ons

#!/usr/bin/env zsh
set -eu

# Helper for developing and testing GitHub Actions. Some assumptions:
#
# - You have a dev repo separate from the main repo where the actions will
#   ultimately be deployed (deployment is out of scope here).
#
# - Your dev repo has additional test files for workflows, themselves
#   implemented as workflows and using the naming convention <foo>-test.yml.
#
# - Your local working copy directory structure for the dev repo is
#   :org/:repo/.

# Run this script after saving edits to your local {workflow,workflow-test}.yml
# files, and it will commit, push, and run your tests within GitHub Actions.

changed_files=$(
  git status --porcelain \
    | awk '{print $2}'
)
helpers=$(
  echo "${changed_files}" \
    | grep '^.github/workflows/test-helpers' \
    | sed -e 's/^.github\/workflows\/test-helpers\///'
)

if [ ${helpers} ]; then
  echo "Helpers changed (will run all tests):"
  for helper in ${helpers}; do
    echo "  ${helper}"
  done
  tests=$(
    ls .github/workflows/*-test.yml
  )
else 
  tests=$(
    git status --porcelain \
      | awk '{print $2}' \
      | grep '^.github/workflows/[^/]*\.yml'
  )
fi

if [ ${tests} ]; then
  tests=$(
    echo "${tests}" \
      | sed -e 's/^.github\/workflows\///' \
      | sed -e 's/-test//' \
      | uniq \
      | sed -e 's/\.yml$/-test.yml/'
  )
  echo "Will run these tests:"
  for test in ${tests}; do
    # Merp. Would be better to remove from ${tests}.
    test -f ".github/workflows/${test}" || continue  
    echo "  ${test}"
  done
else
  echo "No tests will be run."
fi

git add .
git commit -m 'save'
git push

# `gh api` supports :owner and :repo in URLs but that's not working well for
# me with a multi-remote setup (origin and upstream). I'm working around that
# by inferring these from the filesystem.

repo=$(basename $(pwd))
owner=$(basename $(dirname $(pwd)))

for test in ${tests}; do
  test -f ".github/workflows/${test}" || continue
  DEBUG=1 gh api \
    --method POST \
    --input <(echo '{"ref":"main"}') \
    --silent \
    "repos/${owner}/${repo}/actions/workflows/${test}/dispatches"
done