[DROOLS-6495] Implement backward compatibility test for compiled kjar

- WIP
apache · Aug 28, 2023 · 43a27aa · 43a27aa
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diff --git a/.github/workflows/pr-drools-backward-compatibility.yml b/.github/workflows/pr-drools-backward-compatibility.yml
@@ -0,0 +1,50 @@
+name: Drools Backward Compatibility
+
+on:
+  pull_request:
+    paths-ignore:
+      - 'LICENSE'
+      - '**/.gitignore'
+      - '**.md'
+      - '**.adoc'
+      - '*.txt'
+      - 'docsimg/**'
+      - '.ci/jenkins/**'
+
+jobs:
+  drools-build:
+    concurrency:
+      group: pr-drools-backward-compatibility_${{ matrix.os }}_${{ matrix.java-version }}_${{ matrix.maven-version }}_${{ github.head_ref }}
+      cancel-in-progress: true
+    timeout-minutes: 120
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+        java-version: [11]
+        maven-version: ['3.8.7']
+      fail-fast: false
+    runs-on: ${{ matrix.os }}
+    name: ${{ matrix.os }} / Java-${{ matrix.java-version }} / Maven-${{ matrix.maven-version }}
+    steps:
+      - name: Clean Disk Space
+        uses: kiegroup/kie-ci/.ci/actions/ubuntu-disk-space@main
+        if: ${{ matrix.os == 'ubuntu-latest' }}
+      - name: Support long paths
+        if: ${{ matrix.os == 'windows-latest' }}
+        uses: kiegroup/kie-ci/.ci/actions/long-paths@main
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Java and Maven Setup
+        uses: kiegroup/kie-ci/.ci/actions/maven@main
+        with:
+          java-version: ${{ matrix.java-version }}
+          maven-version: ${{ matrix.maven-version }}
+          cache-key-prefix: ${{ runner.os }}-${{ matrix.java-version }}-maven${{ matrix.maven-version }}
+      - name: Build Drools
+        run: mvn -B clean install -DskipTests
+      - name: Backward Compatibility Test with previous minor version
+        run: |
+          CURRENT_VERSION=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)
+          PREVIOUS_VERSION=$(script/utils/get_previous_version.sh $CURRENT_VERSION)
+          mvn -B clean install --file drools-reference-examples/pom.xml -Preference -Dreference.kjar.drools.version=$PREVIOUS_VERSION
+        shell: bash
diff --git a/bom/drools-bom/pom.xml b/bom/drools-bom/pom.xml
@@ -1026,6 +1026,41 @@
         <version>${project.version}</version>
         <classifier>sources</classifier>
       </dependency>
+
+      <dependency>
+        <groupId>org.drools</groupId>
+        <artifactId>drools-reference-examples-common</artifactId>
+        <version>${project.version}</version>
+      </dependency>
+      <dependency>
+        <groupId>org.drools</groupId>
+        <artifactId>drools-reference-examples-common</artifactId>
+        <version>${project.version}</version>
+        <classifier>sources</classifier>
+      </dependency>
+      <dependency>
+        <groupId>org.drools</groupId>
+        <artifactId>drools-reference-examples-kjar</artifactId>
+        <version>${project.version}</version>
+      </dependency>
+      <dependency>
+        <groupId>org.drools</groupId>
+        <artifactId>drools-reference-examples-kjar</artifactId>
+        <version>${project.version}</version>
+        <classifier>sources</classifier>
+      </dependency>
+      <dependency>
+        <groupId>org.drools</groupId>
+        <artifactId>drools-reference-examples-runner</artifactId>
+        <version>${project.version}</version>
+      </dependency>
+      <dependency>
+        <groupId>org.drools</groupId>
+        <artifactId>drools-reference-examples-runner</artifactId>
+        <version>${project.version}</version>
+        <classifier>sources</classifier>
+      </dependency>
+
       <dependency>
         <groupId>org.drools</groupId>
         <artifactId>drools-docs</artifactId>

diff --git a/drools-reference-examples/README.md b/drools-reference-examples/README.md
@@ -0,0 +1,11 @@
+`drools-reference-examples` contains internal reference examples which can be used for smoke tests, backward compatibility tests, etc.
