A simple buildpack that simply curls a URL defined in BUILDPACK_WEBHOOK_URL.
Useful for Gigalixir or Heroku if you want to notify some other service about each deploy.
To add this buildpack to Gigalixir, you need a .buildpacks file. For example, if you are using mix
https://github.com/gigalixir/gigalixir-buildpack-clean-cache.git
https://github.com/HashNuke/heroku-buildpack-elixir
https://github.com/gjaldon/heroku-buildpack-phoenix-static
https://github.com/gigalixir/gigalixir-buildpack-mix.git
https://github.com/jesseshieh/buildpack-webhook.git
Then set the url to curl, for example
gigalixir config:set -a $APP_NAME BUILDPACK_WEBHOOK_URL="https://www.google.com"
If you need to customize the curl command or need extra information like the current sha,
feel free to send over a pull request and/or fork this and add your fork to your .buildpacks file.