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Use BuildableReq for buildPaths and ensurePath

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This avoids an ambiguity where the `StorePathWithOutputs { drvPath, {}
}` could mean "build `brvPath`" or "substitute `drvPath`" depending on
context.

It also brings the internals closer in line to the new CLI, by
generalizing the `Buildable` type is used there and makes that
distinction already.

In doing so, relegate `StorePathWithOutputs` to being a type just for
backwards compatibility (CLI and RPC).
This commit is contained in:
John Ericson 2021-03-02 03:50:41 +00:00
parent 32f4454b9f
commit 255d145ba7
31 changed files with 364 additions and 126 deletions
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1
src/libexpr/get-drvs.cc
View file

@ -2,6 +2,7 @@
#include "util.hh"
#include "eval-inline.hh"
#include "store-api.hh"
#include "path-with-outputs.hh"
#include <cstring>
#include <regex>

12
src/libexpr/primops.cc
View file

@ -35,7 +35,7 @@ InvalidPathError::InvalidPathError(const Path & path) :
void EvalState::realiseContext(const PathSet & context)
{
std::vector<StorePathWithOutputs> drvs;
std::vector<BuildableReqFromDrv> drvs;
for (auto & i : context) {
auto [ctxS, outputName] = decodeContext(i);
@ -43,7 +43,7 @@ void EvalState::realiseContext(const PathSet & context)
if (!store->isValidPath(ctx))
throw InvalidPathError(store->printStorePath(ctx));
if (!outputName.empty() && ctx.isDerivation()) {
drvs.push_back(StorePathWithOutputs{ctx, {outputName}});
drvs.push_back({ctx, {outputName}});
}
}
@ -51,14 +51,16 @@ void EvalState::realiseContext(const PathSet & context)
if (!evalSettings.enableImportFromDerivation)
throw EvalError("attempted to realize '%1%' during evaluation but 'allow-import-from-derivation' is false",
store->printStorePath(drvs.begin()->path));
store->printStorePath(drvs.begin()->drvPath));
/* For performance, prefetch all substitute info. */
StorePathSet willBuild, willSubstitute, unknown;
uint64_t downloadSize, narSize;
store->queryMissing(drvs, willBuild, willSubstitute, unknown, downloadSize, narSize);
std::vector<BuildableReq> buildReqs;
for (auto & d : drvs) buildReqs.emplace_back(BuildableReq { d });
store->queryMissing(buildReqs, willBuild, willSubstitute, unknown, downloadSize, narSize);
store->buildPaths(drvs);
store->buildPaths(buildReqs);
/* Add the output of this derivations to the allowed
paths. */