lix/src/libmain/common-args.cc
2020-05-04 22:40:19 +02:00

61 lines
1.6 KiB
C++

#include "common-args.hh"
#include "globals.hh"
namespace nix {
MixCommonArgs::MixCommonArgs(const string & programName)
: programName(programName)
{
addFlag({
.longName = "verbose",
.shortName = 'v',
.description = "increase verbosity level",
.handler = {[]() { verbosity = (Verbosity) (verbosity + 1); }},
});
addFlag({
.longName = "quiet",
.description = "decrease verbosity level",
.handler = {[]() { verbosity = verbosity > lvlError ? (Verbosity) (verbosity - 1) : lvlError; }},
});
addFlag({
.longName = "debug",
.description = "enable debug output",
.handler = {[]() { verbosity = lvlDebug; }},
});
addFlag({
.longName = "option",
.description = "set a Nix configuration option (overriding nix.conf)",
.labels = {"name", "value"},
.handler = {[](std::string name, std::string value) {
try {
globalConfig.set(name, value);
} catch (UsageError & e) {
warn(e.what());
}
}},
});
addFlag({
.longName = "max-jobs",
.shortName = 'j',
.description = "maximum number of parallel builds",
.labels = Strings{"jobs"},
.handler = {[=](std::string s) {
settings.set("max-jobs", s);
}}
});
std::string cat = "config";
globalConfig.convertToArgs(*this, cat);
// Backward compatibility hack: nix-env already had a --system flag.
if (programName == "nix-env") longFlags.erase("system");
hiddenCategories.insert(cat);
}
}