#!/bin/sh

if [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
  echo 'install_hooks

  Installs git hooks in the powscript local repository.

  Currently only a pre-push hook exists, it will check before each push to
  remote if there is no trailling whitespace, .tools/compile was executed
  (easy to forget!) and that all tests pass. There are a few enviroment
  variables that affect the pre-push script:

  POWSCRIPT_PREPUSH_NOWHITESPACE:
    If set to 'yes' the script will not check for trailling whitespace

  POWSCRIPT_PREPUSH_NOCOMPILE:
    If set to 'yes' the script will not check for compilation

  POWSCRIPT_PREPUSH_NOTESTS:
    If set to 'yes' the script will not run the tests

  POWSCRIPT_NOPREPUSH:
    If set to 'yes' the script will not do anything

  To uninstall the hook simply run `rm .git/hooks/pre-push` on the main powscript directory.
  '
  exit 0
elif [ "$#" -gt 0 ]; then
  echo 'Invalid arguments to install_hooks script.
  To execute the script run `install_hooks` with no arguments or run `install_hooks --help` to get more information.
  '
fi
(
  GitHooks="pre-push"

  cd "$(git rev-parse --show-toplevel)"
  for hook in $GitHooks; do
    cp .tools/hooks/$hook .git/hooks/$hook
  done
)