gucl.in

#!/usr/bin/env bash

m4_include(gu_tools.inc.sh)

usage() {
  printf '%s\n' \
      'gucl @VERSION@' \
      '' \
      'gucl deletes and recreate a branch based from ' \
      'a specified branch or from default development branch.' \
      '' \
      'Usage: gucl [-h] [[-R] recreate] [-r remote] [-b branch]' \
      '' \
      '    -h        Show this usage.' \
      '    recreate: Name of the branch to delete and recreate.' \
      '    remote:   Name of the remote to base/create from.' \
      '    branch:   Name of the branch to base/create from.'
}

# defaults
if [ -z "${REMOTE-}" ]; then
  REMOTE=origin
fi

if [ -z "${BRANCH-}" ]; then
  BRANCH=development
fi

# process flags
pointer=1
while [[ $pointer -le $# ]]; do
   if [[ ${!pointer} != "-"* ]]; then ((pointer++)) # not a parameter flag so advance pointer
   else
      param=${!pointer}
      ((pointer_plus = pointer + 1))
      slice_len=1

      case $param in
         # paramter-flags with arguments
         -R|--recreate) RECREATE=${!pointer_plus}; ((slice_len++));;
         -r|--remote) REMOTE=${!pointer_plus}; ((slice_len++));;
         -b|--branch) BRANCH=${!pointer_plus}; ((slice_len++));;

         # binary flags
         -h|--help) HELP=true;;
      esac

      # splice out pointer frame from positional list
      [[ $pointer -gt 1 ]] \
         && set -- ${@:1:((pointer - 1))} ${@:((pointer + $slice_len)):$#} \
         || set -- ${@:((pointer + $slice_len)):$#};
   fi
done

if [ ! -z "${HELP-}" ]; then
  usage
  exit 0
fi

if [ -z "${RECREATE-}" ]; then
  RECREATE=$1
fi

set -e

current_branch=$(git branch | grep "*" | sed 's/* //')
if [ "$current_branch" = "${RECREATE}" ]; then
  echo Switching to a different branch
  if branch_avail_on_remote ${REMOTE} ${BRANCH}; then
    git checkout development
  else
    git checkout master
  fi
fi
if remote_avail ${REMOTE}; then
  read -r -p "You are about delete \"${RECREATE}\" branch and create a new branch based from \"${REMOTE}/${BRANCH}\" branch... Press CTRL-c to cancel or Enter to continue.." -n 1 dummy
  if asksure; then
    git_cleaning && git checkout ${BRANCH} && git pull
    git branch -D ${RECREATE}
    git checkout ${BRANCH} -b ${RECREATE}
  fi
else
  echo The ${REMOTE} is not available.
fi
git checkout $current_branch

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