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authorEelco Dolstra <e.dolstra@tudelft.nl>2005-02-22T21·14+0000
committerEelco Dolstra <e.dolstra@tudelft.nl>2005-02-22T21·14+0000
commit3a2c3f0cf265075b130d9d2a25b9c8334c560b33 (patch)
tree5647390d868e6ea2607d065974ec932e5dcb47f1 /src/libexpr/primops.cc
parenteda2c3c2537562e3b18c02a47b19e47ba3d37598 (diff)
* Support for fixed-output hashes over directory trees (i.e., over the
  NAR dump of the path).

Diffstat (limited to 'src/libexpr/primops.cc')
-rw-r--r--src/libexpr/primops.cc7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc
index da9d1e635811..a2f27b4dc87f 100644
--- a/src/libexpr/primops.cc
+++ b/src/libexpr/primops.cc
@@ -194,6 +194,7 @@ static Expr primDerivation(EvalState & state, const ATermVector & _args)
     
     string outputHash;
     string outputHashAlgo;
+    bool outputHashRecursive = false;
 
     for (ATermIterator i(attrs.keys()); i; ++i) {
         string key = aterm2String(*i);
@@ -228,6 +229,11 @@ static Expr primDerivation(EvalState & state, const ATermVector & _args)
             else if (key == "name") drvName = s;
             else if (key == "outputHash") outputHash = s;
             else if (key == "outputHashAlgo") outputHashAlgo = s;
+            else if (key == "outputHashMode") {
+                if (s == "recursive") outputHashRecursive = true; 
+                else if (s == "flat") outputHashRecursive = false;
+                else throw Error(format("invalid value `%1%' for `outputHashMode' attribute") % s);
+            }
         }
     }
     
@@ -255,6 +261,7 @@ static Expr primDerivation(EvalState & state, const ATermVector & _args)
             h = parseHash32(ht, outputHash);
         string s = outputHash;
         outputHash = printHash(h);
+        if (outputHashRecursive) outputHashAlgo = "r:" + outputHashAlgo;
     }
 
     /* Check the derivation name.  It shouldn't contain whitespace,