Writes the SOURCE_VERSION variable (usually the Git SHA) to a file for use by the app.
Originally created by @sreid – with very minor updates by @cristiano2lopes – out of the need to show which Git commit version of an app was running on a Heroku instance. Made possible by the addition of the SOURCE_VERSION variable during the build process. This variable is available during the build process, but not available to a running app, making this approach neccessary. Suggestions and improvements appreciated!
To use this buildpack, the app should already be successfully running the multi buildpack.
Then just add this buildpack in addition to the existing buildpacks in the .buildpacks file:
https://github.com/cristiano2lopes/heroku-buildpack-sourceversion.git
In the application code, read the .commit_hash file that will be created on deployment.
MIT