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#include "libstore/fs-accessor.hh"
#include "libstore/nar-accessor.hh"
#include "libstore/store-api.hh"
#include "nix/command.hh"
using namespace nix;
struct MixCat : virtual Args {
std::string path;
void cat(const ref<FSAccessor>& accessor) {
auto st = accessor->stat(path);
if (st.type == FSAccessor::Type::tMissing) {
throw Error(format("path '%1%' does not exist") % path);
}
if (st.type != FSAccessor::Type::tRegular) {
throw Error(format("path '%1%' is not a regular file") % path);
}
std::cout << accessor->readFile(path);
}
};
struct CmdCatStore : StoreCommand, MixCat {
CmdCatStore() { expectArg("path", &path); }
std::string name() override { return "cat-store"; }
std::string description() override {
return "print the contents of a store file on stdout";
}
void run(ref<Store> store) override { cat(store->getFSAccessor()); }
};
struct CmdCatNar : StoreCommand, MixCat {
Path narPath;
CmdCatNar() {
expectArg("nar", &narPath);
expectArg("path", &path);
}
std::string name() override { return "cat-nar"; }
std::string description() override {
return "print the contents of a file inside a NAR file";
}
void run(ref<Store> store) override {
cat(makeNarAccessor(make_ref<std::string>(readFile(narPath))));
}
};
static RegisterCommand r1(make_ref<CmdCatStore>());
static RegisterCommand r2(make_ref<CmdCatNar>());
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