1use anyhow::{Context as _, ensure};
2use anyhow::{Result, anyhow};
3use async_trait::async_trait;
4use collections::HashMap;
5use futures::{AsyncBufReadExt, StreamExt as _};
6use gpui::{App, AsyncApp, SharedString, Task};
7use http_client::github::{AssetKind, GitHubLspBinaryVersion, latest_github_release};
8use language::language_settings::language_settings;
9use language::{ContextLocation, LanguageToolchainStore, LspInstaller};
10use language::{ContextProvider, LspAdapter, LspAdapterDelegate};
11use language::{LanguageName, ManifestName, ManifestProvider, ManifestQuery};
12use language::{Toolchain, ToolchainList, ToolchainLister, ToolchainMetadata};
13use lsp::LanguageServerBinary;
14use lsp::LanguageServerName;
15use node_runtime::{NodeRuntime, VersionStrategy};
16use pet_core::Configuration;
17use pet_core::os_environment::Environment;
18use pet_core::python_environment::{PythonEnvironment, PythonEnvironmentKind};
19use pet_virtualenv::is_virtualenv_dir;
20use project::Fs;
21use project::lsp_store::language_server_settings;
22use serde_json::{Value, json};
23use smol::lock::OnceCell;
24use std::cmp::Ordering;
25use std::env::consts;
26use util::fs::{make_file_executable, remove_matching};
27
28use parking_lot::Mutex;
29use std::str::FromStr;
30use std::{
31 borrow::Cow,
32 ffi::OsString,
33 fmt::Write,
34 path::{Path, PathBuf},
35 sync::Arc,
36};
37use task::{ShellKind, TaskTemplate, TaskTemplates, VariableName};
38use util::{ResultExt, maybe};
39
40use crate::github_download::{GithubBinaryMetadata, download_server_binary};
41
42pub(crate) struct PyprojectTomlManifestProvider;
43
44impl ManifestProvider for PyprojectTomlManifestProvider {
45 fn name(&self) -> ManifestName {
46 SharedString::new_static("pyproject.toml").into()
47 }
48
49 fn search(
50 &self,
51 ManifestQuery {
52 path,
53 depth,
54 delegate,
55 }: ManifestQuery,
56 ) -> Option<Arc<Path>> {
57 for path in path.ancestors().take(depth) {
58 let p = path.join("pyproject.toml");
59 if delegate.exists(&p, Some(false)) {
60 return Some(path.into());
61 }
62 }
63
64 None
65 }
66}
67
68const SERVER_PATH: &str = "node_modules/pyright/langserver.index.js";
69const NODE_MODULE_RELATIVE_SERVER_PATH: &str = "pyright/langserver.index.js";
70
71enum TestRunner {
72 UNITTEST,
73 PYTEST,
74}
75
76impl FromStr for TestRunner {
77 type Err = ();
78
79 fn from_str(s: &str) -> std::result::Result<Self, Self::Err> {
80 match s {
81 "unittest" => Ok(Self::UNITTEST),
82 "pytest" => Ok(Self::PYTEST),
83 _ => Err(()),
84 }
85 }
86}
87
88fn server_binary_arguments(server_path: &Path) -> Vec<OsString> {
89 vec![server_path.into(), "--stdio".into()]
90}
91
92/// Pyright assigns each completion item a `sortText` of the form `XX.YYYY.name`.
93/// Where `XX` is the sorting category, `YYYY` is based on most recent usage,
94/// and `name` is the symbol name itself.
95///
96/// The problem with it is that Pyright adjusts the sort text based on previous resolutions (items for which we've issued `completion/resolve` call have their sortText adjusted),
97/// which - long story short - makes completion items list non-stable. Pyright probably relies on VSCode's implementation detail.
98/// see https://github.com/microsoft/pyright/blob/95ef4e103b9b2f129c9320427e51b73ea7cf78bd/packages/pyright-internal/src/languageService/completionProvider.ts#LL2873
99fn process_pyright_completions(items: &mut [lsp::CompletionItem]) {
100 for item in items {
101 item.sort_text.take();
102 }
103}
104
105pub struct TyLspAdapter {
106 fs: Arc<dyn Fs>,
107}
108
109#[cfg(target_os = "macos")]
110impl TyLspAdapter {
111 const GITHUB_ASSET_KIND: AssetKind = AssetKind::Gz;
112 const ARCH_SERVER_NAME: &str = "apple-darwin";
113}
114
115#[cfg(target_os = "linux")]
116impl TyLspAdapter {
117 const GITHUB_ASSET_KIND: AssetKind = AssetKind::Gz;
118 const ARCH_SERVER_NAME: &str = "unknown-linux-gnu";
119}
120
121#[cfg(target_os = "freebsd")]
122impl TyLspAdapter {
123 const GITHUB_ASSET_KIND: AssetKind = AssetKind::Gz;
124 const ARCH_SERVER_NAME: &str = "unknown-freebsd";
125}
126
127#[cfg(target_os = "windows")]
128impl TyLspAdapter {
129 const GITHUB_ASSET_KIND: AssetKind = AssetKind::Zip;
130 const ARCH_SERVER_NAME: &str = "pc-windows-msvc";
131}
132
133impl TyLspAdapter {
134 const SERVER_NAME: LanguageServerName = LanguageServerName::new_static("ty");
135
136 pub fn new(fs: Arc<dyn Fs>) -> TyLspAdapter {
137 TyLspAdapter { fs }
138 }
139
140 fn build_asset_name() -> Result<(String, String)> {
141 let arch = match consts::ARCH {
142 "x86" => "i686",
143 _ => consts::ARCH,
144 };
145 let os = Self::ARCH_SERVER_NAME;
146 let suffix = match consts::OS {
147 "windows" => "zip",
148 _ => "tar.gz",
149 };
150 let asset_name = format!("ty-{arch}-{os}.{suffix}");
151 let asset_stem = format!("ty-{arch}-{os}");
152 Ok((asset_stem, asset_name))
153 }
154}
155
156#[async_trait(?Send)]
157impl LspAdapter for TyLspAdapter {
158 fn name(&self) -> LanguageServerName {
159 Self::SERVER_NAME
160 }
161
162 async fn workspace_configuration(
163 self: Arc<Self>,
164 _: &Arc<dyn LspAdapterDelegate>,
165 toolchain: Option<Toolchain>,
166 _cx: &mut AsyncApp,
167 ) -> Result<Value> {
168 let mut ret = json!({});
169 if let Some(toolchain) = toolchain.and_then(|toolchain| {
170 serde_json::from_value::<PythonEnvironment>(toolchain.as_json).ok()
171 }) {
172 _ = maybe!({
173 let uri = url::Url::from_file_path(toolchain.executable?).ok()?;
174 let sys_prefix = toolchain.prefix.clone()?;
175 let environment = json!({
176 "executable": {
177 "uri": uri,
178 "sysPrefix": sys_prefix
179 }
180 });
181 ret.as_object_mut()?.insert(
182 "pythonExtension".into(),
183 json!({ "activeEnvironment": environment }),
184 );
185 Some(())
186 });
187 }
188 Ok(json!({"ty": ret}))
189 }
190}
191
192impl LspInstaller for TyLspAdapter {
193 type BinaryVersion = GitHubLspBinaryVersion;
194 async fn fetch_latest_server_version(
195 &self,
196 delegate: &dyn LspAdapterDelegate,
197 _: bool,
198 _: &mut AsyncApp,
199 ) -> Result<Self::BinaryVersion> {
200 let release =
201 latest_github_release("astral-sh/ty", true, true, delegate.http_client()).await?;
202 let (_, asset_name) = Self::build_asset_name()?;
203 let asset = release
204 .assets
205 .into_iter()
206 .find(|asset| asset.name == asset_name)
207 .with_context(|| format!("no asset found matching `{asset_name:?}`"))?;
208 Ok(GitHubLspBinaryVersion {
209 name: release.tag_name,
210 url: asset.browser_download_url,
211 digest: asset.digest,
212 })
213 }
214
215 async fn fetch_server_binary(
216 &self,
217 latest_version: Self::BinaryVersion,
218 container_dir: PathBuf,
219 delegate: &dyn LspAdapterDelegate,
220 ) -> Result<LanguageServerBinary> {
221 let GitHubLspBinaryVersion {
222 name,
223 url,
224 digest: expected_digest,
225 } = latest_version;
226 let destination_path = container_dir.join(format!("ty-{name}"));
227 let server_path = match Self::GITHUB_ASSET_KIND {
228 AssetKind::TarGz | AssetKind::Gz => destination_path.clone(), // Tar and gzip extract in place.
229 AssetKind::Zip => destination_path.clone().join("ty.exe"), // zip contains a .exe
230 };
231
232 let binary = LanguageServerBinary {
233 path: server_path.clone(),
234 env: None,
235 arguments: Default::default(),
236 };
237
238 let metadata_path = destination_path.with_extension("metadata");
239 let metadata = GithubBinaryMetadata::read_from_file(&metadata_path)
240 .await
241 .ok();
242 if let Some(metadata) = metadata {
243 let validity_check = async || {
244 delegate
245 .try_exec(LanguageServerBinary {
246 path: server_path.clone(),
247 arguments: vec!["--version".into()],
248 env: None,
249 })
250 .await
251 .inspect_err(|err| {
252 log::warn!("Unable to run {server_path:?} asset, redownloading: {err}",)
253 })
254 };
255 if let (Some(actual_digest), Some(expected_digest)) =
256 (&metadata.digest, &expected_digest)
257 {
258 if actual_digest == expected_digest {
259 if validity_check().await.is_ok() {
260 return Ok(binary);
261 }
262 } else {
263 log::info!(
264 "SHA-256 mismatch for {destination_path:?} asset, downloading new asset. Expected: {expected_digest}, Got: {actual_digest}"
265 );
266 }
267 } else if validity_check().await.is_ok() {
268 return Ok(binary);
269 }
270 }
271
272 download_server_binary(
273 delegate,
274 &url,
275 expected_digest.as_deref(),
276 &destination_path,
277 Self::GITHUB_ASSET_KIND,
278 )
279 .await?;
280 make_file_executable(&server_path).await?;
281 remove_matching(&container_dir, |path| path != destination_path).await;
282 GithubBinaryMetadata::write_to_file(
283 &GithubBinaryMetadata {
284 metadata_version: 1,
285 digest: expected_digest,
286 },
287 &metadata_path,
288 )
289 .await?;
290
291 Ok(LanguageServerBinary {
292 path: server_path,
293 env: None,
294 arguments: Default::default(),
295 })
296 }
297
298 async fn cached_server_binary(
299 &self,
300 container_dir: PathBuf,
301 _: &dyn LspAdapterDelegate,
302 ) -> Option<LanguageServerBinary> {
303 maybe!(async {
304 let mut last = None;
305 let mut entries = self.fs.read_dir(&container_dir).await?;
306 while let Some(entry) = entries.next().await {
307 let path = entry?;
308 if path.extension().is_some_and(|ext| ext == "metadata") {
309 continue;
310 }
311 last = Some(path);
312 }
313
314 let path = last.context("no cached binary")?;
