Support exporting jar with custom task

jdtls.ext/com.microsoft.jdtls.ext.core/src/com/microsoft/jdtls/ext/core/ProjectCommand.java

@@ -35,6 +35,7 @@
 import org.eclipse.core.runtime.NullProgressMonitor;
 import org.eclipse.core.runtime.Path;
 import org.apache.commons.io.FilenameUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.eclipse.core.resources.IFile;
 import org.eclipse.jdt.core.search.IJavaSearchScope;
 import org.eclipse.jdt.core.search.SearchEngine;
@@ -78,6 +79,12 @@ public MainClassInfo(String name, String path) {
         }
     }
 
+    private static class ClassPath {
+        public String source;
+        public String destination;
+        public boolean isDependency;
+    }
+
     private static class exportResult {
         public boolean result;
         public String message;
@@ -151,7 +158,7 @@ public static exportResult exportJar(List<Object> arguments, IProgressMonitor mo
             return new exportResult(false, "Invalid export Arguments");
         }
         String mainMethod = gson.fromJson(gson.toJson(arguments.get(0)), String.class);
-        String[] classpaths = gson.fromJson(gson.toJson(arguments.get(1)), String[].class);
+        ClassPath[] classpaths = gson.fromJson(gson.toJson(arguments.get(1)), ClassPath[].class);
         String destination = gson.fromJson(gson.toJson(arguments.get(2)), String.class);
         Manifest manifest = new Manifest();
         manifest.getMainAttributes().put(Attributes.Name.MANIFEST_VERSION, "1.0");
@@ -160,15 +167,11 @@ public static exportResult exportJar(List<Object> arguments, IProgressMonitor mo
         }
         try (JarOutputStream target = new JarOutputStream(new FileOutputStream(destination), manifest)) {
             Set<String> directories = new HashSet<>();
-            for (String classpath : classpaths) {
-                if (classpath != null) {
-                    if (classpath.endsWith(".jar")) {
-                        ZipFile zip = new ZipFile(classpath);
-                        writeArchive(zip, true, true, target, directories, monitor);
-                    } else {
-                        File folder = new File(classpath);
-                        writeFileRecursively(folder, target, directories, folder.getAbsolutePath().length() + 1);
-                    }
+            for (ClassPath classpath : classpaths) {
+                if (classpath.isDependency) {
+                    writeArchive(new ZipFile(classpath.source), true, true, target, directories, monitor);
+                } else {
+                    writeFile(new File(classpath.source), new Path(classpath.destination), true, true, target, directories);
                 }
             }
         } catch (Exception e) {
@@ -177,22 +180,6 @@ public static exportResult exportJar(List<Object> arguments, IProgressMonitor mo
         return new exportResult(true);
     }
 
-    private static void writeFileRecursively(File folder, JarOutputStream jarOutputStream, Set<String> directories,
-            int len) {
-        File[] files = folder.listFiles();
-        for (File file : files) {
-            if (file.isDirectory()) {
-                writeFileRecursively(file, jarOutputStream, directories, len);
-            } else if (file.isFile()) {
-                try {
-                    writeFile(file, new Path(file.getAbsolutePath().substring(len)), true, true, jarOutputStream, directories);
-                } catch (Exception e) {
-                    // do nothing
-                }
-            }
-        }
-    }
-
     public static List<MainClassInfo> getMainMethod(List<Object> arguments, IProgressMonitor monitor) throws Exception {
         List<PackageNode> projectList = listProjects(arguments, monitor);
         final List<MainClassInfo> res = new ArrayList<>();

package.json

@@ -476,6 +476,28 @@
         "contents": "You can create a new Java project by clicking the below button.\n[Create new Java project](command:java.project.create)",
         "when": "!java:projectManagerActivated || java:serverMode != Standard"
       }
+    ],
+    "taskDefinitions": [
+      {
+        "type": "java",
+        "properties": {
+          "elements": {
+            "type": "array",
+            "items": {
+              "type": "string"
+            },
+            "description": "%taskDefinitions.java.project.exportJar.elements%"
+          },
+          "mainMethod": {
+            "type": "string",
+            "description": "%taskDefinitions.java.project.exportJar.mainMethod%"
+          },
+          "targetPath": {
+            "type": "string",
+            "description": "%taskDefinitions.java.project.exportJar.targetPath%"
+          }
+        }
+      }
     ]
   },
   "scripts": {
@@ -506,6 +528,7 @@
     "webpack-cli": "^3.3.12"
   },
   "dependencies": {
+    "globby": "11.0.1",
     "fs-extra": "^7.0.1",
     "lodash": "^4.17.20",
     "minimatch": "^3.0.4",

package.nls.json

@@ -24,5 +24,8 @@
   "configuration.java.dependency.autoRefresh": "Synchronize Java Projects explorer with changes",
   "configuration.java.dependency.refreshDelay": "The delay time (ms) the auto refresh is invoked when changes are detected",
   "configuration.java.dependency.packagePresentation": "Package presentation mode: flat or hierarchical",
-  "configuration.java.project.exportJar.targetPath": "The default output path of export jar"
+  "configuration.java.project.exportJar.targetPath": "The default output path of export jar",
+  "taskDefinitions.java.project.exportJar.elements": "The content list of export jar.",
+  "taskDefinitions.java.project.exportJar.mainMethod": "The main method in the manifest of exported jar.",
+  "taskDefinitions.java.project.exportJar.targetPath": "The output path of the exported jar. This will override the setting `configuration.java.project.exportJar.targetPath`."
 }