Fast Path Length Checker: Detect Too-Long Paths in Seconds
What it is
A lightweight utility that scans files and directories to quickly find paths exceeding platform or application limits (e.g., Windows MAX_PATH, sync tools, version control systems).
Key features
- Rapid scans: Multithreaded traversal for fast results on large filesystems.
- Length thresholds: Configurable limits (per-platform presets like Windows, Linux, macOS, Git, cloud sync).
- Filters: Include/exclude by folder, filename patterns, or size.
- Batch reporting: CSV/JSON export and summary counts.
- Fix suggestions: Shorten paths with rename rules, move files, or create junctions/symlinks.
- Preview mode: Show proposed changes without modifying files.
Typical use cases
- Preparing repositories for cross-platform use (avoid Windows MAXPATH).
- Fixing cloud-sync or backup failures caused by long paths.
- Auditing large shared drives before migration.
- Integrating into CI to prevent commits with too-long paths.
How it works (brief)
- Recursively traverses directories.
- Computes full path lengths and compares to chosen threshold.
- Applies filters and outputs matches plus suggested remediations.
Quick deployment options
- Standalone GUI for non-technical users.
- CLI tool for scripting and CI integration.
- Library/API for embedding in migration or backup software.
Example CLI usage
Code
fast-path-checker scan C:\Projects –threshold 260 –exclude node_modules –output results.csv
Best practices
- Use conservative thresholds for cross-platform compatibility (<= 240 for Windows-targeted projects).
- Run scans before bulk copy/migration operations.
- Combine with automated rename rules in dry-run mode first.
Limitations
- Cannot change paths on read-only mounts without elevated permissions.
- Junctions/symlinks may not be supported uniformly across platforms.
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