#!/usr/bin/env sh

# GNU Wget: Make a new release
#
# This is a helper script to make a new release of GNU Wget
#
# Make sure that

set -e
set -o pipefail
set -u

export CFLAGS="-g -O2 -Wall"

EXTENSIONS="gzip lzip"

ask_continue() {
	printf "Continue? [y/N]: "
	read inp
	[ "$inp" != "y" ] && [ "$inp" != "Y" ] && exit 1
	# For some completely weird reason, this set +x is required. Else, the test
	# *ALWAYS* fails
	set +x
}

if [ ! -d ".git" ]; then
	echo "Please run this script from the root of the git repository"
fi

echo "This script will make a new release and upload it to the GNU FTP Servers"
echo "Will run git clean -dxf to get a clean dir"
ask_continue

# Make sure we have a clean working directory
git clean -dxfq

echo "=> Bootstrap"
./bootstrap > /dev/null 2>&1

echo "=> Configure"
./configure -q

APP_NAME=$(grep "^PACKAGE_NAME='" configure | cut -d "'" -f2)
APP_VER=$(grep "^PACKAGE_VERSION='" configure | cut -d "'" -f2)

echo "Making release for $APP_NAME $APP_VER"
ask_continue

NEWS_VERSION=$(grep -i "Changes in $APP_NAME" NEWS | head -1 | awk '{print $5}')
if [ "$NEWS_VERSION" != "$APP_VER" ]; then
	echo "Latest version in NEWS file does not match latest tag"
	exit 1
fi
CUR_VER=$(git describe | sed 's/^v//')
PREV_VER=$(git describe --abbrev=0 --tags $(git rev-list --tags --skip=1 --max-count=1) | sed 's/^v//')
LNO_CVER=$(grep -in "Changes in $APP_NAME" NEWS | head -1 | cut -f1 -d:)
LNO_PVER=$(grep -in "Changes in $APP_NAME" NEWS | head -2 | tail -1 | cut -f1 -d:)
sed -n "${LNO_CVER},${LNO_PVER}p" NEWS
echo "This is the current contents of your NEWS"
ask_continue

echo "=> Make distcheck"
make -s distcheck > /dev/null 2>&1

for ext in $EXTENSIONS; do
	[ "$ext" = 'gz' ] && ext="gzip"
	[ "$ext" = 'lz' ] && ext="lzip"
	echo "=> Making $APP_NAME-$CUR_VER.tar.$ext"
	make -s "dist-$ext" > /dev/null
done

echo ""
REL_TYPE=
REL_LOC=
while [ -z $REL_TYPE ]; do
	printf "Enter release type (alpha, beta, stable): "
	read x
	case $x in
		a|A|alpha|Alpha) REL_TYPE=alpha && REL_LOC="alpha.gnu.org";;
		b|B|beta|Beta) REL_TYPE=beta && REL_LOC="alpha.gnu.org";;
		s|S|stable|Stable) REL_TYPE=stable && REL_LOC="ftp.gnu.org";;
	esac
done

GPG_KEY=
while [ -z $GPG_KEY ]; do
	printf "Enter GPG Key ID for Signing: "
	read key
	gpg --list-keys "$key" || continue
	printf "Will use this key to sign releases. Continue? [y/N]: "
	read x
	[ "$x" = "y" ] || [ "$x" = "Y" ] && GPG_KEY="$key"
done

echo ""

APP_LOWER="$(echo "$APP_NAME" | tr '[:upper:]' '[:lower:]')"
./build-aux/gnupload --to "$REL_LOC:$APP_LOWER" --user "$GPG_KEY" --symlink-regex "$APP_LOWER-$CUR_VER".tar.*

echo ""

build-aux/announce-gen --release-type "$REL_TYPE" --package-name "$APP_LOWER" --previous-version="$PREV_VER" --current-version "$CUR_VER" --gpg-key-id="$GPG_KEY" --url-directory "https://${REL_LOC}/gnu/${APP_LOWER}" --news=NEWS > "$APP_NAME-$APP_VER.announce"

echo ""
echo "Announce email template placed at $APP_NAME-$APP_VER.announce"

prev_tag=$(git tag | tail -2 | head -1)
echo ""
echo "Don't forget to mention the following contributors in the announcement:"
(
  git log "${prev_tag}.." --format="%aN" --reverse
  git log "${prev_tag}.." --reverse | grep -i reported | cut -d':' -f2 | cut -d'<' -f1 | cut -d' ' -f2- | tr -d '"'
) | sort -u