branchout-group

#!/bin/bash

test -n "${DEBUG}" && set -x
set -e

function branchoutGroupDeriveStdin() {
  # STDIN is always derived
  while read -r each; do
    branchoutGroupDerive "${each}"
  done
}

function branchoutGroupPull() {
  projectGroup="${1}"
  if test -d "${PROJECTION_DIRECTORY}/${projectGroup}"; then
    branchoutGroupUpdate
  else
    branchoutGroupClone
  fi
}

function groupUpdateError() {
  if projectBranch=$(git rev-parse --abbrev-ref HEAD 2>/dev/null); then
    if test "${projectBranch}" = "HEAD"; then
      echo -e "\\033[0m${2}${projectGroup}\\033[70D\\033[70C\\033[38;5;202m<rebase>\\033[0m"
    else
      echo -e "\\033[0m${2}\\033[31m${projectGroup}\\033[0m \\033[70D\\033[70C\\033[1m $( git pull --rebase origin 2>&1| head -n1)\\033[0m"
    fi
  else
    echo -e "\\033[0m${2}${projectGroup}\\033[70D\\033[70C\\033[38;5;202m<empty>\\033[0m"
  fi
}

function branchoutGroupUpdate() {
  cd "${PROJECTION_DIRECTORY}/${projectGroup}" || usage "Failed to enter group directory"
  if test ! -d "${PROJECTION_DIRECTORY}/${projectGroup}/.git"; then
     echo -e "\\033[0mNothing ${projectGroup}\\033[70D\\033[70C\\033[35mNot a repository\\033[0m"
   elif git pull --rebase origin > /dev/null 2>&1; then
    groupStatus "${projectGroup}" "Pulled  "
  else
    groupUpdateError "${projectGroup}" "Failed  "
  fi
}

function branchoutGroupClone() {
  test -d "${PROJECTION_DIRECTORY}/${projectGroup}" && usage "Trying to clone a group that already exists"
  echo -e "\\033[0mCloning \\033[92m${projectGroup}\\033[0m"
  if git clone "${BRANCHOUT_GIT_BASEURL}/${projectGroup}" "${PROJECTION_DIRECTORY}/${projectGroup}" >/dev/null 2>&1; then
    groupStatus "${projectGroup}" "Pulled  "
  else
    echo -e "\\033[0mCloning failed: \\033[31m$(git clone "${BRANCHOUT_GIT_BASEURL}/${projectGroup}" 2>&1)\\033[0m"
    echo -e "\\033[0mJust using plain directory \\033[32m${projectGroup}\\033[0m"
    mkdir "${PROJECTION_DIRECTORY}/${projectGroup}"
  fi
}

function branchoutGroups() {
  "${BRANCHOUT_PATH}/branchout-project" list "${1}" | "${BRANCHOUT_PATH}/branchout-group" derive --stdin | sort | uniq
}

function branchoutGroupDerive() {
  if test "${1#*-}" = "maven-plugin"; then
    echo "plugins"

  elif test -z "${BRANCHOUT_PREFIX}"; then
    echo "${1%%-*}"

  else
    noPrefix="${1#"${BRANCHOUT_PREFIX}"-}"
    echo "${noPrefix%%-*}"
  fi

}

function groupStatus() {
   projectGroup="${1}"
   if test -d "${PROJECTION_DIRECTORY}/${projectGroup}"; then
     cd "${PROJECTION_DIRECTORY}/${projectGroup}" || usage "Failed to enter group directory"

     if projectBranch=$(git rev-parse --abbrev-ref HEAD 2>/dev/null); then
       if test "${projectBranch}" = "master"; then
         echo -e "\\033[0m${2}${projectGroup}\\033[70D\\033[70C${projectBranch}\\033[0m"
       elif test "${projectBranch}" = "HEAD"; then
         echo -e "\\033[0m${2}${projectGroup}\\033[70D\\033[70C\\033[38;5;202m<rebase>\\033[0m"
       else
         echo -e "\\033[0m${2}${projectGroup}\\033[70D\\033[70C\\033[32m${projectBranch}\\033[0m"
       fi
     else
       echo -e "\\033[0m${2}${projectGroup}\\033[70D\\033[70C\\033[38;5;202m<empty>\\033[0m"
     fi
     cd "${PROJECTION_DIRECTORY}"
   else
     echo -e "\\033[0m${2}${projectGroup}\\033[70D\\033[70C\\033[35mNot cloned\\033[0m"
   fi
}


function branchoutProjectDerive() {
  echo "${1}"
}

function usage() {
  test -n "${1}" && echo "${1}" && echo
  echo "branchout-project list|status|pull [project]

  status project-name

      Return the status of the given project, Not cloned, branch, rebasing

  pull project-name

      Attempt to pull the project, show the branch or error

  list [prefix]

      List all the projects with the given prefix

  "

  exit 1
}

function main() {
  test $# -gt 0 || usage

  BRANCHOUT_PATH="$(dirname "$0")"

  # shellcheck source=branchout-configuration
  . "${BRANCHOUT_PATH}/branchout-configuration"
  # shellcheck source=branchout-environment
  . "${BRANCHOUT_PATH}/branchout-environment"

   case $1 in
    derive)
      if test "${2}" = "--stdin"; then
        branchoutGroupDeriveStdin
      else
        branchoutGroupDerive "${2}"
      fi
      ;;
    deriveProject)
      branchoutProjectDerive "${2}"
      ;;
    pull)
      test -n "${2}" || usage "Must provide group"
      if test "${BRANCHOUT_NAME}" != "${2}"; then
        branchoutGroupPull "${2}"
      fi
      ;;
    list)
      branchoutGroups "${2}"
      ;;
    status)
      branchoutGroupStatus "${2}"
      ;;

    *)
      usage
      ;;
  esac
}

main "${@}"