Github Sync From Lightning

[zacck]

we want:

To be able to update a lightning projec in github and to be able to make commits to a specific branch, updating some files, when two things happen in lightning:

1. The user hits save on a workflow and they have auto-commit enabled
2. The user clicks “sync” next to a workflow or project (in either case, the whole project will likely be synced unless you know a way to have only the individual workflow get synced.)

Design Doc

https://docs.google.com/document/d/15hhQ1sm1ffKkya2vJdKI44MCMUG85EW5UVuld-M1IhQ/edit

Strategy

• Add a project repo connection with the following keys
  |id | project_id | user_id| installation_id|repo| branch|timestamps
• Before a user is redirected to the installation we need to record their id and the project id, note a user will only have one installation_id that is nil at a time
• Build a controller to receive the installation_id from github and redirect us to the version control settings in project settings
• Build a nested version control settings live view and allow us to redirected to and boot in the correct state that way a user can finish set up
• Once a user is redirected back we need to collect available repos and branches to sync to and enable the user to choose those from a pick list
• User saves repo project connection and is not allowed to sycn and sync is available for editors as well

[zacck]

The work for this is mostly done we are missing a few things though

• We need to use base64 encoding to pass in the github certification
• The github client makes a few http calls to fetch repos and branches, these need to be mocked and tested
• Some intermediary states need to be shown, such as fetching the repos and fetching the branches
• Testing the live views for correct actions and display

[taylordowns2000]

1. if github key isn't provided via ENV, show "Version Control is not configured for this Lightning instance. Contact the superuser for more information."
2. remember to set Application config (:config, blah, blah) in runtime.exs after reading from System.get_env("BLAH") and then use that stuff in the app via Application.get_env()