Initial upload: Auto README Generator CLI v0.1.0

src/auto_readme/parsers/rust_parser.py

@@ -0,0 +1,65 @@
+"""Rust dependency parser for Cargo.toml."""
+
+from pathlib import Path
+from typing import Optional
+import tomllib
+
+from . import BaseParser, Dependency
+
+
+class RustDependencyParser(BaseParser):
+    """Parser for Rust Cargo.toml files."""
+
+    def can_parse(self, path: Path) -> bool:
+        """Check if the file is a Cargo.toml."""
+        return path.name.lower() == "cargo.toml"
+
+    def parse(self, path: Path) -> list[Dependency]:
+        """Parse dependencies from Cargo.toml."""
+        if not path.exists():
+            return []
+
+        dependencies = []
+        try:
+            with open(path, "rb") as f:
+                data = tomllib.load(f)
+        except (tomllib.TOMLDecodeError, OSError):
+            return dependencies
+
+        self._parse_dependencies_section(data, "dependencies", dependencies, path)
+        self._parse_dependencies_section(data, "dev-dependencies", dependencies, path, is_dev=True)
+        self._parse_dependencies_section(data, "build-dependencies", dependencies, path, is_dev=True)
+
+        return dependencies
+
+    def _parse_dependencies_section(
+        self,
+        data: dict,
+        section: str,
+        dependencies: list,
+        source_file: Path,
+        is_dev: bool = False,
+    ) -> None:
+        """Parse a specific dependencies section."""
+        if section in data:
+            section_data = data[section]
+            if isinstance(section_data, dict):
+                for name, value in section_data.items():
+                    if isinstance(value, str):
+                        version = value
+                    elif isinstance(value, dict):
+                        version = value.get("version", None)
+                        features = value.get("features", [])
+                        if features:
+                            pass
+                    else:
+                        version = None
+
+                    dependencies.append(
+                        Dependency(
+                            name=name,
+                            version=self._normalize_version(version),
+                            is_dev=is_dev,
+                            source_file=source_file,
+                        )
+                    )