1 files changed, 38 insertions, 0 deletions
diff --git a/src/share/yang/modules/utils/check-revisions.sh b/src/share/yang/modules/utils/check-revisions.sh
new file mode 100755
index 0000000..04c9615
--- /dev/null
+++ b/src/share/yang/modules/utils/check-revisions.sh
@@ -0,0 +1,38 @@
+#!/bin/sh
+
+# Copyright (C) 2018-2020 Internet Systems Consortium, Inc. ("ISC")
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# Check revisions
+#
+# This developer script verifies versions in module contents match
+# the version in the name.
+# Requires yanglint to translate YANG to YIN formats.
+# Fixme: use xlstproc to extract the revision.
+
+# Exit with error if commands exit with non-zero and if undefined variables are
+# used.
+set -eu
+
+# Change directory to the YANG modules' directory.
+script_path=$(cd "$(dirname "${0}")" && pwd)
+cd "${script_path}/.."
+
+error=0
+for m in *.yang
+do
+    rev1=$(yanglint -f yin "${m}" | grep '<revision date=' | head -1 | sed \
+ 's/.*<revision date="\([0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]\)".*/\1/')
+    rev2=$(echo "${m}" | sed \
+ 's/.*@\([0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]\)\..*/\1/')
+
+    if test "${rev1}" != "${rev2}"
+    then
+        error=1
+        printf 'revision mismatch on %s got %s\n' "${m}" "${rev1}"
+    fi
+done
+exit $error