315 let path = match TyLspAdapter::GITHUB_ASSET_KIND {
316 AssetKind::TarGz | AssetKind::Gz => path, // Tar and gzip extract in place.
317 AssetKind::Zip => path.join("ty.exe"), // zip contains a .exe
318 };
319
320 anyhow::Ok(LanguageServerBinary {
321 path,
322 env: None,
323 arguments: Default::default(),
324 })
325 })
326 .await
327 .log_err()
328 }
329}
330
331pub struct PyrightLspAdapter {
332 node: NodeRuntime,
333}
334
335impl PyrightLspAdapter {
336 const SERVER_NAME: LanguageServerName = LanguageServerName::new_static("pyright");
337
338 pub fn new(node: NodeRuntime) -> Self {
339 PyrightLspAdapter { node }
340 }
341}
342
343#[async_trait(?Send)]
344impl LspAdapter for PyrightLspAdapter {
345 fn name(&self) -> LanguageServerName {
346 Self::SERVER_NAME
347 }
348
349 async fn initialization_options(
350 self: Arc<Self>,
351 _: &Arc<dyn LspAdapterDelegate>,
352 ) -> Result<Option<Value>> {
353 // Provide minimal initialization options
354 // Virtual environment configuration will be handled through workspace configuration
355 Ok(Some(json!({
356 "python": {
357 "analysis": {
358 "autoSearchPaths": true,
359 "useLibraryCodeForTypes": true,
360 "autoImportCompletions": true
361 }
362 }
363 })))
364 }
365
366 async fn process_completions(&self, items: &mut [lsp::CompletionItem]) {
367 process_pyright_completions(items);
368 }
369
370 async fn label_for_completion(
371 &self,
372 item: &lsp::CompletionItem,
373 language: &Arc<language::Language>,
374 ) -> Option<language::CodeLabel> {
375 let label = &item.label;
376 let grammar = language.grammar()?;
377 let highlight_id = match item.kind? {
378 lsp::CompletionItemKind::METHOD => grammar.highlight_id_for_name("function.method"),
379 lsp::CompletionItemKind::FUNCTION => grammar.highlight_id_for_name("function"),
380 lsp::CompletionItemKind::CLASS => grammar.highlight_id_for_name("type"),
381 lsp::CompletionItemKind::CONSTANT => grammar.highlight_id_for_name("constant"),
382 lsp::CompletionItemKind::VARIABLE => grammar.highlight_id_for_name("variable"),
383 _ => {
384 return None;
385 }
386 };
387 let filter_range = item
388 .filter_text
389 .as_deref()
390 .and_then(|filter| label.find(filter).map(|ix| ix..ix + filter.len()))
391 .unwrap_or(0..label.len());
392 let mut text = label.clone();
393 if let Some(completion_details) = item
394 .label_details
395 .as_ref()
396 .and_then(|details| details.description.as_ref())
397 {
398 write!(&mut text, " {}", completion_details).ok();
399 }
400 Some(language::CodeLabel {
401 runs: highlight_id
402 .map(|id| (0..label.len(), id))
403 .into_iter()
404 .collect(),
405 text,
406 filter_range,
407 })
408 }
409
410 async fn label_for_symbol(
411 &self,
412 name: &str,
413 kind: lsp::SymbolKind,
414 language: &Arc<language::Language>,
415 ) -> Option<language::CodeLabel> {
416 let (text, filter_range, display_range) = match kind {
417 lsp::SymbolKind::METHOD | lsp::SymbolKind::FUNCTION => {
418 let text = format!("def {}():\n", name);
419 let filter_range = 4..4 + name.len();
420 let display_range = 0..filter_range.end;
421 (text, filter_range, display_range)
422 }
423 lsp::SymbolKind::CLASS => {
424 let text = format!("class {}:", name);
425 let filter_range = 6..6 + name.len();
426 let display_range = 0..filter_range.end;
427 (text, filter_range, display_range)
428 }
429 lsp::SymbolKind::CONSTANT => {
430 let text = format!("{} = 0", name);
431 let filter_range = 0..name.len();
432 let display_range = 0..filter_range.end;
433 (text, filter_range, display_range)
434 }
435 _ => return None,
436 };
437
438 Some(language::CodeLabel {
439 runs: language.highlight_text(&text.as_str().into(), display_range.clone()),
440 text: text[display_range].to_string(),
441 filter_range,
442 })
443 }
444
445 async fn workspace_configuration(
446 self: Arc<Self>,
447
448 adapter: &Arc<dyn LspAdapterDelegate>,
449 toolchain: Option<Toolchain>,
450 cx: &mut AsyncApp,
451 ) -> Result<Value> {
452 cx.update(move |cx| {
453 let mut user_settings =
454 language_server_settings(adapter.as_ref(), &Self::SERVER_NAME, cx)
455 .and_then(|s| s.settings.clone())
456 .unwrap_or_default();
457
458 // If we have a detected toolchain, configure Pyright to use it
459 if let Some(toolchain) = toolchain
460 && let Ok(env) = serde_json::from_value::<
461 pet_core::python_environment::PythonEnvironment,
462 >(toolchain.as_json.clone())
463 {
464 if !user_settings.is_object() {
465 user_settings = Value::Object(serde_json::Map::default());
466 }
467 let object = user_settings.as_object_mut().unwrap();
468
469 let interpreter_path = toolchain.path.to_string();
470 if let Some(venv_dir) = env.prefix {
471 // Set venvPath and venv at the root level
472 // This matches the format of a pyrightconfig.json file
473 if let Some(parent) = venv_dir.parent() {
474 // Use relative path if the venv is inside the workspace
475 let venv_path = if parent == adapter.worktree_root_path() {
476 ".".to_string()
477 } else {
478 parent.to_string_lossy().into_owned()
479 };
480 object.insert("venvPath".to_string(), Value::String(venv_path));
481 }
482
483 if let Some(venv_name) = venv_dir.file_name() {
484 object.insert(
485 "venv".to_owned(),
486 Value::String(venv_name.to_string_lossy().into_owned()),
487 );
488 }
489 }
490
491 // Always set the python interpreter path
492 // Get or create the python section
493 let python = object
494 .entry("python")
495 .and_modify(|v| {
496 if !v.is_object() {
497 *v = Value::Object(serde_json::Map::default());
498 }
499 })
500 .or_insert(Value::Object(serde_json::Map::default()));
501 let python = python.as_object_mut().unwrap();
502
503 // Set both pythonPath and defaultInterpreterPath for compatibility
504 python.insert(
505 "pythonPath".to_owned(),
506 Value::String(interpreter_path.clone()),
507 );
508 python.insert(
509 "defaultInterpreterPath".to_owned(),
510 Value::String(interpreter_path),
511 );
512 }
513
514 user_settings
515 })
516 }
517}
518
519impl LspInstaller for PyrightLspAdapter {
520 type BinaryVersion = String;
521
522 async fn fetch_latest_server_version(
523 &self,
524 _: &dyn LspAdapterDelegate,
525 _: bool,
526 _: &mut AsyncApp,
527 ) -> Result<String> {
528 self.node
529 .npm_package_latest_version(Self::SERVER_NAME.as_ref())
530 .await
531 }
532
533 async fn check_if_user_installed(
534 &self,
535 delegate: &dyn LspAdapterDelegate,
536 _: Option<Toolchain>,
537 _: &AsyncApp,
538 ) -> Option<LanguageServerBinary> {
539 if let Some(pyright_bin) = delegate.which("pyright-langserver".as_ref()).await {
540 let env = delegate.shell_env().await;
541 Some(LanguageServerBinary {
542 path: pyright_bin,
543 env: Some(env),
544 arguments: vec!["--stdio".into()],
545 })
546 } else {
547 let node = delegate.which("node".as_ref()).await?;
548 let (node_modules_path, _) = delegate
549 .npm_package_installed_version(Self::SERVER_NAME.as_ref())
550 .await
551 .log_err()??;
552
553 let path = node_modules_path.join(NODE_MODULE_RELATIVE_SERVER_PATH);
554
555 let env = delegate.shell_env().await;
556 Some(LanguageServerBinary {
557 path: node,
558 env: Some(env),
559 arguments: server_binary_arguments(&path),
560 })
561 }
562 }
563
564 async fn fetch_server_binary(
565 &self,
566 latest_version: Self::BinaryVersion,
567 container_dir: PathBuf,
568 delegate: &dyn LspAdapterDelegate,
569 ) -> Result<LanguageServerBinary> {
570 let server_path = container_dir.join(SERVER_PATH);
571
572 self.node
573 .npm_install_packages(
574 &container_dir,
575 &[(Self::SERVER_NAME.as_ref(), latest_version.as_str())],
576 )
577 .await?;
578
579 let env = delegate.shell_env().await;
580 Ok(LanguageServerBinary {
581 path: self.node.binary_path().await?,
582 env: Some(env),
583 arguments: server_binary_arguments(&server_path),
584 })
585 }
586
587 async fn check_if_version_installed(
588 &self,
589 version: &Self::BinaryVersion,
590 container_dir: &PathBuf,
591 delegate: &dyn LspAdapterDelegate,
592 ) -> Option<LanguageServerBinary> {
593 let server_path = container_dir.join(SERVER_PATH);
594
595 let should_install_language_server = self
596 .node
597 .should_install_npm_package(
598 Self::SERVER_NAME.as_ref(),
599 &server_path,
600 container_dir,
601 VersionStrategy::Latest(version),
602 )
603 .await;
604
605 if should_install_language_server {
606 None
607 } else {
608 let env = delegate.shell_env().await;
609 Some(LanguageServerBinary {
610 path: self.node.binary_path().await.ok()?,
611 env: Some(env),
612 arguments: server_binary_arguments(&server_path),
613 })
614 }
615 }
616
617 async fn cached_server_binary(
618 &self,
619 container_dir: PathBuf,
620 delegate: &dyn LspAdapterDelegate,
621 ) -> Option<LanguageServerBinary> {
622 let mut binary = get_cached_server_binary(container_dir, &self.node).await?;
623 binary.env = Some(delegate.shell_env().await);
624 Some(binary)
625 }
626}
627
628async fn get_cached_server_binary(
629 container_dir: PathBuf,
630 node: &NodeRuntime,
631) -> Option<LanguageServerBinary> {
632 let server_path = container_dir.join(SERVER_PATH);
633 if server_path.exists() {
634 Some(LanguageServerBinary {
635 path: node.binary_path().await.log_err()?,
636 env: None,
637 arguments: server_binary_arguments(&server_path),
638 })
639 } else {
640 log::error!("missing executable in directory {:?}", server_path);
641 None
642 }
643}
644
645pub(crate) struct PythonContextProvider;
646
647const PYTHON_TEST_TARGET_TASK_VARIABLE: VariableName =
648 VariableName::Custom(Cow::Borrowed("PYTHON_TEST_TARGET"));
649
650const PYTHON_ACTIVE_TOOLCHAIN_PATH: VariableName =
651 VariableName::Custom(Cow::Borrowed("PYTHON_ACTIVE_ZED_TOOLCHAIN"));
652
653const PYTHON_MODULE_NAME_TASK_VARIABLE: VariableName =
