Nix/src/nix/path-from-hash-part.cc
Eelco Dolstra 61f89e954a
Add command 'nix store path-from-hash-part'
This exposes the Store::queryPathFromHashPart() interface in the CLI.
2022-10-18 16:51:12 +02:00

40 lines
893 B
C++

#include "command.hh"
#include "store-api.hh"
using namespace nix;
struct CmdPathFromHashPart : StoreCommand
{
std::string hashPart;
CmdPathFromHashPart()
{
expectArgs({
.label = "hash-part",
.handler = {&hashPart},
});
}
std::string description() override
{
return "get a store path from its hash part";
}
std::string doc() override
{
return
#include "path-from-hash-part.md"
;
}
void run(ref<Store> store) override
{
if (auto storePath = store->queryPathFromHashPart(hashPart))
logger->cout(store->printStorePath(*storePath));
else
throw Error("there is no store path corresponding to '%s'", hashPart);
}
};
static auto rCmdPathFromHashPart = registerCommand2<CmdPathFromHashPart>({"store", "path-from-hash-part"});