post-receive

#!/bin/bash

trap 'error_handler' ERR

function error_handler {
  echo "🚨 An error occurred, deploy failed"
  exit 1
}

# Clone the project as a bare repo, and install this hook at $GIT_DIR/hooks/post-receive
# Then add git remote locally, e.g. git remote add prod <server>:$TARGET
# to deploy: git push prod master
# make sure $TARGET exists on the server beforehand

TARGET="/srv/receptdatabasen"
GIT_DIR="/srv/receptdatabasen.git"

# shellcheck disable=SC2162
# shellcheck disable=SC2034
while read oldrev newrev ref
do
    if [[ $ref =~ .*/master$ ]];
    then
        echo "Master ref received.  Deploying master branch to production..."
        git --work-tree=$TARGET --git-dir=$GIT_DIR checkout -f
        cd $TARGET || error_handler
        OLDREV=$oldrev NEWREV=$newrev REF=$ref $TARGET/scripts/deploy.sh
        echo "🚀 Deployed $newrev"
    else
        echo "Ref $ref successfully received.  Doing nothing: only the master branch may be deployed on this server."
    fi
done