ci: reject release if the tag fails any version validation

 - must be consistent in the repo and the tag
 - must be more recent than latest on NPM

This solution requires jq, but that's OK because every runner image on
GitHub Actions has jq pre-installed.

Some of the tests with jq are equivalent to, e.g.,
`npm view dist/packages/web-component version`
but doing them with `jq` allows us to apply them earlier, before we even
make the builds.

.github/workflows/release.yml

@@ -19,6 +19,8 @@ jobs:
     needs: test
     steps:
       - uses: actions/checkout@v4
+      - name: Stop early if the tag fails any validation
+        run: sh validate-version.sh ${{ github.ref_name }}
       # Setup .npmrc file to publish to npm
       - uses: actions/setup-node@v4
         with:
@@ -34,13 +36,6 @@ jobs:
       - name: Check that the web-component bundle was up to date
         run: |
           if git status --porcelain | grep packages/studio-web/src/assets/; then echo ERROR: The web-component bundle is out of date. Please run \"npx nx bundle web-component\" and commit the results, then update the tag and try again.; false; fi
-      - name: Check that the versions are in sync
-        run: |
-          wcver=$(npm view dist/packages/web-component version)
-          nwcver=$(npm view dist/packages/ngx-web-component version)
-          pdep=$(npm view dist/packages/ngx-web-component peerDependencies.@readalongs/web-component)
-          if test "$wcver" != "$nwcver"; then echo ERROR: The ngx-web-component version $nwcver does not match the web-component version $wcver.  Please update packages/web-component/package.json and packages/ngx-web-component/package.json, commit the results, update the tag and try again.; false; fi
-          if test "$pdep" != "$wcver"; then echo ERROR: ngx-web-component has a peerDependency on @readalongs/web-component version $pdep, which does not match the web-component version $wcver.  Please update packages/ngx-web-component/package.json, commit the results, update the tag and try again.; false; fi
       - name: Publish web-component to npmjs
         run: |
           cd dist/packages/web-component && npm publish --access=public

validate-version.sh

@@ -0,0 +1,59 @@
+#!/bin/sh
+
+INPUT_TAG="$1"
+
+if [ -z "$INPUT_TAG" ]; then
+  echo "Usage: $0 <tag>"
+  exit 1
+fi
+
+VERSION=${INPUT_TAG#v}
+BAD=
+
+if [ "$(jq -r .version packages/web-component/package.json)" != "$VERSION" ]; then
+  echo "ERROR: version mismatch in packages/web-component/package.json"
+  BAD=1
+fi
+
+if [ "$(jq -r .version packages/ngx-web-component/package.json)" != "$VERSION" ]; then
+  echo "ERROR: version mismatch in packages/ngx-web-component/package.json"
+  BAD=1
+fi
+
+if [ "$(jq -r '.peerDependencies."@readalongs/web-component"' packages/ngx-web-component/package.json)" != "$VERSION" ]; then
+  echo "ERROR: peer dependency on @readalongs/web-component version mismatch in packages/ngx-web-component/package.json"
+  BAD=1
+fi
+
+if [ "$(jq -r .singleFileBundleVersion packages/studio-web/package.json)" != "$VERSION" ]; then
+  echo "ERROR: singleFileBundleVersion mismatch in packages/studio-web/package.json"
+  BAD=1
+fi
+
+version_less_than() {
+  { echo "$1"; echo "$2"; } | sort -V -C && [ "$1" != "$2" ]
+}
+
+NPM_VERSION_WEBC=$(npm view @readalongs/web-component version)
+echo "Published NPM @readalongs/web-component version: $NPM_VERSION_WEBC"
+NPM_VERSION_NGXWEBC=$(npm view @readalongs/ngx-web-component version)
+echo "Published NPM @readalongs/ngx-web-component version: $NPM_VERSION_NGXWEBC"
+echo "New version: $VERSION"
+
+if [ "$NPM_VERSION_WEBC" != "$NPM_VERSION_NGXWEBC" ]; then
+  echo "WARNING: published NPM @readalongs/web-component and @readalongs/ngx-web-component versions differ"
+fi
+
+if ! version_less_than "$NPM_VERSION_WEBC" "$VERSION"; then
+  echo "ERROR: new version $VERSION is not greater than published NPM @readalongs/web-component version $NPM_VERSION_WEBC"
+  BAD=1
+fi
+
+if ! version_less_than "$NPM_VERSION_NGXWEBC" "$VERSION"; then
+  echo "ERROR: new version $VERSION is not greater than published NPM @readalongs/ngx-web-component version $NPM_VERSION_NGXWEBC"
+  BAD=1
+fi
+
+if [ -n "$BAD" ]; then
+  exit 1
+fi