Sample Git post-receive hook for a Rails/mod_rails app

post-receive.passenger

#!/bin/bash
set -x
export GIT_WORK_TREE=/var/www/tm
export RAILS_ENV=mod_rails
if [ ! -d "$GIT_WORK_TREE" ]; then
  echo "ACK! The specified working tree ($GIT_WORK_TREE) doesn't exist. Quitting." >&2
  exit 3
fi

git checkout -f dev
# Tell Passenger to restart the app
touch $GIT_WORK_TREE/tmp/restart.txt

# Is it safe to run db:migrate on a running production app? Hope so.
cd /var/www/tm
rake db:migrate

# Example post-receive hook using a 'manifest' file to check out only
# specified files.
# -------------------------------------------------------------------
# echo "Fetching the manifest"
# MANIFEST="$GIT_WORK_TREE/manifest"
# git checkout -f master manifest
# if [ $? -ne 0 -o ! -f "$MANIFEST" ]; then
#   echo "ACK! Could not check out the manifest file from MASTER. Quitting." >&2
#   exit 2
# fi
#
# # Otherwise:
# while read file; do
#   # Skip comments
#   if [ ${file:0:1}x = "#x" ]; then
#     continue
#   fi
#   set -x
#   git checkout -f master "$file"
#   set +x
# done < "$MANIFEST"
#
# rm -f "$MANIFEST"