dmakepkg

#!/bin/bash

set -e
name="$(basename $0)_$(uuidgen)"
set +e
CACHE=''
MAKEPKG=''
SRCDEST=''

usage() {
	cat <<-EOF
	usage: $(basename "$0") [option] [makepkg options]

	Options:
	-x	Use host system's /etc/pacman.conf

	Any non-listed flag will be automatically passed through to makepkg
	with no alterations.
	EOF
}
CACHE=''
CONF=''
MAKEPKG=''

while getopts ":hx" OPTION
do
	case $OPTION in
		h)
			usage
			echo '---------------------------------------'
			docker run --rm --name=$name justin8/makepkg -h
			exit 0
			;;
		x)
			[[ -e '/etc/pacman.conf' ]] && CONF='-v /etc/pacman.conf:/etc/pacman.conf'
			;;
	esac
done

shift $(( OPTIND - 1 ))

# Using -e instead of -d incase it is a symlink
[[ -e '/var/cache/pacman/pkg' ]] && CACHE='-v /var/cache/pacman/pkg:/var/cache/pacman/pkg'

if [[ -f '/etc/makepkg.conf' ]]
then
	MAKEPKG='-v /etc/makepkg.conf:/etc/makepkg.conf'

	SRCDEST=''
	srcdest_path=$(grep '^\s*SRCDEST=' /etc/makepkg.conf | cut -d= -f2)
	if [[ -n $srcdest_path ]]; then
		SRCDEST="-v ${srcdest_path}:${srcdest_path}"
	fi

	PKGDEST=''
	pkgdest_path=$(grep '^\s*PKGDEST=' /etc/makepkg.conf | cut -d= -f2)
	if [[ -n $pkgdest_path ]]; then
		PKGDEST="-v ${pkgdest_path}:${pkgdest_path}"
	fi

	SRCPKGDEST=''
	srcpkgdest_path=$(grep '^\s*SRCPKGDEST=' /etc/makepkg.conf | cut -d= -f2)
	if [[ -n $srcpkgdest_path ]]; then
		SRCPKGDEST="-v ${srcpkgdest_path}:${srcpkgdest_path}"
	fi

	LOGDEST=''
	logdest_path=$(grep '^\s*LOGDEST=' /etc/makepkg.conf | cut -d= -f2)
	if [[ -n $logdest_path ]]; then
		LOGDEST="-v ${logdest_path}:${logdest_path}"
	fi
fi

docker run --name "$name" \
	   --rm \
	   --net=host \
	   -v $(pwd):/src \
	   $CACHE \
	   $CONF \
	   $MAKEPKG \
	   $SRCDEST \
	   $PKGDEST \
	   $SRCPKGDEST \
	   $LOGDEST \
	   justin8/makepkg -u "$EUID" -g "$(id -g $EUID)" "$@"
rc=$?

exit $rc