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#include "command.hh"
#include "common-args.hh"
#include "fs-accessor.hh"
#include "json.hh"
#include "nar-accessor.hh"
#include "store-api.hh"
using namespace nix;
struct MixLs : virtual Args, MixJSON {
std::string path;
bool recursive = false;
bool verbose = false;
bool showDirectory = false;
MixLs() {
mkFlag('R', "recursive", "list subdirectories recursively", &recursive);
mkFlag('l', "long", "show more file information", &verbose);
mkFlag('d', "directory", "show directories rather than their contents",
&showDirectory);
}
void listText(ref<FSAccessor> accessor) {
std::function<void(const FSAccessor::Stat&, const Path&, const std::string&,
bool)>
doPath;
auto showFile = [&](const Path& curPath, const std::string& relPath) {
if (verbose) {
auto st = accessor->stat(curPath);
std::string tp = st.type == FSAccessor::Type::tRegular
? (st.isExecutable ? "-r-xr-xr-x" : "-r--r--r--")
: st.type == FSAccessor::Type::tSymlink
? "lrwxrwxrwx"
: "dr-xr-xr-x";
std::cout << (format("%s %20d %s") % tp % st.fileSize % relPath);
if (st.type == FSAccessor::Type::tSymlink)
std::cout << " -> " << accessor->readLink(curPath);
std::cout << "\n";
if (recursive && st.type == FSAccessor::Type::tDirectory)
doPath(st, curPath, relPath, false);
} else {
std::cout << relPath << "\n";
if (recursive) {
auto st = accessor->stat(curPath);
if (st.type == FSAccessor::Type::tDirectory)
doPath(st, curPath, relPath, false);
}
}
};
doPath = [&](const FSAccessor::Stat& st, const Path& curPath,
const std::string& relPath, bool showDirectory) {
if (st.type == FSAccessor::Type::tDirectory && !showDirectory) {
auto names = accessor->readDirectory(curPath);
for (auto& name : names)
showFile(curPath + "/" + name, relPath + "/" + name);
} else
showFile(curPath, relPath);
};
auto st = accessor->stat(path);
if (st.type == FSAccessor::Type::tMissing)
throw Error(format("path '%1%' does not exist") % path);
doPath(st, path,
st.type == FSAccessor::Type::tDirectory ? "." : baseNameOf(path),
showDirectory);
}
void list(ref<FSAccessor> accessor) {
if (path == "/") path = "";
if (json) {
JSONPlaceholder jsonRoot(std::cout);
listNar(jsonRoot, accessor, path, recursive);
} else
listText(accessor);
}
};
struct CmdLsStore : StoreCommand, MixLs {
CmdLsStore() { expectArg("path", &path); }
Examples examples() override {
return {
Example{"To list the contents of a store path in a binary cache:",
"nix ls-store --store https://cache.nixos.org/ -lR "
"/nix/store/0i2jd68mp5g6h2sa5k9c85rb80sn8hi9-hello-2.10"},
};
}
std::string name() override { return "ls-store"; }
std::string description() override {
return "show information about a store path";
}
void run(ref<Store> store) override { list(store->getFSAccessor()); }
};
struct CmdLsNar : Command, MixLs {
Path narPath;
CmdLsNar() {
expectArg("nar", &narPath);
expectArg("path", &path);
}
Examples examples() override {
return {
Example{"To list a specific file in a NAR:",
"nix ls-nar -l hello.nar /bin/hello"},
};
}
std::string name() override { return "ls-nar"; }
std::string description() override {
return "show information about the contents of a NAR file";
}
void run() override {
list(makeNarAccessor(make_ref<std::string>(readFile(narPath, true))));
}
};
static RegisterCommand r1(make_ref<CmdLsStore>());
static RegisterCommand r2(make_ref<CmdLsNar>());
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