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Shuffle ValidPathInfo JSON rendering

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`Store::pathInfoToJSON` was a rather baroque functions, being full of
parameters to support both parsed derivations and `nix path-info`. The
common core of each, a simple `dValidPathInfo::toJSON` function, is
factored out, but the rest of the logic is just duplicated and then
specialized to its use-case (at which point it is no longer that
duplicated).

This keeps the human oriented CLI logic (which is currently unstable)
and the core domain logic (export reference graphs with structured
attrs, which is stable), separate, which I think is better.
This commit is contained in:
John Ericson 2023-10-22 21:12:54 -04:00
parent 0b0d1b5214
commit 937e02e7b9
15 changed files with 499 additions and 119 deletions
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34
src/libstore/parsed-derivations.cc
View file

@ -132,6 +132,36 @@ bool ParsedDerivation::useUidRange() const
static std::regex shVarName("[A-Za-z_][A-Za-z0-9_]*");
/**
* Write a JSON representation of store object metadata, such as the
* hash and the references.
*/
static nlohmann::json pathInfoToJSON(
Store & store,
const StorePathSet & storePaths)
{
nlohmann::json::array_t jsonList = nlohmann::json::array();
for (auto & storePath : storePaths) {
auto info = store.queryPathInfo(storePath);
auto & jsonPath = jsonList.emplace_back(
info->toJSON(store, false, HashFormat::Base32));
jsonPath["closureSize"] = ({
uint64_t totalNarSize = 0;
StorePathSet closure;
store.computeFSClosure(info->path, closure, false, false);
for (auto & p : closure) {
auto info = store.queryPathInfo(p);
totalNarSize += info->narSize;
}
totalNarSize;
});
}
return jsonList;
}
std::optional<nlohmann::json> ParsedDerivation::prepareStructuredAttrs(Store & store, const StorePathSet & inputPaths)
{
auto structuredAttrs = getStructuredAttrs();
@ -152,8 +182,8 @@ std::optional<nlohmann::json> ParsedDerivation::prepareStructuredAttrs(Store & s
StorePathSet storePaths;
for (auto & p : *i)
storePaths.insert(store.parseStorePath(p.get<std::string>()));
json[i.key()] = store.pathInfoToJSON(
store.exportReferences(storePaths, inputPaths), false, true);
json[i.key()] = pathInfoToJSON(store,
store.exportReferences(storePaths, inputPaths));
}
}