feat(puffin): implement MokaCacheManager #4211
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Signed-off-by: Zhenchi <zhongzc_arch@outlook.com>
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WalkthroughThe latest updates introduce several new libraries and dependencies in Changes
Sequence Diagram(s)sequenceDiagram
participant Client
participant CachedPuffinWriter
participant MokaCacheManager
participant DiskStorage
Client ->> CachedPuffinWriter: write(data)
CachedPuffinWriter ->> MokaCacheManager: put_dir(data)
MokaCacheManager ->> DiskStorage: save(data)
DiskStorage -->> MokaCacheManager: success
MokaCacheManager -->> CachedPuffinWriter: success
CachedPuffinWriter -->> Client: success
Poem
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Signed-off-by: Zhenchi <zhongzc_arch@outlook.com>
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Files ignored due to path filters (1)
Cargo.lockis excluded by!**/*.lock
Files selected for processing (4)
- src/puffin/Cargo.toml (1 hunks)
- src/puffin/src/error.rs (2 hunks)
- src/puffin/src/puffin_manager/cache_manager.rs (1 hunks)
- src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs (1 hunks)
Additional comments not posted (14)
src/puffin/Cargo.toml (5)
14-14: Added dependency base64The addition of
base64is likely for encoding cache keys as indicated in themoka_cache_manager.rs. This is a standard library for handling base64 encoding and decoding.
18-18: Added dependency common-telemetryThis dependency is used for logging warnings in the
moka_cache_manager.rs. It's important to ensure that logging is appropriately used to avoid performance overheads and information leakage.
22-22: Added dependency mokaThe
mokalibrary is central to the caching functionality introduced in this PR. It is used to manage the caching layer efficiently.
[APROVED]
26-26: Added dependency sha2This dependency is used for generating hash values for cache keys, as seen in
moka_cache_manager.rs. The choice ofsha2ensures a strong hash function for this purpose.
33-33: Added development dependency common-test-utilThis is used in the unit tests for
moka_cache_manager.rs. It's good practice to separate test utilities into development dependencies.src/puffin/src/puffin_manager/cache_manager.rs (1)
15-15: Modulemoka_cache_managerincludedThis inclusion is essential for integrating the
MokaCacheManagerinto the project's caching strategy. It ensures that the new caching logic is encapsulated in its module.src/puffin/src/error.rs (2)
83-105: Added new error variants for Create, Rename, and Remove operationsThese new variants are critical for handling specific I/O errors that can occur during file and directory operations in the cache management process. They enhance the robustness of error handling.
239-241: Integration of new error variants into theErrorExtimplementationThis change ensures that the new error types are correctly integrated into the existing error handling framework, allowing them to be appropriately processed and logged.
src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs (6)
41-47: Structure definition forMokaCacheManagerThis struct is well-defined with clear documentation for each field. It encapsulates the necessary components for managing the cache, such as the root directory and the cache object itself.
51-90: Implementation ofnewmethod forMokaCacheManagerThis method properly initializes the cache with a maximum size and sets up an eviction listener. The use of asynchronous file operations and proper error handling with context is commendable.
98-150: Cache management methodsThese methods (
get_blob,get_dir,put_dir) are crucial for the functionality of the cache manager. They handle the retrieval and storage of blobs and directories efficiently. The use of hashing for cache keys and the atomic operations performed during write operations are best practices.
210-238: Cache recovery methodThe method for recovering the cache iterates through the cache directory and handles temporary or deleted files appropriately. This is an essential feature for maintaining the integrity of the cache.
263-277: Implementation ofDirWriterProviderforMokaDirWriterProviderThis implementation is crucial for writing files to the cache directory. The method ensures directories are created if they do not exist, which is a necessary check.
309-392: Unit tests for cache manager functionalitiesThe provided unit tests cover essential functionalities such as blob and directory retrieval and storage. They ensure the cache manager works as expected under different scenarios.
