amir
a9322d3214
Sync change detection (3rd attempt — now correct): - After UPLOAD: save null remote metadata (server mtime unknown until next listing); decide() treats null remoteModifiedAt as "not changed" - After DOWNLOAD: read actual local mtime via accessor.lastModifiedMs() so the stored value matches what walkFiles() sees on next scan - SKIP reconciliation: if known state has null timestamps and both sides exist, fill them in — stabilises state within 2 syncs after first transfer - Extract syncDecide() as internal top-level function for testability Unit tests (14 cases covering all key scenarios): - First sync decisions (upload/download/conflict) - Second sync after upload with null remote metadata → SKIP - Second sync after download with recorded local mtime → SKIP - Epoch-millis precision: same ms = SKIP, +1ms = change detected - Regression: epoch-second stored value would have differed → now correct - Delete behaviour (MIRROR vs KEEP) - Direction filters (UPLOAD_ONLY, DOWNLOAD_ONLY) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
SyncFlow
Native Android file sync app — sync any folder to WebDAV, SFTP, Nextcloud, ownCloud, Google Drive, Dropbox, or OneDrive.
Features
- Multi-provider — WebDAV, SFTP, SFTPGo, Nextcloud, ownCloud, Google Drive, Dropbox, OneDrive
- Flexible sync — one-way upload, one-way download, or two-way mirror
- Auto-sync — schedule by interval or trigger on Wi-Fi connect / device charge
- Conflict resolution — keep local, keep remote, keep newer, or keep both
- Secure — credentials encrypted with Android Keystore; biometric app-lock option
- No cloud dependency — runs fully on-device, no third-party relay
Install
- Download
SyncFlow.apkfrom the latest release - On your Android phone: Settings → Apps → Install unknown apps → allow your browser/file manager
- Open the downloaded APK and tap Install
- Open SyncFlow, go to Accounts tab → Add Account, pick your provider and sign in
- Tap + on the Syncs tab to create your first sync pair
Supported Providers
| Provider | Auth |
|---|---|
| WebDAV | Username + password |
| SFTP | Password or private key |
| SFTPGo | Username + password |
| Nextcloud | Username + password |
| ownCloud | Username + password |
| Google Drive | OAuth 2.0 (PKCE) |
| Dropbox | OAuth 2.0 (PKCE) |
| OneDrive | OAuth 2.0 (PKCE) |
Requirements
- Android 8.0+ (API 26)
- Storage permission (or SAF picker) for local folder access