New command

app/src/main/java/ohi/andre/consolelauncher/commands/raw/ls.java

+package ohi.andre.consolelauncher.commands.raw;
+
+/*Copyright Francesco Andreuzzi
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.*/
+
+import java.io.File;
+import java.util.List;
+
+import ohi.andre.consolelauncher.R;
+import ohi.andre.consolelauncher.commands.CommandAbstraction;
+import ohi.andre.consolelauncher.commands.ExecInfo;
+import ohi.andre.consolelauncher.managers.FileManager;
+import ohi.andre.consolelauncher.tuils.ShellUtils;
+import ohi.andre.consolelauncher.tuils.Tuils;
+
+public class ls implements CommandAbstraction {
+
+    @Override
+    public String exec(ExecInfo info) throws Exception {
+        File file = info.get(File.class, 0);
+
+        if (info.getSu()) {
+            ShellUtils.CommandResult result = ShellUtils.execCommand("ls " + file.getAbsolutePath(), true, info.currentDirectory.getAbsolutePath());
+            return result.toString();
+        } else {
+            List<File> files = FileManager.lsFile(file, true);
+            return Tuils.filesToPlanString(files, Tuils.NEWLINE);
+        }
+    }
+
+    @Override
+    public int minArgs() {
+        return 1;
+    }
+
+    @Override
+    public int maxArgs() {
+        return 1;
+    }
+
+    @Override
+    public int[] argType() {
+        return new int[]{CommandAbstraction.FILE};
+    }
+
+    @Override
+    public int priority() {
+        return 3;
+    }
+
+    @Override
+    public int helpRes() {
+        return R.string.help_ls;
+    }
+
+    @Override
+    public int notFoundRes() {
+        return R.string.output_filenotfound;
+    }
+
+    @Override
+    public String onNotArgEnough(ExecInfo info, int nArgs) {
+        info.set(new File[]{info.currentDirectory});
+        try {
+            return exec(info);
+        } catch (Exception e) {
+            return e.toString();
+        }
+    }
+
+    @Override
+    public String[] parameters() {
+        return null;
+    }
+}