lix/src/nix/build.cc
2017-09-06 16:03:22 +02:00

44 lines
1.1 KiB
C++

#include "command.hh"
#include "common-args.hh"
#include "shared.hh"
#include "store-api.hh"
using namespace nix;
struct CmdBuild : MixDryRun, InstallablesCommand
{
CmdBuild()
{
}
std::string name() override
{
return "build";
}
std::string description() override
{
return "build a derivation or fetch a store path";
}
void run(ref<Store> store) override
{
auto buildables = toBuildables(store, dryRun ? DryRun : Build);
for (size_t i = 0; i < buildables.size(); ++i) {
auto & b(buildables[i]);
for (auto & output : b.outputs) {
if (auto store2 = store.dynamic_pointer_cast<LocalFSStore>()) {
std::string symlink = "result";
if (i) symlink += fmt("-%d", i);
if (output.first != "out") symlink += fmt("-%s", output.first);
store2->addPermRoot(output.second, absPath(symlink), true);
}
}
}
}
};
static RegisterCommand r1(make_ref<CmdBuild>());