nix: Make all options available as flags
Thus, instead of ‘--option <name> <value>’, you can write ‘--<name> <value>’. So --option http-connections 100 becomes --http-connections 100 Apart from brevity, the difference is that it's not an error to set a non-existent option via --option, but unrecognized arguments are fatal. Boolean options have special treatment: they're mapped to the argument-less flags ‘--<name>’ and ‘--no-<name>’. E.g. --option auto-optimise-store false becomes --no-auto-optimise-store
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@ -98,6 +98,13 @@ template<> void BaseSetting<SandboxMode>::toJSON(JSONPlaceholder & out)
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AbstractSetting::toJSON(out);
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}
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template<> void BaseSetting<SandboxMode>::convertToArg(Args & args)
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{
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args.mkFlag(0, name, {}, "Enable sandboxing.", 0, [=](Strings ss) { value = smEnabled; });
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args.mkFlag(0, "no-" + name, {}, "Disable sandboxing.", 0, [=](Strings ss) { value = smDisabled; });
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args.mkFlag(0, "relaxed-" + name, {}, "Enable sandboxing, but allow builds to disable it.", 0, [=](Strings ss) { value = smRelaxed; });
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}
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void MaxBuildJobsSetting::set(const std::string & str)
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{
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if (str == "auto") value = std::max(1U, std::thread::hardware_concurrency());
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@ -115,6 +115,13 @@ void Config::toJSON(JSONObject & out)
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}
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}
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void Config::convertToArgs(Args & args)
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{
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for (auto & s : _settings)
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if (!s.second.isAlias)
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s.second.setting->convertToArg(args);
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}
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AbstractSetting::AbstractSetting(
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const std::string & name,
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const std::string & description,
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@ -128,12 +135,22 @@ void AbstractSetting::toJSON(JSONPlaceholder & out)
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out.write(to_string());
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}
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void AbstractSetting::convertToArg(Args & args)
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{
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}
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template<typename T>
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void BaseSetting<T>::toJSON(JSONPlaceholder & out)
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{
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out.write(value);
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}
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template<typename T>
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void BaseSetting<T>::convertToArg(Args & args)
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{
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args.mkFlag(0, name, {}, description, 1, [=](Strings ss) { set(*ss.begin()); });
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}
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template<> void BaseSetting<std::string>::set(const std::string & str)
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{
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value = str;
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@ -174,6 +191,12 @@ template<> std::string BaseSetting<bool>::to_string()
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return value ? "true" : "false";
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}
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template<> void BaseSetting<bool>::convertToArg(Args & args)
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{
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args.mkFlag(0, name, {}, description, 0, [=](Strings ss) { value = true; });
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args.mkFlag(0, "no-" + name, {}, description, 0, [=](Strings ss) { value = false; });
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}
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template<> void BaseSetting<Strings>::set(const std::string & str)
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{
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value = tokenizeString<Strings>(str);
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@ -216,6 +239,8 @@ template class BaseSetting<long long>;
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template class BaseSetting<unsigned long long>;
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template class BaseSetting<bool>;
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template class BaseSetting<std::string>;
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template class BaseSetting<Strings>;
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template class BaseSetting<StringSet>;
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void PathSetting::set(const std::string & str)
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{
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@ -63,6 +63,8 @@ public:
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void resetOverriden();
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void toJSON(JSONObject & out);
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void convertToArgs(Args & args);
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};
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class AbstractSetting
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@ -99,6 +101,8 @@ protected:
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virtual void toJSON(JSONPlaceholder & out);
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virtual void convertToArg(Args & args);
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bool isOverriden() { return overriden; }
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};
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@ -132,6 +136,8 @@ public:
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std::string to_string() override;
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void convertToArg(Args & args) override;
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void toJSON(JSONPlaceholder & out) override;
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};
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@ -22,6 +22,8 @@ struct NixArgs : virtual MultiCommand, virtual MixCommonArgs
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});
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mkFlag(0, "version", "show version information", std::bind(printVersion, programName));
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settings.convertToArgs(*this);
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}
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};
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