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Rename "hash" to "hashString" and handle SHA-1

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This commit is contained in:
Eelco Dolstra 2013-02-08 19:36:23 +01:00
parent 01a5ea9914
commit 52172607cf
3 changed files with 15 additions and 24 deletions
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28
src/libexpr/primops.cc
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@ -1107,27 +1107,18 @@ static void prim_unsafeDiscardOutputDependency(EvalState & state, Value * * args
} }
static void prim_hash(EvalState & state, Value * * args, Value & v) /* Return the cryptographic hash of a string in base-16. */
static void prim_hashString(EvalState & state, Value * * args, Value & v)
{ {
PathSet context;
string type = state.forceStringNoCtx(*args[0]); string type = state.forceStringNoCtx(*args[0]);
string s = state.forceStringNoCtx(*args[1]); HashType ht = parseHashType(type);
if (ht == htUnknown)
throw Error(format("unknown hash type `%1%'") % type);
HashType ht; PathSet context; // discarded
if (type == "md5"){ string s = state.forceString(*args[1], context);
ht = htMD5;
} else if (type == "sha256"){
ht = htSHA256;
} else {
throw Error(format("bad hash type `%1%'") % type);
}
Hash h = hashString(ht, s); mkString(v, printHash(hashString(ht, s)), context);
string hash = printHash(h);
mkString(v, hash, context);
}; };
@ -1258,8 +1249,7 @@ void EvalState::createBaseEnv()
addPrimOp("__stringLength", 1, prim_stringLength); addPrimOp("__stringLength", 1, prim_stringLength);
addPrimOp("__unsafeDiscardStringContext", 1, prim_unsafeDiscardStringContext); addPrimOp("__unsafeDiscardStringContext", 1, prim_unsafeDiscardStringContext);
addPrimOp("__unsafeDiscardOutputDependency", 1, prim_unsafeDiscardOutputDependency); addPrimOp("__unsafeDiscardOutputDependency", 1, prim_unsafeDiscardOutputDependency);
addPrimOp("__hashString", 2, prim_hashString);
addPrimOp("__hash", 2, prim_hash);
// Versions // Versions
addPrimOp("__parseDrvName", 1, prim_parseDrvName); addPrimOp("__parseDrvName", 1, prim_parseDrvName);

2
tests/lang/eval-okay-hash.exp
View file

@ -1 +1 @@
[ "6c69ee7f211c640419d5366cc076ae46" "bb3438fbabd460ea6dbd27d153e2233b" "900a4469df00ccbfd0c145c6d1e4b7953dd0afafadd7534e3a4019e8d38fc663" "ad0387b3bd8652f730ca46d25f9c170af0fd589f42e7f23f5a9e6412d97d7e56" ] [ "d41d8cd98f00b204e9800998ecf8427e" "6c69ee7f211c640419d5366cc076ae46" "bb3438fbabd460ea6dbd27d153e2233b" "da39a3ee5e6b4b0d3255bfef95601890afd80709" "cd54e8568c1b37cf1e5badb0779bcbf382212189" "6d12e10b1d331dad210e47fd25d4f260802b7e77" "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" "900a4469df00ccbfd0c145c6d1e4b7953dd0afafadd7534e3a4019e8d38fc663" "ad0387b3bd8652f730ca46d25f9c170af0fd589f42e7f23f5a9e6412d97d7e56" ]

9
tests/lang/eval-okay-hash.nix
View file

@ -1,6 +1,7 @@
let let
md5 = builtins.hash "md5"; md5 = builtins.hashString "md5";
sha256 = builtins.hash "sha256"; sha1 = builtins.hashString "sha1";
strings = [ "text 1" "text 2" ]; sha256 = builtins.hashString "sha256";
strings = [ "" "text 1" "text 2" ];
in in
(builtins.map md5 strings) ++ (builtins.map sha256 strings) (builtins.map md5 strings) ++ (builtins.map sha1 strings) ++ (builtins.map sha256 strings)