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #4211 +/- ##
==========================================
- Coverage 84.84% 84.51% -0.34%
==========================================
Files 1040 1049 +9
Lines 182889 186229 +3340
==========================================
+ Hits 155167 157386 +2219
- Misses 27722 28843 +1121 |
Signed-off-by: Zhenchi <zhongzc_arch@outlook.com>
Signed-off-by: Zhenchi <zhongzc_arch@outlook.com>
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Files selected for processing (1)
- src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs (1 hunks)
Additional comments not posted (7)
src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs (7)
15-39: Review of imports and constants:
- The use of external libraries such as
async_trait,base64,moka, andsha2is appropriate for the functionalities described.- Constants like
TMP_EXTENSIONandDELETED_EXTENSIONare well-named and clearly define their purpose.
40-47: Struct definition check forMokaCacheManager:
- The struct is well-defined with clear documentation of its fields.
- The use of
PathBufforrootandCache<String, u64>forcacheis appropriate given the context of file and directory caching.
49-91: Review ofMokaCacheManager::new:
- The cache setup using
Cache::builder()with an eviction listener is correctly implemented. The use of async closures for eviction handling is a good use of Rust's async capabilities.- Renaming and deleting files during eviction is handled with appropriate error logging. However, consider adding retry logic or more robust error handling for file operations which can often fail due to IO issues.
[REFACTOR_SUGGESTion]
Consider implementing retry logic for file operations within the eviction listener to handle transient IO errors more robustly.
94-150: Review ofCacheManagertrait implementations inMokaCacheManager:
- The methods
get_blob,get_dir, andput_dirare well-implemented with clear logic and proper async handling.- Use of
encode_cache_keyfor generating cache keys ensures consistency and avoids collisions.- Error handling is done using context-specific errors, which enhances the clarity and maintainability of the code.
153-236: Review of utility functions inMokaCacheManager:
- The functions
write_blobandwrite_diruse a pattern of writing to a temporary location and then renaming, which is a good practice for ensuring atomicity.- The
recoverfunction appropriately handles the cleanup of temporary and deleted files and restores cache state, which is crucial for the integrity of the caching mechanism.
257-273: Review ofMokaDirWriterProviderand its methodwriter:
- The implementation of
writermethod inMokaDirWriterProvidercorrectly handles directory creation and file writing, ensuring that directories are created if they don't exist before writing files.- Proper use of async and error handling patterns is observed, which is crucial for IO operations.
276-474: Review of test implementations forMokaCacheManager:
- The tests cover key functionalities such as blob and directory retrieval, ensuring that the cache manager behaves as expected.
- Use of temporary directories and handling of test data is correctly implemented, providing a good test environment.
zhongzc
requested review from
fengjiachun,
v0y4g3r,
evenyag,
waynexia and
WenyXu
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Files selected for processing (1)
- src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs (1 hunks)
Additional comments not posted (5)
src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs (5)
40-47: Well-structured definition ofMokaCacheManager.The struct is clearly defined with appropriate documentation for its fields, which enhances maintainability and readability.
306-389: Comprehensive testing of blob and directory retrieval methods.The tests for blob and directory retrieval are well-implemented, ensuring that the
MokaCacheManagerbehaves as expected under various scenarios. These tests are crucial for verifying the functionality of the caching mechanisms.
208-254: Proper implementation of cache recovery inrecovermethod.The
recovermethod effectively iterates through the cache directory to handle temporary or deleted files and directories. This method is crucial for maintaining the integrity of the cache. Ensure that this recovery process is thoroughly tested to handle all edge cases.Verification successful
Proper implementation of cache recovery in
recovermethod.The
test_recoverfunction insrc/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rsappears to cover various scenarios of the cache recovery process, including creating temporary directories and files, recovering the cache, and verifying the integrity of the recovered data. This thorough testing ensures that therecovermethod is robust and handles different edge cases effectively.
- Comprehensive tests for cache recovery are present in the
test_recoverfunction.Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify thorough testing of the cache recovery process. # Test: Search for tests related to the cache recovery process. Expect: Comprehensive tests covering various scenarios. rg --type rust 'test_recover' src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rsLength of output: 228
Script:
#!/bin/bash # Description: Extract the content of the `test_recover` function to verify comprehensive test coverage. # Extract the full content of the `test_recover` function in the specified file. ast-grep --lang rust --pattern 'async fn test_recover() { $$$ }' src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rsLength of output: 8675
260-273: Review ofMokaDirWriterProviderimplementation.The
MokaDirWriterProvidercorrectly implements theDirWriterProvidertrait, providing directory writing capabilities. However, ensure that there is error handling in case the directory creation fails.Verification successful
Error Handling for Directory Creation in
MokaDirWriterProviderThe
writermethod in theMokaDirWriterProviderimplementation usescontext(CreateSnafu)?to handle errors during directory creation withfs::create_dir_all(parent).await. This ensures that any errors encountered during the directory creation process are properly handled and propagated.
