Add "nix show-config" command

This dumps the entire Nix configuration, including all options that
have default values.
This commit is contained in:
Eelco Dolstra 2017-04-13 20:59:38 +02:00
parent ba9ad29fdb
commit 872ba75d8b
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43
src/nix/show-config.cc Normal file
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#include "command.hh"
#include "common-args.hh"
#include "installables.hh"
#include "shared.hh"
#include "store-api.hh"
#include "json.hh"
using namespace nix;
struct CmdShowConfig : Command
{
bool json = false;
CmdShowConfig()
{
mkFlag(0, "json", "produce JSON output", &json);
}
std::string name() override
{
return "show-config";
}
std::string description() override
{
return "show the Nix configuration";
}
void run() override
{
if (json) {
// FIXME: use appropriate JSON types (bool, ints, etc).
JSONObject jsonObj(std::cout, true);
for (auto & s : settings.getSettings())
jsonObj.attr(s.first, s.second);
} else {
for (auto & s : settings.getSettings())
std::cout << s.first + " = " + s.second + "\n";
}
}
};
static RegisterCommand r1(make_ref<CmdShowConfig>());