654 VariableName::Custom(Cow::Borrowed("PYTHON_MODULE_NAME"));
655
656impl ContextProvider for PythonContextProvider {
657 fn build_context(
658 &self,
659 variables: &task::TaskVariables,
660 location: ContextLocation<'_>,
661 _: Option<HashMap<String, String>>,
662 toolchains: Arc<dyn LanguageToolchainStore>,
663 cx: &mut gpui::App,
664 ) -> Task<Result<task::TaskVariables>> {
665 let test_target =
666 match selected_test_runner(location.file_location.buffer.read(cx).file(), cx) {
667 TestRunner::UNITTEST => self.build_unittest_target(variables),
668 TestRunner::PYTEST => self.build_pytest_target(variables),
669 };
670
671 let module_target = self.build_module_target(variables);
672 let location_file = location.file_location.buffer.read(cx).file().cloned();
673 let worktree_id = location_file.as_ref().map(|f| f.worktree_id(cx));
674
675 cx.spawn(async move |cx| {
676 let active_toolchain = if let Some(worktree_id) = worktree_id {
677 let file_path = location_file
678 .as_ref()
679 .and_then(|f| f.path().parent())
680 .map(Arc::from)
681 .unwrap_or_else(|| Arc::from("".as_ref()));
682
683 toolchains
684 .active_toolchain(worktree_id, file_path, "Python".into(), cx)
685 .await
686 .map_or_else(
687 || String::from("python3"),
688 |toolchain| toolchain.path.to_string(),
689 )
690 } else {
691 String::from("python3")
692 };
693
694 let toolchain = (PYTHON_ACTIVE_TOOLCHAIN_PATH, active_toolchain);
695
696 Ok(task::TaskVariables::from_iter(
697 test_target
698 .into_iter()
699 .chain(module_target.into_iter())
700 .chain([toolchain]),
701 ))
702 })
703 }
704
705 fn associated_tasks(
706 &self,
707 file: Option<Arc<dyn language::File>>,
708 cx: &App,
709 ) -> Task<Option<TaskTemplates>> {
710 let test_runner = selected_test_runner(file.as_ref(), cx);
711
712 let mut tasks = vec![
713 // Execute a selection
714 TaskTemplate {
715 label: "execute selection".to_owned(),
716 command: PYTHON_ACTIVE_TOOLCHAIN_PATH.template_value(),
717 args: vec![
718 "-c".to_owned(),
719 VariableName::SelectedText.template_value_with_whitespace(),
720 ],
721 cwd: Some(VariableName::WorktreeRoot.template_value()),
722 ..TaskTemplate::default()
723 },
724 // Execute an entire file
725 TaskTemplate {
726 label: format!("run '{}'", VariableName::File.template_value()),
727 command: PYTHON_ACTIVE_TOOLCHAIN_PATH.template_value(),
728 args: vec![VariableName::File.template_value_with_whitespace()],
729 cwd: Some(VariableName::WorktreeRoot.template_value()),
730 ..TaskTemplate::default()
731 },
732 // Execute a file as module
733 TaskTemplate {
734 label: format!("run module '{}'", VariableName::File.template_value()),
735 command: PYTHON_ACTIVE_TOOLCHAIN_PATH.template_value(),
736 args: vec![
737 "-m".to_owned(),
738 PYTHON_MODULE_NAME_TASK_VARIABLE.template_value(),
739 ],
740 cwd: Some(VariableName::WorktreeRoot.template_value()),
741 tags: vec!["python-module-main-method".to_owned()],
742 ..TaskTemplate::default()
743 },
744 ];
745
746 tasks.extend(match test_runner {
747 TestRunner::UNITTEST => {
748 [
749 // Run tests for an entire file
750 TaskTemplate {
751 label: format!("unittest '{}'", VariableName::File.template_value()),
752 command: PYTHON_ACTIVE_TOOLCHAIN_PATH.template_value(),
753 args: vec![
754 "-m".to_owned(),
755 "unittest".to_owned(),
756 VariableName::File.template_value_with_whitespace(),
757 ],
758 cwd: Some(VariableName::WorktreeRoot.template_value()),
759 ..TaskTemplate::default()
760 },
761 // Run test(s) for a specific target within a file
762 TaskTemplate {
763 label: "unittest $ZED_CUSTOM_PYTHON_TEST_TARGET".to_owned(),
764 command: PYTHON_ACTIVE_TOOLCHAIN_PATH.template_value(),
765 args: vec![
766 "-m".to_owned(),
767 "unittest".to_owned(),
768 PYTHON_TEST_TARGET_TASK_VARIABLE.template_value_with_whitespace(),
769 ],
770 tags: vec![
771 "python-unittest-class".to_owned(),
772 "python-unittest-method".to_owned(),
773 ],
774 cwd: Some(VariableName::WorktreeRoot.template_value()),
775 ..TaskTemplate::default()
776 },
777 ]
778 }
779 TestRunner::PYTEST => {
780 [
781 // Run tests for an entire file
782 TaskTemplate {
783 label: format!("pytest '{}'", VariableName::File.template_value()),
784 command: PYTHON_ACTIVE_TOOLCHAIN_PATH.template_value(),
785 args: vec![
786 "-m".to_owned(),
787 "pytest".to_owned(),
788 VariableName::File.template_value_with_whitespace(),
789 ],
790 cwd: Some(VariableName::WorktreeRoot.template_value()),
791 ..TaskTemplate::default()
792 },
793 // Run test(s) for a specific target within a file
794 TaskTemplate {
795 label: "pytest $ZED_CUSTOM_PYTHON_TEST_TARGET".to_owned(),
796 command: PYTHON_ACTIVE_TOOLCHAIN_PATH.template_value(),
797 args: vec![
798 "-m".to_owned(),
799 "pytest".to_owned(),
800 PYTHON_TEST_TARGET_TASK_VARIABLE.template_value_with_whitespace(),
801 ],
802 cwd: Some(VariableName::WorktreeRoot.template_value()),
803 tags: vec![
804 "python-pytest-class".to_owned(),
805 "python-pytest-method".to_owned(),
806 ],
807 ..TaskTemplate::default()
808 },
809 ]
810 }
811 });
812
813 Task::ready(Some(TaskTemplates(tasks)))
814 }
815}
816
817fn selected_test_runner(location: Option<&Arc<dyn language::File>>, cx: &App) -> TestRunner {
818 const TEST_RUNNER_VARIABLE: &str = "TEST_RUNNER";
819 language_settings(Some(LanguageName::new("Python")), location, cx)
820 .tasks
821 .variables
822 .get(TEST_RUNNER_VARIABLE)
823 .and_then(|val| TestRunner::from_str(val).ok())
824 .unwrap_or(TestRunner::PYTEST)
825}
826
827impl PythonContextProvider {
828 fn build_unittest_target(
829 &self,
830 variables: &task::TaskVariables,
831 ) -> Option<(VariableName, String)> {
832 let python_module_name =
833 python_module_name_from_relative_path(variables.get(&VariableName::RelativeFile)?);
834
835 let unittest_class_name =
836 variables.get(&VariableName::Custom(Cow::Borrowed("_unittest_class_name")));
837
838 let unittest_method_name = variables.get(&VariableName::Custom(Cow::Borrowed(
839 "_unittest_method_name",
840 )));
841
842 let unittest_target_str = match (unittest_class_name, unittest_method_name) {
843 (Some(class_name), Some(method_name)) => {
844 format!("{python_module_name}.{class_name}.{method_name}")
845 }
846 (Some(class_name), None) => format!("{python_module_name}.{class_name}"),
847 (None, None) => python_module_name,
848 // should never happen, a TestCase class is the unit of testing
849 (None, Some(_)) => return None,
850 };
851
852 Some((
853 PYTHON_TEST_TARGET_TASK_VARIABLE.clone(),
854 unittest_target_str,
855 ))
856 }
857
858 fn build_pytest_target(
859 &self,
860 variables: &task::TaskVariables,
861 ) -> Option<(VariableName, String)> {
862 let file_path = variables.get(&VariableName::RelativeFile)?;
863
864 let pytest_class_name =
865 variables.get(&VariableName::Custom(Cow::Borrowed("_pytest_class_name")));
866
867 let pytest_method_name =
868 variables.get(&VariableName::Custom(Cow::Borrowed("_pytest_method_name")));
869
870 let pytest_target_str = match (pytest_class_name, pytest_method_name) {
871 (Some(class_name), Some(method_name)) => {
872 format!("{file_path}::{class_name}::{method_name}")
873 }
874 (Some(class_name), None) => {
875 format!("{file_path}::{class_name}")
876 }
877 (None, Some(method_name)) => {
878 format!("{file_path}::{method_name}")
879 }
880 (None, None) => file_path.to_string(),
881 };
882
883 Some((PYTHON_TEST_TARGET_TASK_VARIABLE.clone(), pytest_target_str))
884 }
885
886 fn build_module_target(
887 &self,
888 variables: &task::TaskVariables,
889 ) -> Result<(VariableName, String)> {
890 let python_module_name = python_module_name_from_relative_path(
891 variables.get(&VariableName::RelativeFile).unwrap_or(""),
892 );
893
894 let module_target = (PYTHON_MODULE_NAME_TASK_VARIABLE.clone(), python_module_name);
895
896 Ok(module_target)
897 }
898}
899
900fn python_module_name_from_relative_path(relative_path: &str) -> String {
901 let path_with_dots = relative_path.replace('/', ".");
902 path_with_dots
903 .strip_suffix(".py")
904 .unwrap_or(&path_with_dots)
905 .to_string()
906}
907
908fn is_python_env_global(k: &PythonEnvironmentKind) -> bool {
909 matches!(
910 k,
911 PythonEnvironmentKind::Homebrew
912 | PythonEnvironmentKind::Pyenv
913 | PythonEnvironmentKind::GlobalPaths
914 | PythonEnvironmentKind::MacPythonOrg
915 | PythonEnvironmentKind::MacCommandLineTools
916 | PythonEnvironmentKind::LinuxGlobal
917 | PythonEnvironmentKind::MacXCode
918 | PythonEnvironmentKind::WindowsStore
919 | PythonEnvironmentKind::WindowsRegistry
920 )
921}
922
923fn python_env_kind_display(k: &PythonEnvironmentKind) -> &'static str {
924 match k {
925 PythonEnvironmentKind::Conda => "Conda",
926 PythonEnvironmentKind::Pixi => "pixi",
927 PythonEnvironmentKind::Homebrew => "Homebrew",
928 PythonEnvironmentKind::Pyenv => "global (Pyenv)",
929 PythonEnvironmentKind::GlobalPaths => "global",
930 PythonEnvironmentKind::PyenvVirtualEnv => "Pyenv",
931 PythonEnvironmentKind::Pipenv => "Pipenv",
932 PythonEnvironmentKind::Poetry => "Poetry",
933 PythonEnvironmentKind::MacPythonOrg => "global (Python.org)",
934 PythonEnvironmentKind::MacCommandLineTools => "global (Command Line Tools for Xcode)",
935 PythonEnvironmentKind::LinuxGlobal => "global",
936 PythonEnvironmentKind::MacXCode => "global (Xcode)",
937 PythonEnvironmentKind::Venv => "venv",
938 PythonEnvironmentKind::VirtualEnv => "virtualenv",
939 PythonEnvironmentKind::VirtualEnvWrapper => "virtualenvwrapper",
940 PythonEnvironmentKind::WindowsStore => "global (Windows Store)",
941 PythonEnvironmentKind::WindowsRegistry => "global (Windows Registry)",
942 }
943}
944
945pub(crate) struct PythonToolchainProvider;
946
947static ENV_PRIORITY_LIST: &[PythonEnvironmentKind] = &[
948 // Prioritize non-Conda environments.