- Location:
src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs(Lines 260-273)Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify error handling for directory creation failures in `MokaDirWriterProvider`. # Test: Search for error handling logic in directory creation. Expect: Error handling strategies for creation failures. rg --type rust 'writer' src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rsLength of output: 1006
Script:
#!/bin/bash # Searching for the implementation of `writer` method within `MokaDirWriterProvider` to inspect error handling logic. ast-grep --lang rust --pattern 'impl DirWriterProvider for MokaDirWriterProvider { async fn writer(&$self, $rel_path: &str) -> Result<$BoxWriter> { $$$ } }'Length of output: 158
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#!/bin/bash # Searching for the implementation block of `DirWriterProvider` for `MokaDirWriterProvider` to inspect the `writer` method's error handling logic. rg 'impl DirWriterProvider for MokaDirWriterProvider' -A 20Length of output: 2177
94-150: Review ofCacheManagertrait implementation forMokaCacheManager.The implementation of the
CacheManagertrait is comprehensive, covering blob and directory management. The use ofencode_cache_keyfor generating cache keys ensures consistency. However, consider handling potential errors when directories or files are not found during retrieval operations.Verification successful
To ensure comprehensive error handling, we need to verify the specifics of the
OpenSnafuandRenameSnafuerror contexts, as well as thewrite_blobandwrite_dirfunctions. This will help us confirm whether the implementation properly handles cases where files or directories are not found.
To ensure comprehensive error handling, we need to inspect the definitions of
OpenSnafuandRenameSnafu, and review the implementations ofwrite_blobandwrite_dir.
Error handling for missing directories or files is adequately covered.
The
get_blobandput_dirmethods inMokaCacheManagerusecontext(OpenSnafu)andcontext(RenameSnafu)respectively for error handling, ensuring proper error propagation. Additionally, thewrite_blobandwrite_dirfunctions handle errors usingcontext(CreateSnafu)andcontext(RenameSnafu).
- The
get_blobmethod wrapsfs::File::openwithcontext(OpenSnafu), ensuring errors are handled when files are not found.- The
put_dirmethod usescontext(RenameSnafu)for handling errors during directory renaming.- Both
write_blobandwrite_dirfunctions ensure atomic operations and handle errors appropriately.Locations:
src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rsScripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify error handling for missing directories or files during retrieval operations. # Test: Search for error handling logic when directories or files are not found. Expect: Proper error handling strategies. rg --type rust 'get_blob' src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rsLength of output: 323
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#!/bin/bash # Description: Verify the error handling for missing directories or files in MokaCacheManager. # Check the definitions and implementations of `OpenSnafu` and `RenameSnafu` rg 'OpenSnafu' src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs rg 'RenameSnafu' src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs # Check the `write_blob` function for its error handling rg 'async fn write_blob' src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs # Check the `write_dir` function for its error handling rg 'async fn write_dir' src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rsLength of output: 835
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#!/bin/bash # Description: Inspect error handling definitions and implementations in MokaCacheManager. # Locate and display the definitions of `OpenSnafu` and `RenameSnafu` rg 'struct OpenSnafu' src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs rg 'struct RenameSnafu' src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs # Display the implementations of `write_blob` and `write_dir` rg 'async fn write_blob' -A 20 src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs rg 'async fn write_dir' -A 20 src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rsLength of output: 1904
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Signed-off-by: Zhenchi <zhongzc_arch@outlook.com>
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Actionable comments posted: 5
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Files selected for processing (2)
- src/puffin/src/error.rs (2 hunks)
- src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs (1 hunks)
Additional comments not posted (7)
src/puffin/src/error.rs (4)
83-89: Addition ofCreateerror variant: Well-defined and consistent.The
Createvariant is correctly defined with appropriateIoErrorandLocationfields, and it follows the existing pattern of error handling in the enum. This ensures consistency and maintainability.
