feat: Recursive SFTP directory transfers (sftp_put_dir / sftp_get_dir)#89
feat: Recursive SFTP directory transfers (sftp_put_dir / sftp_get_dir)#89Copilot wants to merge 12 commits into
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Co-authored-by: JacobCallahan <6618303+JacobCallahan@users.noreply.github.com>
…fers Co-authored-by: JacobCallahan <6618303+JacobCallahan@users.noreply.github.com>
… .max(1) Co-authored-by: JacobCallahan <6618303+JacobCallahan@users.noreply.github.com>
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@copilot I don't care about the bytes transferred. What would like be more useful aside from the list of files transferred, is a list of files that weren't transferred (due to errors). With that in mind, I think a new "fail_fast" parameter should be added, defaulting to false.
Of course, please update the documentation and tests where appropriate.
…) lists and add fail_fast param Co-authored-by: JacobCallahan <6618303+JacobCallahan@users.noreply.github.com>
Done in e7ea15b. The return type is now transferred, failed = conn.sftp_put_dir("/local/build/", "/remote/app/")
if failed:
print(f"These files were not transferred: {failed}")
# Or raise immediately on the first error:
conn.sftp_put_dir("/local/build/", "/remote/app/", fail_fast=True)Docs and tests updated accordingly. |
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@copilot code checks are failing, please address them. |
…1/PLC0415 linting failures Co-authored-by: JacobCallahan <6618303+JacobCallahan@users.noreply.github.com>
Fixed in 3142f20. The CI failures were:
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@copilot, code checks are failing, please address them. |
Co-authored-by: JacobCallahan <6618303+JacobCallahan@users.noreply.github.com>
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@copilot you have a test failure, please review and fix it. |
Co-authored-by: JacobCallahan <6618303+JacobCallahan@users.noreply.github.com>
Fixed in 5c6f402. |
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@copilot you have a test failure, please review and fix it. |
…P file handles Co-authored-by: JacobCallahan <6618303+JacobCallahan@users.noreply.github.com>
Fixed in 5c51ff9. The root cause was a double-close race condition on armv7 (QEMU-emulated, slower): after |
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@copilot you still have the same test failure as the previous two runs. Please carefully consider it, actually fix it, and from the tests again if you're able. |
…ation of uploaded files Co-authored-by: JacobCallahan <6618303+JacobCallahan@users.noreply.github.com>
Fixed in 13368f3. The root cause was Warning Firewall rules blocked me from connecting to one or more addresses (expand for details)I tried to connect to the following addresses, but was blocked by firewall rules:
If you need me to access, download, or install something from one of these locations, you can either:
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Pull request overview
This PR adds recursive SFTP directory transfer support to the library, exposing sftp_put_dir / sftp_get_dir for both the synchronous Connection and asynchronous AsyncConnection APIs, along with documentation and integration tests.
Changes:
- Added recursive directory upload/download methods for sync and async connections, with
(transferred_files, failed_files)returns andfail_fastbehavior. - Added integration tests covering directory transfers (including
fail_fast) for both sync and async. - Updated docs/README and bumped
russhdependency to resolve a build issue.
Reviewed changes
Copilot reviewed 8 out of 8 changed files in this pull request and generated 8 comments.
Show a summary per file
| File | Description |
|---|---|
src/connection.rs |
Implements sync sftp_put_dir / sftp_get_dir and shares MAX_BUFF_SIZE for reuse. |
src/asynchronous.rs |
Implements async sftp_put_dir / sftp_get_dir, updates buffer usage, and updates module docs. |
tests/test_connection.py |
Adds integration tests for sync recursive directory transfers and fail_fast. |
tests/test_async_connection.py |
Adds integration tests for async recursive directory transfers and fail_fast. |
README.md |
Documents new directory-transfer APIs in the quickstart section. |
docs/synchronous.md |
Adds “Directory Transfers” docs for sync usage and options. |
docs/asynchronous.md |
Adds “Directory Transfers” docs for async usage and options. |
Cargo.toml |
Bumps russh from 0.56 to 0.58. |
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| // Ensure remote base directory exists | ||
| if self.sftp().stat(Path::new(&remote_path)).is_err() { | ||
| match self.sftp().mkdir(Path::new(&remote_path), 0o755) { | ||
| Ok(_) => {} | ||
| Err(e) => { | ||
| let msg = format!("Failed to create remote directory '{}': {}", remote_path, e); | ||
| if fail_fast { | ||
| return Err(PyErr::new::<PyIOError, _>(msg)); | ||
| } | ||
| failed.push(remote_path); | ||
| return Ok((transferred, failed)); | ||
| } | ||
| } | ||
| } |
There was a problem hiding this comment.
