Chained hook with Slack

README.md

mv --no-clobber .git/hooks/post-receive .git/hooks/post-receive-make
curl https://gist.githubusercontent.com/sanmai/ef0c2dd609ae72db03af/raw/chained-hook.sh > .git/hooks/post-receive
curl https://raw.githubusercontent.com/chriseldredge/git-slack-hook/master/git-slack-hook > .git/hooks/post-receive-slack
chmod +x .git/hooks/post-receive-* .git/hooks/post-receive

Configuration:

git config hooks.slack.webhook-url 'https://hooks.slack.com/services/...'
git config hooks.slack.repo-nice-name 'My Awesome Repository'
git config hooks.slack.show-only-last-commit false

chained-hook.sh

#!/bin/bash

# Runs all executable hookname-* hooks and exits after,
# if any of them was not successful.
#
# Based on
# http://osdir.com/ml/git/2009-01/msg00308.html

data=$(cat)
exitcodes=()
hookname=$(basename $0)

# Run each hook, passing through STDIN and storing the exit code.
# We don't want to bail at the first failure, as the user might
# then bypass the hooks without knowing about additional issues.

for hook in $GIT_DIR/hooks/$hookname-*; do
  test -x "$hook" || continue
  echo "$data" | "$hook"
  exitcodes+=($?)
done

# If any exit code isn't 0, bail.

for i in "${exitcodes[@]}"; do
  [ "$i" == 0 ] || exit $i
done