feat(jbang): make export reproducible

dsl/camel-jbang/camel-jbang-core/src/main/java/org/apache/camel/dsl/jbang/core/commands/Export.java

@@ -17,7 +17,9 @@
 package org.apache.camel.dsl.jbang.core.commands;
 
 import java.io.File;
+import java.text.SimpleDateFormat;
 import java.util.Comparator;
+import java.util.Date;
 import java.util.Properties;
 
 import org.apache.camel.RuntimeCamelException;
@@ -232,4 +234,10 @@ int rankGroupId(MavenGav o1) {
         };
     }
 
+    protected String getBuildMavenProjectDate() {
+        // 2024-09-23T10:00:00Z
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
+        return sdf.format(new Date());
+    }
+
 }

dsl/camel-jbang/camel-jbang-core/src/main/java/org/apache/camel/dsl/jbang/core/commands/ExportCamelMain.java

@@ -187,6 +187,7 @@ private void createMavenPom(File settings, File profile, File pom, Set<String> d
         } else {
             context = context.replaceAll("\\{\\{ \\.MainClassname }}", mainClassname);
         }
+        context = context.replaceFirst("\\{\\{ \\.ProjectBuildOutputTimestamp }}", this.getBuildMavenProjectDate());
 
         Properties prop = new CamelCaseOrderedProperties();
         RuntimeUtil.loadProperties(prop, settings);

dsl/camel-jbang/camel-jbang-core/src/main/java/org/apache/camel/dsl/jbang/core/commands/ExportQuarkus.java

@@ -378,6 +378,7 @@ private void createMavenPom(File settings, File pom, Set<String> deps) throws Ex
         context = context.replaceAll("\\{\\{ \\.QuarkusVersion }}", quarkusVersion);
         context = context.replaceFirst("\\{\\{ \\.JavaVersion }}", javaVersion);
         context = context.replaceFirst("\\{\\{ \\.CamelVersion }}", camelVersion);
+        context = context.replaceFirst("\\{\\{ \\.ProjectBuildOutputTimestamp }}", this.getBuildMavenProjectDate());
 
         context = replaceBuildProperties(context);
 

dsl/camel-jbang/camel-jbang-core/src/main/java/org/apache/camel/dsl/jbang/core/commands/ExportSpringBoot.java

@@ -189,6 +189,7 @@ private void createMavenPom(File settings, File profile, File pom, Set<String> d
         } else {
             context = context.replaceAll("\\{\\{ \\.CamelSpringBootVersion }}", camelVersion);
         }
+        context = context.replaceFirst("\\{\\{ \\.ProjectBuildOutputTimestamp }}", this.getBuildMavenProjectDate());
 
         context = replaceBuildProperties(context);
 

dsl/camel-jbang/camel-jbang-core/src/main/resources/templates/main-pom.tmpl

@@ -9,6 +9,7 @@
 
     <properties>
         <java.version>{{ .JavaVersion }}</java.version>
+        <project.build.outputTimestamp>{{ .ProjectBuildOutputTimestamp }}</project.build.outputTimestamp>
 {{ .BuildProperties }}
 {{ .CamelKubernetesProperties }}
     </properties>

dsl/camel-jbang/camel-jbang-core/src/main/resources/templates/quarkus-pom.tmpl

@@ -9,6 +9,7 @@
     <version>{{ .Version }}</version>
 
     <properties>
+        <project.build.outputTimestamp>{{ .ProjectBuildOutputTimestamp }}</project.build.outputTimestamp>
         <compiler-plugin.version>3.13.0</compiler-plugin.version>
         <failsafe.useModulePath>false</failsafe.useModulePath>
         <maven.compiler.release>{{ .JavaVersion }}</maven.compiler.release>

dsl/camel-jbang/camel-jbang-core/src/main/resources/templates/spring-boot-pom.tmpl

@@ -16,6 +16,7 @@
 
     <properties>
         <java.version>{{ .JavaVersion }}</java.version>
+        <project.build.outputTimestamp>{{ .ProjectBuildOutputTimestamp }}</project.build.outputTimestamp>
 {{ .BuildProperties }}
     </properties>
 

dsl/camel-jbang/camel-jbang-core/src/test/java/org/apache/camel/dsl/jbang/core/commands/ExportTest.java

@@ -166,4 +166,17 @@ private boolean containsDependency(List<Dependency> deps, String group, String a
     private String toGAV(Dependency d) {
         return d.getGroupId() + ":" + d.getArtifactId() + ":" + d.getVersion();
     }
+
+    @ParameterizedTest
+    @MethodSource("runtimeProvider")
+    public void shouldGenerateReproducibleBuild(RuntimeType rt) throws Exception {
+        Export command = createCommand(rt, new String[] { "classpath:route.yaml" },
+                "--gav=examples:route:1.0.0", "--dir=" + workingDir, "--quiet");
+        int exit = command.doCall();
+
+        Assertions.assertEquals(0, exit);
+        Model model = readMavenModel();
+        Assertions.assertNotNull(model.getProperties().get("project.build.outputTimestamp"));
+    }
+
 }