# A library of shell functions for building of Debian packages
# (c) 2008--2009 Martin Mares <mj@ucw.cz>
# (c) 2009--2013 Pavel Charvat <pchar@ucw.cz>

# Expects:
# PKG		name of the package
# ROOT		absolute path to the root of the source tree
# PKGVER	custom package version

unset PKG ROOT SRCVER VER

function pkg-git-version {
	TREEVER=`git describe --tags | sed 's/^v//;s/[a-f]$/&-0/'`
	TREEHASH=`git rev-parse --verify HEAD`
	VER=${PKGVER:-$TREEVER}
	SRCVER=${PKGVER:-$VER}
	cat <<EOF
###
### Source tree version: $TREEVER
### Source tree hash: $TREEHASH
### Debian binary package version: $VER
### Debian source package version: $SRCVER
###
### Hey, did you commit everything? Or added it to the index?
###

EOF
}

function pkg-git-checkout {
	BUILDDIR=debian-tmp/$PKG-$SRCVER
	rm -rf debian-tmp
	mkdir -p $BUILDDIR
	git checkout-index -a --prefix=$BUILDDIR/
}

function pkg-fake-changelog {
	echo "Creating automatic changelogs for package $PKG version $VER"
	(
		export EDITOR=true
		CL=debian/changelog
		rm -f $CL
		dch --changelog $CL --create --package $PKG --newversion $VER "Automatic release. See /usr/share/doc/$PKG/changelog for the true story."
		dch --changelog $CL --release
		sed -i '/Initial release/d' $CL
	)
}

function pkg-cleanup {
	echo -n "Press return to delete temp files... "
	read YES
	rm -rf $ROOT/debian-tmp
}

function pkg-get-files {
	echo
	echo "Generated files:"
	FILES=
	unset FILES_ARY[@]
	for F in "$@" ; do
		if [ -f "$F" ] ; then
			FILES="$FILES${FILES:+,}$F"
			FILES_ARY[${#FILES_ARY[@]}]="$F"
			echo "$F"
		fi
	done
	if [ -z "$FILES" ] ; then
		echo "No files found"
		return 1
	fi
}