rust-analyzer/crates/ide/src/fetch_crates.rs
2023-05-02 10:59:31 -03:00

46 lines
1.4 KiB
Rust

use ide_db::{
base_db::{CrateOrigin, SourceDatabase},
FxIndexSet, RootDatabase,
};
#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct CrateInfo {
pub name: String,
pub version: String,
pub path: String,
}
// Feature: Show Dependency Tree
//
// Shows a view tree with all the dependencies of this project
//
// |===
// image::https://user-images.githubusercontent.com/5748995/229394139-2625beab-f4c9-484b-84ed-ad5dee0b1e1a.png[]
pub(crate) fn fetch_crates(db: &RootDatabase) -> FxIndexSet<CrateInfo> {
let crate_graph = db.crate_graph();
crate_graph
.iter()
.map(|crate_id| &crate_graph[crate_id])
.filter(|&data| !matches!(data.origin, CrateOrigin::Local { .. }))
.filter_map(|data| crate_info(data))
.collect()
}
fn crate_info(data: &ide_db::base_db::CrateData) -> Option<CrateInfo> {
let crate_name = crate_name(data);
let crate_path = data.crate_root_path.as_ref().map(|p| p.display().to_string());
if let Some(crate_path) = crate_path {
let version = data.version.clone().unwrap_or_else(|| "".to_owned());
Some(CrateInfo { name: crate_name, version, path: crate_path })
} else {
None
}
}
fn crate_name(data: &ide_db::base_db::CrateData) -> String {
data.display_name
.clone()
.map(|it| it.canonical_name().to_owned())
.unwrap_or("unknown".to_string())
}