diff options
Diffstat (limited to 'third_party/nix/src/nix/ls.cc')
| -rw-r--r-- | third_party/nix/src/nix/ls.cc | 257 |
1 files changed, 115 insertions, 142 deletions
diff --git a/third_party/nix/src/nix/ls.cc b/third_party/nix/src/nix/ls.cc index d089be42fb..b23f83eb78 100644 --- a/third_party/nix/src/nix/ls.cc +++ b/third_party/nix/src/nix/ls.cc @@ -1,155 +1,128 @@ #include "command.hh" -#include "store-api.hh" -#include "fs-accessor.hh" -#include "nar-accessor.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 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 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)))); - } +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>()); |