#!/bin/bash

if [ $# -ne 3 ]; then
	echo "usage: $(basename $0) <pkgname> <reponame> <arch>"
	exit 1
fi

if [ -f "/etc/makepkg.conf" ]; then
	#Get some config info
	. /etc/makepkg.conf
else
	echo "/etc/makepkg.conf does not exist!"
	exit 1
fi

packagename="$1"
reponame="$2"
arch="$3"

export CARCH="$arch"

##### Arch specific stuff. TODO make this configurable #####
ftppath="/home/ftp/$reponame/os/$arch/"
svnpath="file:///home/svn-packages"
svnrepo="$reponame-$arch"
############################################################

[ "$UID" = "" ] && UID=$(uid)

WORKDIR="/tmp/db-remove.$svnrepo.$UID"
LOCKFILE="/tmp/.repolck.$arch.$reponame"

cleanup() {
	# unlock
	rm -f "$LOCKFILE"
	rm -rf "$WORKDIR"
	[ "$1" ] && exit $1
}

ctrl_c() {
	echo "Interrupted" >&2
	cleanup 0
}

die() {
	echo "$*" >&2
	cleanup 1
}

# check for locks
if [ -f "$LOCKFILE" ]; then
	owner="$(/usr/bin/stat -c %U $LOCKFILE)"
	echo "error: db generation is already in progress (started by $owner)"
	exit 1
fi

trap ctrl_c 2
trap cleanup 0

/bin/touch "$LOCKFILE"
/bin/mkdir -p "$WORKDIR"


echo "==> Removing package '$packagename' from '$reponame'..." >&2

cd "$WORKDIR"
/usr/bin/svn checkout -N $svnpath checkout
cd checkout

/usr/bin/svn up -q $packagename
if [ -d "$packagename/repos/$svnrepo" ]; then
	echo "    Removing from subversion"
	/usr/bin/svn rm --force -q "$packagename/repos/$svnrepo"
	/usr/bin/svn commit -q -m "$(basename $0): $packagename removed by $(id -un)"
fi

cd "$WORKDIR"
[ -d build/ ] || mkdir build

# copy the db file into our working area
if [ -f "$ftppath/$reponame.db.tar.$DB_COMPRESSION" ]; then
	cp "$ftppath/$reponame.db.tar.$DB_COMPRESSION" build/
else
	echo "No database found at '$ftpdir', nothing more to do"
	exit 0
fi

echo "    Removing from $reponame DB file"
cd build/
/usr/bin/repo-remove "$reponame.db.tar.$DB_COMPRESSION" $packagename

cp "$reponame.db.tar.$DB_COMPRESSION" "$ftppath/"

echo "Package files will be cleaned up automatically"

cleanup
# vim: set ts=4 sw=4 noet ft=sh: