SVN Monitor: monitor a repository and send a notification whenever a new commit is pushed

watch-svn

#!/usr/bin/env bash
#
# This tool is only working with SVN. I *strongly* advise to use git or mercurial for your everyday work.
# However, somteimes you're stuck with SVN so here's a small script to make your life easier :)
#
# This script is under the MIT license.
# 2017 - cphyc

# Preset parameters
NOTIFYCMD=notify-send
POLLFREQ=10
VERBOSE="false"

# Get the parameters of the call
while [[ $# -ge 1 ]]; do
    key="$1"

    case $key in
	-t|--time)
	    POLLFREQ="$2"
	    shift # past argument
	    ;;
	-v|--verbose)
	    VERBOSE="true"
	    ;;
	-n|--notify-cmd)
	    NOTIFYCMD="$2"
	    shift # past argument
	    ;;
	-h|--help|*)
	    echo "\
SVN repository poller! Usage:
watch-snv [-t TIME] [-v] [-h]

-t, --time	    the time to leave between two polls [def: $POLLFREQ]
-v, --verbose	    verbose, or not verbose, that is the question [def: $VERBOSE]
-n, --notify-cmd    use this command for notification [def: $NOTIFYCMD]

-h, --help	    print this help"
	    exit 0
	    ;;
	*)
            # unknown option
	    ;;
    esac
    shift # past argument or value
done


function svn_is_up_to_date {
    # Svn show updates: show modify files on server in column nine
    nmodified=$(svn status --show-updates -q | cut -b 9 | grep '*' | wc -l)

    return $nmodified
}

function get_upstream_revision {
    # Select upstream revision
    upstream=$(svn status --show-updates -q | grep '*' | cut -b 10-20)
    trimed_upstream="$(echo -e "${upstream}" | tr -d '[:space:]')"

    echo $trimed_upstream
}

function get_local_revision {
    loc=$(svn status --show-updates | tail -n 1 | cut -d ':' -f 2)
    trimed_loc="$(echo -e "${loc}" | tr -d '[:space:]')"

    echo $trimed_loc
}

function notify {
    notify-send "$(pwd) needs update" \
		"Server: rev$(get_upstream_revision), local rev$(get_local_revision)"
}

old_status=-1
# Main loop
while true; do
    [ "$VERBOSE" == "true" ] && echo Polling server at $(date)
    svn_is_up_to_date
    new_status=$?

    if [ "$new_status" != "0" ]; then
	[ "$old_status" != "$new_status" ] && notify
    fi
    sleep $POLLFREQ

    old_status=$new_status
done