diff options
| -rw-r--r-- | src/libcmd/installables.cc | 66 |
1 files changed, 38 insertions, 28 deletions
diff --git a/src/libcmd/installables.cc b/src/libcmd/installables.cc index 58b5ef9b9..c791eef39 100644 --- a/src/libcmd/installables.cc +++ b/src/libcmd/installables.cc @@ -402,18 +402,6 @@ struct InstallableStorePath : Installable ref<Store> store; DerivedPath req; - InstallableStorePath(ref<Store> store, StorePath && storePath) - : store(store), - req(storePath.isDerivation() - ? (DerivedPath) DerivedPath::Built { - .drvPath = std::move(storePath), - .outputs = {}, - } - : (DerivedPath) DerivedPath::Opaque { - .path = std::move(storePath), - }) - { } - InstallableStorePath(ref<Store> store, DerivedPath && req) : store(store), req(std::move(req)) { } @@ -814,24 +802,46 @@ std::vector<std::shared_ptr<Installable>> SourceExprCommand::parseInstallables( for (auto & s : ss) { std::exception_ptr ex; - auto found = s.rfind('^'); - if (found != std::string::npos) { - try { - result.push_back(std::make_shared<InstallableStorePath>( - store, - DerivedPath::Built::parse(*store, s.substr(0, found), s.substr(found + 1)))); - continue; - } catch (BadStorePath &) { - } catch (...) { - if (!ex) - ex = std::current_exception(); - } - } + auto [prefix_, extendedOutputsSpec_] = ExtendedOutputsSpec::parse(s); + // To avoid clang's pedantry + auto prefix = std::move(prefix_); + auto extendedOutputsSpec = std::move(extendedOutputsSpec_); - found = s.find('/'); + auto found = prefix.find('/'); if (found != std::string::npos) { try { - result.push_back(std::make_shared<InstallableStorePath>(store, store->followLinksToStorePath(s))); + auto derivedPath = std::visit(overloaded { + // If the user did not use ^, we treat the output more liberally. + [&](const ExtendedOutputsSpec::Default &) -> DerivedPath { + // First, we accept a symlink chain or an actual store path. + auto storePath = store->followLinksToStorePath(prefix); + // Second, we see if the store path ends in `.drv` to decide what sort + // of derived path they want. + // + // This handling predates the `^` syntax. The `^*` in + // `/nix/store/hash-foo.drv^*` unambiguously means "do the + // `DerivedPath::Built` case", so plain `/nix/store/hash-foo.drv` could + // also unambiguously mean "do the DerivedPath::Opaque` case". + // + // Issue #7261 tracks reconsidering this `.drv` dispatching. + return storePath.isDerivation() + ? (DerivedPath) DerivedPath::Built { + .drvPath = std::move(storePath), + .outputs = {}, + } + : (DerivedPath) DerivedPath::Opaque { + .path = std::move(storePath), + }; + }, + // If the user did use ^, we just do exactly what is written. + [&](const ExtendedOutputsSpec::Explicit & outputSpec) -> DerivedPath { + return DerivedPath::Built { + .drvPath = store->parseStorePath(prefix), + .outputs = outputSpec, + }; + }, + }, extendedOutputsSpec.raw()); + result.push_back(std::make_shared<InstallableStorePath>(store, std::move(derivedPath))); continue; } catch (BadStorePath &) { } catch (...) { @@ -841,7 +851,7 @@ std::vector<std::shared_ptr<Installable>> SourceExprCommand::parseInstallables( } try { - auto [flakeRef, fragment, extendedOutputsSpec] = parseFlakeRefWithFragmentAndExtendedOutputsSpec(s, absPath(".")); + auto [flakeRef, fragment] = parseFlakeRefWithFragment(std::string { prefix }, absPath(".")); result.push_back(std::make_shared<InstallableFlake>( this, getEvalState(), |