feat(runner): allow chaning mime type and extension of plain text files

src/main/java/com/swisscom/aem/tools/impl/file/PlainTextFile.java

@@ -4,6 +4,7 @@
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
+import lombok.Setter;
 import lombok.experimental.Delegate;
 import lombok.extern.slf4j.Slf4j;
 
@@ -15,6 +16,14 @@ public class PlainTextFile implements File {
 	@Getter
 	private final String name;
 
+	@Getter
+	@Setter
+	private String mimeType = "text/plain;charset=utf-8";
+
+	@Getter
+	@Setter
+	private String extension = "txt";
+
 	@SuppressWarnings("PMD.AvoidStringBufferField")
 	@Delegate(types = StringBuilder.class)
 	private final StringBuilder result = new StringBuilder();
@@ -26,16 +35,6 @@ public void println() {
 		result.append('\n');
 	}
 
-	@Override
-	public String getMimeType() {
-		return "text/plain;charset=utf-8";
-	}
-
-	@Override
-	public String getExtension() {
-		return "txt";
-	}
-
 	@Override
 	public byte[] getContents() {
 		return result.toString().getBytes(StandardCharsets.UTF_8);

src/test/java/com/swisscom/aem/tools/impl/extension/FileProviderExtensionTest.java

@@ -123,4 +123,24 @@ public void file_plainText() throws HopperException, RepositoryException {
 			runHandler.getLastFile()
 		);
 	}
+
+	@Test
+	public void file_plainTextCustomType() throws HopperException, RepositoryException {
+		runnerService.builder()
+			.runHandler(runHandler)
+			.build(new Script(
+				Arrays.asList(
+					new Declare.Config().withDeclarations(Collections.singletonMap("txt", "file:txt('main')")),
+					new RunScript.Config().withExtension("jexl").withCode("txt.mimeType = 'text/javascript';\ntxt.extension = 'js';\ntxt.append('\"use strict\"')")
+				),
+				LogLevel.DEBUG
+			))
+			.run(context.resourceResolver().adaptTo(Session.class), true);
+
+		assertEquals(
+			"main.js (text/javascript):\n"
+				+ "\"use strict\"",
+			runHandler.getLastFile()
+		);
+	}
 }