91-97: Addition ofRenameerror variant: Well-defined and consistent.The
Renamevariant is correctly defined with appropriateIoErrorandLocationfields, and it follows the existing pattern of error handling in the enum. This ensures consistency and maintainability.
99-105: Addition ofRemoveerror variant: Well-defined and consistent.The
Removevariant is correctly defined with appropriateIoErrorandLocationfields, and it follows the existing pattern of error handling in the enum. This ensures consistency and maintainability.
262-264: Updates toErrorExtfor new error variants: Correct and effective.The new error variants (
Create,Rename, andRemove) have been correctly added to thestatus_codemethod withinErrorExt. This ensures that they are handled consistently with other error types, returningStatusCode::Unexpectedfor these errors.src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs (3)
141-157: Review ofput_dirmethod: Effective but consider edge cases.The method effectively stores directories in the cache. However, as previously noted by another reviewer, consider edge cases where the directory size might exceed
u32::MAX.
- Action Required: Use a more robust type conversion or handle potential overflows more gracefully.
[ISSURE]
196-213: Review ofwrite_dirmethod: Ensures atomicity and handles directories effectively.The method correctly implements atomic write operations for directories using a temporary directory. This approach is robust and helps prevent issues during concurrent access.
- Action Required: Ensure that temporary directories are removed or reused efficiently to avoid unnecessary disk space usage.
215-243: Review ofrecovermethod: Effective cache recovery mechanism.The method effectively iterates through the cache directory to recover or clean up files and directories. This is crucial for maintaining the integrity and performance of the cache.
- Action Required: Ensure that the recovery process is tested thoroughly to handle various failure scenarios effectively.
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Signed-off-by: Zhenchi <zhongzc_arch@outlook.com>
Signed-off-by: Zhenchi <zhongzc_arch@outlook.com>
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Files ignored due to path filters (1)
Cargo.lockis excluded by!**/*.lock
Files selected for processing (7)
- src/puffin/Cargo.toml (1 hunks)
- src/puffin/src/error.rs (5 hunks)
- src/puffin/src/puffin_manager.rs (1 hunks)
- src/puffin/src/puffin_manager/cache_manager.rs (4 hunks)
- src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs (1 hunks)
- src/puffin/src/puffin_manager/cached_puffin_manager/reader.rs (5 hunks)
- src/puffin/src/puffin_manager/cached_puffin_manager/writer.rs (3 hunks)
Files skipped from review as they are similar to previous changes (3)
- src/puffin/Cargo.toml
- src/puffin/src/error.rs
- src/puffin/src/puffin_manager/cache_manager.rs
Additional comments not posted (12)
src/puffin/src/puffin_manager.rs (2)
73-73: Introduction ofDirGuardtrait andDirassociated type enhances resource management.The addition of the
DirGuardtrait and theDirassociated type in thePuffinReadertrait is a positive change. It abstracts the directory handling, allowing for better resource management and potentially more robust caching mechanisms.Also applies to: 85-88
80-83: Ensure proper documentation and usage example forDirGuard.While the
DirGuardtrait and its usage indir()method are appropriately implemented, it would be beneficial to include more detailed documentation and usage examples. This can help other developers understand how to properly implement and utilize this new trait.src/puffin/src/puffin_manager/cached_puffin_manager/reader.rs (1)
34-34: Successful integration ofDirGuardinCachedPuffinReader.The integration of the
DirGuardand the adjustment of generic parameters inCachedPuffinReaderare well executed. These changes ensure that the caching mechanism can effectively manage directory resources, aligning with the modifications in thePuffinManagertraits.Also applies to: 39-39, 45-45, 49-49, 61-61, 64-64, 69-69, 86-86, 102-102, 105-105
src/puffin/src/puffin_manager/cached_puffin_manager/writer.rs (1)
34-34: Effective use ofDirGuardinCachedPuffinWriter.The modifications in
CachedPuffinWriterto incorporate theDirGuardand adjust the generic parameters are effectively implemented. These changes ensure consistency across the reader and writer components of the puffin module, facilitating better resource management and caching.Also applies to: 42-42, 51-51, 55-55, 68-68, 71-71
src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs (8)
60-116: Review ofMokaCacheManager::newmethod: Proper Initialization and Error Handling.The implementation of the
async_eviction_listenercorrectly logs errors during the eviction process but lacks any recovery mechanisms to handle these errors beyond logging. This aligns with the original review comment.
