#!/bin/bash
set -euxo pipefail

# Read pkg name
PKG=$(awk -F '=' '/pkgname=/{ print $2 }' PKGBUILD)

get_latest_release() {
  curl --silent "https://api.github.com/repos/$1/releases/latest" | # Get latest release from GitHub api
    grep '"tag_name":' |                                            # Get tag line
    sed -E 's/.*"v([^"]+)".*/\1/'                                    # Pluck JSON value
}

# Get latest version
VER=$(get_latest_release nanozuki/dantalian)

# Insert latest version into PKGBUILD
sed -i \
	-e "s/^pkgver=.*/pkgver=${VER}/" \
	PKGBUILD

# Check whether this changed anything
if (git diff --exit-code PKGBUILD); then
	echo "Package ${PKG} has most recent version ${VER}"
	exit 0
fi

# Reset pkgrel
sed -i \
	-e 's/pkgrel=.*/pkgrel=1/' \
	PKGBUILD

# Update source hashes
updpkgsums

# Update .SRCINFO
makepkg --printsrcinfo >.SRCINFO

# Commit changes
git add PKGBUILD .SRCINFO
git commit -m "${PKG} v${VER}"