Add CLI implementation and MVP performance review
- Implement functional CLI with clap argument parsing - Add directory scanning and metadata extraction at startup - Fix filesystem.rs to store tokio Handle for async/sync bridge - Fix flake.nix with LD_LIBRARY_PATH for libfuse3 - Add MVP performance review with real-world benchmark results Benchmarks show: - Mount time: 8ms (target <500ms) - Throughput: 2-3 GB/s (target >500 MB/s) - Identifies critical gap: incomplete file caching (only ~2MB per file) - Identifies missing CDC chunking per architecture spec
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Alexander
@@ -1,3 +1,195 @@
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fn main() {
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println!("MusicFS CLI - placeholder");
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use anyhow::{Context, Result};
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use clap::Parser;
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use musicfs_cache::TreeBuilder;
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use musicfs_cas::{CasConfig, CasStore, ContentFetcher, FileReader};
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use musicfs_core::{FileId, FileMeta, OriginId, RealPath, VirtualPath};
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use musicfs_fuse::MusicFs;
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use musicfs_metadata::MetadataParser;
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use musicfs_origins::{LocalOrigin, Origin};
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use std::path::{Path, PathBuf};
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use std::sync::{Arc, RwLock};
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use std::time::SystemTime;
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use tracing::{debug, info};
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#[derive(Parser)]
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#[command(name = "musicfs")]
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#[command(about = "Virtual FUSE filesystem for music libraries")]
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struct Cli {
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#[arg(help = "Mount point for the virtual filesystem")]
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mountpoint: PathBuf,
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#[arg(short, long, help = "Source music directory (origin)")]
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origin: PathBuf,
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#[arg(short, long, help = "Cache directory for CAS chunks")]
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cache_dir: Option<PathBuf>,
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#[arg(short, long, default_value = "info", help = "Log level (debug, info, warn, error)")]
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log_level: String,
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}
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fn main() -> Result<()> {
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let cli = Cli::parse();
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init_logging(&cli.log_level);
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let runtime = tokio::runtime::Runtime::new().context("Failed to create Tokio runtime")?;
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let handle = runtime.handle().clone();
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let (tree, reader) = runtime.block_on(async {
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info!("MusicFS starting...");
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info!("Origin: {:?}", cli.origin);
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info!("Mountpoint: {:?}", cli.mountpoint);
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let cache_dir = cli.cache_dir.unwrap_or_else(|| {
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dirs::cache_dir()
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.unwrap_or_else(|| PathBuf::from("/tmp"))
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.join("musicfs")
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});
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info!("Cache directory: {:?}", cache_dir);
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std::fs::create_dir_all(&cache_dir).context("Failed to create cache directory")?;
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std::fs::create_dir_all(&cli.mountpoint).context("Failed to create mountpoint")?;
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let cas_config = CasConfig {
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chunks_dir: cache_dir.join("chunks"),
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..Default::default()
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};
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let store = Arc::new(CasStore::open(cas_config).await.context("Failed to open CAS store")?);
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info!("CAS store initialized");
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let origin_id = OriginId::from("local");
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let origin = Arc::new(LocalOrigin::new(origin_id.clone(), cli.origin.clone()));
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info!("Origin registered: {}", origin.display_name());
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let fetcher = Arc::new(ContentFetcher::new(store.clone()));
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fetcher.register_origin(origin);
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info!("Scanning music files...");
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let files = scan_music_files(&cli.origin, &origin_id).await?;
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info!("Found {} music files", files.len());
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let mut builder = TreeBuilder::new();
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for file in &files {
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builder.add_file(file);
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fetcher.register_file(file.clone());
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}
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let tree = Arc::new(RwLock::new(builder.build()));
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info!("Virtual tree built");
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let reader = Arc::new(FileReader::with_fetcher(store, fetcher));
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Ok::<_, anyhow::Error>((tree, reader))
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})?;
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let fs = MusicFs::with_reader(tree, reader, handle);
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info!("Mounting filesystem at {:?}", cli.mountpoint);
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info!("Press Ctrl+C to unmount");
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fs.mount(&cli.mountpoint).context("Failed to mount filesystem")?;
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Ok(())
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}
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fn init_logging(level: &str) {
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use tracing_subscriber::{fmt, prelude::*, EnvFilter};
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let filter = EnvFilter::try_from_default_env()
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.unwrap_or_else(|_| EnvFilter::new(level));
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tracing_subscriber::registry()
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.with(fmt::layer())
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.with(filter)
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.init();
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}
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async fn scan_music_files(dir: &Path, origin_id: &OriginId) -> Result<Vec<FileMeta>> {
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let parser = MetadataParser::new();
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let mut files = Vec::new();
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let mut file_id_counter = 1i64;
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scan_dir_recursive(dir, dir, origin_id, &parser, &mut files, &mut file_id_counter).await?;
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Ok(files)
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}
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async fn scan_dir_recursive(
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base: &Path,
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dir: &Path,
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origin_id: &OriginId,
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parser: &MetadataParser,
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files: &mut Vec<FileMeta>,
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id_counter: &mut i64,
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) -> Result<()> {
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let mut entries = tokio::fs::read_dir(dir).await?;
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while let Some(entry) = entries.next_entry().await? {
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let path = entry.path();
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let metadata = entry.metadata().await?;
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if metadata.is_dir() {
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Box::pin(scan_dir_recursive(base, &path, origin_id, parser, files, id_counter)).await?;
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} else if is_audio_file(&path) {
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let relative_path = path.strip_prefix(base).unwrap_or(&path);
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let audio_meta = match parser.parse_file(&path) {
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Ok(meta) => Some(meta),
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Err(e) => {
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debug!("Failed to parse metadata for {:?}: {}", path, e);
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None
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}
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};
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let virtual_path = build_virtual_path(&path, audio_meta.as_ref());
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let file_meta = FileMeta {
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id: FileId(*id_counter),
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virtual_path,
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real_path: RealPath {
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origin_id: origin_id.clone(),
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path: PathBuf::from("/").join(relative_path),
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},
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size: metadata.len(),
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mtime: metadata.modified().unwrap_or(SystemTime::UNIX_EPOCH),
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content_hash: None,
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audio: audio_meta,
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};
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debug!("Found: {:?} -> {:?}", file_meta.real_path.path, file_meta.virtual_path);
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files.push(file_meta);
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*id_counter += 1;
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}
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}
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Ok(())
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}
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fn is_audio_file(path: &Path) -> bool {
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matches!(
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path.extension().and_then(|e| e.to_str()).map(|e| e.to_lowercase()).as_deref(),
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Some("flac" | "mp3" | "ogg" | "wav" | "m4a" | "aac" | "opus")
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)
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}
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fn build_virtual_path(path: &Path, audio: Option<&musicfs_core::AudioMeta>) -> VirtualPath {
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if let Some(meta) = audio {
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let artist = meta.artist.as_deref().unwrap_or("Unknown Artist");
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let album = meta.album.as_deref().unwrap_or("Unknown Album");
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let filename = path.file_name().and_then(|n| n.to_str()).unwrap_or("track");
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VirtualPath::new(&format!("/{}/{}/{}", sanitize(artist), sanitize(album), filename))
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} else {
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let filename = path.file_name().and_then(|n| n.to_str()).unwrap_or("unknown");
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VirtualPath::new(&format!("/Unknown Artist/Unknown Album/{}", filename))
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}
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}
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fn sanitize(s: &str) -> String {
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s.chars()
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.map(|c| match c {
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'/' | '\\' | ':' | '*' | '?' | '"' | '<' | '>' | '|' => '_',
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_ => c,
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})
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.collect()
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}
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