diff options
Diffstat (limited to 'third_party/nix/src/nix/path-info.cc')
| -rw-r--r-- | third_party/nix/src/nix/path-info.cc | 209 |
1 files changed, 97 insertions, 112 deletions
diff --git a/third_party/nix/src/nix/path-info.cc b/third_party/nix/src/nix/path-info.cc index dea5f0557b..bd12be5c23 100644 --- a/third_party/nix/src/nix/path-info.cc +++ b/third_party/nix/src/nix/path-info.cc @@ -1,133 +1,118 @@ +#include <algorithm> +#include <array> #include "command.hh" +#include "common-args.hh" +#include "json.hh" #include "shared.hh" #include "store-api.hh" -#include "json.hh" -#include "common-args.hh" - -#include <algorithm> -#include <array> using namespace nix; -struct CmdPathInfo : StorePathsCommand, MixJSON -{ - bool showSize = false; - bool showClosureSize = false; - bool humanReadable = false; - bool showSigs = false; - - CmdPathInfo() - { - mkFlag('s', "size", "print size of the NAR dump of each path", &showSize); - mkFlag('S', "closure-size", "print sum size of the NAR dumps of the closure of each path", &showClosureSize); - mkFlag('h', "human-readable", "with -s and -S, print sizes like 1K 234M 5.67G etc.", &humanReadable); - mkFlag(0, "sigs", "show signatures", &showSigs); +struct CmdPathInfo : StorePathsCommand, MixJSON { + bool showSize = false; + bool showClosureSize = false; + bool humanReadable = false; + bool showSigs = false; + + CmdPathInfo() { + mkFlag('s', "size", "print size of the NAR dump of each path", &showSize); + mkFlag('S', "closure-size", + "print sum size of the NAR dumps of the closure of each path", + &showClosureSize); + mkFlag('h', "human-readable", + "with -s and -S, print sizes like 1K 234M 5.67G etc.", + &humanReadable); + mkFlag(0, "sigs", "show signatures", &showSigs); + } + + std::string name() override { return "path-info"; } + + std::string description() override { + return "query information about store paths"; + } + + Examples examples() override { + return { + Example{"To show the closure sizes of every path in the current NixOS " + "system closure, sorted by size:", + "nix path-info -rS /run/current-system | sort -nk2"}, + Example{"To show a package's closure size and all its dependencies " + "with human readable sizes:", + "nix path-info -rsSh nixpkgs.rust"}, + Example{"To check the existence of a path in a binary cache:", + "nix path-info -r /nix/store/7qvk5c91...-geeqie-1.1 --store " + "https://cache.nixos.org/"}, + Example{"To print the 10 most recently added paths (using --json and " + "the jq(1) command):", + "nix path-info --json --all | jq -r " + "'sort_by(.registrationTime)[-11:-1][].path'"}, + Example{"To show the size of the entire Nix store:", + "nix path-info --json --all | jq 'map(.narSize) | add'"}, + Example{"To show every path whose closure is bigger than 1 GB, sorted " + "by closure size:", + "nix path-info --json --all -S | jq 'map(select(.closureSize > " + "1e9)) | sort_by(.closureSize) | map([.path, .closureSize])'"}, + }; + } + + void printSize(unsigned long long value) { + if (!humanReadable) { + std::cout << fmt("\t%11d", value); + return; } - std::string name() override - { - return "path-info"; + static const std::array<char, 9> idents{ + {' ', 'K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y'}}; + size_t power = 0; + double res = value; + while (res > 1024 && power < idents.size()) { + ++power; + res /= 1024; } - - std::string description() override - { - return "query information about store paths"; + std::cout << fmt("\t%6.1f%c", res, idents.at(power)); + } + + void run(ref<Store> store, Paths storePaths) override { + size_t pathLen = 0; + for (auto& storePath : storePaths) + pathLen = std::max(pathLen, storePath.size()); + + if (json) { + JSONPlaceholder jsonRoot(std::cout); + store->pathInfoToJSON(jsonRoot, + // FIXME: preserve order? + PathSet(storePaths.begin(), storePaths.end()), true, + showClosureSize, AllowInvalid); } - Examples examples() override - { - return { - Example{ - "To show the closure sizes of every path in the current NixOS system closure, sorted by size:", - "nix path-info -rS /run/current-system | sort -nk2" - }, - Example{ - "To show a package's closure size and all its dependencies with human readable sizes:", - "nix path-info -rsSh nixpkgs.rust" - }, - Example{ - "To check the existence of a path in a binary cache:", - "nix path-info -r /nix/store/7qvk5c91...-geeqie-1.1 --store https://cache.nixos.org/" - }, - Example{ - "To print the 10 most recently added paths (using --json and the jq(1) command):", - "nix path-info --json --all | jq -r 'sort_by(.registrationTime)[-11:-1][].path'" - }, - Example{ - "To show the size of the entire Nix store:", - "nix path-info --json --all | jq 'map(.narSize) | add'" - }, - Example{ - "To show every path whose closure is bigger than 1 GB, sorted by closure size:", - "nix path-info --json --all -S | jq 'map(select(.closureSize > 1e9)) | sort_by(.closureSize) | map([.path, .closureSize])'" - }, - }; - } + else { + for (auto storePath : storePaths) { + auto info = store->queryPathInfo(storePath); + storePath = info->path; // FIXME: screws up padding - void printSize(unsigned long long value) - { - if (!humanReadable) { - std::cout << fmt("\t%11d", value); - return; - } + std::cout << storePath; - static const std::array<char, 9> idents{{ - ' ', 'K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y' - }}; - size_t power = 0; - double res = value; - while (res > 1024 && power < idents.size()) { - ++power; - res /= 1024; - } - std::cout << fmt("\t%6.1f%c", res, idents.at(power)); - } - - void run(ref<Store> store, Paths storePaths) override - { - size_t pathLen = 0; - for (auto & storePath : storePaths) - pathLen = std::max(pathLen, storePath.size()); - - if (json) { - JSONPlaceholder jsonRoot(std::cout); - store->pathInfoToJSON(jsonRoot, - // FIXME: preserve order? - PathSet(storePaths.begin(), storePaths.end()), - true, showClosureSize, AllowInvalid); - } - - else { - - for (auto storePath : storePaths) { - auto info = store->queryPathInfo(storePath); - storePath = info->path; // FIXME: screws up padding + if (showSize || showClosureSize || showSigs) + std::cout << std::string( + std::max(0, (int)pathLen - (int)storePath.size()), ' '); - std::cout << storePath; + if (showSize) printSize(info->narSize); - if (showSize || showClosureSize || showSigs) - std::cout << std::string(std::max(0, (int) pathLen - (int) storePath.size()), ' '); - - if (showSize) - printSize(info->narSize); - - if (showClosureSize) - printSize(store->getClosureSize(storePath).first); - - if (showSigs) { - std::cout << '\t'; - Strings ss; - if (info->ultimate) ss.push_back("ultimate"); - if (info->ca != "") ss.push_back("ca:" + info->ca); - for (auto & sig : info->sigs) ss.push_back(sig); - std::cout << concatStringsSep(" ", ss); - } - - std::cout << std::endl; - } + if (showClosureSize) printSize(store->getClosureSize(storePath).first); + if (showSigs) { + std::cout << '\t'; + Strings ss; + if (info->ultimate) ss.push_back("ultimate"); + if (info->ca != "") ss.push_back("ca:" + info->ca); + for (auto& sig : info->sigs) ss.push_back(sig); + std::cout << concatStringsSep(" ", ss); } + + std::cout << std::endl; + } } + } }; static RegisterCommand r1(make_ref<CmdPathInfo>()); |