Trigger a Gitlab CI build with 'git build'

git-build

#!/bin/sh

project_id=`git config gitlab.project-id`
if [ -z "$project_id" ] ; then
  echo "FATAL: could not find gitlab.project-id on your config"
  echo "To fix: use 'git config gitlab.project-id ID'"
  echo "        find the project ID in the Settings > Triggers page,"
  echo "        in the examples, it is the number in the URL"
  exit 1
fi

token=`git config gitlab.trigger-token`
if [ -z "$token" ] ; then
  echo "FATAL: could not find gitlab.trigger-token on your config"
  echo "To fix: use 'git config gitlab.trigger-token TOKEN'"
  echo "        you can create a TOKEN on your project page, Settings > Triggers"
  exit 1
fi

branch="${1:-`git name-rev --name-only HEAD`}"
if [ -z "$branch" ] ; then
  echo "FATAL: could not determine branch to build"
  echo "To fix: use 'git build BRANCH', or try to understand why"
  echo "        'git name-rev --name-only HEAD' returns nothing..."
  exit 1
fi

echo "Triggering build for branch '$branch'"
curl -X POST \
     -F "token=$token" \
     -F "ref=$branch" \
     -F "variables[BUILD_VIA]=git-build" \
     "https://gitlab.com/api/v3/projects/$project_id/trigger/builds"