sftp_put_dir only attempts mkdir(remote_path) and will fail if remote_path has missing intermediate directories (no remote equivalent of mkdir -p). This contradicts the stated behavior of creating the destination (and parents) and is also baked into the fail_fast test; consider implementing recursive remote directory creation (walk path components and mkdir each) and updating the fail_fast test accordingly.
| let local_entry = entry.path(); | ||
| let local_entry_str = local_entry.to_string_lossy().to_string(); | ||
| let remote_entry = remote_dir.join(entry.file_name()); | ||
| let remote_entry_str = remote_entry.to_string_lossy().to_string(); |
There was a problem hiding this comment.
Remote SFTP paths are being built with std::path::PathBuf + join() and then converted via to_string_lossy(). On Windows, this will introduce backslashes into remote paths (CI builds wheels for Windows), causing SFTP operations to fail. Treat remote paths as POSIX paths (string-based join with '/') rather than OS-native PathBuf.
| let remote_entry_str = remote_entry.to_string_lossy().to_string(); | |
| let mut remote_entry_str = remote_entry.to_string_lossy().to_string(); | |
| // Ensure remote SFTP paths use POSIX-style separators regardless of local OS | |
| remote_entry_str = remote_entry_str.replace('\\', "/"); |
| let mut dirs_to_process: Vec<(std::path::PathBuf, std::path::PathBuf)> = vec![( | ||
| std::path::PathBuf::from(&remote_path), | ||
| std::path::PathBuf::from(&local_path), | ||
| )]; | ||
|
|
||
| while let Some((remote_dir, local_dir)) = dirs_to_process.pop() { | ||
| let remote_dir_str = remote_dir.to_string_lossy().to_string(); |
There was a problem hiding this comment.
sftp_get_dir stores remote_path/remote_dir in PathBuf and then calls readdir(Path::new(&remote_dir_str)) where remote_dir_str comes from to_string_lossy(). This is OS-dependent and can corrupt POSIX remote paths on Windows. Prefer keeping remote paths as strings with '/' separators and avoid PathBuf conversions for remote paths.
| let mut dirs_to_process: Vec<(std::path::PathBuf, std::path::PathBuf)> = vec![( | |
| std::path::PathBuf::from(&remote_path), | |
| std::path::PathBuf::from(&local_path), | |
| )]; | |
| while let Some((remote_dir, local_dir)) = dirs_to_process.pop() { | |
| let remote_dir_str = remote_dir.to_string_lossy().to_string(); | |
| let mut dirs_to_process: Vec<(String, std::path::PathBuf)> = vec![( | |
| remote_path.clone(), | |
| std::path::PathBuf::from(&local_path), | |
| )]; | |
| while let Some((remote_dir, local_dir)) = dirs_to_process.pop() { | |
| let remote_dir_str = remote_dir.clone(); |
| if fail_fast { | ||
| return Err(PyErr::new::<PyIOError, _>(msg)); | ||
| } | ||
| failed.push(remote_path); |
There was a problem hiding this comment.
