From 720f06e3b05502df2dc84afb7a3ad2ea5518246a Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <e.dolstra@tudelft.nl>
Date: Wed, 6 Aug 2003 09:06:32 +0000
Subject: [PATCH] * A flag `--flat' to just compute the MD5 checksum of the
 contents of   a regular file.  I.e., `nix-hash --flat' is equivalent to the  
 coreutils `md5sum' command (which doesn't exist on all systems).

---
 src/nix-hash.cc | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/nix-hash.cc b/src/nix-hash.cc
index e35d0a1fe..77c169b9a 100644
--- a/src/nix-hash.cc
+++ b/src/nix-hash.cc
@@ -6,9 +6,13 @@
 
 void run(Strings args)
 {
-    for (Strings::iterator it = args.begin();
-         it != args.end(); it++)
-        cout << format("%1%\n") % (string) hashPath(*it);
+    bool flat = false;
+    for (Strings::iterator i = args.begin();
+         i != args.end(); i++)
+        if (*i == "--flat") flat = true;
+        else
+            cout << format("%1%\n") % (string) 
+                (flat ? hashFile(*i) : hashPath(*i));
 }