949 PythonEnvironmentKind::Poetry,
950 PythonEnvironmentKind::Pipenv,
951 PythonEnvironmentKind::VirtualEnvWrapper,
952 PythonEnvironmentKind::Venv,
953 PythonEnvironmentKind::VirtualEnv,
954 PythonEnvironmentKind::PyenvVirtualEnv,
955 PythonEnvironmentKind::Pixi,
956 PythonEnvironmentKind::Conda,
957 PythonEnvironmentKind::Pyenv,
958 PythonEnvironmentKind::GlobalPaths,
959 PythonEnvironmentKind::Homebrew,
960];
961
962fn env_priority(kind: Option<PythonEnvironmentKind>) -> usize {
963 if let Some(kind) = kind {
964 ENV_PRIORITY_LIST
965 .iter()
966 .position(|blessed_env| blessed_env == &kind)
967 .unwrap_or(ENV_PRIORITY_LIST.len())
968 } else {
969 // Unknown toolchains are less useful than non-blessed ones.
970 ENV_PRIORITY_LIST.len() + 1
971 }
972}
973
974/// Return the name of environment declared in <worktree-root/.venv.
975///
976/// https://virtualfish.readthedocs.io/en/latest/plugins.html#auto-activation-auto-activation
977async fn get_worktree_venv_declaration(worktree_root: &Path) -> Option<String> {
978 let file = async_fs::File::open(worktree_root.join(".venv"))
979 .await
980 .ok()?;
981 let mut venv_name = String::new();
982 smol::io::BufReader::new(file)
983 .read_line(&mut venv_name)
984 .await
985 .ok()?;
986 Some(venv_name.trim().to_string())
987}
988
989fn get_venv_parent_dir(env: &PythonEnvironment) -> Option<PathBuf> {
990 // If global, we aren't a virtual environment
991 if let Some(kind) = env.kind
992 && is_python_env_global(&kind)
993 {
994 return None;
995 }
996
997 // Check to be sure we are a virtual environment using pet's most generic
998 // virtual environment type, VirtualEnv
999 let venv = env
1000 .executable
1001 .as_ref()
1002 .and_then(|p| p.parent())
1003 .and_then(|p| p.parent())
1004 .filter(|p| is_virtualenv_dir(p))?;
1005
1006 venv.parent().map(|parent| parent.to_path_buf())
1007}
1008
1009#[async_trait]
1010impl ToolchainLister for PythonToolchainProvider {
1011 async fn list(
1012 &self,
1013 worktree_root: PathBuf,
1014 subroot_relative_path: Arc<Path>,
1015 project_env: Option<HashMap<String, String>>,
1016 ) -> ToolchainList {
1017 let env = project_env.unwrap_or_default();
1018 let environment = EnvironmentApi::from_env(&env);
1019 let locators = pet::locators::create_locators(
1020 Arc::new(pet_conda::Conda::from(&environment)),
1021 Arc::new(pet_poetry::Poetry::from(&environment)),
1022 &environment,
1023 );
1024 let mut config = Configuration::default();
1025
1026 debug_assert!(subroot_relative_path.is_relative());
1027 // `.ancestors()` will yield at least one path, so in case of empty `subroot_relative_path`, we'll just use
1028 // worktree root as the workspace directory.
1029 config.workspace_directories = Some(
1030 subroot_relative_path
1031 .ancestors()
1032 .map(|ancestor| worktree_root.join(ancestor))
1033 .collect(),
1034 );
1035 for locator in locators.iter() {
1036 locator.configure(&config);
1037 }
1038
1039 let reporter = pet_reporter::collect::create_reporter();
1040 pet::find::find_and_report_envs(&reporter, config, &locators, &environment, None);
1041
1042 let mut toolchains = reporter
1043 .environments
1044 .lock()
1045 .map_or(Vec::new(), |mut guard| std::mem::take(&mut guard));
1046
1047 let wr = worktree_root;
1048 let wr_venv = get_worktree_venv_declaration(&wr).await;
1049 // Sort detected environments by:
1050 // environment name matching activation file (<workdir>/.venv)
1051 // environment project dir matching worktree_root
1052 // general env priority
1053 // environment path matching the CONDA_PREFIX env var
1054 // executable path
1055 toolchains.sort_by(|lhs, rhs| {
1056 // Compare venv names against worktree .venv file
1057 let venv_ordering =
1058 wr_venv
1059 .as_ref()
1060 .map_or(Ordering::Equal, |venv| match (&lhs.name, &rhs.name) {
1061 (Some(l), Some(r)) => (r == venv).cmp(&(l == venv)),
1062 (Some(l), None) if l == venv => Ordering::Less,
1063 (None, Some(r)) if r == venv => Ordering::Greater,
1064 _ => Ordering::Equal,
1065 });
1066
1067 // Compare project paths against worktree root
1068 let proj_ordering = || {
1069 let lhs_project = lhs.project.clone().or_else(|| get_venv_parent_dir(lhs));
1070 let rhs_project = rhs.project.clone().or_else(|| get_venv_parent_dir(rhs));
1071 match (&lhs_project, &rhs_project) {
1072 (Some(l), Some(r)) => (r == &wr).cmp(&(l == &wr)),
1073 (Some(l), None) if l == &wr => Ordering::Less,
1074 (None, Some(r)) if r == &wr => Ordering::Greater,
1075 _ => Ordering::Equal,
1076 }
1077 };
1078
1079 // Compare environment priorities
1080 let priority_ordering = || env_priority(lhs.kind).cmp(&env_priority(rhs.kind));
1081
1082 // Compare conda prefixes
1083 let conda_ordering = || {
1084 if lhs.kind == Some(PythonEnvironmentKind::Conda) {
1085 environment
1086 .get_env_var("CONDA_PREFIX".to_string())
1087 .map(|conda_prefix| {
1088 let is_match = |exe: &Option<PathBuf>| {
1089 exe.as_ref().is_some_and(|e| e.starts_with(&conda_prefix))
1090 };
1091 match (is_match(&lhs.executable), is_match(&rhs.executable)) {
1092 (true, false) => Ordering::Less,
1093 (false, true) => Ordering::Greater,
1094 _ => Ordering::Equal,
1095 }
1096 })
1097 .unwrap_or(Ordering::Equal)
1098 } else {
1099 Ordering::Equal
1100 }
1101 };
1102
1103 // Compare Python executables
1104 let exe_ordering = || lhs.executable.cmp(&rhs.executable);
1105
1106 venv_ordering
1107 .then_with(proj_ordering)
1108 .then_with(priority_ordering)
1109 .then_with(conda_ordering)
1110 .then_with(exe_ordering)
1111 });
1112
1113 let mut toolchains: Vec<_> = toolchains
1114 .into_iter()
1115 .filter_map(venv_to_toolchain)
1116 .collect();
1117 toolchains.dedup();
1118 ToolchainList {
1119 toolchains,
1120 default: None,
1121 groups: Default::default(),
1122 }
1123 }
1124 fn meta(&self) -> ToolchainMetadata {
1125 ToolchainMetadata {
1126 term: SharedString::new_static("Virtual Environment"),
1127 new_toolchain_placeholder: SharedString::new_static(
1128 "A path to the python3 executable within a virtual environment, or path to virtual environment itself",
1129 ),
1130 manifest_name: ManifestName::from(SharedString::new_static("pyproject.toml")),
1131 }
1132 }
1133
1134 async fn resolve(
1135 &self,
1136 path: PathBuf,
1137 env: Option<HashMap<String, String>>,
1138 ) -> anyhow::Result<Toolchain> {
1139 let env = env.unwrap_or_default();
1140 let environment = EnvironmentApi::from_env(&env);
1141 let locators = pet::locators::create_locators(
1142 Arc::new(pet_conda::Conda::from(&environment)),
1143 Arc::new(pet_poetry::Poetry::from(&environment)),
1144 &environment,
1145 );
1146 let toolchain = pet::resolve::resolve_environment(&path, &locators, &environment)
1147 .context("Could not find a virtual environment in provided path")?;
1148 let venv = toolchain.resolved.unwrap_or(toolchain.discovered);
1149 venv_to_toolchain(venv).context("Could not convert a venv into a toolchain")
1150 }
1151
1152 async fn activation_script(
1153 &self,
1154 toolchain: &Toolchain,
1155 shell: ShellKind,
1156 fs: &dyn Fs,
1157 ) -> Vec<String> {
1158 let Ok(toolchain) = serde_json::from_value::<pet_core::python_environment::PythonEnvironment>(
1159 toolchain.as_json.clone(),
1160 ) else {
1161 return vec![];
1162 };
1163 let mut activation_script = vec![];
1164
1165 match toolchain.kind {
1166 Some(PythonEnvironmentKind::Conda) => {
1167 if let Some(name) = &toolchain.name {
1168 activation_script.push(format!("conda activate {name}"));
1169 } else {
1170 activation_script.push("conda activate".to_string());
1171 }
1172 }
1173 Some(PythonEnvironmentKind::Venv | PythonEnvironmentKind::VirtualEnv) => {
1174 if let Some(prefix) = &toolchain.prefix {
1175 let activate_keyword = match shell {
1176 ShellKind::Cmd => ".",
1177 ShellKind::Nushell => "overlay use",
1178 ShellKind::PowerShell => ".",
1179 ShellKind::Fish => "source",
1180 ShellKind::Csh => "source",
1181 ShellKind::Posix => "source",
1182 };
1183 let activate_script_name = match shell {
1184 ShellKind::Posix => "activate",
1185 ShellKind::Csh => "activate.csh",
1186 ShellKind::Fish => "activate.fish",
1187 ShellKind::Nushell => "activate.nu",
1188 ShellKind::PowerShell => "activate.ps1",
1189 ShellKind::Cmd => "activate.bat",
1190 };
1191 let path = prefix.join(BINARY_DIR).join(activate_script_name);
1192
1193 if let Ok(quoted) =
1194 shlex::try_quote(&path.to_string_lossy()).map(Cow::into_owned)
1195 && fs.is_file(&path).await
1196 {
