update tag.sh to create signed tags. (#604)

* update tag.sh to create signed tags.

* rm tag_latest_modulesh.sh

tag.sh

@@ -74,11 +74,11 @@ TAG_CURRENT=`git tag | grep '^v' | tail -1`
 PACKAGE_DIRS=$(find . -mindepth 2 -type f -name 'go.mod' -exec dirname {} \; | egrep -v 'tools' | sed 's/^\.\///' | sort)
 
 # Create tag for root module
-git tag -a "${TAG}" -m "Version ${TAG}" ${COMMIT_HASH}
+git tag -a "${TAG}" -s -m "Version ${TAG}" ${COMMIT_HASH}
 
 # Create tag for submodules
 for dir in $PACKAGE_DIRS; do
-	git tag -a "${dir}/${TAG}" -m "Version ${dir}/${TAG}" ${COMMIT_HASH}
+	git tag -a "${dir}/${TAG}" -s -m "Version ${dir}/${TAG}" ${COMMIT_HASH}
 done
 
 # Generate commit logs

tag_latest_modules.sh

@@ -1,27 +0,0 @@
-#!/bin/sh
-
-# Copyright The OpenTelemetry 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.
-
-set -xe
-
-cd $(dirname $0)
-
-LATEST_TAG=$(git tag -l|grep '^v'|sort -V -r|head -n 1)
-LATEST_REF=$(git rev-parse $LATEST_TAG)
-PACKAGE_DIRS=$(find . -mindepth 2 -type f -name 'go.mod' -exec dirname {} \; | sort)
-
-for dir in $PACKAGE_DIRS; do
-	git tag -m "Submodule ${LATEST_TAG}" -s ${dir#./}/${LATEST_TAG} ${LATEST_REF}
-done