lix-releng-staging/src/nix/run.cc

63 lines
1.5 KiB
C++
Raw Normal View History

2016-06-02 14:29:49 +00:00
#include "command.hh"
#include "common-args.hh"
#include "installables.hh"
#include "shared.hh"
#include "store-api.hh"
#include "derivations.hh"
using namespace nix;
struct CmdRun : StoreCommand, MixInstallables
{
CmdRun()
{
}
std::string name() override
{
return "run";
}
std::string description() override
{
return "run a shell in which the specified packages are available";
}
void run(ref<Store> store) override
{
auto elems = evalInstallables(store);
PathSet pathsToBuild;
for (auto & elem : elems) {
if (elem.isDrv)
pathsToBuild.insert(elem.drvPath);
else
pathsToBuild.insert(elem.outPaths.begin(), elem.outPaths.end());
}
printMissing(store, pathsToBuild);
store->buildPaths(pathsToBuild);
PathSet outPaths;
for (auto & path : pathsToBuild)
if (isDerivation(path)) {
Derivation drv = store->derivationFromPath(path);
for (auto & output : drv.outputs)
outPaths.insert(output.second.path);
} else
outPaths.insert(path);
auto unixPath = tokenizeString<Strings>(getEnv("PATH"), ":");
for (auto & path : outPaths)
if (pathExists(path + "/bin"))
unixPath.push_front(path + "/bin");
setenv("PATH", concatStringsSep(":", unixPath).c_str(), 1);
execlp("bash", "bash", nullptr);
}
};
static RegisterCommand r1(make_ref<CmdRun>());