1197 activation_script.push(format!("{activate_keyword} {quoted}"));
1198 }
1199 }
1200 }
1201 Some(PythonEnvironmentKind::Pyenv) => {
1202 let Some(manager) = toolchain.manager else {
1203 return vec![];
1204 };
1205 let version = toolchain.version.as_deref().unwrap_or("system");
1206 let pyenv = manager.executable;
1207 let pyenv = pyenv.display();
1208 activation_script.extend(match shell {
1209 ShellKind::Fish => Some(format!("\"{pyenv}\" shell - fish {version}")),
1210 ShellKind::Posix => Some(format!("\"{pyenv}\" shell - sh {version}")),
1211 ShellKind::Nushell => Some(format!("\"{pyenv}\" shell - nu {version}")),
1212 ShellKind::PowerShell => None,
1213 ShellKind::Csh => None,
1214 ShellKind::Cmd => None,
1215 })
1216 }
1217 _ => {}
1218 }
1219 activation_script
1220 }
1221}
1222
1223fn venv_to_toolchain(venv: PythonEnvironment) -> Option<Toolchain> {
1224 let mut name = String::from("Python");
1225 if let Some(ref version) = venv.version {
1226 _ = write!(name, " {version}");
1227 }
1228
1229 let name_and_kind = match (&venv.name, &venv.kind) {
1230 (Some(name), Some(kind)) => Some(format!("({name}; {})", python_env_kind_display(kind))),
1231 (Some(name), None) => Some(format!("({name})")),
1232 (None, Some(kind)) => Some(format!("({})", python_env_kind_display(kind))),
1233 (None, None) => None,
1234 };
1235
1236 if let Some(nk) = name_and_kind {
1237 _ = write!(name, " {nk}");
1238 }
1239
1240 Some(Toolchain {
1241 name: name.into(),
1242 path: venv.executable.as_ref()?.to_str()?.to_owned().into(),
1243 language_name: LanguageName::new("Python"),
1244 as_json: serde_json::to_value(venv).ok()?,
1245 })
1246}
1247
1248pub struct EnvironmentApi<'a> {
1249 global_search_locations: Arc<Mutex<Vec<PathBuf>>>,
1250 project_env: &'a HashMap<String, String>,
1251 pet_env: pet_core::os_environment::EnvironmentApi,
1252}
1253
1254impl<'a> EnvironmentApi<'a> {
1255 pub fn from_env(project_env: &'a HashMap<String, String>) -> Self {
1256 let paths = project_env
1257 .get("PATH")
1258 .map(|p| std::env::split_paths(p).collect())
1259 .unwrap_or_default();
1260
1261 EnvironmentApi {
1262 global_search_locations: Arc::new(Mutex::new(paths)),
1263 project_env,
1264 pet_env: pet_core::os_environment::EnvironmentApi::new(),
1265 }
1266 }
1267
1268 fn user_home(&self) -> Option<PathBuf> {
1269 self.project_env
1270 .get("HOME")
1271 .or_else(|| self.project_env.get("USERPROFILE"))
1272 .map(|home| pet_fs::path::norm_case(PathBuf::from(home)))
1273 .or_else(|| self.pet_env.get_user_home())
1274 }
1275}
1276
1277impl pet_core::os_environment::Environment for EnvironmentApi<'_> {
1278 fn get_user_home(&self) -> Option<PathBuf> {
1279 self.user_home()
1280 }
1281
1282 fn get_root(&self) -> Option<PathBuf> {
1283 None
1284 }
1285
1286 fn get_env_var(&self, key: String) -> Option<String> {
1287 self.project_env
1288 .get(&key)
1289 .cloned()
1290 .or_else(|| self.pet_env.get_env_var(key))
1291 }
1292
1293 fn get_know_global_search_locations(&self) -> Vec<PathBuf> {
1294 if self.global_search_locations.lock().is_empty() {
1295 let mut paths =
1296 std::env::split_paths(&self.get_env_var("PATH".to_string()).unwrap_or_default())
1297 .collect::<Vec<PathBuf>>();
1298
1299 log::trace!("Env PATH: {:?}", paths);
1300 for p in self.pet_env.get_know_global_search_locations() {
1301 if !paths.contains(&p) {
1302 paths.push(p);
1303 }
1304 }
1305
1306 let mut paths = paths
1307 .into_iter()
1308 .filter(|p| p.exists())
1309 .collect::<Vec<PathBuf>>();
1310
1311 self.global_search_locations.lock().append(&mut paths);
1312 }
1313 self.global_search_locations.lock().clone()
1314 }
1315}
1316
1317pub(crate) struct PyLspAdapter {
1318 python_venv_base: OnceCell<Result<Arc<Path>, String>>,
1319}
1320impl PyLspAdapter {
1321 const SERVER_NAME: LanguageServerName = LanguageServerName::new_static("pylsp");
1322 pub(crate) fn new() -> Self {
1323 Self {
1324 python_venv_base: OnceCell::new(),
1325 }
1326 }
1327 async fn ensure_venv(delegate: &dyn LspAdapterDelegate) -> Result<Arc<Path>> {
1328 let python_path = Self::find_base_python(delegate)
1329 .await
1330 .context("Could not find Python installation for PyLSP")?;
1331 let work_dir = delegate
1332 .language_server_download_dir(&Self::SERVER_NAME)
1333 .await
1334 .context("Could not get working directory for PyLSP")?;
1335 let mut path = PathBuf::from(work_dir.as_ref());
1336 path.push("pylsp-venv");
1337 if !path.exists() {
1338 util::command::new_smol_command(python_path)
1339 .arg("-m")
1340 .arg("venv")
1341 .arg("pylsp-venv")
1342 .current_dir(work_dir)
1343 .spawn()?
1344 .output()
1345 .await?;
1346 }
1347
1348 Ok(path.into())
1349 }
1350 // Find "baseline", user python version from which we'll create our own venv.
1351 async fn find_base_python(delegate: &dyn LspAdapterDelegate) -> Option<PathBuf> {
1352 for path in ["python3", "python"] {
1353 if let Some(path) = delegate.which(path.as_ref()).await {
1354 return Some(path);
1355 }
1356 }
1357 None
1358 }
1359
1360 async fn base_venv(&self, delegate: &dyn LspAdapterDelegate) -> Result<Arc<Path>, String> {
1361 self.python_venv_base
1362 .get_or_init(move || async move {
1363 Self::ensure_venv(delegate)
1364 .await
1365 .map_err(|e| format!("{e}"))
1366 })
1367 .await
1368 .clone()
1369 }
1370}
1371
1372const BINARY_DIR: &str = if cfg!(target_os = "windows") {
1373 "Scripts"
1374} else {
1375 "bin"
1376};
1377
1378#[async_trait(?Send)]
1379impl LspAdapter for PyLspAdapter {
1380 fn name(&self) -> LanguageServerName {
1381 Self::SERVER_NAME
1382 }
1383
1384 async fn process_completions(&self, _items: &mut [lsp::CompletionItem]) {}
1385
1386 async fn label_for_completion(
1387 &self,
1388 item: &lsp::CompletionItem,
1389 language: &Arc<language::Language>,
1390 ) -> Option<language::CodeLabel> {
1391 let label = &item.label;
1392 let grammar = language.grammar()?;
1393 let highlight_id = match item.kind? {
1394 lsp::CompletionItemKind::METHOD => grammar.highlight_id_for_name("function.method")?,
1395 lsp::CompletionItemKind::FUNCTION => grammar.highlight_id_for_name("function")?,
1396 lsp::CompletionItemKind::CLASS => grammar.highlight_id_for_name("type")?,
1397 lsp::CompletionItemKind::CONSTANT => grammar.highlight_id_for_name("constant")?,
1398 _ => return None,
1399 };
1400 let filter_range = item
1401 .filter_text
1402 .as_deref()
1403 .and_then(|filter| label.find(filter).map(|ix| ix..ix + filter.len()))
1404 .unwrap_or(0..label.len());
1405 Some(language::CodeLabel {
1406 text: label.clone(),
1407 runs: vec![(0..label.len(), highlight_id)],
1408 filter_range,
1409 })
1410 }
1411
1412 async fn label_for_symbol(
1413 &self,
1414 name: &str,
1415 kind: lsp::SymbolKind,
1416 language: &Arc<language::Language>,
1417 ) -> Option<language::CodeLabel> {
1418 let (text, filter_range, display_range) = match kind {
1419 lsp::SymbolKind::METHOD | lsp::SymbolKind::FUNCTION => {
1420 let text = format!("def {}():\n", name);
1421 let filter_range = 4..4 + name.len();
1422 let display_range = 0..filter_range.end;
1423 (text, filter_range, display_range)
1424 }
1425 lsp::SymbolKind::CLASS => {
1426 let text = format!("class {}:", name);
1427 let filter_range = 6..6 + name.len();
1428 let display_range = 0..filter_range.end;
1429 (text, filter_range, display_range)
1430 }
1431 lsp::SymbolKind::CONSTANT => {
1432 let text = format!("{} = 0", name);
1433 let filter_range = 0..name.len();
1434 let display_range = 0..filter_range.end;
1435 (text, filter_range, display_range)
1436 }
1437 _ => return None,
1438 };
1439
1440 Some(language::CodeLabel {
1441 runs: language.highlight_text(&text.as_str().into(), display_range.clone()),
1442 text: text[display_range].to_string(),
1443 filter_range,
1444 })
1445 }
1446
1447 async fn workspace_configuration(
1448 self: Arc<Self>,
1449 adapter: &Arc<dyn LspAdapterDelegate>,
1450 toolchain: Option<Toolchain>,
1451 cx: &mut AsyncApp,
1452 ) -> Result<Value> {
1453 cx.update(move |cx| {
1454 let mut user_settings =
1455 language_server_settings(adapter.as_ref(), &Self::SERVER_NAME, cx)
1456 .and_then(|s| s.settings.clone())
1457 .unwrap_or_else(|| {
1458 json!({
1459 "plugins": {
1460 "pycodestyle": {"enabled": false},
1461 "rope_autoimport": {"enabled": true, "memory": true},
1462 "pylsp_mypy": {"enabled": false}
1463 },
1464 "rope": {
1465 "ropeFolder": null
1466 },
1467 })
1468 });
1469
1470 // If user did not explicitly modify their python venv, use one from picker.