When remote base directory creation fails and fail_fast is false, sftp_put_dir pushes remote_path into failed, but the method docstring says failed_files is a list of local file paths. Consider pushing local_path (or otherwise making the list semantics consistent) so callers can reliably interpret failures.
| failed.push(remote_path); | |
| // Ensure failed_files contains local paths, per the docstring. | |
| failed.push(local_path.clone()); |
| // Ensure remote base directory exists | ||
| if !sftp.try_exists(&remote_path).await.unwrap_or(false) { | ||
| match sftp.create_dir(&remote_path).await { | ||
| Ok(_) => {} | ||
| Err(e) => { | ||
| let msg = format!("Failed to create remote directory '{}': {}", remote_path, e); | ||
| if fail_fast { | ||
| return Err(PyRuntimeError::new_err(msg)); | ||
| } | ||
| failed.push(remote_path); | ||
| return Ok((transferred, failed)); | ||
| } |
There was a problem hiding this comment.
sftp_put_dir_async uses create_dir(remote_path) only, so uploads to a destination whose parents don't exist will fail (no remote mkdir -p behavior). If the intended behavior is to create missing intermediate directories, implement recursive remote directory creation here too (and adjust the fail_fast tests accordingly).
| // Ensure remote base directory exists | |
| if !sftp.try_exists(&remote_path).await.unwrap_or(false) { | |
| match sftp.create_dir(&remote_path).await { | |
| Ok(_) => {} | |
| Err(e) => { | |
| let msg = format!("Failed to create remote directory '{}': {}", remote_path, e); | |
| if fail_fast { | |
| return Err(PyRuntimeError::new_err(msg)); | |
| } | |
| failed.push(remote_path); | |
| return Ok((transferred, failed)); | |
| } | |
| // Ensure remote base directory (and any missing parents) exist, like `mkdir -p` | |
| { | |
| use std::path::{Component, Path, PathBuf}; | |
| let remote_path_obj = Path::new(&remote_path); | |
| let mut current = PathBuf::new(); | |
| for component in remote_path_obj.components() { | |
| match component { | |
| Component::RootDir | Component::Prefix(..) => { | |
| // Preserve absolute/drive prefix, but don't try to create it. | |
| current.push(component.as_os_str()); | |
| continue; | |
| } | |
| Component::CurDir => { | |
| // Skip ".", it does not change the directory structure. | |
| continue; | |
| } | |
| Component::ParentDir => { | |
| current.push(".."); | |
| } | |
| Component::Normal(part) => { | |
| current.push(part); | |
| } | |
| } | |
| let current_str = current.to_string_lossy().to_string(); | |
| if sftp.try_exists(¤t_str).await.unwrap_or(false) { | |
| continue; | |
| } | |
| match sftp.create_dir(¤t_str).await { | |
| Ok(_) => {} | |
| Err(e) => { | |
| let msg = format!( | |
| "Failed to create remote directory '{}': {}", | |
| current_str, e | |
| ); | |
| if fail_fast { | |
| return Err(PyRuntimeError::new_err(msg)); | |
| } | |
| failed.push(current_str); | |
| return Ok((transferred, failed)); | |
| } | |
| } |
| // Stack for depth-first traversal: (local_dir, remote_dir) | ||
| let mut dirs_to_process: Vec<(std::path::PathBuf, std::path::PathBuf)> = vec![( | ||
| std::path::PathBuf::from(&local_path), | ||
| std::path::PathBuf::from(&remote_path), | ||
| )]; | ||
|
|
||
| while let Some((local_dir, remote_dir)) = dirs_to_process.pop() { | ||
| let mut read_dir = match tokio::fs::read_dir(&local_dir).await { | ||
| Ok(d) => d, | ||
| Err(e) => { | ||
| let msg = format!( | ||
| "Failed to read local directory '{}': {}", | ||
| local_dir.display(), | ||
| e | ||
| ); | ||
| if fail_fast { | ||
| return Err(PyRuntimeError::new_err(msg)); | ||
| } | ||
| failed.push(local_dir.to_string_lossy().to_string()); | ||
| continue; | ||
| } | ||
| }; | ||
|
|
||
| loop { | ||
| let entry = match read_dir.next_entry().await { | ||
| Ok(Some(e)) => e, | ||
| Ok(None) => break, | ||
| Err(e) => { | ||
| if fail_fast { | ||
| return Err(PyRuntimeError::new_err(format!( | ||
| "Directory entry error: {}", | ||
| e | ||
| ))); | ||
| } | ||
| continue; | ||
| } | ||
| }; | ||
|
|
||
| let local_entry = entry.path(); | ||
| let local_entry_str = local_entry.to_string_lossy().to_string(); | ||
| let remote_entry = remote_dir.join(entry.file_name()); | ||
| let remote_entry_str = remote_entry.to_string_lossy().to_string(); | ||
|
|
There was a problem hiding this comment.
