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Merge pull request #7657 from obsidiansystems/fix-7655

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Fix #7655
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Robert Hensing 2023-01-23 15:42:59 +01:00 committed by GitHub
parent a58e9c3860 0afdf4084c
commit 0a9acefeb5
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 22 additions and 7 deletions
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4
src/libexpr/primops/context.cc
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@ -83,15 +83,13 @@ static void prim_getContext(EvalState & state, const PosIdx pos, Value * * args,
state.forceString(*args[0], context, pos, "while evaluating the argument passed to builtins.getContext"); state.forceString(*args[0], context, pos, "while evaluating the argument passed to builtins.getContext");
auto contextInfos = std::map<StorePath, ContextInfo>(); auto contextInfos = std::map<StorePath, ContextInfo>();
for (const auto & p : context) { for (const auto & p : context) {
Path drv;
std::string output;
NixStringContextElem ctx = NixStringContextElem::parse(*state.store, p); NixStringContextElem ctx = NixStringContextElem::parse(*state.store, p);
std::visit(overloaded { std::visit(overloaded {
[&](NixStringContextElem::DrvDeep & d) { [&](NixStringContextElem::DrvDeep & d) {
contextInfos[d.drvPath].allOutputs = true; contextInfos[d.drvPath].allOutputs = true;
}, },
[&](NixStringContextElem::Built & b) { [&](NixStringContextElem::Built & b) {
contextInfos[b.drvPath].outputs.emplace_back(std::move(output)); contextInfos[b.drvPath].outputs.emplace_back(std::move(b.output));
}, },
[&](NixStringContextElem::Opaque & o) { [&](NixStringContextElem::Opaque & o) {
contextInfos[o.path].path = true; contextInfos[o.path].path = true;

2
tests/lang/eval-okay-context-introspection.exp
View file

@ -1 +1 @@
true [ true true true true true true ]

23
tests/lang/eval-okay-context-introspection.nix
View file

@ -18,7 +18,24 @@ let
}; };
}; };
legit-context = builtins.getContext "${path}${drv.outPath}${drv.foo.outPath}${drv.drvPath}"; combo-path = "${path}${drv.outPath}${drv.foo.outPath}${drv.drvPath}";
legit-context = builtins.getContext combo-path;
constructed-context = builtins.getContext (builtins.appendContext "" desired-context); reconstructed-path = builtins.appendContext
in legit-context == constructed-context (builtins.unsafeDiscardStringContext combo-path)
desired-context;
# Eta rule for strings with context.
etaRule = str:
str == builtins.appendContext
(builtins.unsafeDiscardStringContext str)
(builtins.getContext str);
in [
(legit-context == desired-context)
(reconstructed-path == combo-path)
(etaRule "foo")
(etaRule drv.drvPath)
(etaRule drv.foo.outPath)
(etaRule (builtins.unsafeDiscardOutputDependency drv.drvPath))
]