move argument parsing to new file
This commit is contained in:
Jörg Thalheim
parent
6f4bee53f6
commit
db3099bc8f
93
src/eval-args.cc
Normal file
93
src/eval-args.cc
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@ -0,0 +1,93 @@
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#include "eval-args.hh"
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MyArgs::MyArgs() : MixCommonArgs("nix-eval-jobs") {
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addFlag({
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.longName = "help",
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.description = "show usage information",
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.handler = {[&]() {
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printf("USAGE: nix-eval-jobs [options] expr\n\n");
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for (const auto &[name, flag] : longFlags) {
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if (hiddenCategories.count(flag->category)) {
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continue;
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}
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printf(" --%-20s %s\n", name.c_str(),
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flag->description.c_str());
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}
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::exit(0);
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}},
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});
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addFlag({.longName = "impure",
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.description = "allow impure expressions",
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.handler = {&impure, true}});
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addFlag({.longName = "force-recurse",
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.description = "force recursion (don't respect recurseIntoAttrs)",
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.handler = {&forceRecurse, true}});
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addFlag({.longName = "gc-roots-dir",
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.description = "garbage collector roots directory",
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.labels = {"path"},
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.handler = {&gcRootsDir}});
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addFlag(
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{.longName = "workers",
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.description = "number of evaluate workers",
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.labels = {"workers"},
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.handler = {[=, this](std::string s) { nrWorkers = std::stoi(s); }}});
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addFlag({.longName = "max-memory-size",
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.description = "maximum evaluation memory size in megabyte "
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"(4GiB per worker by default)",
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.labels = {"size"},
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.handler = {
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[=, this](std::string s) { maxMemorySize = std::stoi(s); }}});
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addFlag({.longName = "flake",
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.description = "build a flake",
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.handler = {&flake, true}});
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addFlag({.longName = "meta",
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.description = "include derivation meta field in output",
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.handler = {&meta, true}});
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addFlag({.longName = "check-cache-status",
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.description =
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"Check if the derivations are present locally or in "
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"any configured substituters (i.e. binary cache). The "
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"information "
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"will be exposed in the `isCached` field of the JSON output.",
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.handler = {&checkCacheStatus, true}});
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addFlag(
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{.longName = "show-trace",
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.description = "print out a stack trace in case of evaluation errors",
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.handler = {&showTrace, true}});
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addFlag({.longName = "expr",
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.shortName = 'E',
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.description = "treat the argument as a Nix expression",
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.handler = {&fromArgs, true}});
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// usually in MixFlakeOptions
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addFlag({
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.longName = "override-input",
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.description =
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"Override a specific flake input (e.g. `dwarffs/nixpkgs`).",
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.category = category,
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.labels = {"input-path", "flake-url"},
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.handler = {[&](std::string inputPath, std::string flakeRef) {
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// overriden inputs are unlocked
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lockFlags.allowUnlocked = true;
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lockFlags.inputOverrides.insert_or_assign(
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nix::flake::parseInputPath(inputPath),
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nix::parseFlakeRef(flakeRef, nix::absPath("."), true));
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}},
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});
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expectArg("expr", &releaseExpr);
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}
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void MyArgs::parseArgs(char** argv, int argc) {
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parseCmdline(nix::argvToStrings(argc, argv), 0);
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}
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32
src/eval-args.hh
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32
src/eval-args.hh
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@ -0,0 +1,32 @@
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#pragma once
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#include <string>
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#include <nix/flake/flake.hh>
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#include <nix/args/root.hh>
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#include <nix/common-eval-args.hh>
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class MyArgs : virtual public nix::MixEvalArgs,
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virtual public nix::MixCommonArgs,
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virtual nix::RootArgs {
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public:
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std::string releaseExpr;
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nix::Path gcRootsDir;
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bool flake = false;
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bool fromArgs = false;
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bool meta = false;
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bool showTrace = false;
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bool impure = false;
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bool forceRecurse = false;
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bool checkCacheStatus = false;
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size_t nrWorkers = 1;
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size_t maxMemorySize = 4096;
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// usually in MixFlakeOptions
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nix::flake::LockFlags lockFlags = {.updateLockFile = false,
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.writeLockFile = false,
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.useRegistries = false,
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.allowUnlocked = false};
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MyArgs();
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void parseArgs(char** argv, int argc);
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};
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@ -1,5 +1,6 @@
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src = [
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'nix-eval-jobs.cc',
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'eval-args.cc'
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]
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executable('nix-eval-jobs', src,
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@ -1,36 +1,29 @@
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#include <map>
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#include <iostream>
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#include <thread>
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#include <filesystem>
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#include <nix/eval-settings.hh>
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#include <condition_variable>
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#include <nix/config.h>
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#include <nix/shared.hh>
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#include <nix/store-api.hh>
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#include <nix/eval.hh>
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#include <nix/eval-inline.hh>
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#include <nix/util.hh>
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#include <nix/get-drvs.hh>
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#include <nix/globals.hh>
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#include <nix/eval-settings.hh>
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#include <nix/common-eval-args.hh>
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#include <nix/flake/flakeref.hh>
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#include <nix/flake/flake.hh>
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#include <nix/attr-path.hh>
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#include <nix/derivations.hh>
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#include <nix/local-fs-store.hh>
