fix: Partial rollback of 8c8c909

- Restore changelog.sh script

scripts/changelog.sh

@@ -0,0 +1,126 @@
+#!/bin/bash
+#
+# Copyright (C) 2015 Red Hat, Inc.
+#
+# 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.
+#
+
+trap 'exit' ERR
+
+START_LINK=10
+BASEDIR=$(dirname "$BASH_SOURCE")
+
+function help() {
+ cat <<-END
+Utility script for CHANGELOG.md
+
+Available functions:
+  - extract: Extracts the changelog for a given version
+      Usage: ./changelog.sh extract semVer
+      Example: ./changelog.sh extract 4.9.0
+  - extractWithLinks: Extracts the changelog for a given version and appends links to the referenced issues
+      Usage: ./changelog.sh extractWithLinks semVer [startLinkNumber]
+      Example: ./changelog.sh extractWithLinks 4.9.0 1
+  - emailTemplate: Prepares an e-mail for the release announcement
+      Usage: ./changelog.sh emailTemplate semVer
+      Example: ./changelog.sh emailTemplate 4.9.0
+END
+}
+
+function checkInput() {
+  if [ "$#" -lt 1 ]; then
+    help
+    exit 1;
+  fi
+  dotCount=$(echo "$1" | tr -d -c '.' | wc -c)
+  if [ "$dotCount" -ne 2 ]; then
+      echo "Provided version has an invalid format, should be semver compliant (e.g. 1.3.37)"
+      exit 1;
+  fi
+}
+
+function extractChangelogPortion() {
+  sed -e "/^### ""$1""/,/^### /!d" "$BASEDIR/../CHANGELOG.md"
+}
+
+function removeLastLine() {
+  echo "$1" | sed '$d'
+}
+
+function replaceBullets() {
+  echo -e "$1" | sed -e "s/^*/-/"
+}
+
+function addLinks() {
+  lines=""
+  links=""
+  currentLink="$START_LINK"
+  if [ -n "$2" ]; then currentLink="$2" ; fi
+  while read -r line; do
+    issueNumber=$(echo "$line" | sed -En 's/.*?#([0-9]+).*/\1/p')
+    if [ -z "$issueNumber" ]; then
+      lines+="$line\n";
+    else
+      lines+="$line [$currentLink]\n"
+      links+="[$currentLink] https://github.com/fabric8io/kubernetes-client/issues/$issueNumber\n"
+      currentLink=$((currentLink + 1));
+    fi
+  done < <(echo "$1")
+  echo -e "$lines\n$links";
+}
+
+function extract() {
+  checkInput "$@"
+  changelog=$1
+  changelog=$(extractChangelogPortion "$changelog")
+  changelog=$(removeLastLine "$changelog")
+  changelog=$(replaceBullets "$changelog")
+  echo "$changelog"
+}
+
+function extractWithLinks() {
+  changelog=$(extract "$@")
+  changelog=$(addLinks "$changelog" "$2")
+  echo "$changelog";
+}
+
+function emailTemplate() {
+  checkInput "$@"
+  changelog=$(extract "$@")
+  changelogWithLinks=$(addLinks "$changelog" 2)
+  numberedChangelog=$(echo -e "$changelogWithLinks" | sed '/^$/d' | sed '/^#/d' | sed -E '/^\[[0-9]+\]/d')
+  changelogLinks=$(echo -e "$changelogWithLinks" | sed '/^$/d' | sed '/^#/d' | sed -E '/^\[[0-9]+\]/!d')
+  changelogLinksCount=$(echo -e "$changelogLinks" | wc -l)
+  githubLinkId="["$((changelogLinksCount + 2))"]"
+  gitterLinkId="["$((changelogLinksCount + 3))"]"
+  lines="Release announcement for Fabric8-Kubernetes-Client $1\n\n"
+  lines+="Hi All,\n\n"
+  lines+="We are pleased to announce Fabric8 Kubernetes Client $1 was just released. You can find the release at Maven Central [1].\n\n"
+  lines+="These are the features and fixes included in $1:\n"
+  lines+="$numberedChangelog\n\n"
+  lines+="Your feedback is highly appreciated, you can provide it replying to the mailing list or through the usual channels. $githubLinkId $gitterLinkId\n\n"
+  lines+="[1] https://repo1.maven.org/maven2/io/fabric8/kubernetes-client/$1/\n"
+  lines+="$changelogLinks\n"
+  lines+="$githubLinkId https://github.com/fabric8io/kubernetes-client\n"
+  lines+="$gitterLinkId https://gitter.im/fabric8io/kubernetes-client\n"
+  echo -e "$lines"
+}
+
+if declare -f "$1" > /dev/null ; then
+  "$@"
+elif [ -z "$1" ]; then
+  echo "Please specify a function name" >&2
+else
+  echo "'$1' is not a known function name" >&2
+  exit 1
+fi