1471 if let Some(toolchain) = toolchain {
1472 if !user_settings.is_object() {
1473 user_settings = Value::Object(serde_json::Map::default());
1474 }
1475 let object = user_settings.as_object_mut().unwrap();
1476 if let Some(python) = object
1477 .entry("plugins")
1478 .or_insert(Value::Object(serde_json::Map::default()))
1479 .as_object_mut()
1480 {
1481 if let Some(jedi) = python
1482 .entry("jedi")
1483 .or_insert(Value::Object(serde_json::Map::default()))
1484 .as_object_mut()
1485 {
1486 jedi.entry("environment".to_string())
1487 .or_insert_with(|| Value::String(toolchain.path.clone().into()));
1488 }
1489 if let Some(pylint) = python
1490 .entry("pylsp_mypy")
1491 .or_insert(Value::Object(serde_json::Map::default()))
1492 .as_object_mut()
1493 {
1494 pylint.entry("overrides".to_string()).or_insert_with(|| {
1495 Value::Array(vec![
1496 Value::String("--python-executable".into()),
1497 Value::String(toolchain.path.into()),
1498 Value::String("--cache-dir=/dev/null".into()),
1499 Value::Bool(true),
1500 ])
1501 });
1502 }
1503 }
1504 }
1505 user_settings = Value::Object(serde_json::Map::from_iter([(
1506 "pylsp".to_string(),
1507 user_settings,
1508 )]));
1509
1510 user_settings
1511 })
1512 }
1513}
1514
1515impl LspInstaller for PyLspAdapter {
1516 type BinaryVersion = ();
1517 async fn check_if_user_installed(
1518 &self,
1519 delegate: &dyn LspAdapterDelegate,
1520 toolchain: Option<Toolchain>,
1521 _: &AsyncApp,
1522 ) -> Option<LanguageServerBinary> {
1523 if let Some(pylsp_bin) = delegate.which(Self::SERVER_NAME.as_ref()).await {
1524 let env = delegate.shell_env().await;
1525 Some(LanguageServerBinary {
1526 path: pylsp_bin,
1527 env: Some(env),
1528 arguments: vec![],
1529 })
1530 } else {
1531 let toolchain = toolchain?;
1532 let pylsp_path = Path::new(toolchain.path.as_ref()).parent()?.join("pylsp");
1533 pylsp_path.exists().then(|| LanguageServerBinary {
1534 path: toolchain.path.to_string().into(),
1535 arguments: vec![pylsp_path.into()],
1536 env: None,
1537 })
1538 }
1539 }
1540
1541 async fn fetch_latest_server_version(
1542 &self,
1543 _: &dyn LspAdapterDelegate,
1544 _: bool,
1545 _: &mut AsyncApp,
1546 ) -> Result<()> {
1547 Ok(())
1548 }
1549
1550 async fn fetch_server_binary(
1551 &self,
1552 _: (),
1553 _: PathBuf,
1554 delegate: &dyn LspAdapterDelegate,
1555 ) -> Result<LanguageServerBinary> {
1556 let venv = self.base_venv(delegate).await.map_err(|e| anyhow!(e))?;
1557 let pip_path = venv.join(BINARY_DIR).join("pip3");
1558 ensure!(
1559 util::command::new_smol_command(pip_path.as_path())
1560 .arg("install")
1561 .arg("python-lsp-server")
1562 .arg("-U")
1563 .output()
1564 .await?
1565 .status
1566 .success(),
1567 "python-lsp-server installation failed"
1568 );
1569 ensure!(
1570 util::command::new_smol_command(pip_path.as_path())
1571 .arg("install")
1572 .arg("python-lsp-server[all]")
1573 .arg("-U")
1574 .output()
1575 .await?
1576 .status
1577 .success(),
1578 "python-lsp-server[all] installation failed"
1579 );
1580 ensure!(
1581 util::command::new_smol_command(pip_path)
1582 .arg("install")
1583 .arg("pylsp-mypy")
1584 .arg("-U")
1585 .output()
1586 .await?
1587 .status
1588 .success(),
1589 "pylsp-mypy installation failed"
1590 );
1591 let pylsp = venv.join(BINARY_DIR).join("pylsp");
1592 Ok(LanguageServerBinary {
1593 path: pylsp,
1594 env: None,
1595 arguments: vec![],
1596 })
1597 }
1598
1599 async fn cached_server_binary(
1600 &self,
1601 _: PathBuf,
1602 delegate: &dyn LspAdapterDelegate,
1603 ) -> Option<LanguageServerBinary> {
1604 let venv = self.base_venv(delegate).await.ok()?;
1605 let pylsp = venv.join(BINARY_DIR).join("pylsp");
1606 Some(LanguageServerBinary {
1607 path: pylsp,
1608 env: None,
1609 arguments: vec![],
1610 })
1611 }
1612}
1613
1614pub(crate) struct BasedPyrightLspAdapter {
1615 python_venv_base: OnceCell<Result<Arc<Path>, String>>,
1616}
1617
1618impl BasedPyrightLspAdapter {
1619 const SERVER_NAME: LanguageServerName = LanguageServerName::new_static("basedpyright");
1620 const BINARY_NAME: &'static str = "basedpyright-langserver";
1621
1622 pub(crate) fn new() -> Self {
1623 Self {
1624 python_venv_base: OnceCell::new(),
1625 }
1626 }
1627
1628 async fn ensure_venv(delegate: &dyn LspAdapterDelegate) -> Result<Arc<Path>> {
1629 let python_path = Self::find_base_python(delegate)
1630 .await
1631 .context("Could not find Python installation for basedpyright")?;
1632 let work_dir = delegate
1633 .language_server_download_dir(&Self::SERVER_NAME)
1634 .await
1635 .context("Could not get working directory for basedpyright")?;
1636 let mut path = PathBuf::from(work_dir.as_ref());
1637 path.push("basedpyright-venv");
1638 if !path.exists() {
1639 util::command::new_smol_command(python_path)
1640 .arg("-m")
1641 .arg("venv")
1642 .arg("basedpyright-venv")
1643 .current_dir(work_dir)
1644 .spawn()?
1645 .output()
1646 .await?;
1647 }
1648
1649 Ok(path.into())
1650 }
1651
1652 // Find "baseline", user python version from which we'll create our own venv.
