#!/bin/bash
# Automates the task of tagging and making a release of GNU ease.js
#
#  Copyright (C) 2014 Free Software Foundation, Inc.
#
#  This file is part of GNU ease.js.
#
#  This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation, either version 3 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program.  If not, see <http://www.gnu.org/licenses/>.
##

promptabort()
{
  read -p "$1 (y/N) " resp
  case "$resp" in
    [yY]) ;;
    *)
      echo "Aborting." >&2
      exit 1
  esac
}

version="${1?Please specify a version to release}"

# found in gnulib
which gnupload >&/dev/null || {
  echo "fatal: gnupload not found in PATH" >&2
  exit 1
}

# check out tag
git checkout "$version" || {
  [ "$( git symbolic-ref HEAD )" == refs/heads/master ] \
    || echo "WARNING: not on master!" >&2

  promptabort "Tag for $version does not exist; create one?"

  # open editor for announcement
  ${EDITOR:-editor} announce

  # create tag
  git tag -s "$version" -Fannounce
}

# if we have a makefile, clean up; if not, that's fine
[ -f Makefile ] && make distclean

# rebuild and prepare distributions
autoreconf -fvi \
  && ./configure \
  && make dist distdir \
  || exit $?

# create links for gnupload filenames (gnuput does not like symlinks here)
srcln="easejs-$version/build"
ln -f "$srcln/ease.js" ease-"$version".js \
  && ln -f "$srcln/ease.min.js" ease-"$version".min.js \
  || exit $?

# upload JS files and tarball
gnupload --to ftp.gnu.org:easejs --symlink-regex \
  ease-"$version"{,.min}.js \
  easejs-"$version".tar.gz \
  || exit $?

# publish to npm (assumes already logged in); note that failure will not
# abort the process, just in case
npm publish easejs-"$version".tar.gz \
  || echo '!!! npm upload failed!' >&2

# now the website
git checkout website \
  && make clean default webdoc news \
  || exit $?

echo "GNU ease.js $version has been released!"
echo "Please remember to:"
echo "  - Release the webroot after testing locally"
echo "  - Verify successful \`npm publish\`"
echo "  - Send announcement to info-gnu@gnu.org, info-easejs@gnu.org"
echo "  - Place announcement on Savannah"