scripts: add prepare-release.xh

A helper script for preparing the release branch.

.github/ISSUE_TEMPLATE/new-release.md

@@ -15,12 +15,8 @@ Please do not remove items from the checklist
 - [ ] For major releases (v0.$MAJ.0), an OWNER creates a release branch with
       `git branch release-0.$MAJ master`
 - [ ] Prepare `release-0.$MAJ` release branch
-  - [ ] Update the deployment templates to use the new tagged container image:
-        `sed s"|image: .*|image: k8s.gcr.io/nfd/node-feature-discovery:$VERSION|" -i *yaml.template`
-  - [ ] Update quick start instructions in README.md to use $VERSION
-  - [ ] Update version configuration in `docs/_config.yml`:
-        - set `version: $VERSION`
-        - add $VERSION to `versions:` list
+  - [ ] Run `scripts/prepare-release.sh $VERSION` to turn references to point to the upcoming release
+        (README, deployment templates, docs .md files, docs configuration, test/e2e flags)
   - [ ] An OWNER runs
        `git tag -s $VERSION`
         and inserts the changelog into the tag description.

scripts/prepare-release.sh

@@ -0,0 +1,80 @@
+#!/bin/bash -e
+set -o pipefail
+
+this=`basename $0`
+
+usage () {
+cat << EOF
+Usage: $this [-h] RELEASE_VERSION
+
+Options:
+  -h         show this help and exit
+EOF
+}
+
+#
+# Parse command line
+#
+while getopts "h" opt; do
+    case $opt in
+        h)  usage
+            exit 0
+            ;;
+        *)  usage
+            exit 1
+            ;;
+    esac
+done
+shift "$((OPTIND - 1))"
+
+# Check that no extra args were provided
+if [ $# -gt 1 ]; then
+    echo -e "ERROR: unknown arguments: $@\n"
+    usage
+    exit 1
+fi
+
+release=$1
+container_image=k8s.gcr.io/nfd/node-feature-discovery:$release
+
+#
+# Check/parse release number
+#
+if [ -z "$release" ]; then
+    echo -e "ERROR: missing RELEASE_VERSION\n"
+    usage
+    exit 1
+fi
+
+if [[ $release =~ ^(v[0-9]+\.[0-9]+)(\..+)?$ ]]; then
+    docs_version=${BASH_REMATCH[1]}
+else
+    echo -e "ERROR: invalid RELEASE_VERSION '$release'"
+    exit 1
+fi
+
+# Patch docs configuration
+echo Patching docs/_config.yml
+sed -e s"/release:.*/release: $release/"  \
+    -e s"/version:.*/version: $docs_version/" \
+    -i docs/_config.yml
+
+# Patch container image repo
+echo Patching '*.md' files to refer to $container_image
+find . -path ./docs/vendor -prune -o -name '*.md' -print | xargs \
+    sed -i -e s"!gcr.io/k8s-staging-nfd/node-feature-discovery:[[:alnum:]][[:alnum:].-]*!$container_image!" \
+           -e s"!k8s.gcr.io/nfd/node-feature-discovery:[[:alnum:]][[:alnum:].-]*!$container_image!"
+
+# Patch README
+echo Patching README.md to refer to $release
+sed s"!node-feature-discovery/v.*/!node-feature-discovery/$release/!" -i README.md
+
+# Patch deployment templates
+echo Patching '*.yaml.template' to use $container_image
+sed -E s",^([[:space:]]+)image:.+$,\1image: $container_image," -i *yaml.template
+
+# Patch e2e test
+echo Patching test/e2e/node_feature_discovery.go flag defaults to k8s.gcr.io/nfd/node-feature-discovery and $release
+sed -e s'!"nfd\.repo",.*,!"nfd.repo", "k8s.gcr.io/nfd/node-feature-discovery",!' \
+    -e s"!\"nfd\.tag\",.*,!\"nfd.tag\", \"$release\",!" \
+  -i test/e2e/node_feature_discovery.go