forked from lix-project/lix
62 lines
1.5 KiB
C++
62 lines
1.5 KiB
C++
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#include "outputs-spec.hh"
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#include "nlohmann/json.hpp"
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#include <regex>
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namespace nix {
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std::pair<std::string, OutputsSpec> parseOutputsSpec(const std::string & s)
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{
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static std::regex regex(R"((.*)\^((\*)|([a-z]+(,[a-z]+)*)))");
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std::smatch match;
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if (!std::regex_match(s, match, regex))
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return {s, DefaultOutputs()};
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if (match[3].matched)
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return {match[1], AllOutputs()};
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return {match[1], tokenizeString<OutputNames>(match[4].str(), ",")};
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}
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std::string printOutputsSpec(const OutputsSpec & outputsSpec)
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{
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if (std::get_if<DefaultOutputs>(&outputsSpec))
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return "";
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if (std::get_if<AllOutputs>(&outputsSpec))
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return "^*";
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if (auto outputNames = std::get_if<OutputNames>(&outputsSpec))
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return "^" + concatStringsSep(",", *outputNames);
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assert(false);
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}
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void to_json(nlohmann::json & json, const OutputsSpec & outputsSpec)
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{
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if (std::get_if<DefaultOutputs>(&outputsSpec))
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json = nullptr;
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else if (std::get_if<AllOutputs>(&outputsSpec))
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json = std::vector<std::string>({"*"});
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else if (auto outputNames = std::get_if<OutputNames>(&outputsSpec))
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json = *outputNames;
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}
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void from_json(const nlohmann::json & json, OutputsSpec & outputsSpec)
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{
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if (json.is_null())
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outputsSpec = DefaultOutputs();
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else {
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auto names = json.get<OutputNames>();
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if (names == OutputNames({"*"}))
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outputsSpec = AllOutputs();
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else
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outputsSpec = names;
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}
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}
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}
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