nix_rs 1.0.0

Rust library for interacting with the Nix command
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# Changelog

## 1.0.0

- **DeterminateSystems/flake-schemas**
  - Allow overriding the `nix` CLI command.
  - Switch to flake schema given by <https://github.com/DeterminateSystems/flake-schemas>
- **`flake::schema::FlakeSchema`**
  - Add `nixos_configurations`
- **`flake::url`**
  - `Flake::from_nix` explicitly takes `NixConfig` as argument, rather than implicitly running nix to get it.
  - Remove string convertion implementations; use `std::parse` instead, and handle errors explicitly.
  - Split attr code to its own module, `flake::url::attr`
  - Introduce `flake::url::qualified_attr` module
- **`eval`**
  - `nix_eval_attr_json`
    - No longer takes `default_if_missing`; instead (always) returns `None` if attribute is missing.
    - Rename to `nix_eval_attr` (as there is no non-JSON variant)
- **`env::NixEnv`**
  - Clarify error message when `$USER` is not set
- **``command`**
  - Add `NixCmd::get()` to return flakes-enabled global command
  - `NixCmd::default()` returns the bare command (no experimental features enabled)
- ``config``
  - Add `NixConfig::get()` to get the once-created static value of `NixConfig`
- `info`
  - Add `NixInfo::get()` to get the once-created static value of `NixInfo`
  - Rename `NixInfo::from_nix()` to `NixInfo::new()`; the latter explicitly takes `NixConfig`

## [0.5.0](https://github.com/juspay/nix-rs/compare/0.4.0...0.5.0) (2024-06-05)

### Features

* Improve `with_flakes` to transform existing `NixCmd`
([f936e54](https://github.com/juspay/nix-rs/commit/f936e5401d1bc9b82084cf7b49402a5ee1a3b733))
* Add support for clap deriving
([f61bd2c](https://github.com/juspay/nix-rs/commit/f61bd2c740a23a10bbb89dfbd3b77fd4b2a49bac))
* Add `NixCmd::extra_access_tokens`
([a287ab2](https://github.com/juspay/nix-rs/commit/a287ab2ad2d21db6ac89e4ce94c55446a02af241))

## [0.4.0](https://github.com/juspay/nix-rs/compare/0.3.3...0.4.0) (2024-06-03)

### Features

* add `NixCmd::run_with_args`
([47f3170](https://github.com/juspay/nix-rs/commit/47f3170d57b72089eb977620217613571c52f456))
* add `FlakeUrl::with_attr`
([1ff343d](https://github.com/juspay/nix-rs/commit/1ff343d25f1a633c3caf2d6f723bbd1c9e352cbc))

### [0.3.3](https://github.com/juspay/nix-rs/compare/0.3.2...0.3.3) (2024-04-17)

#### Features

* **eval:** nix_eval_attr_json explicitly takes NixCmd
([cccdb43](https://github.com/juspay/nix-rs/commit/cccdb437f4f2b31d32778e9cf3de2ab1a61d9331))
* **command:** Add `with_flakes` returning smarter nix CLI with flakes enabled
([f7f217a](https://github.com/juspay/nix-rs/commit/f7f217a12acefc3992b5ff8ba59d861f5cc2abcb))

### 0.3.2 (2024-04-04)