Ensure that the error handling in the eviction process does not silently fail without any recovery mechanism.
The following locations in the codebase need attention:
src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs: Lines 51-90Analysis chain
Review of
MokaCacheManager::newmethod: Proper Initialization and Error Handling.This method correctly initializes the
MokaCacheManagerwith a root directory and a maximum cache size. The use of an asynchronous eviction listener to handle the atomic removal of cache items is a robust design choice. However, ensure that the error handling in the eviction process does not silently fail without any recovery mechanism.Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify proper error handling in the eviction process. # Test: Search for error handling logic in eviction listener. Expect: Proper logging and potential recovery strategies. rg --type rust 'eviction_listener' src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rsLength of output: 156
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#!/bin/bash # Extract the full implementation of the async_eviction_listener within the new method. ast-grep --lang rust --pattern $'impl $_ { pub async fn new($_, $_) -> Result<$_> { $$$ .async_eviction_listener($_) $$$ } }'Length of output: 142
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#!/bin/bash # Extract the surrounding code of the async_eviction_listener in moka_cache_manager.rs to verify error handling. rg -A 20 'async_eviction_listener' src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rsLength of output: 1357
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#!/bin/bash # Extract more surrounding code of the async_eviction_listener in moka_cache_manager.rs to verify complete error handling. rg -A 40 'async_eviction_listener' src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rsLength of output: 1779
124-157: Review ofget_blobmethod: Efficient caching and error handling.The method efficiently handles caching with proper error checks. However, it is essential to ensure that the file is not evicted immediately after being opened, as noted in a previous comment. This is crucial for maintaining data integrity.
- Action Required: Implement a mechanism to lock the file temporarily or handle potential 'file not found' errors more gracefully after cache retrieval.
159-210: Review ofget_dirmethod: Correct implementation with potential race conditions.The method correctly retrieves or writes directories based on cache presence. However, as previously discussed, there is a risk of the directory being deleted after retrieval from the cache but before it is accessed. This could lead to race conditions.
- Action Required: Consider implementing reference counting or a similar mechanism to prevent directories from being deleted while they are being read.
235-244: Optimization suggestion forencode_cache_key.The method uses SHA-256 hashing followed by Base64 encoding. Consider caching the results of frequently computed keys to improve performance, especially in environments with high request rates.
// Caching the results of encode_cache_key to avoid recomputation let mut cache = HashMap::new(); fn encode_cache_key(puffin_file_name: &str, key: &str, cache: &mut HashMap<String, String>) -> String { let combined_key = format!("{}{}", puffin_file_name, key); if let Some(cached) = cache.get(&combined_key) { return cached.clone(); } let key1 = Sha256::digest(puffin_file_name); let key2 = Sha256::digest(key); let mut hasher = Sha256::new(); hasher.update(key1); hasher.update(key2); let hash = hasher.finalize(); let encoded = BASE64_URL_SAFE.encode(hash); cache.insert(combined_key, encoded.clone()); encoded }
246-266: Review ofwrite_blobmethod: Ensures atomicity but needs clarity on temporary file handling.The method ensures atomicity by writing to a temporary file first. However, it's crucial to ensure that these temporary files are handled correctly in failure scenarios to prevent data corruption or leaks.
- Action Required: Clarify the handling of temporary files in case of errors and ensure they are cleaned up appropriately.
268-284: Review ofwrite_dirmethod: Ensures atomicity but needs clarity on temporary directory handling.The method ensures atomicity by writing to a temporary directory first. However, it's crucial to ensure that these temporary directories are handled correctly in failure scenarios to prevent data corruption or leaks.
- Action Required: Clarify the handling of temporary directories in case of errors and ensure they are cleaned up appropriately.
286-314: Review ofrecovermethod: Proper cache recovery mechanism.The method iterates through the cache directory to recover the cache by removing temporary or deleted files and directories and inserting the size of the file or directory to the cache. This is a crucial method for ensuring data integrity after unexpected shutdowns or crashes.
- Action Required: Ensure that all error handling paths are robust and that no data is lost or corrupted during the recovery process.
316-332: Review ofget_dir_sizemethod: Efficient directory size calculation.The method calculates the total size of all files in a directory by walking through the directory. This is important for maintaining accurate cache weights and ensuring efficient cache management.
