forked from lix-project/lix
nix flake show --json: Add type info
For extensibility, every leaf node is now an object that contains at least a type field (e.g. "type": "derivation").
This commit is contained in:
Eelco Dolstra
parent
f3259af73e
commit
1fbaf36729
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@ -876,56 +876,54 @@ struct CmdFlakeShow : FlakeCommand, MixJSON
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auto state = getEvalState();
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auto state = getEvalState();
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auto flake = std::make_shared<LockedFlake>(lockFlake());
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auto flake = std::make_shared<LockedFlake>(lockFlake());
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std::function<void(eval_cache::AttrCursor & visitor, const std::vector<Symbol> & attrPath, const std::string & headerPrefix, const std::string & nextPrefix)> visit;
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std::function<nlohmann::json(
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eval_cache::AttrCursor & visitor,
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const std::vector<Symbol> & attrPath,
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const std::string & headerPrefix,
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const std::string & nextPrefix)> visit;
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nlohmann::json j;
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visit = [&](
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// Populate json attributes along `attrPath` with a leaf value of `name`
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eval_cache::AttrCursor & visitor,
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auto populateJson = [&](const std::vector<Symbol> & attrPath, const std::string name)
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const std::vector<Symbol> & attrPath,
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const std::string & headerPrefix,
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const std::string & nextPrefix)
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-> nlohmann::json
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{
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{
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nlohmann::json* r = & j;
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auto j = nlohmann::json::object();
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for (const auto & element : attrPath){
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(*r)[element] = (*r)[element].is_null() ? nlohmann::json({}) : (*r)[element];
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r = & (*r)[element];
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}
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(*r) = name;
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};
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visit = [&](eval_cache::AttrCursor & visitor, const std::vector<Symbol> & attrPath, const std::string & headerPrefix, const std::string & nextPrefix)
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{
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Activity act(*logger, lvlInfo, actUnknown,
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Activity act(*logger, lvlInfo, actUnknown,
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fmt("evaluating '%s'", concatStringsSep(".", attrPath)));
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fmt("evaluating '%s'", concatStringsSep(".", attrPath)));
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try {
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try {
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auto recurse = [&]()
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auto recurse = [&]()
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{
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{
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if (!json){
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if (!json)
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logger->cout("%s", headerPrefix);
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logger->cout("%s", headerPrefix);
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}
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auto attrs = visitor.getAttrs();
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auto attrs = visitor.getAttrs();
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for (const auto & [i, attr] : enumerate(attrs)) {
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for (const auto & [i, attr] : enumerate(attrs)) {
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bool last = i + 1 == attrs.size();
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bool last = i + 1 == attrs.size();
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auto visitor2 = visitor.getAttr(attr);
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auto visitor2 = visitor.getAttr(attr);
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auto attrPath2(attrPath);
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auto attrPath2(attrPath);
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attrPath2.push_back(attr);
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attrPath2.push_back(attr);
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visit(*visitor2, attrPath2,
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auto j2 = visit(*visitor2, attrPath2,
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fmt(ANSI_GREEN "%s%s" ANSI_NORMAL ANSI_BOLD "%s" ANSI_NORMAL, nextPrefix, last ? treeLast : treeConn, attr),
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fmt(ANSI_GREEN "%s%s" ANSI_NORMAL ANSI_BOLD "%s" ANSI_NORMAL, nextPrefix, last ? treeLast : treeConn, attr),
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nextPrefix + (last ? treeNull : treeLine));
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nextPrefix + (last ? treeNull : treeLine));
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if (json) j.emplace(attr, std::move(j2));
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}
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}
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};
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};
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auto showDerivation = [&]()
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auto showDerivation = [&]()
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{
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{
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auto name = visitor.getAttr(state->sName)->getString();
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auto name = visitor.getAttr(state->sName)->getString();
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if (json) {
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/*
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std::optional<std::string> description;
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std::string description;
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if (auto aMeta = visitor.maybeGetAttr("meta")) {
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if (auto aMeta = visitor.maybeGetAttr("meta")) {
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if (auto aDescription = aMeta->maybeGetAttr("description"))
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if (auto aDescription = aMeta->maybeGetAttr("description"))
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description = aDescription->getString();
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description = aDescription->getString();
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}
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}
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*/
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j.emplace("type", "derivation");
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if (json){
