build: set up test plugion version verification

.github/workflows/java-ci-linux-musl.yaml

@@ -14,6 +14,9 @@ jobs:
           java-version: '11'
           distribution: 'adopt'
 
+      - name: Basic plugin version verification
+        run: java -ea scripts/CheckPomVersions.java
+
       - name: Build Docker Image
         run: docker build -f Dockerfile-test-alpine -t alpine-test-image .
 

.github/workflows/java-ci-linux.yaml

@@ -8,10 +8,15 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
+
       - name: Set up JDK 11
         uses: actions/setup-java@v4
         with:
           java-version: '11'
           distribution: 'adopt'
+
+      - name: Basic plugin version verification
+        run: java -ea scripts/CheckPomVersions.java
+
       - name: Build with Maven
         run: mvn --batch-mode --update-snapshots clean test spotless:check ossindex:audit

.github/workflows/java-ci-mac.yaml

@@ -8,10 +8,15 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
+
       - name: Set up JDK 11
         uses: actions/setup-java@v4
         with:
           java-version: '11'
           distribution: 'adopt'
+
+      - name: Basic plugin version verification
+        run: java -ea scripts/CheckPomVersions.java
+
       - name: Build with Maven
         run: mvn --batch-mode --update-snapshots clean test spotless:check ossindex:audit

.github/workflows/java-ci-windows.yaml

@@ -8,10 +8,15 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
+
       - name: Set up JDK 11
         uses: actions/setup-java@v4
         with:
           java-version: '11'
           distribution: 'adopt'
+
+      - name: Basic plugin version verification
+        run: java -ea scripts/CheckPomVersions.java
+
       - name: Build with Maven
         run: mvn --batch-mode --update-snapshots clean test spotless:check ossindex:audit

.github/workflows/release.yaml

@@ -26,6 +26,9 @@ jobs:
           mkdir -p $HOME/.m2
           echo "<settings><servers><server><id>ossrh</id><username>${{ secrets.SONATYPE_USERNAME }}</username><password>${{ secrets.SONATYPE_PASSWORD }}</password></server></servers></settings>" > $HOME/.m2/settings.xml
 
+      - name: Basic plugin version verification
+        run: java -ea scripts/CheckPomVersions.java
+
       - name: Build and Test
         run: mvn --batch-mode --update-snapshots clean test spotless:check ossindex:audit
 

scripts/CheckPomVersions.java

@@ -0,0 +1,55 @@
+/*
+  This script checks the versions of the pom.xml files in the repository.
+  There are two test pom files in this repo: src/test/resources/musl/test-project/pom.xml and
+  src/test/resources/test-project/pom.xml. We want to ensure they use the same version as the plugin version set in the
+  root pom.xml. This script automatically checks if that's the case.
+ */
+
+import org.w3c.dom.Document;
+import org.xml.sax.SAXException;
+
+import java.io.File;
+import java.io.IOException;
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.xpath.*;
+
+public class CheckPomVersions {
+    public static void main(String[] args) {
+        String pluginVersion = getPluginVersion("pom.xml", "/project/version");
+
+        String testProjectUsedVersion = getPluginVersion("src/test/resources/test-project/pom.xml", "/project/build/plugins/plugin[artifactId='dart-sass-maven-plugin']/version");
+        String muslTestProjectUsedVersion = getPluginVersion("src/test/resources/musl/test-project/pom.xml", "/project/build/plugins/plugin[artifactId='dart-sass-maven-plugin']/version");
+
+        assert testProjectUsedVersion != null;
+        assert muslTestProjectUsedVersion != null;
+        assert pluginVersion != null;
+
+        assert pluginVersion.equals(testProjectUsedVersion) : String.format("Plugin version in test-project pom.xml (%s) does not match the root plugin version (%s).", testProjectUsedVersion, pluginVersion);
+        assert pluginVersion.equals(muslTestProjectUsedVersion) : String.format("Plugin version in musl test-project pom.xml (%s) does not match the root plugin version (%s).", muslTestProjectUsedVersion, pluginVersion);
+
+    }
+
+    private static String getPluginVersion(String fileName, String xpathExpression) {
+        try {
+            DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
+
+            File pomFile = new File(fileName);
+
+            Document doc = builder.parse(pomFile);
+
+            XPathFactory xPathfactory = XPathFactory.newInstance();
+
+            XPath xpath = xPathfactory.newXPath();
+
+            XPathExpression expr = xpath.compile(xpathExpression);
+
+            return (String) expr.evaluate(doc, XPathConstants.STRING);
+        } catch (IOException e) {
+            return null;
+        } catch (XPathExpressionException | ParserConfigurationException | SAXException e) {
+            throw new RuntimeException(e);
+        }
+    }
+}