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New command line parsing infrastructure

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This commit is contained in:
Eelco Dolstra 2016-02-09 21:07:48 +01:00
parent c780c1124e
commit 0db9e6cd1a
6 changed files with 472 additions and 81 deletions
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37
src/libmain/common-args.cc Normal file
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#include "common-args.hh"
#include "globals.hh"
namespace nix {
MixCommonArgs::MixCommonArgs(const string & programName)
{
mkFlag('v', "verbose", "increase verbosity level", []() {
verbosity = (Verbosity) (verbosity + 1);
});
mkFlag(0, "quiet", "decrease verbosity level", []() {
verbosity = verbosity > lvlError ? (Verbosity) (verbosity - 1) : lvlError;
});
mkFlag(0, "debug", "enable debug output", []() {
verbosity = lvlDebug;
});
mkFlag1(0, "log-type", "type", "set logging format ('pretty', 'flat', 'systemd')",
[](std::string s) {
if (s == "pretty") logType = ltPretty;
else if (s == "escapes") logType = ltEscapes;
else if (s == "flat") logType = ltFlat;
else if (s == "systemd") logType = ltSystemd;
else throw UsageError("unknown log type");
});
mkFlag(0, "option", {"name", "value"}, "set a Nix configuration option (overriding nix.conf)", 2,
[](Strings ss) {
auto name = ss.front(); ss.pop_front();
auto value = ss.front();
settings.set(name, value);
});
}
}