden.
+
+## 🤯 Explanation
+
+### Git context and identity tile
+
+The Git tab has a _context and identity tile_ at its top that displays:
+
+* The GitHub avatar corresponding to your current git identification, as read by `git config user.email`. If no GitHub account is associated with the configured email address, a placeholder is shown instead. On hover, your full git identification is shown in a tooltip (_Real Name <email@address.com>_). Clicking your avatar opens the "introduction" view to allow you to change your configuration.
+* The path to the currently active git repository, shortened in a way [consistent with the way project folders appear in tree-view](https://github.com/atom/tree-view/blob/master/lib/tree-view.coffee#L336). If multiple repositories are available, this is a drop-down menu allowing you to change the active repository.
+
+> "Available" repositories are discovered by taking the set of paths from:
+> * Project root folders
+> * Paths of open pane items
+> * `getWorkingDirectoryPath()` results from open github package pane items
+> Then locating the set of git repositories containing each (if any) using `git rev-parse --show-toplevel` and
+> `git rev-parse --absolute-git-dir`.
+
+![git](https://user-images.githubusercontent.com/378023/52548367-abe86780-2e10-11e9-9dc1-8c4e3c2ad098.png)
+
+### GitHub context and identity tile
+
+The GitHub tab has a _context and identity tile_ at its top that displays:
+
+* The GitHub avatar corresponding to the currently logged-in GitHub user. On hover, the GitHub username is displayed in a tooltip (_@smashwilson_). Clicking your avatar reveals the `GithubLoginView`.
+* The path to the currently active git repository, as in the Git context tile.
+* A refresh button. On click, the information displayed in the GitHub tab is re-fetched.
+
+![github](https://user-images.githubusercontent.com/378023/52548380-b86cc000-2e10-11e9-9899-110306c2153c.png)
+
+### Git introduction view
+
+If you haven't configured `user.email` and `user.name`, the Git tab displays the _introduction view_. This view allows you to see and enter your name and email address.
+
+![identity](https://user-images.githubusercontent.com/378023/52549612-59f71000-2e17-11e9-84ff-c6c36bf5c015.png)
+
+### GitHub login view
+
+![login](https://user-images.githubusercontent.com/378023/52549614-5a8fa680-2e17-11e9-984a-f7eaf20c0f48.png)
+
+**_Part 2 - Additional information_**
+
+## :anchor: Drawbacks
+
+This occupies prime vertical graphical real estate in our already-small dock item display area, which users will likely not need to interact with often.
+
+Not all users have GitHub accounts. Displaying a GitHub avatar on the Git tab item may be off-putting.
+
+## :thinking: Rationale and alternatives
+
+_TBD_
+
+## :question: Unresolved questions
+
+* If only one git repository is available, should we bother rendering it in the drop-down menus, or omit it to save visual noise?
+* Is the avatar-with-tooltip pattern a reasonable compromise to save space?
+* Should we make an attempt to differentiate between multiple git repository paths that share the same basename?
+* Can we detect when a user has configured GitHub's email anonymity and populate their `git user.email` accordingly?
+
+## :warning: Out of Scope
+
+* Configuring different identities for different git repositories. We should read the git user information with `git config`, but always write with `git config --global`.
+
+## :construction: Implementation phases
+
+_TBD_
+
+## :white_check_mark: Feature description for Atom release blog post
+
+_TBD_
+
+<!--
+- When this feature is shipped, what would we like to say or show in our Atom release blog post (example: http://blog.atom.io/2018/07/31/atom-1-29.html)
+- Feel free to drop ideas and gifs here during development
+- Once development is complete, write a blurb for the release coordinator to copy/paste into the Atom release blog
+-->