gistfile1.txt

#!/usr/bin/env bash

source $(dirname $0)/scriptlib

TMP=/tmp/_git_hamlize_tmp
TARGET_FILES="$*"
REQUIRED_GEMS="hpricot ruby_parser"

function move_and_hamlize {
  for F in $TARGET_FILES
    do
      BASE_PATH_NAME="$(basename $F .html.erb)"
      echo "Git-Moving ${BASE_PATH_NAME}.html.erb to ${BASE_PATH_NAME}.html.haml"
      git mv ${BASE_PATH_NAME}.html.erb ${BASE_PATH_NAME}.html.haml
      html2haml -r ${BASE_PATH_NAME}.html.haml > $TMP
      mv $TMP ${BASE_PATH_NAME}.html.haml
    done
}

function all_gems_present {
for gem in $REQUIRED_GEMS
  do
    if [ "$(gem list $gem | grep $gem | wc -l | sed -e 's/^ *//')" != "1" ]; then
      return -1
    fi
  done
  return 0
}

if all_gems_present; then
  move_and_hamlize
else
  fail "$0 requires the following gems: $REQUIRED_GEMS"
fi