Always check directly-passed-in files (#1564)

resources/test/project/README.md

@@ -64,11 +64,11 @@ Found 9 error(s).
 9 potentially fixable with the --fix option.
 ```
 
-Running from a parent directory should this "ignore" the `exclude` (hence, `concepts/file.py` gets
+Running from a parent directory should "ignore" the `exclude` (hence, `concepts/file.py` gets
 included in the output):
 
 ```
-∴ (cd resources/test/project/examples && cargo run -- --config=docs/pyproject.toml .)
+∴ (cd resources/test/project/examples && cargo run -- --config=docs/ruff.toml .)
 docs/docs/concepts/file.py:5:5: F841 Local variable `x` is assigned to but never used
 docs/docs/file.py:1:1: I001 Import block is un-sorted or un-formatted
 docs/docs/file.py:8:5: F841 Local variable `x` is assigned to but never used
@@ -90,5 +90,7 @@ Unless we `--force-exclude`:
 
 ```
 ∴ cargo run resources/test/project/examples/excluded/ --force-exclude
+warning: No Python files found under the given path(s)
 ∴ cargo run resources/test/project/examples/excluded/script.py --force-exclude
+warning: No Python files found under the given path(s)
 ```

src/commands.rs

@@ -46,9 +46,10 @@ pub fn run(
 
     if paths.is_empty() {
         one_time_warning!(
-            "{}: {}",
+            "{}{} {}",
             "warning".yellow().bold(),
-            "No Python files found under the given path(s)"
+            ":".bold(),
+            "No Python files found under the given path(s)".bold()
         );
         return Ok(Diagnostics::default());
     }
@@ -196,9 +197,10 @@ pub fn add_noqa(
 
     if paths.is_empty() {
         one_time_warning!(
-            "{}: {}",
+            "{}{} {}",
             "warning".yellow().bold(),
-            "No Python files found under the given path(s)"
+            ":".bold(),
+            "No Python files found under the given path(s)".bold()
         );
         return Ok(0);
     }
@@ -270,9 +272,10 @@ pub fn show_files(
 
     if paths.is_empty() {
         one_time_warning!(
-            "{}: {}",
+            "{}{} {}",
             "warning".yellow().bold(),
-            "No Python files found under the given path(s)"
+            ":".bold(),
+            "No Python files found under the given path(s)".bold()
         );
         return Ok(());
     }

src/main_native.rs

@@ -32,6 +32,7 @@ use clap::{CommandFactory, Parser};
 use colored::Colorize;
 use notify::{recommended_watcher, RecursiveMode, Watcher};
 use path_absolutize::path_dedot;
+use ruff::one_time_warning;
 
 /// Resolve the relevant settings strategy and defaults for the current
 /// invocation.
@@ -177,24 +178,30 @@ pub(crate) fn inner_main() -> Result<ExitCode> {
     if cache {
         // `--no-cache` doesn't respect code changes, and so is often confusing during
         // development.
-        eprintln!(
+        one_time_warning!(
-            "{}: debug build without --no-cache.",
+            "{}{} {}",
-            "warning".yellow().bold()
+            "warning".yellow().bold(),
+            ":".bold(),
+            "debug build without --no-cache.".bold()
         );
     }
 
     let printer = Printer::new(&format, &log_level, &autofix, &violations);
     if cli.watch {
         if !matches!(autofix, fixer::Mode::None) {
-            eprintln!(
+            one_time_warning!(
-                "{}: --fix is not enabled in watch mode.",
+                "{}{} {}",
-                "warning".yellow().bold()
+                "warning".yellow().bold(),
+                ":".bold(),
+                "--fix is not enabled in watch mode.".bold()
             );
         }
         if format != SerializationFormat::Text {
-            eprintln!(
+            one_time_warning!(
-                "{}: --format 'text' is used in watch mode.",
+                "{}{} {}",
-                "warning".yellow().bold()
+                "warning".yellow().bold(),
+                ":".bold(),
+                "--format 'text' is used in watch mode.".bold()
             );
         }
 

src/resolver.rs

@@ -215,19 +215,7 @@ pub fn python_files_in_path(
     overrides: &Overrides,
 ) -> Result<(Vec<Result<DirEntry, ignore::Error>>, Resolver)> {
     // Normalize every path (e.g., convert from relative to absolute).
-    let mut paths = paths
+    let mut paths: Vec<PathBuf> = paths.iter().map(fs::normalize_path).collect();
-        .iter()
-        .map(|path| {
-            if path.is_file() && !is_python_path(path) {
-                Err(anyhow::anyhow!(
-                    "`{}` is not supported; Ruff only supports `.py` and `.pyi` files",
-                    path.to_str().unwrap()
-                ))
-            } else {
-                Ok(fs::normalize_path(path))
-            }
-        })
-        .collect::<Result<Vec<PathBuf>>>()?;
 
     // Search for `pyproject.toml` files in all parent directories.
     let mut resolver = Resolver::default();
@@ -331,7 +319,12 @@ pub fn python_files_in_path(
                 }
             }
 
-            if result.as_ref().map_or(true, is_python_entry) {
+            if result.as_ref().map_or(true, |entry| {
+                // Accept all files that are passed-in directly.
+                (entry.depth() == 0 && entry.file_type().map_or(false, |ft| ft.is_file()))
+                    // Accept all Python files.
+                    || is_python_entry(entry)
+            }) {
                 files.lock().unwrap().push(result);
             }
 
@@ -456,7 +449,7 @@ mod tests {
         assert!(match_exclusion(
             file_path,
             file_basename,
-            &make_exclusion(exclude,)
+            &make_exclusion(exclude),
         ));
 
         let path = Path::new("foo/bar").absolutize_from(project_root).unwrap();
@@ -471,7 +464,7 @@ mod tests {
         assert!(match_exclusion(
             file_path,
             file_basename,
-            &make_exclusion(exclude,)
+            &make_exclusion(exclude),
         ));
 
         let path = Path::new("foo/bar/baz.py")
@@ -488,7 +481,7 @@ mod tests {
         assert!(match_exclusion(
             file_path,
             file_basename,
-            &make_exclusion(exclude,)
+            &make_exclusion(exclude),
         ));
 
         let path = Path::new("foo/bar").absolutize_from(project_root).unwrap();
@@ -503,7 +496,7 @@ mod tests {
         assert!(match_exclusion(
             file_path,
             file_basename,
-            &make_exclusion(exclude,)
+            &make_exclusion(exclude),
         ));
 
         let path = Path::new("foo/bar/baz.py")
@@ -520,7 +513,7 @@ mod tests {
         assert!(match_exclusion(
             file_path,
             file_basename,
-            &make_exclusion(exclude,)
+            &make_exclusion(exclude),
         ));
 
         let path = Path::new("foo/bar/baz.py")
@@ -537,7 +530,7 @@ mod tests {
         assert!(match_exclusion(
             file_path,
             file_basename,
-            &make_exclusion(exclude,)
+            &make_exclusion(exclude),
         ));
 
         let path = Path::new("foo/bar/baz.py")
@@ -554,7 +547,7 @@ mod tests {
         assert!(!match_exclusion(
             file_path,
             file_basename,
-            &make_exclusion(exclude,)
+            &make_exclusion(exclude),
         ));
 
         Ok(())