#!/usr/bin/env bash

#NOTE: you may need change file permissions
#      chmod +x bin/kgitsync

# Set up colour support, if we have it
# Are stdout and  stderr both connected to a terminal
# If not then don't set colours
if [ -t 1 -a -t 2 ]
then
  if tput -V >/dev/null 2>&1
  then
    C_RED=`tput setaf 1`
    C_GREEN=`tput setaf 2`
    C_BROWN=`tput setaf 3`
    C_BLUE=`tput setaf 4`
    C_RESET=`tput sgr0`
  fi
fi


exit_error ()
{
  # dont display if string is zero length
  [  -z "$1" ] || echo "${C_RED}Error: ${C_BROWN} $1 ${C_RESET}"
  exit 1
}


# make sure we are in a git tree
[ "`git rev-parse --is-inside-work-tree`" = "true" ] || exit_error "NOT a git repository"
echo "Repository check OK"

CURRENT_BRANCH=`git branch | awk '/^\*/{print $2}'`

# check that we are on develop or master
#[ "${CURRENT_BRANCH}" = "master" -o "${CURRENT_BRANCH}" = "develop" ] || exit_error "You MUST be on either the master or development branch"
#echo "Branch check OK"

# check that the current branch is clean
[  -z "`git status --porcelain`" ] || exit_error "Working copy has uncommitted changes"
echo "Working copy is clean OK"

# fetch from origin
git fetch origin || exit_error "Failed to fetch from origin"

######################
# Do develop
######################
git checkout develop || exit_error "Failed to checkout develop branch"
echo "Switched to develop"
git merge origin/develop || exit_error "Failed to merge develop from origin"
echo "Develop branch upto date"
git push || exit_error "Failed to push develop to origin"
echo "Develop pushed to origin"

######################
# Do master
######################
git checkout master || exit_error "Failed to checkout master branch"
echo "Switched to master"
git merge  origin/master || exit_error "Failed to merge master from origin"
echo "Master branch upto date"
git push || exit_error "Failed to push master to origin"
echo "Master pushed to origin"

######################
# Do tags
######################
git push --tags || exit_error "Failed to push tags to origin"
echo "Tags pushed to origin"

# return to the current branch
git checkout ${CURRENT_BRANCH} || exit_error "Failed to return to your origional branch ${CURRENT_BRANCH}"

echo "${C_GREEN}Done.  you are on ${CURRENT_BRANCH}${C_RESET}"