Detect workspace root using language markers (#1370)

* Detect workspace root using language markers

* Avoid allocating root_markers

* Update helix-core/src/lib.rs

Co-authored-by: Blaž Hrastnik <blaz@mxxn.io>

* Update helix-core/src/lib.rs

Co-authored-by: Kirawi <67773714+kirawi@users.noreply.github.com>

Co-authored-by: Blaž Hrastnik <blaz@mxxn.io>
Co-authored-by: Kirawi <67773714+kirawi@users.noreply.github.com>
pull/1414/head
Alexis Mousset 3 years ago committed by GitHub
parent 8fda87af2b
commit 8a019b423f
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

@ -39,8 +39,14 @@ pub fn find_first_non_whitespace_char(line: RopeSlice) -> Option<usize> {
line.chars().position(|ch| !ch.is_whitespace())
}
/// Find `.git` root.
pub fn find_root(root: Option<&str>) -> Option<std::path::PathBuf> {
/// Find project root.
///
/// Order of detection:
/// * Top-most folder containing a root marker in current git repository
/// * Git repostory root if no marker detected
/// * Top-most folder containing a root marker if not git repository detected
/// * Current working directory as fallback
pub fn find_root(root: Option<&str>, root_markers: &[String]) -> Option<std::path::PathBuf> {
let current_dir = std::env::current_dir().expect("unable to determine current directory");
let root = match root {
@ -52,16 +58,30 @@ pub fn find_root(root: Option<&str>) -> Option<std::path::PathBuf> {
current_dir.join(root)
}
}
None => current_dir,
None => current_dir.clone(),
};
let mut top_marker = None;
for ancestor in root.ancestors() {
// TODO: also use defined roots if git isn't found
for marker in root_markers {
if ancestor.join(marker).exists() {
top_marker = Some(ancestor);
break;
}
}
// don't go higher than repo
if ancestor.join(".git").is_dir() {
return Some(ancestor.to_path_buf());
// Use workspace if detected from marker
return Some(top_marker.unwrap_or(ancestor).to_path_buf());
}
}
// In absence of git repo, use workspace if detected
if top_marker.is_some() {
top_marker.map(|a| a.to_path_buf())
} else {
Some(current_dir)
}
None
}
pub fn runtime_dir() -> std::path::PathBuf {

@ -31,6 +31,7 @@ pub struct Client {
pub(crate) capabilities: OnceCell<lsp::ServerCapabilities>,
offset_encoding: OffsetEncoding,
config: Option<Value>,
root_markers: Vec<String>,
}
impl Client {
@ -39,6 +40,7 @@ impl Client {
cmd: &str,
args: &[String],
config: Option<Value>,
root_markers: Vec<String>,
id: usize,
) -> Result<(Self, UnboundedReceiver<(usize, Call)>, Arc<Notify>)> {
let process = Command::new(cmd)
@ -68,6 +70,7 @@ impl Client {
capabilities: OnceCell::new(),
offset_encoding: OffsetEncoding::Utf8,
config,
root_markers,
};
Ok((client, server_rx, initialize_notify))
@ -225,7 +228,8 @@ impl Client {
pub(crate) async fn initialize(&self) -> Result<lsp::InitializeResult> {
// TODO: delay any requests that are triggered prior to initialize
let root = find_root(None).and_then(|root| lsp::Url::from_file_path(root).ok());
let root = find_root(None, &self.root_markers)
.and_then(|root| lsp::Url::from_file_path(root).ok());
if self.config.is_some() {
log::info!("Using custom LSP config: {}", self.config.as_ref().unwrap());

@ -326,6 +326,7 @@ impl Registry {
&config.command,
&config.args,
language_config.config.clone(),
language_config.roots.clone(),
id,
)?;
self.incoming.push(UnboundedReceiverStream::new(incoming));

@ -3154,7 +3154,8 @@ fn command_mode(cx: &mut Context) {
}
fn file_picker(cx: &mut Context) {
let root = find_root(None).unwrap_or_else(|| PathBuf::from("./"));
// We don't specify language markers, root will be the root of the current git repo
let root = find_root(None, &[]).unwrap_or_else(|| PathBuf::from("./"));
let picker = ui::file_picker(root, &cx.editor.config);
cx.push_layer(Box::new(picker));
}

@ -3,7 +3,7 @@ name = "rust"
scope = "source.rust"
injection-regex = "rust"
file-types = ["rs"]
roots = []
roots = ["Cargo.toml", "Cargo.lock"]
auto-format = true
comment-token = "//"
language-server = { command = "rust-analyzer" }

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