Merge pull request #47 from corbt/move-file

Add moveFile with Android support

FS.common.js

@@ -18,6 +18,7 @@ var _readDir = Promise.promisify(RNFSManager.readDir);
 var _stat = Promise.promisify(RNFSManager.stat);
 var _readFile = Promise.promisify(RNFSManager.readFile);
 var _writeFile = Promise.promisify(RNFSManager.writeFile);
+var _moveFile = Promise.promisify(RNFSManager.moveFile);
 var _unlink = Promise.promisify(RNFSManager.unlink);
 var _mkdir = Promise.promisify(RNFSManager.mkdir);
 var _downloadFile = Promise.promisify(RNFSManager.downloadFile);
@@ -123,6 +124,11 @@ var RNFS = {
       .catch(convertError);
   },
 
+  moveFile(filepath, destPath) {
+    return _moveFile(filepath, destPath)
+      .catch(convertError);
+  },
+
   pathForBundle(bundleName) {
     return _pathForBundle(bundleName);
   },

README.md

@@ -192,6 +192,10 @@ Write the `contents` to `filepath`. `encoding` can be one of `utf8` (default), `
 
 The promise resolves with a boolean.
 
+### `promise moveFile(filepath, destPath)`
+
+Moves the file located at `filepath` to `destPath`. This is more performant than reading and then re-writing the file data because the move is done natively and the data doesn't have to be copied or cross the bridge.
+
 ### `promise unlink(filepath)`
 
 Unlinks the item at `filepath`. If the item does not exist, an error will be thrown.

RNFSManager.m

@@ -148,6 +148,22 @@ RCT_EXPORT_METHOD(readFile:(NSString *)filepath
   callback(@[[NSNull null], base64Content]);
 }
 
+RCT_EXPORT_METHOD(moveFile:(NSString *)filepath
+                  destPath:(NSString *)destPath
+                  callback:(RCTResponseSenderBlock)callback)
+{
+    NSFileManager *manager = [NSFileManager defaultManager];
+    
+    NSError *error = nil;
+    BOOL success = [manager moveItemAtPath:filepath toPath:destPath error:&error];
+    
+    if (!success) {
+        return callback([self makeErrorPayload:error]);
+    }
+    
+    callback(@[[NSNull null], [NSNumber numberWithBool:success], destPath]);
+}
+
 RCT_EXPORT_METHOD(downloadFile:(NSString *)urlStr
                   filepath:(NSString *)filepath
                   jobId:(nonnull NSNumber *)jobId

android/src/main/java/com/rnfs/RNFSManager.java

@@ -92,6 +92,20 @@ public class RNFSManager extends ReactContextBaseJavaModule {
     }
   }
 
+  @ReactMethod
+  public void moveFile(String filepath, String destPath, Callback callback) {
+    try {
+      File from = new File(filepath);
+      File to = new File(destPath);
+      from.renameTo(to);
+
+      callback.invoke(null, true, destPath);
+    } catch (Exception ex) {
+      ex.printStackTrace();
+      callback.invoke(makeErrorPayload(ex));
+    }
+  }
+
   @ReactMethod
   public void readDir(String directory, Callback callback) {
     try {