Nix/src/nix/add-to-store.cc
2020-10-07 15:00:10 +00:00

97 lines
2.3 KiB
C++

#include "command.hh"
#include "common-args.hh"
#include "store-api.hh"
#include "archive.hh"
using namespace nix;
struct CmdAddToStore : MixDryRun, StoreCommand
{
Path path;
std::optional<std::string> namePart;
FileIngestionMethod ingestionMethod = FileIngestionMethod::Recursive;
CmdAddToStore()
{
expectArg("path", &path);
addFlag({
.longName = "name",
.shortName = 'n',
.description = "name component of the store path",
.labels = {"name"},
.handler = {&namePart},
});
addFlag({
.longName = "flat",
.shortName = 0,
.description = "add flat file to the Nix store",
.handler = {&ingestionMethod, FileIngestionMethod::Flat},
});
}
std::string description() override
{
return "add a path to the Nix store";
}
std::string doc() override
{
return R"(
Copy the file or directory *path* to the Nix store, and
print the resulting store path on standard output.
)";
}
Examples examples() override
{
return {
};
}
Category category() override { return catUtility; }
void run(ref<Store> store) override
{
if (!namePart) namePart = baseNameOf(path);
StringSink sink;
dumpPath(path, sink);
auto narHash = hashString(htSHA256, *sink.s);
Hash hash = narHash;
if (ingestionMethod == FileIngestionMethod::Flat) {
HashSink hsink(htSHA256);
readFile(path, hsink);
hash = hsink.finish().first;
}
ValidPathInfo info {
*store,
StorePathDescriptor {
.name = *namePart,
.info = FixedOutputInfo {
{
.method = std::move(ingestionMethod),
.hash = std::move(hash),
},
{},
},
},
narHash,
};
info.narSize = sink.s->size();
if (!dryRun) {
auto source = StringSource { *sink.s };
store->addToStore(info, source);
}
logger->stdout("%s", store->printStorePath(info.path));
}
};
static auto r1 = registerCommand<CmdAddToStore>("add-to-store");