git post-recive hook for pivotal

pivotal_hook

#!/bin/sh
#
# Alexey Ch <ad.defas@gmail.com>
#
# The "post-receive" script is run after receive-pack has accepted a pack
# and the repository has been updated.  It is passed arguments in through
# stdin in the form
#  <oldrev> <newrev> <refname>
# For example:
#  aa453216d1b3e49e7f6f98441fa56946ddcd6a20 68f7abf4e6f922807889f52bc043ecd31b79f814 refs/heads/master
#


# Sets: $change_type
# Assumes: $oldrev $newrev
#
# --- Interpret
# 0000->1234 (create)
# 1234->2345 (update)
# 2345->0000 (delete)
set_change_type() {
    if [ "$oldrev" == "0000000000000000000000000000000000000000" ] ; then
        change_type="create"
    else
        if [ "$newrev" == "0000000000000000000000000000000000000000" ] ; then
            change_type="delete"
        else
            change_type="update"
        fi
    fi
}

# Sets: $newrev_type $oldrev_type $rev $rev_type
# Assumes: $newrev $oldrev
# --- Get the revision types
set_rev_types() {
    newrev_type=$(git cat-file -t "$newrev" 2> /dev/null)
    oldrev_type=$(git cat-file -t "$oldrev" 2> /dev/null)
    if [ "$newrev" == "0000000000000000000000000000000000000000" ] ; then
        rev_type="$oldrev_type"
        rev="$oldrev"
    else
        rev_type="$newrev_type"
        rev="$newrev"
    fi
}

pivotal_hook()
{
# --- Arguments
    oldrev=$(git rev-parse $1)
    newrev=$(git rev-parse $2)
    refname="$3"

    set_change_type
    set_rev_types
    case "$refname","$rev_type" in
        refs/heads/*,commit)
            # branch
            refname_type="branch"
            function="branch"
            short_refname=${refname##refs/heads/}
            #sed reverse rev_list
            rev_list=$(git rev-list $oldrev..$newrev | sed -n '1!G;h;$p')
            while IFS='\n' read -ra ADDR; do 
                for i in "${ADDR[@]}"; do
                    author=$(git rev-list -1 --pretty --format=%cn $i | sed '1d')
                    message=$(git cat-file commit $i | sed '1,/^$/d')
                    message=${message//&/&amp;}
                    message=${message//</&lt;}
                    message=${message//>/&gt;}
                    curl -H "X-TrackerToken: $pivotal_token" -X POST -H "Content-type: application/xml" \
                            -d "<source_commit><message>$message</message><author>*$author*</author><commit_id>$i</commit_id></source_commit>" \
                            http://www.pivotaltracker.com/services/v3/source_commits > /dev/null 2>&1
                    echo >&2 "*** Comment successfuly added"
                done 
            done <<< "$rev_list"
            ;;
        refs/remotes/*,commit)
            # tracking branch
            refname_type="tracking branch"
            short_refname=${refname##refs/remotes/}
            echo >&2 "*** Push-update of tracking branch, $refname"
            echo >&2 "***  - no action."
            exit 0
            ;;
        *)
            # Anything else (is there anything else?)
            echo >&2 "*** Unknown type of update to $refname ($rev_type)"
            echo >&2 "***  - no action"
            exit 1
            ;;
    esac
    
}

pivotal_token="PUT YOU TOKEN HERE"

while read oldrev newrev refname
    do
        pivotal_hook $oldrev $newrev $refname
    done