1653 async fn find_base_python(delegate: &dyn LspAdapterDelegate) -> Option<PathBuf> {
1654 for path in ["python3", "python"] {
1655 if let Some(path) = delegate.which(path.as_ref()).await {
1656 return Some(path);
1657 }
1658 }
1659 None
1660 }
1661
1662 async fn base_venv(&self, delegate: &dyn LspAdapterDelegate) -> Result<Arc<Path>, String> {
1663 self.python_venv_base
1664 .get_or_init(move || async move {
1665 Self::ensure_venv(delegate)
1666 .await
1667 .map_err(|e| format!("{e}"))
1668 })
1669 .await
1670 .clone()
1671 }
1672}
1673
1674#[async_trait(?Send)]
1675impl LspAdapter for BasedPyrightLspAdapter {
1676 fn name(&self) -> LanguageServerName {
1677 Self::SERVER_NAME
1678 }
1679
1680 async fn initialization_options(
1681 self: Arc<Self>,
1682 _: &Arc<dyn LspAdapterDelegate>,
1683 ) -> Result<Option<Value>> {
1684 // Provide minimal initialization options
1685 // Virtual environment configuration will be handled through workspace configuration
1686 Ok(Some(json!({
1687 "python": {
1688 "analysis": {
1689 "autoSearchPaths": true,
1690 "useLibraryCodeForTypes": true,
1691 "autoImportCompletions": true
1692 }
1693 }
1694 })))
1695 }
1696
1697 async fn process_completions(&self, items: &mut [lsp::CompletionItem]) {
1698 process_pyright_completions(items);
1699 }
1700
1701 async fn label_for_completion(
1702 &self,
1703 item: &lsp::CompletionItem,
1704 language: &Arc<language::Language>,
1705 ) -> Option<language::CodeLabel> {
1706 let label = &item.label;
1707 let grammar = language.grammar()?;
1708 let highlight_id = match item.kind? {
1709 lsp::CompletionItemKind::METHOD => grammar.highlight_id_for_name("function.method"),
1710 lsp::CompletionItemKind::FUNCTION => grammar.highlight_id_for_name("function"),
1711 lsp::CompletionItemKind::CLASS => grammar.highlight_id_for_name("type"),
1712 lsp::CompletionItemKind::CONSTANT => grammar.highlight_id_for_name("constant"),
1713 lsp::CompletionItemKind::VARIABLE => grammar.highlight_id_for_name("variable"),
1714 _ => {
1715 return None;
1716 }
1717 };
1718 let filter_range = item
1719 .filter_text
1720 .as_deref()
1721 .and_then(|filter| label.find(filter).map(|ix| ix..ix + filter.len()))
1722 .unwrap_or(0..label.len());
1723 let mut text = label.clone();
1724 if let Some(completion_details) = item
1725 .label_details
1726 .as_ref()
1727 .and_then(|details| details.description.as_ref())
1728 {
1729 write!(&mut text, " {}", completion_details).ok();
1730 }
1731 Some(language::CodeLabel {
1732 runs: highlight_id
1733 .map(|id| (0..label.len(), id))
1734 .into_iter()
1735 .collect(),
1736 text,
1737 filter_range,
1738 })
1739 }
1740
1741 async fn label_for_symbol(
1742 &self,
1743 name: &str,
1744 kind: lsp::SymbolKind,
1745 language: &Arc<language::Language>,
1746 ) -> Option<language::CodeLabel> {
1747 let (text, filter_range, display_range) = match kind {
1748 lsp::SymbolKind::METHOD | lsp::SymbolKind::FUNCTION => {
1749 let text = format!("def {}():\n", name);
1750 let filter_range = 4..4 + name.len();
1751 let display_range = 0..filter_range.end;
1752 (text, filter_range, display_range)
1753 }
1754 lsp::SymbolKind::CLASS => {
1755 let text = format!("class {}:", name);
1756 let filter_range = 6..6 + name.len();
1757 let display_range = 0..filter_range.end;
1758 (text, filter_range, display_range)
1759 }
1760 lsp::SymbolKind::CONSTANT => {
1761 let text = format!("{} = 0", name);
1762 let filter_range = 0..name.len();
1763 let display_range = 0..filter_range.end;
1764 (text, filter_range, display_range)
1765 }
1766 _ => return None,
1767 };
1768
1769 Some(language::CodeLabel {
1770 runs: language.highlight_text(&text.as_str().into(), display_range.clone()),
1771 text: text[display_range].to_string(),
1772 filter_range,
1773 })
1774 }
1775
1776 async fn workspace_configuration(
1777 self: Arc<Self>,
1778 adapter: &Arc<dyn LspAdapterDelegate>,
1779 toolchain: Option<Toolchain>,
1780 cx: &mut AsyncApp,
1781 ) -> Result<Value> {
1782 cx.update(move |cx| {
1783 let mut user_settings =
1784 language_server_settings(adapter.as_ref(), &Self::SERVER_NAME, cx)
1785 .and_then(|s| s.settings.clone())
1786 .unwrap_or_default();
1787
1788 // If we have a detected toolchain, configure Pyright to use it
1789 if let Some(toolchain) = toolchain
1790 && let Ok(env) = serde_json::from_value::<
1791 pet_core::python_environment::PythonEnvironment,
1792 >(toolchain.as_json.clone())
1793 {
1794 if !user_settings.is_object() {
1795 user_settings = Value::Object(serde_json::Map::default());
1796 }
1797 let object = user_settings.as_object_mut().unwrap();
1798
1799 let interpreter_path = toolchain.path.to_string();
1800 if let Some(venv_dir) = env.prefix {
1801 // Set venvPath and venv at the root level
1802 // This matches the format of a pyrightconfig.json file
1803 if let Some(parent) = venv_dir.parent() {
1804 // Use relative path if the venv is inside the workspace
1805 let venv_path = if parent == adapter.worktree_root_path() {
1806 ".".to_string()
1807 } else {
1808 parent.to_string_lossy().into_owned()
1809 };
1810 object.insert("venvPath".to_string(), Value::String(venv_path));
1811 }
1812
1813 if let Some(venv_name) = venv_dir.file_name() {
1814 object.insert(
1815 "venv".to_owned(),
1816 Value::String(venv_name.to_string_lossy().into_owned()),
1817 );
1818 }
1819 }
1820
1821 // Set both pythonPath and defaultInterpreterPath for compatibility
1822 if let Some(python) = object
1823 .entry("python")
1824 .or_insert(Value::Object(serde_json::Map::default()))
1825 .as_object_mut()
1826 {
1827 python.insert(
1828 "pythonPath".to_owned(),
1829 Value::String(interpreter_path.clone()),
1830 );
1831 python.insert(
1832 "defaultInterpreterPath".to_owned(),
1833 Value::String(interpreter_path),
1834 );
1835 }
1836 // Basedpyright by default uses `strict` type checking, we tone it down as to not surpris users
1837 maybe!({
1838 let basedpyright = object
1839 .entry("basedpyright")
1840 .or_insert(Value::Object(serde_json::Map::default()));
1841 let analysis = basedpyright
1842 .as_object_mut()?
1843 .entry("analysis")
1844 .or_insert(Value::Object(serde_json::Map::default()));
1845 if let serde_json::map::Entry::Vacant(v) =
1846 analysis.as_object_mut()?.entry("typeCheckingMode")
1847 {
1848 v.insert(Value::String("standard".to_owned()));
1849 }
1850 Some(())
1851 });
1852 }
1853
1854 user_settings
1855 })
1856 }
1857}
1858
1859impl LspInstaller for BasedPyrightLspAdapter {
1860 type BinaryVersion = ();
1861
1862 async fn fetch_latest_server_version(
1863 &self,
1864 _: &dyn LspAdapterDelegate,
1865 _: bool,
1866 _: &mut AsyncApp,
1867 ) -> Result<()> {
1868 Ok(())
1869 }
1870
1871 async fn check_if_user_installed(
1872 &self,
1873 delegate: &dyn LspAdapterDelegate,
1874 toolchain: Option<Toolchain>,
1875 _: &AsyncApp,
1876 ) -> Option<LanguageServerBinary> {
1877 if let Some(bin) = delegate.which(Self::BINARY_NAME.as_ref()).await {
1878 let env = delegate.shell_env().await;
1879 Some(LanguageServerBinary {
1880 path: bin,
1881 env: Some(env),
1882 arguments: vec!["--stdio".into()],
1883 })
1884 } else {
1885 let path = Path::new(toolchain?.path.as_ref())
1886 .parent()?
1887 .join(Self::BINARY_NAME);
1888 path.exists().then(|| LanguageServerBinary {
1889 path,
1890 arguments: vec!["--stdio".into()],
1891 env: None,
1892 })
1893 }
1894 }
1895
1896 async fn fetch_server_binary(
1897 &self,
1898 _latest_version: (),
1899 _container_dir: PathBuf,
1900 delegate: &dyn LspAdapterDelegate,
1901 ) -> Result<LanguageServerBinary> {
1902 let venv = self.base_venv(delegate).await.map_err(|e| anyhow!(e))?;
1903 let pip_path = venv.join(BINARY_DIR).join("pip3");
1904 ensure!(
1905 util::command::new_smol_command(pip_path.as_path())
1906 .arg("install")
1907 .arg("basedpyright")
1908 .arg("-U")
1909 .output()
1910 .await?
1911 .status
1912 .success(),
1913 "basedpyright installation failed"
1914 );
1915 let pylsp = venv.join(BINARY_DIR).join(Self::BINARY_NAME);
1916 Ok(LanguageServerBinary {
1917 path: pylsp,
1918 env: None,
1919 arguments: vec!["--stdio".into()],
1920 })
1921 }
1922
1923 async fn cached_server_binary(
1924 &self,
1925 _container_dir: PathBuf,
1926 delegate: &dyn LspAdapterDelegate,
1927 ) -> Option<LanguageServerBinary> {
1928 let venv = self.base_venv(delegate).await.ok()?;
1929 let pylsp = venv.join(BINARY_DIR).join(Self::BINARY_NAME);
1930 Some(LanguageServerBinary {
1931 path: pylsp,
1932 env: None,
1933 arguments: vec!["--stdio".into()],
1934 })
1935 }
1936}
1937
1938pub(crate) struct RuffLspAdapter {
1939 fs: Arc<dyn Fs>,
1940}
1941
1942#[cfg(target_os = "macos")]
1943impl RuffLspAdapter {
1944 const GITHUB_ASSET_KIND: AssetKind = AssetKind::TarGz;
1945 const ARCH_SERVER_NAME: &str = "apple-darwin";
1946}
1947
1948#[cfg(target_os = "linux")]
1949impl RuffLspAdapter {
1950 const GITHUB_ASSET_KIND: AssetKind = AssetKind::TarGz;
1951 const ARCH_SERVER_NAME: &str = "unknown-linux-gnu";
1952}
1953
1954#[cfg(target_os = "freebsd")]
1955impl RuffLspAdapter {
1956 const GITHUB_ASSET_KIND: AssetKind = AssetKind::TarGz;
1957 const ARCH_SERVER_NAME: &str = "unknown-freebsd";
1958}
1959
1960#[cfg(target_os = "windows")]
1961impl RuffLspAdapter {
1962 const GITHUB_ASSET_KIND: AssetKind = AssetKind::Zip;
1963 const ARCH_SERVER_NAME: &str = "pc-windows-msvc";
1964}
1965
1966impl RuffLspAdapter {
1967 const SERVER_NAME: LanguageServerName = LanguageServerName::new_static("ruff");
1968
1969 pub fn new(fs: Arc<dyn Fs>) -> RuffLspAdapter {
1970 RuffLspAdapter { fs }
1971 }
1972
1973 fn build_asset_name() -> Result<(String, String)> {
1974 let arch = match consts::ARCH {
1975 "x86" => "i686",
1976 _ => consts::ARCH,
1977 };
1978 let os = Self::ARCH_SERVER_NAME;
1979 let suffix = match consts::OS {
