lix/src/nix/add-to-store.cc
2020-12-03 23:22:22 +01:00

82 lines
2 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
#include "add-to-store.md"
;
}
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->makeFixedOutputPath(ingestionMethod, hash, *namePart),
narHash,
};
info.narSize = sink.s->size();
info.ca = std::optional { FixedOutputHash {
.method = ingestionMethod,
.hash = hash,
} };
if (!dryRun) {
auto source = StringSource { *sink.s };
store->addToStore(info, source);
}
logger->cout("%s", store->printStorePath(info.path));
}
};
static auto rCmdAddToStore = registerCommand2<CmdAddToStore>({"store", "add-path"});