autorelease, autotag: Tag and release non-alpha prereleases too (#36482)

It has been a longstanding request to auto-tag and auto-release
non-alpha prerelease versions, particularly betas. Let's make that
happen.

Note that even-numbered "-a.n" versions for Jetpack are considered
alphas, while odd-numbered versions are not (they're what we release to
Atomic). Right now Jetpack doesn't use the auto-tagger or auto-release,
but I see that we've been manually tagging the odd-numbered 'a'
versions in jetpack-production.

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/8374616227

.github/files/autorelease.sh

@@ -9,11 +9,17 @@ set -eo pipefail
 : "${GITHUB_REPOSITORY:?Build argument needs to be set and non-empty.}"
 
 ## Determine tag
-if [[ ! "$GITHUB_REF" =~ ^refs/tags/v?[0-9]+(\.[0-9]+)+$ ]]; then
+if [[ ! "$GITHUB_REF" =~ ^refs/tags/v?[0-9]+(\.[0-9]+)+(-[a-z0-9._-]+)?$ ]]; then
 	echo "::error::Expected GITHUB_REF like \`refs/tags/v1.2.3\` or \`refs/tags/1.2.3\`, got \`$GITHUB_REF\`"
 	exit 1
 fi
 TAG="${GITHUB_REF#refs/tags/}"
+
+## Check for alphas
+if [[ "$TAG" =~ -(alpha|a\.[0-9]*[02468])$ ]]; then
+	echo "Not creating a release for alpha version $TAG"
+	exit 0
+fi
 echo "Creating release for $TAG"
 
 ## Determine slug and title format.

.github/workflows/autorelease.yml

@@ -4,8 +4,11 @@ on:
   push:
     tags:
       - 'v?[0-9]+.[0-9]+'
+      - 'v?[0-9]+.[0-9]+-*'
       - 'v?[0-9]+.[0-9]+.[0-9]+'
+      - 'v?[0-9]+.[0-9]+.[0-9]+-*'
       - 'v?[0-9]+.[0-9]+.[0-9]+.[0-9]+'
+      - 'v?[0-9]+.[0-9]+.[0-9]+.[0-9]+-*'
 
 jobs:
   publish:

.github/workflows/autotagger.yml

@@ -63,7 +63,7 @@ jobs:
           VER=$(sed -nEe 's/^## \[?([^]]*)\]? - .*/\1/;T;p;q' CHANGELOG.md || true)
           echo "Version from changelog is ${VER:-<unknown>}"
           echo "version=$VER" >> "$GITHUB_OUTPUT"
-          if [[ "$VER" =~ ^[0-9]+(\.[0-9]+)+$ ]]; then
+          if [[ "$VER" =~ ^[0-9]+(\.[0-9]+)+(-[a-z0-9._-]+)?$ && ! "$VER" =~ -(alpha|a\.[0-9]*[02468])$ ]]; then
             echo "Version $VER ok to tag"
             echo "run=true" >> "$GITHUB_OUTPUT"
           else
@@ -77,7 +77,7 @@ jobs:
         run: |
           RUN=true
           if [[ -e composer.json ]]; then
-            TMP=$(jq -r '.require // {} | to_entries[] | select( .value | test( "-(alpha|a.[0-9]+)$" ) ) | "\(.key) (\(.value))"' composer.json)
+            TMP=$(jq -r '.require // {} | to_entries[] | select( .value | test( "-(alpha|a\\.[0-9]*[02468])$" ) ) | "\(.key) (\(.value))"' composer.json)
             if [[ -n "$TMP" ]]; then
               echo "::notice::Not tagging due to -alpha deps on ${TMP//$'\n'/ }"
               RUN=false