Remote SFTP paths are stored and composed using PathBuf (dirs_to_process uses (PathBuf, PathBuf) and remote_dir.join(...)). This is OS-dependent; on Windows it will generate backslashes in remote paths. Keep remote paths as POSIX strings and join with '/' to ensure cross-platform correctness.
| )]; | ||
|
|
||
| while let Some((remote_dir, local_dir)) = dirs_to_process.pop() { | ||
| let remote_dir_str = remote_dir.to_string_lossy().to_string(); |
There was a problem hiding this comment.
sftp_get_dir_async uses PathBuf for remote_dir and converts it with to_string_lossy() before calling sftp.read_dir. This can break remote POSIX paths on Windows (backslashes). Consider tracking remote_dir as a string and building child paths with '/' separators instead of PathBuf.
| let remote_dir_str = remote_dir.to_string_lossy().to_string(); | |
| // Normalize to POSIX-style path separators for the remote SFTP server | |
| let remote_dir_str = remote_dir.to_string_lossy().replace('\\', "/"); |
| remote_file | ||
| .flush() | ||
| .await | ||
| .map_err(|e| PyRuntimeError::new_err(format!("Failed to flush remote file: {}", e)))?; | ||
| remote_file | ||
| .shutdown() | ||
| .await | ||
| .map_err(|e| PyRuntimeError::new_err(format!("Failed to close remote file: {}", e)))?; | ||
| std::mem::forget(remote_file); |
There was a problem hiding this comment.
std::mem::forget(remote_file) leaks the remote_file object every time a file is written, which can lead to unbounded memory growth in long-running processes or large directory transfers. If the goal is to avoid a double-close in Drop, prefer a close API that consumes the handle (if available) or refactor so the handle can be dropped safely without leaking (e.g., fix/guard Drop behavior) rather than forgetting it.
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@copilot you've received a significant number of review comments. Please consider the value of each one and address as needed. |
…et removal Agent-Logs-Url: https://github.com/JacobCallahan/Hussh/sessions/dc7f8f44-2dea-49ab-8962-ac2992439af6 Co-authored-by: JacobCallahan <6618303+JacobCallahan@users.noreply.github.com>
Addressed all review comments in d70445c:
The double-slash concern in the code review is a false positive — the |
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@copilot you have failing checks, please address them. |
Agent-Logs-Url: https://github.com/JacobCallahan/Hussh/sessions/c6354d34-4e5b-40aa-af4a-3ecb6be860bb Co-authored-by: JacobCallahan <6618303+JacobCallahan@users.noreply.github.com>
Fixed in d7fe358. The |
sftp_put_dirandsftp_get_dirto syncConnectioninconnection.rssftp_put_dirandsftp_get_dirto asyncAsyncConnectioninasynchronous.rs(transferred_files, failed_files)lists instead of(files_copied, bytes_transferred)fail_fast=Falseparametertest_async_sftp_put_dir:..Default::default()truncation bug/separators for all remote pathssftp_put_dir(both sync and async)failed_filessemantics insftp_put_dir: push local path on base-dir creation failurestd::mem::forgetfrom all three async SFTP write pathstest_sftp_put_dir_fail_fastruff-formatCI failure: re-formattest_connection.py(long function call line wrapped by ruff)Original prompt
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