check-patch-files.sh: initial commit

The check-patch-files script checks that all patch files in the
given directory are annotated with an 'Upstream-Status', and
that all patch files are at least noted in their top-level
directory (so we can assume they are used).

In case a violation is detected, it returns a non-zero exit code,
so that a travis-ci reports a violation as build failure.

scripts/check-patch-files.sh

@@ -0,0 +1,39 @@
+#!/bin/sh
+#
+# Copyright (c) 2014, BMW Car IT GmbH
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+#
+
+violation_found=no
+for patch_file in $(find $1 -name *.patch)
+do
+    if [ "$(grep 'Upstream-Status: ' $patch_file | wc -l)" -eq "0" ]; then
+        echo "$patch_file: missing Upstream-Status line"
+        violation_found=yes
+    fi
+    if [ "$(grep -d skip "file://$(basename $patch_file)" $(dirname $patch_file)/../* | wc -l)" -eq "0" ]; then
+        echo "$patch_file: not used in any recipe"
+        violation_found=yes
+    fi
+done
+
+if [ "$violation_found" = "yes" ]; then
+    exit 1
+fi