Feat: Automatically create parent directories of portPropertyFile path

doc/changelog.md

@@ -1,6 +1,7 @@
 # ChangeLog
 * **0.45-SNAPSHOT**:
-
+  - Automatically create parent directories of portPropertyFile path
+
 * **0.44.0** (2024-02-17):
   - Add new option "useDefaultExclusion" for build configuration to handle exclusion of hidden files ([1708](https://github.com/fabric8io/docker-maven-plugin/issues/1708))
   - The <noCache> option is now propagated down to the buildx command, if it is set in the <build> section. ([1717](https://github.com/fabric8io/docker-maven-plugin/pull/1717))

src/main/java/io/fabric8/maven/docker/access/PortMapping.java

@@ -403,6 +403,10 @@ public void write() throws IOException {
 
         private void writeProperties(Properties props, String file) throws IOException {
             File propFile = new File(file);
+            File parent = propFile.getParentFile();
+            if (!parent.exists()) {
+                parent.mkdirs();
+            }
             try (OutputStream os = new FileOutputStream(propFile)) {
                 props.store(os, "Docker ports");
             } catch (IOException e) {

src/test/java/io/fabric8/maven/docker/access/PortMappingPropertyWriteHelperTest.java

@@ -8,6 +8,7 @@
 import java.io.File;
 import java.io.IOException;
 import java.nio.file.Files;
+import java.nio.file.Paths;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.Map;
@@ -84,6 +85,37 @@ void testWriteImageAndGlobal() throws IOException {
         thenPropsContains("other.ip1", "1.2.3.4");
     }
 
+    @Test
+    void testWriteCreatePaths() throws IOException {
+        File dir = Files.createTempDirectory("dmp-").toFile();
+        Assertions.assertTrue(dir.delete());
+        String globalFile = Paths.get(dir.getAbsolutePath(), "dmp-tmp.properties").toFile().getAbsolutePath();
+        PortMapping mapping = createPortMapping("jolokia.port:8080", "18181:8181", "127.0.0.1:9090:9090", "127.0.0.1:other.port:5678");
+
+        // check that we can write on non-existant path with create set to "true"
+        givenAPortMappingWriter(globalFile);
+        whenUpdateDynamicMapping(mapping, "0.0.0.0", 8080, 49900);
+        whenUpdateDynamicMapping(mapping, "127.0.0.1", 5678, 49901);
+        whenWritePortMappings(null, mapping);
+        thenPropsFileExists(globalFile);
+        thenPropsSizeIs(2);
+        thenPropsContains("jolokia.port", 49900);
+        thenPropsContains("other.port", 49901);
+
+        // Check that we can still write in an existing path
+        String globalFile2 = Paths.get(dir.getAbsolutePath(), "dmp-tmp2.properties").toFile().getAbsolutePath();
+        givenAPortMappingWriter(globalFile2);
+        whenUpdateDynamicMapping(mapping, "0.0.0.0", 8080, 49900);
+        whenUpdateDynamicMapping(mapping, "127.0.0.1", 5678, 49901);
+        whenWritePortMappings(null, mapping);
+        thenPropsFileExists(globalFile2);
+        thenPropsSizeIs(2);
+        thenPropsContains("jolokia.port", 49900);
+        thenPropsContains("other.port", 49901);
+
+
+    }
+
     private void givenADockerHostAddress(String host) {
         projProperties.setProperty("docker.host.address", host);
     }