update

#!/bin/bash

refname="$1"
oldrev="$2"
newrev="$3"
regex="^(refs|fixes) #[0-9]+: [A-Z0-9].+"
merge_message="Merge branch 'master' of"
redmine_host=""
redmine_apikey=""

function info {
  echo >&2 $1
}

function debug {
  debug=false
  if $debug
  then
    echo >&2 $1
  fi
}

function get_json {
  python -c "import sys;import json;j=json.loads(sys.stdin.read());print str(j$1);"
}

function redmine_json {
  curl --silent -k -H "Content-Type: application/json" -X GET -H "X-Redmine-API-Key: $redmine_apikey" "$redmine_host/$1"
}

# Make sure we handle the situation when the branch does not exist yet
if ! [ "$oldrev" = "0000000000000000000000000000000000000000" ] ; then
  excludes=( ^$oldrev )
else
  excludes=( $(git for-each-ref --format '^%(refname:short)' refs/heads/) )
fi

# Get the list of incomming commits
commits=`git rev-list $newrev "${excludes[@]}"`

# For every commit in the list
for commit in $commits
do
  # Check the log message for ticket number
  message=`git log --format=%s -1 $commit`
  if [[ "$message" =~ $regex ]] || [[ "$message" == $merge_message* ]] ;
  then
    debug "Commit message: OK"
  else
    # Define format message for first line in commit message
    info "Commit needs to be \"[refs|fix] #ID: Message, but was $message\""
    exit 1
  fi
  
  issue_id=`echo $var | sed 's/\(refs\|fix\)\ \#\([0-9]*\).*/\2/'`
  issue=`redmine_json "issues/$issue_id\.json"`

  if [[ "$issue" != " " ]]
  then
    debug "Issue exist: OK"
  else
    info "Issue $issue_id don't exist"
    exit 2;
  fi
done