SITES-49657 - Release CIF components 2.18.6

 * map MAVEN_CENTRAL_USERNAME / MAVEN_CENTRAL_PASSWORD into the release job env, so the
   settings.xml placeholders for the Sonatype Central Portal server resolve instead of
   being sent literally (HTTP 401 on the 2.18.6 release run)
 * document the two secrets in the workflow header
 * add a skip.npm.publish property (default false) and honour it on the three
   npm-module-publish executions, so a release deploy can be re-run when the npm
   packages of that version are already published

Author: LSantha

.github/workflows/release.yml

@@ -7,6 +7,7 @@
 #
 # Required secrets:
 #   ARTIFACTORY_CLOUD_USER, ARTIFACTORY_CLOUD_PASS  - Adobe Artifactory (.github/scripts/settings.xml)
+#   MAVEN_CENTRAL_USERNAME, MAVEN_CENTRAL_PASSWORD  - Sonatype Central Portal (.github/scripts/settings.xml)
 #   NPM_TOKEN                                        - npm publish
 #   GPG_PRIVATE_KEY, GPG_PASSPHRASE                  - artifact signing
 #   DEPLOY_QUERIES_SSH_KEY                            - deploy key with push access to
@@ -79,6 +80,8 @@ jobs:
           GPG_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }}
           ARTIFACTORY_CLOUD_USER: ${{ secrets.ARTIFACTORY_CLOUD_USER }}
           ARTIFACTORY_CLOUD_PASS: ${{ secrets.ARTIFACTORY_CLOUD_PASS }}
+          MAVEN_CENTRAL_USERNAME: ${{ secrets.MAVEN_CENTRAL_USERNAME }}
+          MAVEN_CENTRAL_PASSWORD: ${{ secrets.MAVEN_CENTRAL_PASSWORD }}
 
       - name: Clean up secrets
         if: always()

extensions/experience-platform-connector/pom.xml

@@ -109,6 +109,7 @@
                             <goal>npm</goal>
                         </goals>
                         <configuration>
+                            <skip>${skip.npm.publish}</skip>
                             <arguments>publish</arguments>
                         </configuration>
                     </execution>

extensions/product-recs/react-components/pom.xml

@@ -109,6 +109,7 @@
                             <goal>npm</goal>
                         </goals>
                         <configuration>
+                            <skip>${skip.npm.publish}</skip>
                             <arguments>publish</arguments>
                         </configuration>
                     </execution>

parent/pom.xml

@@ -116,6 +116,9 @@
         <!-- By default, webpack will build in development mode -->
         <webpack.prod>false</webpack.prod>
         <webpack.dev>true</webpack.dev>
+
+        <!-- Set to true to re-run a release deploy whose npm packages are already published -->
+        <skip.npm.publish>false</skip.npm.publish>
     </properties>
 
     <!-- ====================================================================== -->

react-components/pom.xml

@@ -109,6 +109,7 @@
                             <goal>npm</goal>
                         </goals>
                         <configuration>
+                            <skip>${skip.npm.publish}</skip>
                             <arguments>publish</arguments>
                         </configuration>
                     </execution>