* Support an empty prefix location mapping name, relates to #65. An empty name matches all paths.

Author: awa-xima

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 See also the [closure compiler changelog](https://github.com/google/closure-compiler/wiki/Releases).
 
+## 2.30.0
+
+* Support an empty prefix location mapping name, relates to #65. An empty name matches all paths.
+
 ## 2.29.0
 
 * Update to closure compiler `v20231112`

README.md

@@ -144,7 +144,7 @@ Then we get the two output files
 
 The source map `bundle.min.map.js` now references the source files as `../../src/webapp/js/index.js`. When your project directory structure resembles your directory structure on the server, then by default, every will just work. If the directory structure is diffrent, [closure compiler offers the option source_map_location_mapping](https://github.com/google/closure-compiler/wiki/Flags-and-Options). For this plugin, this is set with the option:
 
-* [closureSourceMapLocationMappings](https://blutorange.github.io/closure-compiler-maven-plugin/minify-mojo.html#closureSourceMapLocationMappings): When the file name of a source file contains the given prefix, it is replaced with the specified replacement. Here the file name is as it was passed to closure compiler, ie. **relative** to the `sourceDir`
+* [closureSourceMapLocationMappings](https://blutorange.github.io/closure-compiler-maven-plugin/minify-mojo.html#closureSourceMapLocationMappings): When the file name of a source file contains the given prefix, it is replaced with the specified replacement. Here the file name is as it was passed to closure compiler, i.e. **relative** to the `sourceDir`
 
 For the example above, this means that the source file name would be `js/index.js`. We could now set this option to replace `js/` with `https://example.com/sources/`. Now the source map contains a reference to the source file as `https://example.com/sources/index.js`.
 

pom.xml

@@ -6,7 +6,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.github.blutorange</groupId>
 	<artifactId>closure-compiler-maven-plugin</artifactId>
-	<version>2.30.0-SNAPSHOT</version>
+	<version>2.30.0</version>
 	<packaging>maven-plugin</packaging>
 
 	<name>Closure Compiler Maven Plugin</name>

src/main/java/com/github/blutorange/maven/plugin/closurecompiler/common/ClosureConfig.java

@@ -47,6 +47,8 @@
 import com.google.javascript.jscomp.SourceMap.LocationMapping;
 import com.google.javascript.jscomp.SourceMap.PrefixLocationMapping;
 
+import static org.apache.commons.lang3.StringUtils.defaultString;
+
 /**
  * <a href="https://developers.google.com/closure/compiler/">Google Closure Compiler</a> configuration.
  */
@@ -57,7 +59,7 @@ public class ClosureConfig {
   private static final String FILE_PREFIX = "file:";
 
   private static List<? extends LocationMapping> createLocationMappings(ArrayList<ClosureSourceMapLocationMapping> mappings) {
-    return mappings.stream().map(e -> new PrefixLocationMapping(String.valueOf(e.getName()), String.valueOf(e.getValue()))).collect(Collectors.toList());
+    return mappings.stream().map(e -> new PrefixLocationMapping(defaultString(e.getName()), defaultString(e.getValue()))).collect(Collectors.toList());
   }
 
   private static CompilerOptions createCompilerOptions(MinifyMojo mojo) throws MojoFailureException {

src/main/java/com/github/blutorange/maven/plugin/closurecompiler/plugin/MinifyMojo.java

@@ -585,7 +585,7 @@ public class MinifyMojo extends AbstractMojo {
    * Source map location mapping. This is a prefix mapping from the file system path to the web
    * server path. The source map contains a reference to the original source files; and this may be
    * different on the web server. The location of the source file is always relative to the given
-   * {@code baseDir}. This defines a list of replacements. For each source file, the first matching
+   * {@code sourceDir}. This defines a list of replacements. For each source file, the first matching
    * replacement is used. If the source file starts with the prefix as given by the name, it matches
    * and is replaced with the value. For example:
    * 
@@ -602,7 +602,8 @@ public class MinifyMojo extends AbstractMojo {
    * them with {@code /web/www/js/file1.js} and {@code /web/www/js/file2.js}. This is then path that
    * will be used in the source map to reference the original source file. If no location mappings
    * are specified, the path of the source files relative to the created source map is used instead.
-   * 
+   *
+   * If you set the name to an empty string, it matches all paths.
    * @since 2.5.0
    */
   @Parameter(property = "closureSourceMapLocationMappings")

src/test/resources/projects/parent/pom.xml

@@ -11,7 +11,7 @@
 
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<closure.compiler.maven.plugin.version>2.30.0-SNAPSHOT</closure.compiler.maven.plugin.version>
+		<closure.compiler.maven.plugin.version>2.30.0</closure.compiler.maven.plugin.version>
 	</properties>
 
 	<dependencies>

src/test/resources/projects/sourcemap/expected/location-mapping-empty.js

@@ -89,6 +89,24 @@
 							<outputFilename>location-mapping.js</outputFilename>
 						</configuration>
 					</execution>
+                                        <execution>
+                                                <id>location-mapping-empty</id>
+                                                <phase>generate-resources</phase>
+                                                <goals>
+                                                        <goal>minify</goal>
+                                                </goals>
+                                                <configuration>
+                                                        <closureSourceMapLocationMappings>
+                                                                <closureSourceMapLocationMapping>
+                                                                        <name></name>
+                                                                        <value>localhost://bazbar/</value>
+                                                                </closureSourceMapLocationMapping>
+                                                        </closureSourceMapLocationMappings>
+                                                        <closureSourceMapOutputType>reference</closureSourceMapOutputType>
+                                                        <sourceDir>test2/js</sourceDir>
+                                                        <outputFilename>location-mapping-empty.js</outputFilename>
+                                                </configuration>
+                                        </execution>
 					<execution>
 						<id>different-source-map-path</id>
 						<phase>generate-resources</phase>