Add optional TLS support for the server using axum-server with the
tls-rustls feature. When --server-cert and --server-key are provided
(and tls feature is enabled), the server binds with TLS instead of
plain HTTP.
Changes:
- Add axum-server dependency with optional tls-rustls feature
- New 'tls' feature flag (independent of 'server')
- --server-cert/--server-key CLI args gated behind tls feature
- ServerConfig extended with cert_file/key_file fields
- Conditional TLS/HTTP binding in server mod.rs
- Fix PathBuf::to_str().unwrap() panic risk -> to_string_lossy()
- Update README.md and DESIGN.md with TLS documentation
Add client mode enabling the keep CLI to connect to a remote keep
server over HTTP. Local plugins (compression, meta, filters) run on
the client; the server stores/retrieves binary blobs.
Architecture:
- Client save uses 3-thread streaming pipeline: reader thread (stdin
→ tee/stdout → hash → compress), OS pipe, streamer thread (pipe →
chunked HTTP POST). Memory usage is O(PIPESIZE) regardless of data
size.
- Server accepts compress=false, meta=false, decompress=false query
params for granular control of server-side processing.
- Streaming body handling on server via async channel → sync reader
bridge (ChannelReader).
Key additions:
- src/client.rs: KeepClient with post_stream() for chunked upload
- src/modes/client/: save, get, list, info, delete, diff, status
- --client-url / KEEP_CLIENT_URL configuration
- --client-password / KEEP_CLIENT_PASSWORD for auth
- os_pipe dependency for zero-copy pipe streaming
Co-Authored-By: andrew/openrouter/hunter-alpha <noreply@opencode.ai>
