From 0fa997bd578cc40b972d106efb7c04a848f63fda Mon Sep 17 00:00:00 2001
From: Razvan Becheriu <razvan@isc.org>
Date: Fri, 20 Nov 2020 13:12:28 +0200
Subject: [PATCH] [#1438] added bump version script

---
 tools/bump_lib_versions.sh | 62 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100755 tools/bump_lib_versions.sh

diff --git a/tools/bump_lib_versions.sh b/tools/bump_lib_versions.sh
new file mode 100755
index 0000000000..00afd170bf
--- /dev/null
+++ b/tools/bump_lib_versions.sh
@@ -0,0 +1,62 @@
+#!/bin/bash
+set -x
+
+old_release_tag=${1}
+new_release_tag=${2}
+
+is_stable_release() {
+	version=$(echo ${1} | cut -d . -f2)
+	if [ $((version % 2)) -eq 0 ]; then
+		echo 1;
+	else
+		echo 0;
+	fi
+}
+
+find_latest_stable_release_tag() {
+	tag_pattern=${1}
+	for version in $(git tag | grep ${tag_pattern} | tac); do
+		if [ $(is_stable_release ${version}) -eq 1 ]; then
+			echo ${version}
+			return
+		fi
+	done
+}
+
+is_old_tag_stable_release=$(is_stable_release ${old_release_tag})
+is_new_tag_stable_release=$(is_stable_release ${new_release_tag})
+
+# if any file has changed in a specific library director
+# there are 4 possible cases
+# 1. old release is stable and new release is stable
+#    new_version = old_version + 1
+# 2. old release is stable and new release is development
+#    new_version = old_version + 11
+# 3. old release is development and new release is development
+#    if latest development has already added 10 it means that the old_release version is different than latest_stable version
+#        new_version = old_version + 1
+#    else it means that the old_release has not incremented the version since latest_stable
+#        new_version = old_version + 11
+# 4. old release is development and new release is stable
+#    illegal as there should only be stable to stable bump lib versions
+
+if [ ${is_old_tag_stable_release} -eq 0 && ${is_new_tag_stable_release} -eq 1 ]; then
+	echo "illegal bumb lib versions from development release to stable release"
+	exit 1
+fi
+
+latest_stable_release_tag=$(find_latest_stable_release_tag $(echo ${old_release_tag} | cut -d . -f1))
+increment_extra=10
+increment=1
+
+for lib in $(git diff ${old_release_tag} --name-only src/lib/ | cut -d "/" -f 3 | uniq); do
+	old_version=$(cat src/lib/${lib}/Makefile.am | grep "\-version\-info" | tr -s ' ' | rev | cut -d " " -f 1 | rev | cut -d ":" -f 1)
+	new_version=$((old_version + ${increment}))
+	if [ ${is_new_tag_stable_release} -eq 0 ]; then
+		if [ ${is_old_tag_stable_release} -eq 1 ] || [ $(git diff ${latest_stable_release_tag} ${old_release_tag} src/lib/${lib}/Makefile.am | grep "\-version\-info" | wc -l) -eq 0 ]; then
+			new_version=$((new_version + ${increment_extra}))
+		fi
+	fi
+	sed -i "s/version-info .*/version-info ${new_version}:0:0/" src/lib/${lib}/Makefile.am
+done
+