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authorEelco Dolstra <e.dolstra@tudelft.nl>2011-12-16T23·33+0000
committerEelco Dolstra <e.dolstra@tudelft.nl>2011-12-16T23·33+0000
commit194d21f9f63ceb034f3e8294f89aa6bf6a217bc9 (patch)
tree7eb6da5955482a82f4d34b60dcb10514a4a55f59 /src/libexpr/common-opts.cc
parent3c3107da86ff71a08ce44027ee5899acf486796a (diff)
parent273b288a7e862ac1918064537ff130cc751fa9fd (diff)
* Sync with the trunk.
Diffstat (limited to 'src/libexpr/common-opts.cc')
-rw-r--r--src/libexpr/common-opts.cc11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/libexpr/common-opts.cc b/src/libexpr/common-opts.cc
index d029d2ec35b9..e0865d9fcc25 100644
--- a/src/libexpr/common-opts.cc
+++ b/src/libexpr/common-opts.cc
@@ -44,4 +44,15 @@ bool parseSearchPathArg(const string & arg, Strings::iterator & i,
 }
 
 
+Path lookupFileArg(EvalState & state, string s)
+{
+    if (s.size() > 2 && s.at(0) == '<' && s.at(s.size() - 1) == '>') {
+        Path p = state.findFile(s.substr(1, s.size() - 2));
+        if (p == "") throw Error(format("file `%1%' was not found in the Nix search path (add it using $NIX_PATH or -I)") % p);
+        return p;
+    } else
+        return absPath(s);
+}
+
+
 }