#!/bin/bash

abort() {
	echo ${1:-'archrelease: Cancelled'}
	exit 1
}

if [[ -z $1 ]]; then
	abort 'Usage: archrelease <repo>'
fi

# TODO: validate repo is really repo-arch

if [[ ! -f PKGBUILD ]]; then
	abort 'archrelease: PKGBUILD not found'
fi

trunk=${PWD##*/}

# Normally this should be trunk, but it may be something
# such as 'gnome-unstable'
IFS='/' read -r -d '' -a parts <<< "$PWD"
if [[ "${parts[@]:(-2):1}" == "repos" ]]; then
	abort 'archrelease: Should not be in repos dir (try from trunk/)'
fi
unset parts

if [[ $(svn status -q) ]]; then
	abort 'archrelease: You have not committed your changes yet!'
fi

echo -n "releasing package to ${1}..."
pushd .. >/dev/null
if [[ -d repos/$1 ]]; then
	declare -a trash
	while read -r file; do
		trash+=("repos/$1/$file")
	done < <(svn ls "repos/$1")
	svn rm -q "${trash[@]}"
fi
if [[ ! -d repos ]]; then
	mkdir repos
	svn add -q repos
fi
if [[ ! -d "repos/$1" ]]; then
	mkdir "repos/${1}"
	svn add -q "repos/${1}"
fi
IFS=$'\n' read -r -d '' -a known_files < <(svn ls "trunk")
for file in "${known_files[@]}"; do
	if [[ ${file:(-1)} = '/' ]]; then
		abort "archrelease: subdirectories are not supported in package directories!"
	fi
done
for file in "${known_files[@]}"; do
	svn copy -q -r HEAD "trunk/$file" "repos/${1}/"
done
svn commit -q -m "archrelease: copy trunk to ${1}" || abort
popd >/dev/null
echo 'done'