#!/bin/bash

# upgpkg: Upgrades package versions in PKGBUILD and starts build.
# Author: Abhishek Dasgupta <abhidg@gmail.com>
#         Thanks to cactus, profjim and daenyth for all the sed help!
# Edited: Florian Pritz <flo@xinu.at>

# I place this script in the public domain.

VERSION=0.6

# from makepkg
unset ALL_OFF BOLD BLUE GREEN RED YELLOW
if [[ -t 2 ]]; then
	# prefer terminal safe colored and bold text when tput is supported
	if tput setaf 0 &>/dev/null; then
		ALL_OFF="$(tput sgr0)"
		BOLD="$(tput bold)"
		BLUE="${BOLD}$(tput setaf 4)"
		GREEN="${BOLD}$(tput setaf 2)"
		RED="${BOLD}$(tput setaf 1)"
		YELLOW="${BOLD}$(tput setaf 3)"
	else
		ALL_OFF="\033[1;0m"
		BOLD="\033[1;1m"
		BLUE="${BOLD}\033[1;34m"
		GREEN="${BOLD}\033[1;32m"
		RED="${BOLD}\033[1;31m"
		YELLOW="${BOLD}\033[1;33m"
	fi
fi
readonly ALL_OFF BOLD BLUE GREEN RED YELLOW

die() {
    local message="$1"
    shift
    printf "$RED==> $(gettext "Error"):$ALL_OFF $(gettext "$message")\n" "$@"
    exit 1
}

warn() {
    local message="$1"
    shift
    printf "$YELLOW==> $(gettext "Warning"):$ALL_OFF $(gettext "$message")\n" "$@"
}

scriptlet() {
  if [ -f "upgpkg" ]; then
    if [[ $(type -t upgpkg_$1) = "function" ]]; then
      upgpkg_$1 || die "\"%s\" scriptlet failed" $1
    fi
  fi
}

help() {
  echo "upgpkg $VERSION"
  printf "$(gettext "usage: upgpkg [options] newver")\n"
  printf "$(gettext "      -h     this help")\n"
  printf "$(gettext "      -g     generate a template ./upgpkg file")\n"
  exit 2
}

if [ -z "$1" ]; then
  help
fi

_newpkgver=$1

while getopts "gh" OPTION; do
  case $OPTION in
    g)
      cat > upgpkg <<EOF
upgpkg_pre_upgrade() {
  # You might want to remove old sources here
  # The new pkgver can be accessed using \$_newpkgver
  true
}

upgpkg_build() {
  makepkg
}
EOF
      exit;
      ;;
    h) help;
  esac
done

[ ! -f PKGBUILD ] && die "No \"%s\" in %s" "PKGBUILD" "$PWD"

if [ -f "upgpkg" ]; then
  source ./upgpkg
fi

source PKGBUILD

scriptlet pre_upgrade

if [[ $(vercmp $1 $pkgver) -le 0 ]]; then
    warn "New version (%s) older or equal to current %s" "$1" "$pkgver"
fi
setconf PKGBUILD pkgver="$_newpkgver"
setconf PKGBUILD pkgrel=1
sed -i "s/pkgver=.*$/pkgver=$_newpkgver/g" PKGBUILD
sed -i "s/pkgrel=.*$/pkgrel=1/g" PKGBUILD
updpkgsums

makepkg --verifysource -d

source PKGBUILD
if [ -f "upgpkg" ]; then
  source ./upgpkg
fi

scriptlet build