minor: input file might not exist.

apktool-cli/src/main/java/brut/apktool/Main.java

@@ -18,6 +18,7 @@ package brut.apktool;
 
 import brut.androlib.*;
 import brut.androlib.err.CantFindFrameworkResException;
+import brut.androlib.err.InFileNotFoundException;
 import brut.androlib.err.OutDirExistsException;
 import java.io.File;
 import java.io.IOException;
@@ -122,6 +123,11 @@ public class Main {
                 "Destination directory (" + outDir.getAbsolutePath() + ") " +
                 "already exists. Use -f switch if you want to overwrite it.");
             System.exit(1);
+        } catch (InFileNotFoundException ex) {
+            System.out.println(
+                "Input file (" + args[i] + ") " +
+                "was not found or was not readable.");
+            System.exit(1);
         } catch (CantFindFrameworkResException ex) {
             System.out.println(
                 "Can't find framework resources for package of id: " +

apktool-lib/src/main/java/brut/androlib/ApkDecoder.java

@@ -16,6 +16,7 @@
 
 package brut.androlib;
 
+import brut.androlib.err.InFileNotFoundException;
 import brut.androlib.err.OutDirExistsException;
 import brut.androlib.res.AndrolibResources;
 import brut.androlib.res.data.ResPackage;
@@ -64,6 +65,10 @@ public class ApkDecoder {
             throw new OutDirExistsException();
         }
 
+        if (! mApkFile.isFile() || ! mApkFile.canRead() ) {
+            throw new InFileNotFoundException();
+        }
+
         try {
             OS.rmdir(outDir);
         } catch (BrutException ex) {

apktool-lib/src/main/java/brut/androlib/err/InFileNotFoundException.java

@@ -0,0 +1,40 @@
+/**
+ *  Copyright 2011 Ryszard Wiśniewski <brut.alll@gmail.com>
+ *
+ *  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.
+ */
+
+package brut.androlib.err;
+
+import brut.androlib.AndrolibException;
+
+/**
+ * @author Ryszard Wiśniewski <brut.alll@gmail.com>
+ */
+public class InFileNotFoundException extends AndrolibException {
+
+    public InFileNotFoundException(Throwable cause) {
+        super(cause);
+    }
+
+    public InFileNotFoundException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public InFileNotFoundException(String message) {
+        super(message);
+    }
+
+    public InFileNotFoundException() {
+    }
+}