Prompt
When using glob patterns for file system operations, ensure optimal performance and consistent behavior by configuring glob libraries appropriately and handling paths efficiently:
- Specify correct options for your glob library:
- Set
expandDirectories: falsewhen replacing libraries like fast-glob with alternatives that have different defaults - Use
absolute: truewhen you need absolute paths in results - Set appropriate
cwdto limit search scope and improve performance
- Set
// Less efficient: may search unnecessary directories
const files = globSync(pattern, {
ignore: ['**/node_modules/**']
})
// More efficient: properly scoped search with correct options
const files = globSync(pattern, {
cwd: path.resolve(path.dirname(id), dir),
absolute: true,
expandDirectories: false,
ignore: ['**/node_modules/**']
})
- Handle path normalization consistently by:
- Normalizing paths before using them in glob patterns
- Using regex for efficient path extraction when dealing with complex patterns
- Setting appropriate options for dotfile handling (
dot: true) when needed
- Optimize node_modules handling in glob patterns:
- Use regex-based extraction for path segments to avoid unnecessary file traversal
- Implement path rebasing for patterns that include node_modules to ensure ignore patterns work correctly
Remember that glob operations are computationally expensive, so always consider the algorithmic efficiency of your approach when working with large directory trees.