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Use forget for module resolver database (#13438)
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## Summary

A tiny bit faster and the `red-knot` CLI does the same thing.
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@charliermarsh
charliermarsh committed Sep 21, 2024
1 parent 653c090 commit f06d44e
Showing 1 changed file with 95 additions and 90 deletions.
185 changes: 95 additions & 90 deletions crates/ruff/src/commands/analyze_graph.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -67,102 +67,105 @@ pub(crate) fn analyze_graph(
.into(),
)?;

// Create a cache for resolved globs.
let glob_resolver = Arc::new(Mutex::new(GlobResolver::default()));

// Collect and resolve the imports for each file.
let result = Arc::new(Mutex::new(Vec::new()));
let inner_result = Arc::clone(&result);

rayon::scope(move |scope| {
for resolved_file in paths {
let Ok(resolved_file) = resolved_file else {
continue;
};
let imports = {
// Create a cache for resolved globs.
let glob_resolver = Arc::new(Mutex::new(GlobResolver::default()));

// Collect and resolve the imports for each file.
let result = Arc::new(Mutex::new(Vec::new()));
let inner_result = Arc::clone(&result);
let db = db.snapshot();

rayon::scope(move |scope| {
for resolved_file in paths {
let Ok(resolved_file) = resolved_file else {
continue;
};

let path = resolved_file.path();
let package = path
.parent()
.and_then(|parent| package_roots.get(parent))
.and_then(Clone::clone);

// Resolve the per-file settings.
let settings = resolver.resolve(path);
let string_imports = settings.analyze.detect_string_imports;
let include_dependencies = settings.analyze.include_dependencies.get(path).cloned();

// Skip excluded files.
if (settings.file_resolver.force_exclude || !resolved_file.is_root())
&& match_exclusion(
resolved_file.path(),
resolved_file.file_name(),
&settings.analyze.exclude,
)
{
continue;
}

let path = resolved_file.path();
let package = path
.parent()
.and_then(|parent| package_roots.get(parent))
.and_then(Clone::clone);

// Resolve the per-file settings.
let settings = resolver.resolve(path);
let string_imports = settings.analyze.detect_string_imports;
let include_dependencies = settings.analyze.include_dependencies.get(path).cloned();

// Skip excluded files.
if (settings.file_resolver.force_exclude || !resolved_file.is_root())
&& match_exclusion(
resolved_file.path(),
resolved_file.file_name(),
&settings.analyze.exclude,
)
{
continue;
}
// Ignore non-Python files.
let source_type = match settings.analyze.extension.get(path) {
None => match SourceType::from(&path) {
SourceType::Python(source_type) => source_type,
SourceType::Toml(_) => {
debug!("Ignoring TOML file: {}", path.display());
continue;
}
},
Some(language) => PySourceType::from(language),
};
if matches!(source_type, PySourceType::Ipynb) {
debug!("Ignoring Jupyter notebook: {}", path.display());
continue;
}

// Ignore non-Python files.
let source_type = match settings.analyze.extension.get(path) {
None => match SourceType::from(&path) {
SourceType::Python(source_type) => source_type,
SourceType::Toml(_) => {
debug!("Ignoring TOML file: {}", path.display());
continue;
// Convert to system paths.
let Ok(package) = package.map(SystemPathBuf::from_path_buf).transpose() else {
warn!("Failed to convert package to system path");
continue;
};
let Ok(path) = SystemPathBuf::from_path_buf(resolved_file.into_path()) else {
warn!("Failed to convert path to system path");
continue;
};

let db = db.snapshot();
let glob_resolver = glob_resolver.clone();
let root = root.clone();
let result = inner_result.clone();
scope.spawn(move |_| {
// Identify any imports via static analysis.
let mut imports =
ModuleImports::detect(&db, &path, package.as_deref(), string_imports)
.unwrap_or_else(|err| {
warn!("Failed to generate import map for {path}: {err}");
ModuleImports::default()
});

debug!("Discovered {} imports for {}", imports.len(), path);

// Append any imports that were statically defined in the configuration.
if let Some((root, globs)) = include_dependencies {
let mut glob_resolver = glob_resolver.lock().unwrap();
imports.extend(glob_resolver.resolve(root, globs));
}
},
Some(language) => PySourceType::from(language),
};
if matches!(source_type, PySourceType::Ipynb) {
debug!("Ignoring Jupyter notebook: {}", path.display());
continue;
}

// Convert to system paths.
let Ok(package) = package.map(SystemPathBuf::from_path_buf).transpose() else {
warn!("Failed to convert package to system path");
continue;
};
let Ok(path) = SystemPathBuf::from_path_buf(resolved_file.into_path()) else {
warn!("Failed to convert path to system path");
continue;
};

let db = db.snapshot();
let glob_resolver = glob_resolver.clone();
let root = root.clone();
let result = inner_result.clone();
scope.spawn(move |_| {
// Identify any imports via static analysis.
let mut imports =
ModuleImports::detect(&db, &path, package.as_deref(), string_imports)
.unwrap_or_else(|err| {
warn!("Failed to generate import map for {path}: {err}");
ModuleImports::default()
});

debug!("Discovered {} imports for {}", imports.len(), path);

// Append any imports that were statically defined in the configuration.
if let Some((root, globs)) = include_dependencies {
let mut glob_resolver = glob_resolver.lock().unwrap();
imports.extend(glob_resolver.resolve(root, globs));
}
// Convert the path (and imports) to be relative to the working directory.
let path = path
.strip_prefix(&root)
.map(SystemPath::to_path_buf)
.unwrap_or(path);
let imports = imports.relative_to(&root);

// Convert the path (and imports) to be relative to the working directory.
let path = path
.strip_prefix(&root)
.map(SystemPath::to_path_buf)
.unwrap_or(path);
let imports = imports.relative_to(&root);

result.lock().unwrap().push((path, imports));
});
}
});
result.lock().unwrap().push((path, imports));
});
}
});

// Collect the results.
let imports = Arc::into_inner(result).unwrap().into_inner()?;
// Collect the results.
Arc::into_inner(result).unwrap().into_inner()?
};

// Generate the import map.
let import_map = match args.direction {
Expand All @@ -173,6 +176,8 @@ pub(crate) fn analyze_graph(
// Print to JSON.
println!("{}", serde_json::to_string_pretty(&import_map)?);

std::mem::forget(db);

Ok(ExitStatus::Success)
}

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