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+#!/bin/bash
+#
+# Copyright 2006-2008 (C) Kees Cook <kees@ubuntu.com>
+# Modified by Siegfried-A. Gevatter <rainct@ubuntu.com>
+# Modified by Daniel Hahler <ubuntu@thequod.de>
+#
+# ##################################################################
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 3
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# See file /usr/share/common-licenses/GPL for more details.
+#
+# ##################################################################
+#
+# By default only the name of the patch system is printed. Verbose mode can be
+# enabled with -v.
+
+if [ "$1" = "-h" ] || [ "$1" = "--help" ]
+then
+ cat <<EOM
+Usage: $0 [-v]
+
+Run this inside the source directory of a Debian package and it will detect
+the patch system that it uses.
+
+ -v: Enable verbose mode:
+ - Print a list of all those files outside the debian/ directory that have
+ been modified (if any).
+ - Report additional details about patch systems, if available.
+EOM
+ exit 0
+fi
+
+while [ ! -r debian/rules ];
+do
+ if [ "$PWD" = "/" ]; then
+ echo "Can't find debian/rules."
+ exit 1
+ fi
+ cd ..
+done
+
+VERBOSE=0
+if [ "$1" = "-v" ]
+then
+ VERBOSE=1
+fi
+
+if [ "$VERBOSE" -gt 0 ]; then
+ files=$(lsdiff -z ../$(dpkg-parsechangelog -SSource)_$(dpkg-parsechangelog -SVersion).diff.gz 2>/dev/null | grep -v 'debian/')
+ if [ -n "$files" ]
+ then
+ echo "Following files were modified outside of the debian/ directory:"
+ echo "$files"
+ echo "--------------------"
+ echo
+ echo -n "Patch System: "
+ fi
+fi
+
+if grep -qF quilt debian/source/format 2>/dev/null; then
+ echo "quilt"
+ exit 0
+fi
+
+# Do not change the output of existing checks by default, as there are build
+# tools that rely on the existing output. If changes in reporting is needed,
+# please check the "VERBOSE" flag (see below for examples). Feel free
+# to add new patchsystem detection and reporting.
+for filename in $(echo "debian/rules"; grep ^include debian/rules | grep -vF '$(' | awk '{print $2}')
+do
+ grep -F patchsys.mk "$filename" | grep -q -v "^#" && {
+ if [ "$VERBOSE" -eq 0 ]; then
+ echo "cdbs"; exit 0;
+ else
+ echo "cdbs (patchsys.mk: see 'cdbs-edit-patch')"; exit 0;
+ fi
+ }
+ grep -F quilt "$filename" | grep -q -v "^#" && { echo "quilt"; exit 0; }
+ grep -F dbs-build.mk "$filename" | grep -q -v "^#" && {
+ if [ "$VERBOSE" -eq 0 ]; then
+ echo "dbs"; exit 0;
+ else
+ echo "dbs (see 'dbs-edit-patch')"; exit 0;
+ fi
+ }
+ grep -F dpatch "$filename" | grep -q -v "^#" && {
+ if [ "$VERBOSE" -eq 0 ]; then
+ echo "dpatch"; exit 0;
+ else
+ echo "dpatch (see 'patch-edit-patch')"; exit 0;
+ fi
+ }
+ grep -F '*.diff' "$filename" | grep -q -v "^#" && {
+ if [ "$VERBOSE" -eq 0 ]; then
+ echo "diff splash"; exit 0;
+ else
+ echo "diff splash (check debian/rules)"; exit 0;
+ fi
+ }
+done
+[ -d debian/patches ] || {
+ if [ "$VERBOSE" -eq 0 ]; then
+ echo "patchless?"; exit 0;
+ else
+ echo "patchless? (did not find debian/patches/)"; exit 0;
+ fi
+}
+if [ "$VERBOSE" -eq 0 ]; then
+ echo "unknown patch system"
+else
+ echo "unknown patch system (see debian/patches/ and debian/rules)"
+fi