1980 "windows" => "zip",
1981 _ => "tar.gz",
1982 };
1983 let asset_name = format!("ruff-{arch}-{os}.{suffix}");
1984 let asset_stem = format!("ruff-{arch}-{os}");
1985 Ok((asset_stem, asset_name))
1986 }
1987}
1988
1989#[async_trait(?Send)]
1990impl LspAdapter for RuffLspAdapter {
1991 fn name(&self) -> LanguageServerName {
1992 Self::SERVER_NAME
1993 }
1994}
1995
1996impl LspInstaller for RuffLspAdapter {
1997 type BinaryVersion = GitHubLspBinaryVersion;
1998 async fn check_if_user_installed(
1999 &self,
2000 delegate: &dyn LspAdapterDelegate,
2001 toolchain: Option<Toolchain>,
2002 _: &AsyncApp,
2003 ) -> Option<LanguageServerBinary> {
2004 let ruff_in_venv = if let Some(toolchain) = toolchain
2005 && toolchain.language_name.as_ref() == "Python"
2006 {
2007 Path::new(toolchain.path.as_str())
2008 .parent()
2009 .map(|path| path.join("ruff"))
2010 } else {
2011 None
2012 };
2013
2014 for path in ruff_in_venv.into_iter().chain(["ruff".into()]) {
2015 if let Some(ruff_bin) = delegate.which(path.as_os_str()).await {
2016 let env = delegate.shell_env().await;
2017 return Some(LanguageServerBinary {
2018 path: ruff_bin,
2019 env: Some(env),
2020 arguments: vec!["server".into()],
2021 });
2022 }
2023 }
2024
2025 None
2026 }
2027
2028 async fn fetch_latest_server_version(
2029 &self,
2030 delegate: &dyn LspAdapterDelegate,
2031 _: bool,
2032 _: &mut AsyncApp,
2033 ) -> Result<GitHubLspBinaryVersion> {
2034 let release =
2035 latest_github_release("astral-sh/ruff", true, false, delegate.http_client()).await?;
2036 let (_, asset_name) = Self::build_asset_name()?;
2037 let asset = release
2038 .assets
2039 .into_iter()
2040 .find(|asset| asset.name == asset_name)
2041 .with_context(|| format!("no asset found matching `{asset_name:?}`"))?;
2042 Ok(GitHubLspBinaryVersion {
2043 name: release.tag_name,
2044 url: asset.browser_download_url,
2045 digest: asset.digest,
2046 })
2047 }
2048
2049 async fn fetch_server_binary(
2050 &self,
2051 latest_version: GitHubLspBinaryVersion,
2052 container_dir: PathBuf,
2053 delegate: &dyn LspAdapterDelegate,
2054 ) -> Result<LanguageServerBinary> {
2055 let GitHubLspBinaryVersion {
2056 name,
2057 url,
2058 digest: expected_digest,
2059 } = latest_version;
2060 let destination_path = container_dir.join(format!("ruff-{name}"));
2061 let server_path = match Self::GITHUB_ASSET_KIND {
2062 AssetKind::TarGz | AssetKind::Gz => destination_path
2063 .join(Self::build_asset_name()?.0)
2064 .join("ruff"),
2065 AssetKind::Zip => destination_path.clone().join("ruff.exe"),
2066 };
2067
2068 let binary = LanguageServerBinary {
2069 path: server_path.clone(),
2070 env: None,
2071 arguments: vec!["server".into()],
2072 };
2073
2074 let metadata_path = destination_path.with_extension("metadata");
2075 let metadata = GithubBinaryMetadata::read_from_file(&metadata_path)
2076 .await
2077 .ok();
2078 if let Some(metadata) = metadata {
2079 let validity_check = async || {
2080 delegate
2081 .try_exec(LanguageServerBinary {
2082 path: server_path.clone(),
2083 arguments: vec!["--version".into()],
2084 env: None,
2085 })
2086 .await
2087 .inspect_err(|err| {
2088 log::warn!("Unable to run {server_path:?} asset, redownloading: {err}",)
2089 })
2090 };
2091 if let (Some(actual_digest), Some(expected_digest)) =
2092 (&metadata.digest, &expected_digest)
2093 {
2094 if actual_digest == expected_digest {
2095 if validity_check().await.is_ok() {
2096 return Ok(binary);
2097 }
2098 } else {
2099 log::info!(
2100 "SHA-256 mismatch for {destination_path:?} asset, downloading new asset. Expected: {expected_digest}, Got: {actual_digest}"
2101 );
2102 }
2103 } else if validity_check().await.is_ok() {
2104 return Ok(binary);
2105 }
2106 }
2107
2108 download_server_binary(
2109 delegate,
2110 &url,
2111 expected_digest.as_deref(),
2112 &destination_path,
2113 Self::GITHUB_ASSET_KIND,
2114 )
2115 .await?;
2116 make_file_executable(&server_path).await?;
2117 remove_matching(&container_dir, |path| path != destination_path).await;
2118 GithubBinaryMetadata::write_to_file(
2119 &GithubBinaryMetadata {
2120 metadata_version: 1,
2121 digest: expected_digest,
2122 },
2123 &metadata_path,
2124 )
2125 .await?;
2126
2127 Ok(LanguageServerBinary {
2128 path: server_path,
2129 env: None,
2130 arguments: vec!["server".into()],
2131 })
2132 }
2133
2134 async fn cached_server_binary(
2135 &self,
2136 container_dir: PathBuf,
2137 _: &dyn LspAdapterDelegate,
2138 ) -> Option<LanguageServerBinary> {
2139 maybe!(async {
2140 let mut last = None;
2141 let mut entries = self.fs.read_dir(&container_dir).await?;
2142 while let Some(entry) = entries.next().await {
2143 let path = entry?;
2144 if path.extension().is_some_and(|ext| ext == "metadata") {
2145 continue;
2146 }
2147 last = Some(path);
2148 }
2149
2150 let path = last.context("no cached binary")?;
2151 let path = match Self::GITHUB_ASSET_KIND {
2152 AssetKind::TarGz | AssetKind::Gz => {
2153 path.join(Self::build_asset_name()?.0).join("ruff")
2154 }
2155 AssetKind::Zip => path.join("ruff.exe"),
2156 };
2157
2158 anyhow::Ok(LanguageServerBinary {
2159 path,
2160 env: None,
2161 arguments: vec!["server".into()],
2162 })
2163 })
2164 .await
2165 .log_err()
2166 }
2167}
2168
2169#[cfg(test)]
2170mod tests {
2171 use gpui::{AppContext as _, BorrowAppContext, Context, TestAppContext};
2172 use language::{AutoindentMode, Buffer, language_settings::AllLanguageSettings};
2173 use settings::SettingsStore;
2174 use std::num::NonZeroU32;
2175
2176 #[gpui::test]
2177 async fn test_python_autoindent(cx: &mut TestAppContext) {
2178 cx.executor().set_block_on_ticks(usize::MAX..=usize::MAX);
2179 let language = crate::language("python", tree_sitter_python::LANGUAGE.into());
2180 cx.update(|cx| {
2181 let test_settings = SettingsStore::test(cx);
2182 cx.set_global(test_settings);
2183 language::init(cx);
2184 cx.update_global::<SettingsStore, _>(|store, cx| {
2185 store.update_user_settings::<AllLanguageSettings>(cx, |s| {
2186 s.defaults.tab_size = NonZeroU32::new(2);
2187 });
2188 });
2189 });
2190
2191 cx.new(|cx| {
2192 let mut buffer = Buffer::local("", cx).with_language(language, cx);
2193 let append = |buffer: &mut Buffer, text: &str, cx: &mut Context<Buffer>| {
2194 let ix = buffer.len();
2195 buffer.edit([(ix..ix, text)], Some(AutoindentMode::EachLine), cx);
2196 };
2197
2198 // indent after "def():"
2199 append(&mut buffer, "def a():\n", cx);
2200 assert_eq!(buffer.text(), "def a():\n ");
2201
2202 // preserve indent after blank line
2203 append(&mut buffer, "\n ", cx);
2204 assert_eq!(buffer.text(), "def a():\n \n ");
2205
2206 // indent after "if"
2207 append(&mut buffer, "if a:\n ", cx);
2208 assert_eq!(buffer.text(), "def a():\n \n if a:\n ");
2209
2210 // preserve indent after statement
2211 append(&mut buffer, "b()\n", cx);
2212 assert_eq!(buffer.text(), "def a():\n \n if a:\n b()\n ");
2213
2214 // preserve indent after statement
2215 append(&mut buffer, "else", cx);
2216 assert_eq!(buffer.text(), "def a():\n \n if a:\n b()\n else");
2217
2218 // dedent "else""
2219 append(&mut buffer, ":", cx);
2220 assert_eq!(buffer.text(), "def a():\n \n if a:\n b()\n else:");
2221
2222 // indent lines after else
2223 append(&mut buffer, "\n", cx);
2224 assert_eq!(
2225 buffer.text(),
2226 "def a():\n \n if a:\n b()\n else:\n "
2227 );
2228
2229 // indent after an open paren. the closing paren is not indented
2230 // because there is another token before it on the same line.
2231 append(&mut buffer, "foo(\n1)", cx);
2232 assert_eq!(
2233 buffer.text(),
2234 "def a():\n \n if a:\n b()\n else:\n foo(\n 1)"
2235 );
2236
2237 // dedent the closing paren if it is shifted to the beginning of the line
2238 let argument_ix = buffer.text().find('1').unwrap();
2239 buffer.edit(
2240 [(argument_ix..argument_ix + 1, "")],
2241 Some(AutoindentMode::EachLine),
2242 cx,
2243 );
2244 assert_eq!(
2245 buffer.text(),
2246 "def a():\n \n if a:\n b()\n else:\n foo(\n )"
2247 );
2248
2249 // preserve indent after the close paren
2250 append(&mut buffer, "\n", cx);
2251 assert_eq!(
2252 buffer.text(),
2253 "def a():\n \n if a:\n b()\n else:\n foo(\n )\n "
2254 );
2255
2256 // manually outdent the last line
2257 let end_whitespace_ix = buffer.len() - 4;
2258 buffer.edit(
2259 [(end_whitespace_ix..buffer.len(), "")],
2260 Some(AutoindentMode::EachLine),
2261 cx,
2262 );
2263 assert_eq!(
2264 buffer.text(),
2265 "def a():\n \n if a:\n b()\n else:\n foo(\n )\n"
2266 );
2267
2268 // preserve the newly reduced indentation on the next newline
2269 append(&mut buffer, "\n", cx);
2270 assert_eq!(
2271 buffer.text(),
2272 "def a():\n \n if a:\n b()\n else:\n foo(\n )\n\n"
2273 );
2274
2275 // reset to a for loop statement
2276 let statement = "for i in range(10):\n print(i)\n";
2277 buffer.edit([(0..buffer.len(), statement)], None, cx);
2278
2279 // insert single line comment after each line
2280 let eol_ixs = statement
2281 .char_indices()
2282 .filter_map(|(ix, c)| if c == '\n' { Some(ix) } else { None })
2283 .collect::<Vec<usize>>();
2284 let editions = eol_ixs
2285 .iter()
2286 .enumerate()
2287 .map(|(i, &eol_ix)| (eol_ix..eol_ix, format!(" # comment {}", i + 1)))
2288 .collect::<Vec<(std::ops::Range<usize>, String)>>();
2289 buffer.edit(editions, Some(AutoindentMode::EachLine), cx);
2290 assert_eq!(
2291 buffer.text(),
2292 "for i in range(10): # comment 1\n print(i) # comment 2\n"
2293 );
2294
2295 // reset to a simple if statement
2296 buffer.edit([(0..buffer.len(), "if a:\n b(\n )")], None, cx);
2297
2298 // dedent "else" on the line after a closing paren
2299 append(&mut buffer, "\n else:\n", cx);
2300 assert_eq!(buffer.text(), "if a:\n b(\n )\nelse:\n ");
2301
2302 buffer
2303 });
2304 }
2305}