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path: root/src/libstore/parsed-derivations.cc
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2020-06-17Reserve the `__contentAddressed` derivation parameterregnat
Not implementing anything here, just throwing an error if a derivation sets `__contentAddressed = true` without `--experimental-features content-addressed-paths` (and also with it as there's nothing implemented yet)
2020-06-16Remove StorePath::clone() and related functionsEelco Dolstra
2020-03-24Misc changes from the flakes branchEelco Dolstra
2019-12-10Make the Store API more type-safeEelco Dolstra
Most functions now take a StorePath argument rather than a Path (which is just an alias for std::string). The StorePath constructor ensures that the path is syntactically correct (i.e. it looks like <store-dir>/<base32-hash>-<name>). Similarly, functions like buildPaths() now take a StorePathWithOutputs, rather than abusing Path by adding a '!<outputs>' suffix. Note that the StorePath type is implemented in Rust. This involves some hackery to allow Rust values to be used directly in C++, via a helper type whose destructor calls the Rust type's drop() function. The main issue is the dynamic nature of C++ move semantics: after we have moved a Rust value, we should not call the drop function on the original value. So when we move a value, we set the original value to bitwise zero, and the destructor only calls drop() if the value is not bitwise zero. This should be sufficient for most types. Also lots of minor cleanups to the C++ API to make it more modern (e.g. using std::optional and std::string_view in some places).
2019-09-03Support allowSubstitutes attribute in structured attribute derivationsEelco Dolstra
Hopefully fixes #3081 (didn't test).
2019-03-14experimental/optional -> optionalEelco Dolstra
2018-09-28Check requiredSystemFeatures for local buildsEelco Dolstra
For example, this prevents a "kvm" build on machines that don't have KVM. Fixes #2012.
2018-09-28Move structured attrs handling into a separate classEelco Dolstra
This is primarily because Derivation::{can,will}BuildLocally() depends on attributes like preferLocalBuild and requiredSystemFeatures, but it can't handle them properly because it doesn't have access to the structured attributes.