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j.emplace("name", name);
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populateJson(attrPath,name);
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if (description)
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j.emplace("description", *description);
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} else {
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} else {
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logger->cout("%s: %s '%s'",
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logger->cout("%s: %s '%s'",
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headerPrefix,
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headerPrefix,
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@ -996,8 +994,8 @@ struct CmdFlakeShow : FlakeCommand, MixJSON
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auto aType = visitor.maybeGetAttr("type");
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auto aType = visitor.maybeGetAttr("type");
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if (!aType || aType->getString() != "app")
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if (!aType || aType->getString() != "app")
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throw EvalError("not an app definition");
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throw EvalError("not an app definition");
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if(json){
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if (json) {
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populateJson(attrPath,"app");
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j.emplace("type", "app");
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} else {
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} else {
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logger->cout("%s: app", headerPrefix);
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logger->cout("%s: app", headerPrefix);
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}
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}
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@ -1008,21 +1006,23 @@ struct CmdFlakeShow : FlakeCommand, MixJSON
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(attrPath.size() == 2 && attrPath[0] == "templates"))
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(attrPath.size() == 2 && attrPath[0] == "templates"))
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{
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{
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auto description = visitor.getAttr("description")->getString();
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auto description = visitor.getAttr("description")->getString();
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if(json){
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if (json) {
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populateJson(attrPath,description);
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j.emplace("type", "template");
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j.emplace("description", description);
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} else {
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} else {
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logger->cout("%s: template: " ANSI_BOLD "%s" ANSI_NORMAL, headerPrefix, description);
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logger->cout("%s: template: " ANSI_BOLD "%s" ANSI_NORMAL, headerPrefix, description);
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}
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}
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}
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}
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else {
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else {
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auto description = (attrPath.size() == 1 && attrPath[0] == "overlay")
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auto [type, description] =
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|| (attrPath.size() == 2 && attrPath[0] == "overlays") ? "Nixpkgs overlay" :
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(attrPath.size() == 1 && attrPath[0] == "overlay")
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attrPath.size() == 2 && attrPath[0] == "nixosConfigurations" ? "NixOS configuration" :
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|| (attrPath.size() == 2 && attrPath[0] == "overlays") ? std::make_pair("nixpkgs-overlay", "Nixpkgs overlay") :
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attrPath.size() == 2 && attrPath[0] == "nixosModules" ? "NixOS module" :
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attrPath.size() == 2 && attrPath[0] == "nixosConfigurations" ? std::make_pair("nixos-configuration", "NixOS configuration") :
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"unknown";
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attrPath.size() == 2 && attrPath[0] == "nixosModules" ? std::make_pair("nixos-module", "NixOS module") :
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if(json){
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std::make_pair("unknown", "unknown");
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populateJson(attrPath,description);
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if (json) {
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j.emplace("type", type);
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} else {
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} else {
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logger->cout("%s: " ANSI_WARNING "%s" ANSI_NORMAL, headerPrefix, description);
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logger->cout("%s: " ANSI_WARNING "%s" ANSI_NORMAL, headerPrefix, description);
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}
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}
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@ -1031,15 +1031,16 @@ struct CmdFlakeShow : FlakeCommand, MixJSON
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if (!(attrPath.size() > 0 && attrPath[0] == "legacyPackages"))
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if (!(attrPath.size() > 0 && attrPath[0] == "legacyPackages"))
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throw;
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throw;
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}
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}
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return j;
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};
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};
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auto cache = openEvalCache(*state, flake);
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auto cache = openEvalCache(*state, flake);
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visit(*cache->getRoot(), {}, fmt(ANSI_BOLD "%s" ANSI_NORMAL, flake->flake.lockedRef), "");
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auto j = visit(*cache->getRoot(), {}, fmt(ANSI_BOLD "%s" ANSI_NORMAL, flake->flake.lockedRef), "");
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if(json){
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if (json)
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logger->cout("%s", j.dump());
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logger->cout("%s", j.dump());
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}
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}
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}
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};
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};
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struct CmdFlakePrefetch : FlakeCommand, MixJSON
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struct CmdFlakePrefetch : FlakeCommand, MixJSON
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