about summary refs log tree commit diff
path: root/src/nix/main.cc
diff options
context:
space:
mode:
authorEelco Dolstra <eelco.dolstra@logicblox.com>2016-02-09T20·28+0100
committerEelco Dolstra <eelco.dolstra@logicblox.com>2016-02-09T20·28+0100
commitcd2196b08981a96cf607ad4a8f2f0dfa8cdf2add (patch)
treeb8f213b8790dc55812dae9fd1403bb352ccad0e2 /src/nix/main.cc
parent0db9e6cd1af299f7d65e0b99019f0ccdbb1aaf3f (diff)
Start of new Nix command-line interface
Diffstat (limited to 'src/nix/main.cc')
-rw-r--r--src/nix/main.cc55
1 files changed, 55 insertions, 0 deletions
diff --git a/src/nix/main.cc b/src/nix/main.cc
new file mode 100644
index 000000000000..20d3ea5c2555
--- /dev/null
+++ b/src/nix/main.cc
@@ -0,0 +1,55 @@
+#include <algorithm>
+
+#include "command.hh"
+#include "common-args.hh"
+#include "eval.hh"
+#include "globals.hh"
+#include "legacy.hh"
+#include "shared.hh"
+#include "store-api.hh"
+
+namespace nix {
+
+struct NixArgs : virtual MultiCommand, virtual MixCommonArgs
+{
+    NixArgs() : MultiCommand(*RegisterCommand::commands), MixCommonArgs("nix")
+    {
+        mkFlag('h', "help", "show usage information", [=]() {
+            printHelp(programName, std::cout);
+            throw Exit();
+        });
+
+        mkFlag(0, "version", "show version information", std::bind(printVersion, programName));
+    }
+};
+
+void mainWrapped(int argc, char * * argv)
+{
+    initNix();
+    initGC();
+
+    string programName = baseNameOf(argv[0]);
+
+    {
+        auto legacy = (*RegisterLegacyCommand::commands)[programName];
+        if (legacy) return legacy(argc, argv);
+    }
+
+    NixArgs args;
+
+    args.parseCmdline(argvToStrings(argc, argv));
+
+    assert(args.command);
+
+    args.command->prepare();
+    args.command->run();
+}
+
+}
+
+int main(int argc, char * * argv)
+{
+    return nix::handleExceptions(argv[0], [&]() {
+        nix::mainWrapped(argc, argv);
+    });
+}