[ci] build and publish installer

no need to build on mac CI

Author: duncdrum

.github/workflows/ci-release.yml

@@ -2,10 +2,13 @@ name: Release
 
 # Triggered by an eXist-* tag (created by ci-release-prepare.yml).
 # Four jobs run in parallel then converge on a single GitHub Release:
-#   build-linux   — Maven Central deploy + zip/tar archives (Ubuntu; installer excluded)
+#   build-linux   — Maven Central deploy + zip/tar archives (Ubuntu)
 #   build-mac     — signed + notarized DMG (macOS; installer excluded)
-#   build-windows — signed installer JAR + Authenticode .exe (Windows)
+#   build-windows — jarsigner + Authenticode signed installer JAR + .exe (Windows)
 #   publish-github-release — collects all artifacts, creates the GitHub Release
+#
+# The installer JAR is built and deployed to Maven Central from build-linux (GPG-signed).
+# The Windows job re-builds and jarsigner-signs it for the GitHub Release download.
 
 on:
   push:
@@ -78,7 +81,6 @@ jobs:
             -Ddependency-check.skip=true \
             -Dlicense.skip=true \
             -Dexistdb.release.key="$EXISTDB_RELEASE_KEY_ID" \
-            --projects '!exist-installer' \
             clean deploy
 
       - name: Collect distribution archives

exist-installer/pom.xml

@@ -53,6 +53,12 @@
         <izpack.installation.info.appversion>${project.version}</izpack.installation.info.appversion>
         <izpack.installation.info.author.name>${project.organization.name}</izpack.installation.info.author.name>
         <izpack.installation.info.author.email>${contact.email}</izpack.installation.info.author.email>
+
+        <!-- This module has no Java sources. Suppress the real source/javadoc plugins
+             activated by the release-build profile; placeholder JARs are produced
+             instead to satisfy Maven Central requirements. -->
+        <maven.source.skip>true</maven.source.skip>
+        <maven.javadoc.skip>true</maven.javadoc.skip>
     </properties>
 
     <dependencies>
@@ -124,20 +130,36 @@
                 </configuration>
             </plugin>
 
+            <!-- Produce placeholder -sources.jar and -javadoc.jar for Maven Central.
+                 Central requires these for all non-pom artifacts; a README is
+                 sufficient when there are no Java sources to document. -->
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-install-plugin</artifactId>
-                <configuration>
-                    <skip>true</skip>
-                </configuration>
-            </plugin>
-
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-deploy-plugin</artifactId>
-                <configuration>
-                    <skip>true</skip>
-                </configuration>
+                <artifactId>maven-jar-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>placeholder-sources</id>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>jar</goal>
+                        </goals>
+                        <configuration>
+                            <classifier>sources</classifier>
+                            <classesDirectory>${project.basedir}/src/main/resources</classesDirectory>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <id>placeholder-javadoc</id>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>jar</goal>
+                        </goals>
+                        <configuration>
+                            <classifier>javadoc</classifier>
+                            <classesDirectory>${project.basedir}/src/main/resources</classesDirectory>
+                        </configuration>
+                    </execution>
+                </executions>
             </plugin>
         </plugins>
     </build>

exist-installer/src/main/resources/README.md

@@ -0,0 +1,3 @@
+This artifact contains no Java sources or Javadoc.
+The eXist-db IzPack installer is a self-contained cross-platform installer JAR.
+Project sources: https://github.com/eXist-db/exist

exist-versioning-release.md

@@ -111,7 +111,7 @@ The `ci-release.yml` workflow runs four jobs in parallel then converges:
 | Job | Runner | Output |
 |-----|--------|--------|
 | `build-linux` | ubuntu-latest | zip + tar.bz2 archives + installer JAR; deploy all to Maven Central (GPG-signed) |
-| `build-mac` | macos-latest | signed + notarized DMG; installer JAR built (not deployed) |
+| `build-mac` | macos-latest | signed + notarized DMG (installer excluded) |
 | `build-windows` | windows-latest | jarsigner + Authenticode signed installer JAR + `.exe` for GitHub Release |
 | `publish-github-release` | ubuntu-latest | GitHub Release with all assets attached |