#!/bin/bash

HAS_NODE=`which node 2> /dev/null || which nodejs 2> /dev/null || which iojs 2> /dev/null`

#
# There are some issues with Source Tree because paths are not set correctly for
# the given environment. Sourcing the bash_profile seems to resolve this for users
#
# https://answers.atlassian.com/questions/140339/sourcetree-hook-failing-because-paths-don-t-seem-to-be-set-correctly
#
if [ -z "$HAS_NODE" ] && [ -f ~/.bash_profile ]; then
  source ~/.bash_profile
fi

NODE=`which node 2> /dev/null`
NODEJS=`which nodejs 2> /dev/null`
IOJS=`which iojs 2> /dev/null`
LOCAL="/usr/local/bin/node"
BINARY=

#
# Figure out which binary we need to use for our script execution.
#
if [[ -n "$NODE" ]]; then
  BINARY="$NODE"
elif [[ -n "$NODEJS" ]]; then
  BINARY="$NODEJS"
elif [[ -n "$IOJS" ]]; then
  BINARY="$IOJS"
elif [[ -x "$LOCAL" ]]; then
  BINARY="$LOCAL"
fi

#
# Add --dry-run cli flag support so we can execute this hook without side affects
# and see if it works in the current environment
#
if [[ $* == *--dry-run* ]]; then
  if [[ -z "$BINARY" ]]; then
    exit 1
  fi
else
  "$BINARY" $("$BINARY" -e "console.log(require.resolve('pre-commit'))")
fi