Add a non-system specific `<flake>.lib.nixvim` output, which is
equivalent to the existing `<flake>.lib.<system>.helpers` output.
This is now also wrapped with `lib.makeOverridable` to allow overriding
the function args used to construct the nixvim-lib.
Consistently access nixvim-lib via the new flake output, overriding
where necessary.
Expose our locked nixpkgs as the `nixpkgs.source` module options.
This only happens when `evalNixvim` is part of a lib that was provided
`flake` as an argument.
Stubbed the `nixpkgs.source` option for now. Eventually, this will be
used to construct `pkgs` internally. For now, it's purely informational.
Move the previous `default.nix` to `main.nix` so that `default.nix` can
be used for defining the set of all test derivations.
`main.nix` is imported by `default.nix`, but is only responsible for the
tests built from `tests/test-sources/`.
This minimal implementation allows `nixpkgs.pkgs` to be defined, but
does not implement evaluating an instance from a pkgsPath when _not_
defined.
The `defaultPkgs` specialArg is dropped in favour of `nixpkgs.pkgs`
being defined. If it's not defined, an assertion is thrown.
In the future, a nixpkgs source path can be supplied, defaulting to the
flake's `inputs.nixpkgs`. Along with other `nixpkgs.*` options, this
will allow a `pkgs` instance to be evaluated within the module eval.
In the two places where our "helpers" lib is exclusively internal
(flake module args and building the docs), we no longer supply `pkgs`.
In the other 4 locations, we now note why we still do in a comment.
Splits everything that depends on a `pkgs` instance into an optional
attrs, allowing `helpers.nix` to be bootstrapped without `pkgs`.
This required some refactoring:
- `modules.specialArgs` is only available when `pkgs` is used
- `modules.specialArgsWith` now requires `defaultPkgs` be provided
- `builders.*` now have `*With` variants that take `pkgs` as an argument
and a `withPkgs` function that returns the old interface
- Had to define the fixed part of `builders` outside the attrs for now,
to avoid infinite recursion.
- The old `builders` are now deprecated, and print a warning when
evaluated
- `withOptoinalFns` was introduced to merge the optional attrs into the
final lib.
The old `default.nix` is inlined into the "lib" flake-module, which is
the only place it was used.
This allows "helpers" to take its rightful place at the root of `./lib` 👑
