#!/bin/bash

# This simple script will look at all named branches in a given repository
# and print out any branch that contains multiple open heads. This is useful
# to see if your repository is clean or if someone has pushed multiple
# anonymous branches.
# Retrieve the branch list. The format will contain other garbage, so only
# grab the name of the branch using gawk. You could use awk if required.
#branchlist=`hg branches | awk '{print $1}'`
branchlist=`hg branches --template '{branch}\n'`

# Iterate through the branches and find the one(s) that contain multiple heads.
IFS=$'\n'       # make newlines the only separator
for branch in ${branchlist[@]}
do
  heads=`hg heads "$branch" --template "{node}\n"`
  count=$(echo "$heads" | wc -l);
  if [ "$count" != "1" ] ; then
    echo -e "\nMultiple heads for '$branch'"
    hg heads "$branch" --template "branch='{branch}', node={node}, rev={rev}\n"
  else
    printf "\nNo multiple heads for '$branch'";
  fi
done

echo -e "\n\n Script complete"