add copy method

README.md

@@ -27,7 +27,15 @@ s3.get('/some/path', {'x-amz-acl': 'private'}, function(err, body) {
 
 ## s3.get(path, [headers], callback) 
 
-## s3.put(path, [headers], data, callback)
+## s3.put(path, headers, data, callback)
+Requires ```Content-Type``` and ```Content-Length``` headers
 
 ## s3.delete(path, [headers], callback)
 
+## s3.copy(dst_path, src_path, src_bucket, headers, callback)
+
+ * dst_path - the destination filename
+ * src_path - the source filename
+ * src_bucket - the source bucket. The dst_bucket is the bucket passed to the constructor.
+
+Requires ```Content-Type``` and ```Content-Length``` headers

index.js

@@ -96,3 +96,18 @@ S3.prototype.delete = function(path, headers, callback) {
     callback();
   }).end();
 };
+
+S3.prototype.copy = function(dst_path, src_path, src_bucket, headers, callback) {
+  if (typeof headers === 'function') {
+    callback = headers;
+    headers = {};
+  }
+  var src_header = '/'+src_bucket; 
+  if (src_path.indexOf('/') === 0) {
+    src_header += src_path;
+  } else {
+    src_header += '/' + src_path;
+  }
+  headers['x-amz-copy-source'] = src_header;
+  this.put(dst_path, headers, '', callback);
+};

package.json

@@ -2,7 +2,7 @@
   "author": "Andrew J. Stone <andrew.j.stone.1@gmail.com>",
   "name": "s3asy",
   "description": "Simple S3 integration with a cache backed by Redis",
-  "version": "0.1.2",
+  "version": "0.2.0",
   "repository": {
     "type": "git",
     "url": "git://github.com/andrewjstone/s3asy.git"