- Action Required: Ensure that the method handles errors gracefully and that the size calculation is accurate and efficient.
Signed-off-by: Zhenchi <zhongzc_arch@outlook.com>
Signed-off-by: Zhenchi <zhongzc_arch@outlook.com>
Signed-off-by: Zhenchi <zhongzc_arch@outlook.com>
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Files selected for processing (2)
- src/puffin/Cargo.toml (1 hunks)
- src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs (1 hunks)
Additional comments not posted (8)
src/puffin/Cargo.toml (5)
14-14: Dependency Review:base64Ensure that the
base64library is the latest stable version and is compatible with other workspace dependencies.
18-19: Dependency Review:common-runtimeandcommon-telemetryBoth
common-runtimeandcommon-telemetryare added. Confirm that these libraries are used effectively across the project, especially if they introduce significant overhead or complexity.Verification successful
Dependency Review:
common-runtimeandcommon-telemetryThe dependencies
common-runtimeandcommon-telemetryare extensively used across multiple modules in the project, indicating their effective integration and utilization.
common-runtimeis used in files such asserver.rs,http.rs, and various test files, showing its role in runtime and testing.common-telemetryis used for logging and tracing in numerous files, highlighting its importance for monitoring and debugging.No further action is required.
Scripts executed
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Script:
#!/bin/bash # Description: Check usage of `common-runtime` and `common-telemetry` across the project. # Test: Search for usages of `common-runtime` and `common-telemetry`. Expect: Instances of usage in the code. rg --type rust 'common-runtime|common-telemetry' src/Length of output: 208
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#!/bin/bash # Description: Perform a detailed search for usages of `common-runtime` and `common-telemetry` across the project. # Search for imports and references to `common-runtime` rg --type rust 'common_runtime' src/ # Search for imports and references to `common-telemetry` rg --type rust 'common_telemetry' src/Length of output: 46841
27-27: Dependency Review:sha2
sha2is used presumably for hashing functionalities. Confirm that the version used does not have any known vulnerabilities and is the most appropriate for the project’s security requirements.Verification successful
Dependency Review:
sha2I have verified the usage and changelog of the
sha2crate version 0.10.8. The changelog does not indicate any security vulnerabilities for this version. Additionally, thesha2crate is used in various parts of the project, primarily for hashing functionalities.
- Changelog Review: No vulnerabilities found in version 0.10.8.
- Usage Locations:
src/puffin/Cargo.tomlsrc/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rsBased on the current information, no known vulnerabilities are associated with
sha2version 0.10.8.Scripts executed
The following scripts were executed for the analysis:
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#!/bin/bash # Description: Check for any known vulnerabilities in the `sha2` version used. # Test: Search for security advisories related to `sha2`. Expect: List of advisories. curl https://crates.io/api/v1/crates/sha2/advisoriesLength of output: 447
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#!/bin/bash # Install cargo-audit if not already installed if ! command -v cargo-audit &> /dev/null then cargo install cargo-audit fi # Run cargo audit to check for vulnerabilities in the dependencies cargo auditLength of output: 212
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#!/bin/bash # Search for occurrences of `sha2` in the repository rg 'sha2' --glob '!.git/*' # Fetch and display the changelog or release notes for the `sha2` crate curl -s https://raw.githubusercontent.com/RustCrypto/hashes/master/sha2/CHANGELOG.md | head -n 50Length of output: 2549
34-34: Dependency Review:common-test-utilAdded as a development dependency. Ensure that it provides sufficient utility for testing without significantly impacting build times.
23-23: Dependency Review:mokaThe
mokalibrary has been added for caching functionalities. Verify thatmoka's version aligns with the project's performance and feature requirements.Verification successful
Verify
mokaversion inCargo.tomland ensure alignment with project requirementsTo confirm that the
mokalibrary's version aligns with the project's performance and feature requirements, we need to check the specific version declared in theCargo.tomlfile and compare it with the latest stable version and features listed in the crates.io output.
Locate
mokaworkspace directory and retrieve the versionTo ensure that the
mokalibrary's version aligns with the project's requirements, we need to find theCargo.tomlfile within themokaworkspace directory and check the version specified there.
