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-rw-r--r--crates/ra_cargo_watch/src/conv.rs68
-rw-r--r--crates/ra_cargo_watch/src/lib.rs2
2 files changed, 68 insertions, 2 deletions
diff --git a/crates/ra_cargo_watch/src/conv.rs b/crates/ra_cargo_watch/src/conv.rs
index 3bd4bf7a5..dedb0751e 100644
--- a/crates/ra_cargo_watch/src/conv.rs
+++ b/crates/ra_cargo_watch/src/conv.rs
@@ -8,7 +8,11 @@ use lsp_types::{
8 Diagnostic, DiagnosticRelatedInformation, DiagnosticSeverity, DiagnosticTag, Location, 8 Diagnostic, DiagnosticRelatedInformation, DiagnosticSeverity, DiagnosticTag, Location,
9 NumberOrString, Position, Range, Url, 9 NumberOrString, Position, Range, Url,
10}; 10};
11use std::{fmt::Write, path::PathBuf}; 11use std::{
12 fmt::Write,
13 path::{Component, Path, PathBuf, Prefix},
14 str::FromStr,
15};
12 16
13#[cfg(test)] 17#[cfg(test)]
14mod test; 18mod test;
@@ -57,7 +61,7 @@ fn map_span_to_location(span: &DiagnosticSpan, workspace_root: &PathBuf) -> Loca
57 61
58 let mut file_name = workspace_root.clone(); 62 let mut file_name = workspace_root.clone();
59 file_name.push(&span.file_name); 63 file_name.push(&span.file_name);
60 let uri = Url::from_file_path(file_name).unwrap(); 64 let uri = url_from_path_with_drive_lowercasing(file_name).unwrap();
61 65
62 let range = Range::new( 66 let range = Range::new(
63 Position::new(span.line_start as u64 - 1, span.column_start as u64 - 1), 67 Position::new(span.line_start as u64 - 1, span.column_start as u64 - 1),
@@ -278,3 +282,63 @@ pub(crate) fn map_rust_diagnostic_to_lsp(
278 282
279 Some(MappedRustDiagnostic { location, diagnostic, suggested_fixes }) 283 Some(MappedRustDiagnostic { location, diagnostic, suggested_fixes })
280} 284}
285
286/// Returns a `Url` object from a given path, will lowercase drive letters if present.
287/// This will only happen when processing windows paths.
288///
289/// When processing non-windows path, this is essentially the same as `Url::from_file_path`.
290pub fn url_from_path_with_drive_lowercasing(
291 path: impl AsRef<Path>,
292) -> Result<Url, Box<dyn std::error::Error + Send + Sync>> {
293 let component_has_windows_drive = path.as_ref().components().any(|comp| {
294 if let Component::Prefix(c) = comp {
295 match c.kind() {
296 Prefix::Disk(_) | Prefix::VerbatimDisk(_) => return true,
297 _ => return false,
298 }
299 }
300 false
301 });
302
303 // VSCode expects drive letters to be lowercased, where rust will uppercase the drive letters.
304 if component_has_windows_drive {
305 let url_original = Url::from_file_path(&path)
306 .map_err(|_| format!("can't convert path to url: {}", path.as_ref().display()))?;
307
308 let drive_partition: Vec<&str> = url_original.as_str().rsplitn(2, ':').collect();
309
310 // There is a drive partition, but we never found a colon.
311 // This should not happen, but in this case we just pass it through.
312 if drive_partition.len() == 1 {
313 return Ok(url_original);
314 }
315
316 let joined = drive_partition[1].to_ascii_lowercase() + ":" + drive_partition[0];
317 let url = Url::from_str(&joined).expect("This came from a valid `Url`");
318
319 Ok(url)
320 } else {
321 Ok(Url::from_file_path(&path)
322 .map_err(|_| format!("can't convert path to url: {}", path.as_ref().display()))?)
323 }
324}
325
326// `Url` is not able to parse windows paths on unix machines.
327#[cfg(target_os = "windows")]
328#[cfg(test)]
329mod path_conversion_windows_tests {
330 use super::url_from_path_with_drive_lowercasing;
331 #[test]
332 fn test_lowercase_drive_letter_with_drive() {
333 let url = url_from_path_with_drive_lowercasing("C:\\Test").unwrap();
334
335 assert_eq!(url.to_string(), "file:///c:/Test");
336 }
337
338 #[test]
339 fn test_drive_without_colon_passthrough() {
340 let url = url_from_path_with_drive_lowercasing(r#"\\localhost\C$\my_dir"#).unwrap();
341
342 assert_eq!(url.to_string(), "file://localhost/C$/my_dir");
343 }
344}
diff --git a/crates/ra_cargo_watch/src/lib.rs b/crates/ra_cargo_watch/src/lib.rs
index e5c22e599..9bc0fd405 100644
--- a/crates/ra_cargo_watch/src/lib.rs
+++ b/crates/ra_cargo_watch/src/lib.rs
@@ -21,6 +21,8 @@ mod conv;
21 21
22use crate::conv::{map_rust_diagnostic_to_lsp, MappedRustDiagnostic, SuggestedFix}; 22use crate::conv::{map_rust_diagnostic_to_lsp, MappedRustDiagnostic, SuggestedFix};
23 23
24pub use crate::conv::url_from_path_with_drive_lowercasing;
25
24#[derive(Clone, Debug)] 26#[derive(Clone, Debug)]
25pub struct CheckOptions { 27pub struct CheckOptions {
26 pub enable: bool, 28 pub enable: bool,