nix-build/nix-shell: Eliminate call to nix-instantiate / nix-store

Note that this removes the need for a derivation symlink, so the
--drv-path and --add-drv-link flags now do nothing.

2 files changed, 11 insertions, 1 deletions

diff --git a/src/libmain/shared.cc b/src/libmain/shared.cc
index 915e79550144..48b00e1a399a 100644
--- a/src/libmain/shared.cc
+++ b/src/libmain/shared.cc
@@ -222,7 +222,14 @@ struct LegacyArgs : public MixCommonArgs
 void parseCmdLine(int argc, char * * argv,
     std::function<bool(Strings::iterator & arg, const Strings::iterator & end)> parseArg)
 {
-    LegacyArgs(baseNameOf(argv[0]), parseArg).parseCmdline(argvToStrings(argc, argv));
+    parseCmdLine(baseNameOf(argv[0]), argvToStrings(argc, argv), parseArg);
+}
+
+
+void parseCmdLine(const string & programName, const Strings & args,
+    std::function<bool(Strings::iterator & arg, const Strings::iterator & end)> parseArg)
+{
+    LegacyArgs(programName, parseArg).parseCmdline(args);
 }
 
 
diff --git a/src/libmain/shared.hh b/src/libmain/shared.hh
index 6d94a22f788e..14e436cc8bb2 100644
--- a/src/libmain/shared.hh
+++ b/src/libmain/shared.hh
@@ -25,6 +25,9 @@ void initNix();
 void parseCmdLine(int argc, char * * argv,
     std::function<bool(Strings::iterator & arg, const Strings::iterator & end)> parseArg);
 
+void parseCmdLine(const string & programName, const Strings & args,
+    std::function<bool(Strings::iterator & arg, const Strings::iterator & end)> parseArg);
+
 void printVersion(const string & programName);
 
 /* Ugh.  No better place to put this. */