Migrate mercurial repository to git

hgtogit.sh

#!/bin/bash
function abort() {
  echo "ERROR: $1"
  echo ""
  echo "USAGE: $0 /path/to/new/repo"
  exit 1
}

[ $# -eq 1 ] || abort "Invalid parameters count"
[ -d .hg ] || abort "should run this script in an existing mercurial directory"
[ -d $1 ] && abort "$1 should not exist"

TARGET="$1"
GIT="git --git-dir=$TARGET"
BRANCHES=`hg branches | cut -f 1 -d " "`

mkdir -p "$TARGET"
$GIT init --bare

for branch in $BRANCHES; do
  hg bookmark -f "git-$branch" -r $branch
done

hg push $TARGET

for branch in $BRANCHES; do
  case $branch in
    default) new_branch="master" ;;
    *) new_branch=$branch
  esac
  $GIT branch -m "git-$branch" "$new_branch"
done