Extracted the do_release Make rule's shell commands to a .sh file

Signed-off-by: Florent Poinsard <florent.poinsard@outlook.fr>

Makefile

@@ -328,6 +328,9 @@ release: docker_base
 	echo "git push origin v$(VERSION)"
 	echo "Also, don't forget the upload releases/v$(VERSION).tar.gz file to GitHub releases"
 
+do_release_2:
+	./tools/do_release.sh
+
 do_release:
 ifndef RELEASE_VERSION
 		echo "Set the env var RELEASE_VERSION with the release version"

tools/do_release.sh

@@ -0,0 +1,66 @@
+#!/bin/bash
+
+# Copyright 2022 The Vitess Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+if [ "$RELEASE_VERSION" == "" ]; then
+		echo "Set the env var RELEASE_VERSION with the release version"
+		exit 1
+fi
+
+if [ "$DEV_VERSION" == "" ]; then
+		echo "Set the env var DEV_VERSION with the version the dev branch should have after release"
+		exit 1
+fi
+
+git_status_output=$(git status --porcelain)
+if [ "$git_status_output" == "" ]; then
+  	echo so much clean
+else
+    echo cannot do release with dirty git state
+    exit 1
+    echo so much win
+fi
+
+cd java && mvn versions:set -DnewVersion=$RELEASE_VERSION
+echo package servenv > go/vt/servenv/version.go
+echo  >> go/vt/servenv/version.go
+echo const versionName = \"$RELEASE_VERSION\" >> go/vt/servenv/version.go
+echo -n Pausing so relase notes can be added. Press enter to continue
+read line
+git add --all
+git commit -n -s -m "Release commit for $RELEASE_VERSION"
+git tag -m Version\ $RELEASE_VERSION v$RELEASE_VERSION
+
+if [ "$GODOC_RELEASE_VERSION" != "" ]; then
+    git tag -a v$GODOC_RELEASE_VERSION -m "Tagging $RELEASE_VERSION also as $GODOC_RELEASE_VERSION for godoc/go modules"
+fi
+
+cd java && mvn versions:set -DnewVersion=$DEV_VERSION
+echo package servenv > go/vt/servenv/version.go
+echo  >> go/vt/servenv/version.go
+echo const versionName = \"$DEV_VERSION)\" >> go/vt/servenv/version.go
+git add --all
+git commit -n -s -m "Back to dev mode"
+echo "Release preparations successful"
+
+if [ "$GODOC_RELEASE_VERSION" != "" ]; then
+	echo "One git tag was created, you can push it with:"
+	echo "   git push upstream v$RELEASE_VERSION"
+else
+  echo "Two git tags were created, you can push them with:"
+  echo "   git push upstream v$RELEASE_VERSION && git push upstream v$GODOC_RELEASE_VERSION"
+fi
+
+echo "The git branch has also been updated. You need to push it and get it merged"