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nix/src/libmain/common-args.cc
John Ericson 0feeab755a Move plugins infra to libnixmain
They are not actually part of the store layer, but instead part of the
Nix executable infra (libraries don't need plugins, executables do).

This is part of a larger project of moving all of our legacy settings
infra to libmain, and having the underlying libraries just have plain
configuration structs detached from any settings infra / UI layer.

Progress on #5638
2024-07-15 17:26:03 -04:00

95 lines
2.9 KiB
C++

#include "common-args.hh"
#include "args/root.hh"
#include "config-global.hh"
#include "globals.hh"
#include "logging.hh"
#include "loggers.hh"
#include "util.hh"
#include "plugin.hh"
namespace nix {
MixCommonArgs::MixCommonArgs(const std::string & programName)
: programName(programName)
{
addFlag({
.longName = "verbose",
.shortName = 'v',
.description = "Increase the logging verbosity level.",
.category = loggingCategory,
.handler = {[]() { verbosity = (Verbosity) (verbosity + 1); }},
});
addFlag({
.longName = "quiet",
.description = "Decrease the logging verbosity level.",
.category = loggingCategory,
.handler = {[]() { verbosity = verbosity > lvlError ? (Verbosity) (verbosity - 1) : lvlError; }},
});
addFlag({
.longName = "debug",
.description = "Set the logging verbosity level to 'debug'.",
.category = loggingCategory,
.handler = {[]() { verbosity = lvlDebug; }},
});
addFlag({
.longName = "option",
.description = "Set the Nix configuration setting *name* to *value* (overriding `nix.conf`).",
.category = miscCategory,
.labels = {"name", "value"},
.handler = {[this](std::string name, std::string value) {
try {
globalConfig.set(name, value);
} catch (UsageError & e) {
if (!getRoot().completions)
warn(e.what());
}
}},
.completer = [](AddCompletions & completions, size_t index, std::string_view prefix) {
if (index == 0) {
std::map<std::string, Config::SettingInfo> settings;
globalConfig.getSettings(settings);
for (auto & s : settings)
if (hasPrefix(s.first, prefix))
completions.add(s.first, fmt("Set the `%s` setting.", s.first));
}
}
});
addFlag({
.longName = "log-format",
.description = "Set the format of log output; one of `raw`, `internal-json`, `bar` or `bar-with-logs`.",
.category = loggingCategory,
.labels = {"format"},
.handler = {[](std::string format) { setLogFormat(format); }},
});
addFlag({
.longName = "max-jobs",
.shortName = 'j',
.description = "The maximum number of parallel builds.",
.labels = Strings{"jobs"},
.handler = {[=](std::string s) {
settings.set("max-jobs", s);
}}
});
std::string cat = "Options to override configuration settings";
globalConfig.convertToArgs(*this, cat);
// Backward compatibility hack: nix-env already had a --system flag.
if (programName == "nix-env") longFlags.erase("system");
hiddenCategories.insert(cat);
}
void MixCommonArgs::initialFlagsProcessed()
{
initPlugins();
pluginsInited();
}
}