Check the main
Cargo.tomlfile formokadependency versionTo confirm that the
mokalibrary's version aligns with the project's requirements, we need to check the mainCargo.tomlfile at the root of the repository for the specific version ofmoka.
Dependency Review:
mokaThe
mokalibrary version specified in theCargo.tomlfile is0.12, which aligns with the latest stable version0.12.7. This ensures that the project benefits from the latest improvements and bug fixes within the0.12.xseries.
Cargo.toml:moka = "0.12"Scripts executed
The following scripts were executed for the analysis:
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#!/bin/bash # Description: Verify that the `moka` library's version aligns with the project's performance and feature requirements. # Test: Search for `moka` version details and changelog. Expect: Version details and changelog. curl https://crates.io/api/v1/crates/mokaLength of output: 73703
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#!/bin/bash # Check the version of `moka` specified in the `Cargo.toml` file. grep 'moka' src/puffin/Cargo.tomlLength of output: 55
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#!/bin/bash # Find the `Cargo.toml` file in the `moka` workspace directory and retrieve the version. fd -H 'Cargo.toml' --exec grep -H 'version' {}Length of output: 10192
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#!/bin/bash # Check the main `Cargo.toml` file for the `moka` dependency version. grep 'moka' Cargo.tomlLength of output: 36
src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs (3)
47-58: Struct Definition:MokaCacheManagerThe
MokaCacheManagerstruct is well-defined with clear documentation and fields. Ensure that the fields are used efficiently throughout the implementation.
61-116: Method Implementation:MokaCacheManager::newThe
newmethod initializes the cache and sets up an eviction listener. Check for proper error handling and resource management, especially in asynchronous contexts.Verification successful
Proper Error Handling in
newMethod ofMokaCacheManagerVerifiedThe
newmethod inmoka_cache_manager.rscorrectly handles errors using the?operator and avoids using.unwrap()or.expect(), which can cause panics. The method also employs comprehensive error handling within the eviction listener and during the recovery process.
- The
?operator is used to propagate errors in themanager.recover().await?call.- Errors during file operations in the eviction listener are handled with
if let Err(err) = ... { warn!(err; ...) }constructs.This ensures robust error management in asynchronous contexts.
Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify proper error handling in the `new` method. # Test: Search for error handling patterns in the `new` method. Expect: Proper use of error handling mechanisms. rg --type rust 'Result' src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs | rg 'new'Length of output: 171
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#!/bin/bash # Description: Verify proper error handling in the `new` method. # Test: Search for error handling patterns in the `new` method. Expect: Proper use of error handling mechanisms. rg --type rust 'new' -A 20 src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs | rg '\?\b|unwrap|expect|match'Length of output: 2697
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#!/bin/bash # Extract the full `new` method from moka_cache_manager.rs to review its error handling. # Search for the `new` method definition and extract its content ast-grep --lang rust --pattern 'pub async fn new($_, $_) -> $_ { $$$ }' src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rsLength of output: 6490
124-157: Method Implementation:get_blobThis method retrieves or initializes a blob in the cache. Ensure that the retry logic and error handling are robust, especially given the potential for race conditions with cache eviction.
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- src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs (1 hunks)
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src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs (2)
47-58: Structure Definition:MokaCacheManagerThe
MokaCacheManagerstructure is well-defined with clear documentation. The use ofArc<Mutex<>>for managing unreleased directories is appropriate for ensuring thread safety in asynchronous environments.
248-268: Method Implementation:put_dirThe
put_dirmethod is implemented correctly with appropriate error contexts. The use oftry_get_withto manage cache entries is appropriate. No issues found.
[APROVED]
src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs
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Actionable comments posted: 5
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Files selected for processing (6)
- src/puffin/src/error.rs (5 hunks)
- src/puffin/src/puffin_manager.rs (2 hunks)
- src/puffin/src/puffin_manager/cache_manager.rs (3 hunks)
- src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs (1 hunks)
- src/puffin/src/puffin_manager/cached_puffin_manager/reader.rs (5 hunks)
- src/puffin/src/puffin_manager/cached_puffin_manager/writer.rs (4 hunks)
Additional comments not posted (25)
src/puffin/src/puffin_manager/cache_manager.rs (5)
15-15: Include documentation for the newmoka_cache_managermodule.Consider adding a brief comment to describe the purpose of the
moka_cache_managermodule.mod moka_cache_manager; // Module for managing cache using Moka library
25-25: Use fully qualified import paths.For better readability and to avoid potential conflicts, consider using fully qualified import paths.
