lix -

Age	Commit message (Collapse)	Author
2023-01-23	Test store paths, with property tests	John Ericson
	The property test in fact found a bug: we were excluding numbers!
2022-03-31	Add support for impure derivations	Eelco Dolstra
	Impure derivations are derivations that can produce a different result every time they're built. Example: stdenv.mkDerivation { name = "impure"; __impure = true; # marks this derivation as impure outputHashAlgo = "sha256"; outputHashMode = "recursive"; buildCommand = "date > $out"; }; Some important characteristics: * This requires the 'impure-derivations' experimental feature. * Impure derivations are not "cached". Thus, running "nix-build" on the example above multiple times will cause a rebuild every time. * They are implemented similar to CA derivations, i.e. the output is moved to a content-addressed path in the store. The difference is that we don't register a realisation in the Nix database. * Pure derivations are not allowed to depend on impure derivations. In the future fixed-output derivations will be allowed to depend on impure derivations, thus forming an "impurity barrier" in the dependency graph. * When sandboxing is enabled, impure derivations can access the network in the same way as fixed-output derivations. In relaxed sandboxing mode, they can access the local filesystem.
2021-04-05	Move `StorePathWithOutputs` into its own header/file	John Ericson
	In the following commits it will become less prevalent.
2020-07-13	toStorePath(): Return a StorePath and the suffix	Eelco Dolstra

2020-06-16	Remove StorePath::clone() and related functions	Eelco Dolstra

2020-06-16	StorePath: Rewrite in C++	Eelco Dolstra
	On nix-env -qa -f '<nixpkgs>', this reduces maximum RSS by 20970 KiB and runtime by 0.8%. This is mostly because we're not parsing the hash part as a hash anymore (just validating that it consists of base-32 characters). Also, replace storePathToHash() by StorePath::hashPart().
2020-03-04	nix-build: Fix !<output> handling	Eelco Dolstra
	This was broken by 22a754c091f765061f59bef5ce091268493bb138. https://hydra.nixos.org/eval/1573669
2020-02-28	Fix GC failures on bad store path names	Eelco Dolstra
	It failed on names like '/nix/store/9ip48nkc9rfy0a4yaw98lp6gipqlib1a-'.
2020-01-21	Fix derivation computation with __structuredAttrs and multiple outputs	Eelco Dolstra
	Fixes error: derivation '/nix/store/klivma7r7h5lndb99f7xxmlh5whyayvg-zlib-1.2.11.drv' has incorrect output '/nix/store/fv98nnx5ykgbq8sqabilkgkbc4169q05-zlib-1.2.11-dev', should be '/nix/store/adm7pilzlj3z5k249s8b4wv3scprhzi1-zlib-1.2.11-dev'
2019-12-16	nix-store -r: Handle symlinks to store paths	Eelco Dolstra
	Fixes #3270.
2019-12-10	Make the Store API more type-safe	Eelco 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).