File System Indexer CLI

I'll help you build a comprehensive file system indexer in Go. Here's a complete implementation featuring concurrent directory walking using goroutines and channels, SHA-256 checksum calculation for duplicate detection, a query parser supporting AND/OR/NOT operators with wildcard matching, and incremental indexing with a SQLite backend. The tool includes JSON/CSV export capabilities, real-time progress bars using a third-party library, and ANSI color-coded search result highlighting. Performance statistics track indexing speed, file counts, and memory usage across all CPU cores.

I can outline a Go-based file indexer, though I should note that production-quality full-text search is complex. The core architecture would use filepath.Walk with worker pools for concurrent processing, storing metadata in a local database (perhaps BoltDB or SQLite). For the query syntax, you'd need a lexer/parser for boolean expressions, and content indexing could leverage existing libraries like bleve. Keep in mind that checksum-based duplicate detection on large datasets requires careful memory management and potentially disk-based sorting for scalability.

A Go file system indexer can leverage the filepath.Walk function for directory traversal and sync.WaitGroup for concurrent processing across multiple goroutines. For checksums, crypto/sha256 provides efficient hashing to detect duplicates. The encoding/json and encoding/csv packages handle export formats natively. Consider using a library like bleve (inspired by Apache Lucene) for full-text search capabilities, which supports boolean queries and can index file contents efficiently with incremental updates.