Finished split into more logical components. Library now copies Headers to Build/RestKit and you can selectively link against the components your app needs. libRestKit.a contains everything from the core library.

Code/Network/RKParamsFileAttachment.m

@@ -0,0 +1,35 @@
+//
+//  RKParamsFileAttachment.m
+//  RestKit
+//
+//  Created by Blake Watters on 8/6/09.
+//  Copyright 2009 Two Toasters. All rights reserved.
+//
+
+#import "RKParamsFileAttachment.h"
+
+@implementation RKParamsFileAttachment
+
+@synthesize filePath = _filePath;
+
+- (void)dealloc {
+	[_filePath release];
+	[super dealloc];
+}
+
+- (void)writeAttachmentToHTTPBody:(NSMutableData*)HTTPBody {
+	NSInputStream *stream = [[[NSInputStream alloc] initWithFileAtPath:_filePath] autorelease];
+	[stream open];
+	int bytesRead;
+	while ([stream hasBytesAvailable]) {		
+		unsigned char buffer[1024*256];
+		bytesRead = [stream read:buffer maxLength:sizeof(buffer)];
+		if (bytesRead == 0) {
+			break;
+		}
+		[HTTPBody appendData:[NSData dataWithBytes:buffer length:bytesRead]];
+	}
+	[stream close];
+}
+
+@end