+
+To run the project, enable the `reference` profile:
+
+    cd drools-reference-examples
+    mvn clean install -Preference
+
+By default, kjar projects are built with the current project version of `kie-maven-plugin`. To build with a specific version of `kie-maven-plugin`, use `reference.kjar.drools.version` property:
+
+    mvn clean install -Preference -Dreference.kjar.drools.version=8.39.0.Final
+
diff --git a/drools-reference-examples/drools-reference-examples-common/pom.xml b/drools-reference-examples/drools-reference-examples-common/pom.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>org.drools</groupId>
+    <artifactId>drools-reference-examples</artifactId>
+    <version>8.44.0-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>drools-reference-examples-common</artifactId>
+
+  <name>Drools reference examples :: Common</name>
+  <description>Pojo classes for kjar and tests</description>
+
+  <properties>
+    <java.module.name>org.drools.reference.examples.common</java.module.name>
+  </properties>
+
+</project>
diff --git a/...rence-examples-common/src/main/java/org/drools/reference/examples/helloworld/Message.java b/...rence-examples-common/src/main/java/org/drools/reference/examples/helloworld/Message.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2023 Red Hat, Inc. and/or its affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.drools.reference.examples.helloworld;
+
+public class Message {
+
+    public static final int HELLO = 0;
+    public static final int GOODBYE = 1;
+
+    private String message;
+
+    private int status;
+
+    public Message() {
+
+    }
+
+    public String getMessage() {
+        return this.message;
+    }
+
+    public void setMessage(final String message) {
+        this.message = message;
+    }
+
+    public int getStatus() {
+        return this.status;
+    }
+
+    public void setStatus(final int status) {
+        this.status = status;
+    }
+}
diff --git a/drools-reference-examples/drools-reference-examples-kjar/pom.xml b/drools-reference-examples/drools-reference-examples-kjar/pom.xml
@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>org.drools</groupId>
+    <artifactId>drools-reference-examples</artifactId>
+    <version>8.44.0-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>drools-reference-examples-kjar</artifactId>
+  <packaging>kjar</packaging>
+
+  <name>Drools reference examples :: kjar</name>
+  <description>Reference example kjar</description>
+
+  <properties>
+    <java.module.name>org.drools.reference.examples.kjar</java.module.name>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>org.drools</groupId>
+      <artifactId>drools-reference-examples-common</artifactId>
+    </dependency>
+
+    <!-- use specified drools version to build a kjar -->
+    <dependency>
+      <groupId>org.drools</groupId>
+      <artifactId>drools-engine</artifactId>
+      <version>${reference.kjar.drools.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>org.drools</groupId>
+      <artifactId>drools-model-compiler</artifactId>
+      <version>${reference.kjar.drools.version}</version>
+    </dependency>
+
+    <dependency>
+      <groupId>ch.qos.logback</groupId>
+      <artifactId>logback-classic</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-enforcer-plugin</artifactId>
+        <executions>
+          <execution>
+            <!-- suppress enforcer no-managed-deps -->
+            <id>no-managed-deps</id>
+            <phase>none</phase>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.kie</groupId>
+        <artifactId>kie-maven-plugin</artifactId>
+        <version>${reference.kjar.drools.version}</version>
+        <extensions>true</extensions>
+      </plugin>
+    </plugins>
+  </build>
+
+</project>
diff --git a/...reference-examples/drools-reference-examples-kjar/src/main/resources/META-INF/kmodule.xml b/...reference-examples/drools-reference-examples-kjar/src/main/resources/META-INF/kmodule.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<kmodule xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://www.drools.org/xsd/kmodule">
+    <kbase name="HelloWorldKB" packages="org.drools.reference.examples.helloworld">
+        <ksession name="HelloWorldKS"/>
+    </kbase>
+</kmodule>
diff --git a/...-examples-kjar/src/main/resources/org/drools/reference/examples/helloworld/HelloWorld.drl b/...-examples-kjar/src/main/resources/org/drools/reference/examples/helloworld/HelloWorld.drl
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2023 Red Hat, Inc. and/or its affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.drools.reference.examples.helloworld
+
+import org.drools.reference.examples.helloworld.Message;
+
+global java.util.List list
+
+rule "Hello World"
+    dialect "mvel"
+    when
+        m : Message( status == Message.HELLO, message : message )
+    then
+        System.out.println( message );
+        list.add( message );
+        modify ( m ) { message = "Goodbye cruel world",
+                       status = Message.GOODBYE };
+end
+
+rule "Good Bye"
+    dialect "java"
+    when
+        Message( status == Message.GOODBYE, message : message )
+    then
+        System.out.println( message );
+        list.add( message );
+end
diff --git a/drools-reference-examples/drools-reference-examples-tests/pom.xml b/drools-reference-examples/drools-reference-examples-tests/pom.xml
@@ -0,0 +1,67 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>org.drools</groupId>
+    <artifactId>drools-reference-examples</artifactId>
+    <version>8.44.0-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>drools-reference-examples-tests</artifactId>
+
+  <name>Drools reference examples :: tests</name>
+  <description>Reference example tests</description>
+
+  <properties>
+    <java.module.name>org.drools.reference.examples.tests</java.module.name>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>org.drools</groupId>
+      <artifactId>drools-reference-examples-common</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.drools</groupId>
+      <artifactId>drools-reference-examples-kjar</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.drools</groupId>
+      <artifactId>drools-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.drools</groupId>
+      <artifactId>drools-xml-support</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.kie</groupId>
+      <artifactId>kie-ci</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>ch.qos.logback</groupId>
+      <artifactId>logback-classic</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-api</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.assertj</groupId>
+      <artifactId>assertj-core</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+</project>