Git post-commit hook that sends an approximation of GitHub's 'push' webhook after every commit. Helpful for testing code that consumes those webhooks.

post-commit

#!/usr/bin/env ruby

# Git post-commit hook that sends an approximation of GitHub's 'push' webhook
# after every commit. Helpful for testing code that consumes those webhooks.
#
# To set this up:
#  1. Create a local repo where you'll make test commits
#  2. Copy this script to .git/hooks/post-commit
#  3. Make it executable: `chmod +x .git/hooks/post-commit`
#  4. Change the `uri` variable below to where webhooks should be sent
#  5. Make some commits and your app will receive webhook-like requests
#
# Note: this sends the webhook as form-encoded data, not JSON.

require 'json'
require 'net/http'
require 'uri'

uri = 'http://my-app.dev/github/post-receive' # Add your webhook URL here

ref = `git rev-parse --symbolic-full-name HEAD`.strip
before = `git rev-list --max-count=1 HEAD~1`.strip
after = `git rev-list --max-count=1 HEAD`.strip
repository_url = `pwd`.strip

commits = [{
    message: `git log --max-count=1 --format='%B' HEAD`.strip,
    author: {
      name: `git show --no-patch --format='%an' HEAD`.strip
    }
}]

payload = {
  ref: ref,
  before: before,
  after: after,
  commits: commits,
  repository: {
    url: repository_url
  }
}

Net::HTTP.post_form(URI.parse(uri), { payload: payload.to_json })