1 files changed, 56 insertions, 2 deletions

diff --git a/src/libstore/derivations.cc b/src/libstore/derivations.cc
index 5590b99b36fa..d934bda38225 100644
--- a/src/libstore/derivations.cc
+++ b/src/libstore/derivations.cc
@@ -9,7 +9,7 @@
 namespace nix {
 
 
-void DerivationOutput::parseHashInfo(bool & recursive, HashType & hashType, Hash & hash) const
+void DerivationOutput::parseHashInfo(bool & recursive, Hash & hash) const
 {
     recursive = false;
     string algo = hashAlgo;
@@ -19,7 +19,7 @@ void DerivationOutput::parseHashInfo(bool & recursive, HashType & hashType, Hash
         algo = string(algo, 2);
     }
 
-    hashType = parseHashType(algo);
+    HashType hashType = parseHashType(algo);
     if (hashType == htUnknown)
         throw Error(format("unknown hash algorithm ‘%1%’") % algo);
 
@@ -61,6 +61,7 @@ bool BasicDerivation::canBuildLocally() const
 #if __linux__
         || (platform == "i686-linux" && settings.thisSystem == "x86_64-linux")
         || (platform == "armv6l-linux" && settings.thisSystem == "armv7l-linux")
+        || (platform == "armv5tel-linux" && (settings.thisSystem == "armv7l-linux" || settings.thisSystem == "armv6l-linux"))
 #elif __FreeBSD__
         || (platform == "i686-linux" && settings.thisSystem == "x86_64-freebsd")
         || (platform == "i686-linux" && settings.thisSystem == "i686-freebsd")
@@ -87,6 +88,38 @@ Path writeDerivation(ref<Store> store,
 }
 
 
+MakeError(FormatError, Error)
+
+
+/* Read string `s' from stream `str'. */
+static void expect(std::istream & str, const string & s)
+{
+    char s2[s.size()];
+    str.read(s2, s.size());
+    if (string(s2, s.size()) != s)
+        throw FormatError(format("expected string ‘%1%’") % s);
+}
+
+
+/* Read a C-style string from stream `str'. */
+static string parseString(std::istream & str)
+{
+    string res;
+    expect(str, "\"");
+    int c;
+    while ((c = str.get()) != '"')
+        if (c == '\\') {
+            c = str.get();
+            if (c == 'n') res += '\n';
+            else if (c == 'r') res += '\r';
+            else if (c == 't') res += '\t';
+            else res += c;
+        }
+        else res += c;
+    return res;
+}
+
+
 static Path parsePath(std::istream & str)
 {
     string s = parseString(str);
@@ -96,6 +129,20 @@ static Path parsePath(std::istream & str)
 }
 
 
+static bool endOfList(std::istream & str)
+{
+    if (str.peek() == ',') {
+        str.get();
+        return false;
+    }
+    if (str.peek() == ']') {
+        str.get();
+        return true;
+    }
+    return false;
+}
+
+
 static StringSet parseStrings(std::istream & str, bool arePaths)
 {
     StringSet res;
@@ -390,4 +437,11 @@ Sink & operator << (Sink & out, const BasicDerivation & drv)
 }
 
 
+std::string hashPlaceholder(const std::string & outputName)
+{
+    // FIXME: memoize?
+    return "/" + printHash32(hashString(htSHA256, "nix-output:" + outputName));
+}
+
+
 }