grass/crates/lib/src/lib.rs
Kevin Wenner f7f620e44d
Fix @forward statement altering the scope of the forwarded module (#85)
* avoid mutating forwarded module scope

* fix by adding scope to ForwardedModule instead

- add a test reproducing the issue

* fix verbose and no-color sass cli flags
2023-09-27 22:15:46 -07:00

106 lines
3.2 KiB
Rust

/*!
This crate provides functionality for compiling [Sass](https://sass-lang.com/) to CSS.
This crate targets compatibility with the reference implementation in Dart. If
upgrading from the [now deprecated](https://sass-lang.com/blog/libsass-is-deprecated)
`libsass`, one may have to modify their stylesheets. These changes will not differ
from those necessary to upgrade to `dart-sass`, and in general such changes should
be quite rare.
This crate is capable of compiling Bootstrap 4 and 5, bulma and bulma-scss, Bourbon,
as well as most other large Sass libraries with complete accuracy. For the vast
majority of use cases there should be no perceptible differences from the reference
implementation.
## Use as library
```
fn main() -> Result<(), Box<grass::Error>> {
let css = grass::from_string(
"a { b { color: &; } }".to_owned(),
&grass::Options::default()
)?;
assert_eq!(css, "a b {\n color: a b;\n}\n");
Ok(())
}
```
## Use as binary
```bash
cargo install grass
grass input.scss
```
*/
#![cfg_attr(doc_cfg, feature(doc_cfg))]
#![warn(clippy::all, clippy::cargo, clippy::dbg_macro)]
#![deny(missing_debug_implementations)]
#![allow(
clippy::use_self,
// filter isn't fallible
clippy::manual_filter_map,
renamed_and_removed_lints,
clippy::unknown_clippy_lints,
clippy::single_match,
clippy::new_without_default,
clippy::single_match_else,
clippy::multiple_crate_versions,
clippy::wrong_self_convention,
clippy::comparison_chain,
// these features are only available on nightly
clippy::unnested_or_patterns,
clippy::uninlined_format_args,
// todo: these should be enabled
clippy::cast_sign_loss,
clippy::cast_lossless,
clippy::cast_precision_loss,
clippy::float_cmp,
// todo: unignore once we bump MSRV
clippy::format_push_string,
clippy::unnecessary_unwrap,
clippy::needless_late_init,
unknown_lints,
)]
pub use grass_compiler::{
from_path, from_string, Error, ErrorKind, Fs, InputSyntax, NullFs, Options, OutputStyle,
Result, StdFs,
};
/// Include CSS in your binary at compile time from a Sass source file
///
/// `static CSS: &str = grass::include!("../static/_index.scss");`
///
/// This requires the `"macro"` feature, which is not enabled by default.
///
/// By default `grass` will track files using [`include_str!`]. This allows incremental
/// compilation to be updated when any Sass files are modified.
///
/// If compiling with a nightly version of rust, `grass` can make use of
/// [proc_macro::tracked_path](https://github.com/rust-lang/rust/issues/99515)
/// in order to force incremental recompilation, which is more robust and potentially
/// faster. This is enabled by the `"nightly"` feature.
///
/// ###### Limitations
///
/// Compilation options are not configurable with this macro. The default values
/// for all options are used, except for output style, which is compressed.
#[macro_export]
#[cfg(any(feature = "macro", doc))]
#[cfg_attr(doc_cfg, doc(cfg(feature = "macro")))]
macro_rules! include {
($path:literal) => {
$crate::__internal::include_sass::include_sass!($path);
};
}
#[doc(hidden)]
#[cfg(feature = "macro")]
pub mod __internal {
#[doc(hidden)]
pub use include_sass;
}