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Merge pull request #6242 from ncfavier/print-output-names

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nix-env: always print output names in JSON and XML
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Théophane Hufschmitt 2022-03-17 10:55:22 +01:00 • committed by GitHub
commit a0b517de57
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5 changed files with 106 additions and 86 deletions
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28
src/libexpr/get-drvs.cc
View file

@ -102,7 +102,7 @@ StorePath DrvInfo::queryOutPath() const
}
DrvInfo::Outputs DrvInfo::queryOutputs(bool onlyOutputsToInstall)
DrvInfo::Outputs DrvInfo::queryOutputs(bool withPaths, bool onlyOutputsToInstall)
{
if (outputs.empty()) {
/* Get the ‘outputs’ list. */
@ -112,20 +112,24 @@ DrvInfo::Outputs DrvInfo::queryOutputs(bool onlyOutputsToInstall)
/* For each output... */
for (auto elem : i->value->listItems()) {
/* Evaluate the corresponding set. */
std::string name(state->forceStringNoCtx(*elem, *i->pos));
Bindings::iterator out = attrs->find(state->symbols.create(name));
if (out == attrs->end()) continue; // FIXME: throw error?
state->forceAttrs(*out->value, *i->pos);
std::string output(state->forceStringNoCtx(*elem, *i->pos));
/* And evaluate its ‘outPath’ attribute. */
Bindings::iterator outPath = out->value->attrs->find(state->sOutPath);
if (outPath == out->value->attrs->end()) continue; // FIXME: throw error?
PathSet context;
outputs.emplace(name, state->coerceToStorePath(*outPath->pos, *outPath->value, context));
if (withPaths) {
/* Evaluate the corresponding set. */
Bindings::iterator out = attrs->find(state->symbols.create(output));
if (out == attrs->end()) continue; // FIXME: throw error?
state->forceAttrs(*out->value, *i->pos);
/* And evaluate its ‘outPath’ attribute. */
Bindings::iterator outPath = out->value->attrs->find(state->sOutPath);
if (outPath == out->value->attrs->end()) continue; // FIXME: throw error?
PathSet context;
outputs.emplace(output, state->coerceToStorePath(*outPath->pos, *outPath->value, context));
} else
outputs.emplace(output, std::nullopt);
}
} else
outputs.emplace("out", queryOutPath());
outputs.emplace("out", withPaths ? std::optional{queryOutPath()} : std::nullopt);
}
if (!onlyOutputsToInstall || !attrs)
return outputs;

7
src/libexpr/get-drvs.hh
View file

@ -13,7 +13,7 @@ namespace nix {
struct DrvInfo
{
public:
typedef std::map<std::string, StorePath> Outputs;
typedef std::map<std::string, std::optional<StorePath>> Outputs;
private:
EvalState * state;
@ -46,8 +46,9 @@ public:
StorePath requireDrvPath() const;
StorePath queryOutPath() const;
std::string queryOutputName() const;
/** Return the list of outputs. The "outputs to install" are determined by `meta.outputsToInstall`. */
Outputs queryOutputs(bool onlyOutputsToInstall = false);
/** Return the unordered map of output names to (optional) output paths.
* The "outputs to install" are determined by `meta.outputsToInstall`. */
Outputs queryOutputs(bool withPaths = true, bool onlyOutputsToInstall = false);
StringSet queryMetaNames();
Value * queryMeta(const std::string & name);