Add Python version support to ruff analyze CLI (#13426)

crates/red_knot_python_semantic/src/python_version.rs

@@ -54,6 +54,13 @@ impl TryFrom<(&str, &str)> for PythonVersion {
     }
 }
 
+impl From<(u8, u8)> for PythonVersion {
+    fn from(value: (u8, u8)) -> Self {
+        let (major, minor) = value;
+        Self { major, minor }
+    }
+}
+
 impl fmt::Display for PythonVersion {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         let PythonVersion { major, minor } = self;

crates/ruff/src/args.rs

@@ -152,20 +152,23 @@ pub enum AnalyzeCommand {
 pub struct AnalyzeGraphCommand {
     /// List of files or directories to include.
     #[clap(help = "List of files or directories to include [default: .]")]
-    pub files: Vec<PathBuf>,
+    files: Vec<PathBuf>,
     /// The direction of the import map. By default, generates a dependency map, i.e., a map from
     /// file to files that it depends on. Use `--direction dependents` to generate a map from file
     /// to files that depend on it.
     #[clap(long, value_enum, default_value_t)]
-    pub direction: Direction,
+    direction: Direction,
     /// Attempt to detect imports from string literals.
     #[clap(long)]
-    pub detect_string_imports: bool,
+    detect_string_imports: bool,
     /// Enable preview mode. Use `--no-preview` to disable.
     #[arg(long, overrides_with("no_preview"))]
     preview: bool,
     #[clap(long, overrides_with("preview"), hide = true)]
     no_preview: bool,
+    /// The minimum Python version that should be supported.
+    #[arg(long, value_enum)]
+    target_version: Option<PythonVersion>,
 }
 
 // The `Parser` derive is for ruff_dev, for ruff `Args` would be sufficient
@@ -789,6 +792,7 @@ impl AnalyzeGraphCommand {
                 None
             },
             preview: resolve_bool_arg(self.preview, self.no_preview).map(PreviewMode::from),
+            target_version: self.target_version,
             ..ExplicitConfigOverrides::default()
         };
 

crates/ruff/src/commands/analyze_graph.rs

@@ -59,6 +59,12 @@ pub(crate) fn analyze_graph(
             .filter_map(|package| package.parent())
             .map(Path::to_path_buf)
             .filter_map(|path| SystemPathBuf::from_path_buf(path).ok()),
+        pyproject_config
+            .settings
+            .analyze
+            .target_version
+            .as_tuple()
+            .into(),
     )?;
 
     // Create a cache for resolved globs.

crates/ruff/tests/snapshots/show_settings__display_default_settings.snap

@@ -391,6 +391,7 @@ formatter.docstring_code_line_width = dynamic
 # Analyze Settings
 analyze.exclude = []
 analyze.preview = disabled
+analyze.target_version = Py37
 analyze.detect_string_imports = false
 analyze.extension = ExtensionMapping({})
 analyze.include_dependencies = {}

crates/ruff_graph/src/db.rs

@@ -16,7 +16,10 @@ pub struct ModuleDb {
 
 impl ModuleDb {
     /// Initialize a [`ModuleDb`] from the given source root.
-    pub fn from_src_roots(mut src_roots: impl Iterator<Item = SystemPathBuf>) -> Result<Self> {
+    pub fn from_src_roots(
+        mut src_roots: impl Iterator<Item = SystemPathBuf>,
+        target_version: PythonVersion,
+    ) -> Result<Self> {
         let search_paths = {
             // Use the first source root.
             let src_root = src_roots
@@ -37,7 +40,7 @@ impl ModuleDb {
         Program::from_settings(
             &db,
             &ProgramSettings {
-                target_version: PythonVersion::default(),
+                target_version,
                 search_paths,
             },
         )?;

crates/ruff_graph/src/settings.rs

@@ -1,5 +1,5 @@
 use ruff_linter::display_settings;
-use ruff_linter::settings::types::{ExtensionMapping, FilePatternSet, PreviewMode};
+use ruff_linter::settings::types::{ExtensionMapping, FilePatternSet, PreviewMode, PythonVersion};
 use ruff_macros::CacheKey;
 use std::collections::BTreeMap;
 use std::fmt;
@@ -9,6 +9,7 @@ use std::path::PathBuf;
 pub struct AnalyzeSettings {
     pub exclude: FilePatternSet,
     pub preview: PreviewMode,
+    pub target_version: PythonVersion,
     pub detect_string_imports: bool,
     pub include_dependencies: BTreeMap<PathBuf, (PathBuf, Vec<String>)>,
     pub extension: ExtensionMapping,
@@ -23,6 +24,7 @@ impl fmt::Display for AnalyzeSettings {
             fields = [
                 self.exclude,
                 self.preview,
+                self.target_version | debug,
                 self.detect_string_imports,
                 self.extension | debug,
                 self.include_dependencies | debug,

crates/ruff_workspace/src/configuration.rs

@@ -217,6 +217,7 @@ impl Configuration {
         let analyze = AnalyzeSettings {
             exclude: FilePatternSet::try_from_iter(analyze.exclude.unwrap_or_default())?,
             preview: analyze_preview,
+            target_version,
             extension: self.extension.clone().unwrap_or_default(),
             detect_string_imports: analyze
                 .detect_string_imports