gistfile1.sh

getrev() {
  echo `hg log -r $1` | awk '{print $2}' | awk 'BEGIN {FS=":"} {print $2}' 
}

hgbranchdiff() {
  from=$(getrev "parents(min(branch(.)))")
  to=$(getrev "max(branch(.))")
  hg diff -r $from -r $to
}