#!/bin/sh
set -e

caller=$(ps axww | mawk '/aptitude|apt-get/ {for (i=5; i<=NF ; i++) printf ("%s ",$i); printf ("\n") }' | head -1)

hg addremove 1>/dev/null
STATUS="$(hg st)"

if [ -z "$STATUS" ] ; then
   echo "hg-snapshot-script: nothing to be done"
else
   case "$1" in
        pre)
           echo "hg-snapshot-script: found changed files:"
           hg st
           hg ci -m "snapshot from $LOGNAME before: $caller"
          ;;
        post)
           echo "hg-snapshot-script: found changed files:"
           hg st
           hg ci -m "snapshot from $LOGNAME after: $caller"
          ;;
	*)
           echo "hg-snapshot-script: found changed files:"
           hg st
           hg ci -m "snapshot from $LOGNAME on $(date '+%Y-%m-%d - %H:%M:%S')"
	  ;;
   esac
fi