AeroFTP Files

[3.4.2] - 2026-04-05

CLI Pro: mount, ncdu, serve FTP/SFTP, daemon, crypt overlay, bisync

Added

• Bisync snapshot persistence: sync --direction both now saves state to .aeroftp-bisync.json after successful sync. Subsequent syncs use delta detection (size + mtime) to identify changes on each side, enabling safe bidirectional synchronization
• --conflict-mode flag: Configurable conflict resolution for bidirectional sync. Modes: newer (default), older, larger, smaller, skip. When both sides have different content, the chosen strategy determines which side wins
• --resync flag: Discard previous bisync snapshot and rebuild from scratch. Useful for recovery after interrupted syncs or state corruption
• Snapshot-based deletion detection: In --direction both --delete, files that existed in the previous snapshot but are now missing on one side are correctly detected as deletions and propagated to the other side
• --backup-dir and --backup-suffix: Move local files to a backup directory before overwriting or deleting during sync (previously accepted but ignored)
• --max-transfer flag: Abort CLI session after transferring a configurable byte limit (e.g. --max-transfer 10G). Counts uploads and downloads combined. Exit code 8 when exceeded, in-flight transfers complete before stopping
• --retries N flag: Automatic retry for failed transfer operations (get, put, sync). Default 3 attempts. Non-retryable errors (auth failure, usage error, unsupported) are never retried
• --retries-sleep flag: Configurable delay between retries (e.g. --retries-sleep 5s, 1m, 500ms). Default 1 second
• --max-backlog flag: Limit the number of queued transfer tasks in parallel operations. Default 10000
• --dump flag: Connection debug diagnostics to stderr. Supports headers, bodies, auth (comma-separated). Passwords are redacted by default, visible only with --dump auth

• All new flags are persistable as defaults in ~/.config/aeroftp/config.toml

• ncdu interactive disk usage explorer: New aeroftp ncdu command scans remote directories recursively and displays an interactive TUI (ratatui) with size bars, percentage breakdown, and keyboard navigation. Supports --export file.json for scripting and --json for piped output. Scan depth configurable with -d

• mount virtual filesystem (cross-platform): New aeroftp mount <mountpoint> mounts any remote as a local filesystem. On Linux/macOS uses FUSE with full read-write support (create, write, mkdir, rm, rmdir, rename, statfs). On Windows uses a WebDAV bridge that maps to a drive letter (aeroftp mount Z: --profile "MyServer"). Features: --read-only flag, metadata cache with configurable TTL (--cache-ttl), range read with fallback, --allow-other for multi-user access, graceful unmount. Tested on 8 providers across S3, FTP, WebDAV, and MEGA
• serve ftp: New aeroftp serve ftp exposes any remote as a local FTP server via libunftp. Full read-write: LIST, RETR, STOR, DELE, MKD, RMD, RNFR/RNTO, CWD. Anonymous access, configurable passive port range (--passive-ports). Any FTP client can now access S3, WebDAV, MEGA, or any other AeroFTP provider as if it were a standard FTP server
• Background daemon and job queue: New aeroftp daemon start/stop/status runs a background service with HTTP RC API on localhost. aeroftp jobs add/list/status/cancel manages persistent transfer jobs via SQLite. Health monitoring via curl http://localhost:14320/health. Enables persistent mounts, scheduled transfers, and automation
• Crypt overlay — zero-knowledge encryption: New aeroftp crypt init/ls/put/get provides transparent encryption on any provider. Content encrypted with AES-256-GCM (64KB blocks, HW accelerated), filenames encrypted with AES-256-SIV, key derivation via Argon2id (64MB, 3 iterations). The cloud provider never sees your file names or content. Overhead: ~33 bytes for small files, <0.1% for large files
• serve sftp: New aeroftp serve sftp exposes any remote as a local SFTP server via russh. Full SFTP v3 protocol: LIST, STAT, READ, WRITE, REMOVE, MKDIR, RMDIR, RENAME, REALPATH. Anonymous access with ED25519 host key. Any SFTP client (sftp, WinSCP, FileZilla, curl sftp://) can now access all 27 AeroFTP providers

Fixed

• FTP/FTPS Quick Connect "Missing Fields" error: Quick connect for FTP/FTPS showed "Missing Fields: Please fill in endpoint and credentials" even with all fields filled. The provider-path validation incorrectly blocked FTP/FTPS connections that have their own server field (#81)

Changed

• Sync comparison now uses mtime: File comparison in sync uses both size and modification time (previously size-only). Files with identical size but different timestamps are correctly detected as changed

Downloads:

• Windows: .msi installer, .exe, or .zip portable (no installation required)
• macOS: .dmg disk image
• Linux: .deb, .rpm, .snap, or .AppImage