#!/bin/bash

set -ex

# Ensure all the tools we need are available
ensureAvailable() {
  eval $1 --version >/dev/null || (echo "You need to install $1" && exit 2)
}
ensureAvailable dpkg-deb
ensureAvailable fpm
ensureAvailable fakeroot
ensureAvailable lintian
ensureAvailable rpmbuild

PACKAGE_TMPDIR=tmp/debian_pkg
VERSION=`node dist/bin/pm2 --version`
TARBALL_NAME=dist/pm2-v$VERSION.tar.gz
DEB_PACKAGE_NAME=pm2_$VERSION'_all.deb'
OUTPUT_DIR=artifacts

if [ ! -e $TARBALL_NAME ]; then
  echo "Hey! Listen! You need to run build-dist.sh first."
  exit 1
fi;

mkdir -p $OUTPUT_DIR
# Remove old packages
rm -f dist/*.deb $OUTPUT_DIR/*.deb $OUTPUT_DIR/*.rpm

# Extract to a temporary directory
rm -rf $PACKAGE_TMPDIR
mkdir -p $PACKAGE_TMPDIR/
tar zxf $TARBALL_NAME -C $PACKAGE_TMPDIR/

# Create Linux package structure
mkdir -p $PACKAGE_TMPDIR/usr/share/pm2/
mkdir -p $PACKAGE_TMPDIR/usr/share/doc/pm2/
mv $PACKAGE_TMPDIR/dist/bin $PACKAGE_TMPDIR/usr/share/pm2/
mv $PACKAGE_TMPDIR/dist/lib $PACKAGE_TMPDIR/usr/share/pm2/
mv $PACKAGE_TMPDIR/dist/constants.js $PACKAGE_TMPDIR/usr/share/pm2/
mv $PACKAGE_TMPDIR/dist/paths.js $PACKAGE_TMPDIR/usr/share/pm2/
mv $PACKAGE_TMPDIR/dist/index.js $PACKAGE_TMPDIR/usr/share/pm2/
#mv $PACKAGE_TMPDIR/dist/lib-legacy $PACKAGE_TMPDIR/usr/share/pm2/
mv $PACKAGE_TMPDIR/dist/node_modules $PACKAGE_TMPDIR/usr/share/pm2/
mv $PACKAGE_TMPDIR/dist/package.json $PACKAGE_TMPDIR/usr/share/pm2/
cp packager/debian/copyright $PACKAGE_TMPDIR/usr/share/doc/pm2/copyright

# These are unneeded and throw lintian lint errors
rm -f $PACKAGE_TMPDIR/usr/share/pm2/node_modules/node-uuid/benchmark/bench.gnu
find $PACKAGE_TMPDIR/usr/share/pm2 \( -name '*.md' -o  -name '*.md~' -o -name '*.gitmodules' \) -delete

# Assume everything else is junk we don't need
rm -rf $PACKAGE_TMPDIR/dist

# Currently the "binaries" are JavaScript files that expect to be in the same
# directory as the libraries, so we can't just copy them directly to /usr/bin.
# Symlink them instead.
mkdir -p $PACKAGE_TMPDIR/usr/bin/
ln -s ../share/pm2/bin/pm2 $PACKAGE_TMPDIR/usr/bin/pm2

# Common FPM parameters for all packages we'll build using FPM
FPM="fpm --input-type dir --chdir $PACKAGE_TMPDIR --name pm2 --version $VERSION "`
  `"--vendor 'Keymetrics <contact@PM25.io>' --maintainer 'Alexandre Strzelewicz <alexandre@PM25.io>' "`
  `"--url https://pm2.io/ --license AGPLv3 --description '$(cat packager/debian/description)'"

##### Build RPM (CentOS, Fedora) package
eval "$FPM --output-type rpm  --architecture noarch --depends nodejs --category 'Development/Languages' ."
mv *.rpm $OUTPUT_DIR

##### Build DEB (Debian, Ubuntu) package
mkdir -p $PACKAGE_TMPDIR/DEBIAN
mkdir -p $PACKAGE_TMPDIR/usr/share/lintian/overrides/
cp packager/debian/lintian-overrides $PACKAGE_TMPDIR/usr/share/lintian/overrides/pm2

# Debian/Ubuntu call the Node.js binary "nodejs", not "node".
sed -i 's/env node/env nodejs/' $PACKAGE_TMPDIR/usr/share/pm2/bin/pm2

# Replace variables in Debian package control file
INSTALLED_SIZE=`du -sk $PACKAGE_TMPDIR | cut -f 1`
sed -e "s/\$VERSION/$VERSION/;s/\$INSTALLED_SIZE/$INSTALLED_SIZE/" < packager/debian/control.in > $PACKAGE_TMPDIR/DEBIAN/control
fakeroot dpkg-deb -b $PACKAGE_TMPDIR $DEB_PACKAGE_NAME
mv $DEB_PACKAGE_NAME $OUTPUT_DIR

rm -rf $PACKAGE_TMPDIR

# Lint the Debian package to ensure we're not doing something silly
lintian $OUTPUT_DIR/$DEB_PACKAGE_NAME
