#! /usr/bin/env bash

#  This script is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License version 2 as
#  published by the Free Software Foundation.
#
#  See the COPYING and AUTHORS files for more details.

# Don't abort in version or series check.
skip_version_check=1
skip_series_check=1

usage()
{
	printf $"Usage: quilt upgrade\n"
	if [ x$1 = x-h ]
	then
		printf $"
Upgrade the meta-data in a working tree from an old version of quilt to the
current version. This command is only needed when the quilt meta-data format
has changed, and the working tree still contains old-format meta-data. In that
case, quilt will request to run \`quilt upgrade'.
"
		exit 0
	else
		exit 1
	fi
}

options=`getopt -o h -- "$@"`

if [ $? -ne 0 ]
then
	usage
fi

eval set -- "$options"

while true
do
	case "$1" in
	-h)
		usage -h ;;
	--)
		shift
		break ;;
	esac
done

if [ $# -gt 1 ]
then
	usage
fi

# Read in library functions
if ! [ -r $QUILT_DIR/scripts/patchfns ]
then
	echo "Cannot read library $QUILT_DIR/scripts/patchfns" >&2
	exit 1
fi
. $QUILT_DIR/scripts/patchfns

if version_check
then
	printf $"The quilt meta-data in %s are already in the version %s format; nothing to do\n" "$QUILT_PC/" "$DB_VERSION"
	exit 0
fi

printf $"Converting meta-data to version %s\n" "$DB_VERSION"

# Previously we have stripped standard patch extensions (.dif .diff
# .patch .gz .bz2) of patch names; we have used the mangled names in
# .pc/applied-patches, .pc/$patch/, but not in the series file.

for patch in $(applied_patches)
do
	proper_name="$(grep "^$(quote_bre $patch)"'\(\|\.patch\|\.diff?\)\(\|\.gz\|\.bz2\)\([ \t]\|$\)' $SERIES)"
	proper_name=${proper_name#$QUILT_PATCHES/}
	proper_name=${proper_name%% *}
	if [ -z "$proper_name" ]
	then
		failed=1
		break
	fi

	if [ "$patch" != "$proper_name" -a -d $QUILT_PC/$patch ] \
	   && grep -q "^$(quote_bre $patch)\$" \
		   $QUILT_PC/applied-patches
	then
		mv $QUILT_PC/$patch $QUILT_PC/$proper_name \
			|| failed=1
		rename_in_db $patch $proper_name \
			|| failed=1
		[ -z "$failed" ] || break
	fi
done

if [ -n "$failed" ]
then
	printf $"Conversion failed\n" >&2
	printf $"
Please remove all patches using \`quilt pop -a' from the quilt version used to create this working tree, or remove the %s directory and apply the patches from scratch.\n" "$QUILT_PC" >&2
	exit 1
fi
echo $DB_VERSION > $QUILT_PC/.version