mirror of https://github.com/rust-lang/rustlings
Merge pull request #1026 from jackos/rust-analyzer-fix
Add lsp command to fix rust-analyzerpull/1028/head
commit
294ef8d92c
@ -0,0 +1,90 @@
|
||||
use glob::glob;
|
||||
use serde::{Deserialize, Serialize};
|
||||
use std::error::Error;
|
||||
use std::process::Command;
|
||||
|
||||
/// Contains the structure of resulting rust-project.json file
|
||||
/// and functions to build the data required to create the file
|
||||
#[derive(Serialize, Deserialize)]
|
||||
pub struct RustAnalyzerProject {
|
||||
sysroot_src: String,
|
||||
pub crates: Vec<Crate>,
|
||||
}
|
||||
|
||||
#[derive(Serialize, Deserialize)]
|
||||
pub struct Crate {
|
||||
root_module: String,
|
||||
edition: String,
|
||||
deps: Vec<String>,
|
||||
cfg: Vec<String>,
|
||||
}
|
||||
|
||||
impl RustAnalyzerProject {
|
||||
pub fn new() -> RustAnalyzerProject {
|
||||
RustAnalyzerProject {
|
||||
sysroot_src: String::new(),
|
||||
crates: Vec::new(),
|
||||
}
|
||||
}
|
||||
|
||||
/// Write rust-project.json to disk
|
||||
pub fn write_to_disk(&self) -> Result<(), std::io::Error> {
|
||||
std::fs::write(
|
||||
"./rust-project.json",
|
||||
serde_json::to_vec(&self).expect("Failed to serialize to JSON"),
|
||||
)?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// If path contains .rs extension, add a crate to `rust-project.json`
|
||||
fn path_to_json(&mut self, path: String) {
|
||||
if let Some((_, ext)) = path.split_once('.') {
|
||||
if ext == "rs" {
|
||||
self.crates.push(Crate {
|
||||
root_module: path,
|
||||
edition: "2021".to_string(),
|
||||
deps: Vec::new(),
|
||||
// This allows rust_analyzer to work inside #[test] blocks
|
||||
cfg: vec!["test".to_string()],
|
||||
})
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Parse the exercises folder for .rs files, any matches will create
|
||||
/// a new `crate` in rust-project.json which allows rust-analyzer to
|
||||
/// treat it like a normal binary
|
||||
pub fn exercies_to_json(&mut self) -> Result<(), Box<dyn Error>> {
|
||||
for e in glob("./exercises/**/*")? {
|
||||
let path = e?.to_string_lossy().to_string();
|
||||
self.path_to_json(path);
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Use `rustc` to determine the default toolchain
|
||||
pub fn get_sysroot_src(&mut self) -> Result<(), Box<dyn Error>> {
|
||||
let toolchain = Command::new("rustc")
|
||||
.arg("--print")
|
||||
.arg("sysroot")
|
||||
.output()?
|
||||
.stdout;
|
||||
|
||||
let toolchain = String::from_utf8_lossy(&toolchain);
|
||||
let mut whitespace_iter = toolchain.split_whitespace();
|
||||
|
||||
let toolchain = whitespace_iter.next().unwrap_or(&toolchain);
|
||||
|
||||
println!("Determined toolchain: {}\n", &toolchain);
|
||||
|
||||
self.sysroot_src = (std::path::Path::new(&*toolchain)
|
||||
.join("lib")
|
||||
.join("rustlib")
|
||||
.join("src")
|
||||
.join("rust")
|
||||
.join("library")
|
||||
.to_string_lossy())
|
||||
.to_string();
|
||||
Ok(())
|
||||
}
|
||||
}
|
Loading…
Reference in New Issue