Cp : Add rcp fast and hash.

module/common/bash/module/Cp.nix

@@ -6,6 +6,20 @@
 			rsync -ahP --chmod=u+w "''${@}"
 		}
 
+		# Replaces default cp with rsync.
+		# Only compare file size.
+		# Usage: rcp_fast <FROM> <TO>
+		function rcp_fast() {
+			rsync -ahP --chmod=u+w --size-only "''${@}"
+		}
+
+		# Replaces default cp with rsync.
+		# Compare file hashes.
+		# Usage: rcp_hash <FROM> <TO>
+		function rcp_hash() {
+			rsync -ahP --chmod=u+w --checksum "''${@}"
+		}
+
 		# Copy and also merge all changes (delete dst files that do not exist in src).
 		# Usage: rcp_merge <FROM> <TO>
 		function rcp_merge() {
@@ -24,17 +38,17 @@
 			rsync -ahP --chmod=u+w --delete --checksum "''${@}"
 		}
 
+		# Print output of cp_merge without writing anything.
+		# Usage: rcp_test <FROM> <TO>
+		function rcp_test() {
+			rsync -ahP --chmod=u+w --delete -n "''${@}"
+		}
+
 		# Copy by creating hardlinks.
 		# Works for directories, too.
 		# Usage: cp_link <FROM> <TO>
 		function cp_link() {
 			/usr/bin/env cp -lr "''${@}"
 		}
-
-		# Print output of cp_merge without writing anything.
-		# Usage: rcp_test <FROM> <TO>
-		function rcp_test() {
-			rsync -ahP --chmod=u+w --delete -n "''${@}"
-		}
 	'';
 }