lix -

Age	Commit message (Collapse)	Author
2022-02-25	Remove std::string alias (for real this time)	Eelco Dolstra
	Also use std::string_view in a few more places.
2022-01-27	optionally return string_view from coerceToString	pennae
	we'll retain the old coerceToString interface that returns a string, but callers that don't need the returned value to outlive the Value it came from can save copies by using the new interface instead. for values that weren't stringy we'll pass a new buffer argument that'll be used for storage and shouldn't be inspected.
2022-01-27	return string_views from forceString*	pennae
	once a string has been forced we already have dynamic storage allocated for it, so we can easily reuse that storage instead of copying.
2022-01-04	Remove non-method mk<X> functions	Eelco Dolstra

2022-01-04	Remove non-method mkString()	Eelco Dolstra

2022-01-04	Ensure that attrsets are sorted	Eelco Dolstra
	Previously you had to remember to call value->attrs->sort() after populating value->attrs. Now there is a BindingsBuilder helper that wraps Bindings and ensures that sort() is called before you can use it.
2021-11-25	Support range-based for loop over list values	Eelco Dolstra

2021-01-21	Improve error formatting	Eelco Dolstra
	Changes: * The divider lines are gone. These were in practice a bit confusing, in particular with --show-trace or --keep-going, since then there were multiple lines, suggesting a start/end which wasn't the case. * Instead, multi-line error messages are now indented to align with the prefix (e.g. "error: "). * The 'description' field is gone since we weren't really using it. * 'hint' is renamed to 'msg' since it really wasn't a hint. * The error is now printed before the location info. * The 'name' field is no longer printed since most of the time it wasn't very useful since it was just the name of the exception (like EvalError). Ideally in the future this would be a unique, easily googleable error ID (like rustc). * "trace:" is now just "…". This assumes error contexts start with something like "while doing X". Example before: error: --- AssertionError ---------------------------------------------------------------------------------------- nix at: (7:7) in file: /home/eelco/Dev/nixpkgs/pkgs/applications/misc/hello/default.nix 6\| 7\| x = assert false; 1; \| ^ 8\| assertion 'false' failed ----------------------------------------------------- show-trace ----------------------------------------------------- trace: while evaluating the attribute 'x' of the derivation 'hello-2.10' at: (192:11) in file: /home/eelco/Dev/nixpkgs/pkgs/stdenv/generic/make-derivation.nix 191\| // (lib.optionalAttrs (!(attrs ? name) && attrs ? pname && attrs ? version)) { 192\| name = "${attrs.pname}-${attrs.version}"; \| ^ 193\| } // (lib.optionalAttrs (stdenv.hostPlatform != stdenv.buildPlatform && !dontAddHostSuffix && (attrs ? name \|\| (attrs ? pname && attrs ? version)))) { Example after: error: assertion 'false' failed at: (7:7) in file: /home/eelco/Dev/nixpkgs/pkgs/applications/misc/hello/default.nix 6\| 7\| x = assert false; 1; \| ^ 8\| … while evaluating the attribute 'x' of the derivation 'hello-2.10' at: (192:11) in file: /home/eelco/Dev/nixpkgs/pkgs/stdenv/generic/make-derivation.nix 191\| // (lib.optionalAttrs (!(attrs ? name) && attrs ? pname && attrs ? version)) { 192\| name = "${attrs.pname}-${attrs.version}"; \| ^ 193\| } // (lib.optionalAttrs (stdenv.hostPlatform != stdenv.buildPlatform && !dontAddHostSuffix && (attrs ? name \|\| (attrs ? pname && attrs ? version)))) {
2020-10-06	Remove static variable name clashes	Eelco Dolstra
	This was useful for an experiment with building Nix as a single compilation unit. It's not very useful otherwise but also doesn't hurt...
2020-06-23	use plain errPos instead of nixCode; fix tests	Ben Burdette

2020-06-18	Merge branch 'validPathInfo-temp' into validPathInfo-ca-proper-datatype	John Ericson

2020-06-15	Get rid of explicit ErrorInfo constructors	Eelco Dolstra

2020-05-13	formatting and a few minor changes	Ben Burdette

2020-05-08	add pos to errorinfo, remove from hints	Ben Burdette

2020-03-24	Flip dependency so store-api.hh includes derivations.hh	John Ericson
	I think it makes more sense to define the data model (derivations), before the operations (store api).
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).
2019-01-31	Add builtins.appendContext.	Shea Levy
	A partner of builtins.getContext, useful for the same reasons.
2019-01-14	Add builtins.getContext.	Shea Levy
	This can be very helpful when debugging, as well as enabling complex black magic like surgically removing a single dependency from a string's context.