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#include <nix/logging.hh>
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#include <nix/error.hh>
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#include <nix/installables.hh>
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#include <nix/signals.hh>
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#include <nix/args/root.hh>
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#include <nix/shared.hh>
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#include <nix/sync.hh>
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#include <nix/terminal.hh>
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#include <nix/eval.hh>
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#include <nix/path-with-outputs.hh>
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#include <nix/local-fs-store.hh>
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#include <nix/installable-flake.hh>
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#include <nix/get-drvs.hh>
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#include <nix/attr-path.hh>
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#include <nix/value-to-json.hh>
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#include <sys/types.h>
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#include <nix/signals.hh>
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#include <nix/derivations.hh>
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#include <sys/wait.h>
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#include <sys/resource.h>
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#include "eval-args.hh"
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#include <nlohmann/json.hpp>
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using namespace nix;
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@ -42,122 +35,6 @@ using namespace nlohmann;
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#elif __clang__
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#pragma clang diagnostic ignored "-Wnon-virtual-dtor"
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#endif
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struct MyArgs : virtual MixEvalArgs, virtual MixCommonArgs, virtual RootArgs {
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std::string releaseExpr;
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Path gcRootsDir;
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bool flake = false;
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bool fromArgs = false;
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bool meta = false;
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bool showTrace = false;
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bool impure = false;
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bool forceRecurse = false;
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bool checkCacheStatus = false;
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size_t nrWorkers = 1;
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size_t maxMemorySize = 4096;
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// usually in MixFlakeOptions
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flake::LockFlags lockFlags = {.updateLockFile = false,
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.writeLockFile = false,
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.useRegistries = false,
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.allowUnlocked = false};
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MyArgs() : MixCommonArgs("nix-eval-jobs") {
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addFlag({
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.longName = "help",
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.description = "show usage information",
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.handler = {[&]() {
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printf("USAGE: nix-eval-jobs [options] expr\n\n");
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for (const auto &[name, flag] : longFlags) {
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if (hiddenCategories.count(flag->category)) {
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continue;
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}
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printf(" --%-20s %s\n", name.c_str(),
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flag->description.c_str());
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}
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::exit(0);
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}},
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});
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addFlag({.longName = "impure",
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.description = "allow impure expressions",
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.handler = {&impure, true}});
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addFlag(
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{.longName = "force-recurse",
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.description = "force recursion (don't respect recurseIntoAttrs)",
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.handler = {&forceRecurse, true}});
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addFlag({.longName = "gc-roots-dir",
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.description = "garbage collector roots directory",
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.labels = {"path"},
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.handler = {&gcRootsDir}});
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addFlag({.longName = "workers",
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.description = "number of evaluate workers",
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.labels = {"workers"},
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.handler = {
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[=, this](std::string s) { nrWorkers = std::stoi(s); }}});
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addFlag({.longName = "max-memory-size",
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.description = "maximum evaluation memory size in megabyte "
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"(4GiB per worker by default)",
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.labels = {"size"},
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.handler = {[=, this](std::string s) {
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maxMemorySize = std::stoi(s);
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}}});
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addFlag({.longName = "flake",
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.description = "build a flake",
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.handler = {&flake, true}});
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addFlag({.longName = "meta",
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.description = "include derivation meta field in output",
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.handler = {&meta, true}});
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addFlag(
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{.longName = "check-cache-status",
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.description =
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"Check if the derivations are present locally or in "
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"any configured substituters (i.e. binary cache). The "
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"information "
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"will be exposed in the `isCached` field of the JSON output.",
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.handler = {&checkCacheStatus, true}});
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addFlag({.longName = "show-trace",
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.description =
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"print out a stack trace in case of evaluation errors",
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.handler = {&showTrace, true}});
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addFlag({.longName = "expr",
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.shortName = 'E',
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.description = "treat the argument as a Nix expression",
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.handler = {&fromArgs, true}});
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// usually in MixFlakeOptions
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addFlag({
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.longName = "override-input",
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.description =
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"Override a specific flake input (e.g. `dwarffs/nixpkgs`).",
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.category = category,
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.labels = {"input-path", "flake-url"},
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.handler = {[&](std::string inputPath, std::string flakeRef) {
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// overriden inputs are unlocked
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lockFlags.allowUnlocked = true;
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lockFlags.inputOverrides.insert_or_assign(
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flake::parseInputPath(inputPath),
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parseFlakeRef(flakeRef, absPath("."), true));
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}},
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});
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expectArg("expr", &releaseExpr);
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}
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};
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#ifdef __GNUC__
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#pragma GCC diagnostic ignored "-Wnon-virtual-dtor"
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#elif __clang__
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#pragma clang diagnostic ignored "-Wnon-virtual-dtor"
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#endif
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static MyArgs myArgs;
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static Value *releaseExprTopLevelValue(EvalState &state, Bindings &autoArgs) {
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@ -679,7 +556,7 @@ int main(int argc, char **argv) {
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initNix();
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initGC();
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myArgs.parseCmdline(argvToStrings(argc, argv), 0);
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myArgs.parseArgs(argv, argc);
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/* FIXME: The build hook in conjunction with import-from-derivation is
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* causing "unexpected EOF" during eval */
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