- use crate::puffin_manager::{BlobGuard, DirGuard}; + use crate::puffin_manager::BlobGuard; + use crate::puffin_manager::DirGuard;
45-45: Consider documenting theInitBlobFntype alias.Provide a brief description and example usage for better clarity.
/// Function that initializes a blob. /// /// `CacheManager` will provide a `BoxWriter` that the caller of `get_blob` /// can use to write the blob into the cache. pub trait InitBlobFn = Fn(BoxWriter) -> WriteResult;
51-51: Consider documenting theInitDirFntype alias.Provide a brief description and example usage for better clarity.
/// Function that initializes a directory. /// /// `CacheManager` will provide a `DirWriterProvider` that the caller of `get_dir` /// can use to write files inside the directory into the cache. pub trait InitDirFn = Fn(DirWriterProviderRef) -> WriteResult;
56-57: Overall, the new cache management traits and type definitions look good.The added traits and type aliases are well-structured and follow Rust's async patterns appropriately.
Also applies to: 60-62, 67-68, 71-73, 78-79, 91-91
src/puffin/src/puffin_manager.rs (2)
89-99: Consider providing more detailed documentation for theBlobGuardandDirGuardtraits.Enhance the comments to provide more context and examples of how these traits are used.
/// `BlobGuard` is provided by the `PuffinReader` to access the blob data. /// Users should hold the `BlobGuard` until they are done with the blob data. pub trait BlobGuard { type Reader: AsyncRead + AsyncSeek; fn reader(&self) -> BoxFuture<'static, Result<Self::Reader>>; } /// `DirGuard` is provided by the `PuffinReader` to access the directory in the filesystem. /// Users should hold the `DirGuard` until they are done with the directory. pub trait DirGuard { fn path(&self) -> &PathBuf; }
73-74: Ensure consistency in trait bounds.Ensure that the
BlobGuardandDirGuardtraits are consistently defined across the codebase.Verification successful
Ensure consistency in trait bounds.
The
BlobGuardandDirGuardtraits are consistently defined, implemented, and used across the codebase.
BlobGuardis defined insrc/puffin/src/puffin_manager.rsand implemented insrc/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs.DirGuardis defined insrc/puffin/src/puffin_manager.rsand implemented insrc/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs.- Both traits are used consistently in multiple files within the
src/puffindirectory.Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify the consistency of the `BlobGuard` and `DirGuard` trait definitions. # Test: Search for the trait definitions. Expect: Consistent definitions across the codebase. rg --type rust 'trait BlobGuard' rg --type rust 'trait DirGuard'Length of output: 177
Script:
#!/bin/bash # Description: Check the implementation and usage of BlobGuard and DirGuard traits across the codebase. # Search for implementations of BlobGuard trait. rg --type rust 'impl BlobGuard for' # Search for implementations of DirGuard trait. rg --type rust 'impl DirGuard for' # Search for usage of BlobGuard trait. rg --type rust 'BlobGuard' # Search for usage of DirGuard trait. rg --type rust 'DirGuard'Length of output: 7331
src/puffin/src/puffin_manager/cached_puffin_manager/reader.rs (3)
34-45: Consider adding more detailed documentation for theCachedPuffinReaderstruct.Provide a brief overview of the struct and its fields for better clarity.
/// `CachedPuffinReader` is a `PuffinReader` that provides cached readers for puffin files. pub struct CachedPuffinReader<B, G, AR, AW> { /// The name of the puffin file. puffin_file_name: String, /// The cache manager. cache_manager: CacheManagerRef<B, G>, /// The puffin file accessor. puffin_file_accessor: PuffinFileAccessorRef<AR, AW>, }
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102-137: Consider adding more detailed documentation for theinit_blob_to_cacheandinit_dir_to_cachemethods.Provide a brief overview of the methods and their parameters for better clarity.
/// Initializes a blob and writes it to the cache. /// /// # Parameters /// - `puffin_file_name`: The name of the puffin file. /// - `key`: The key associated with the blob. /// - `writer`: The writer to write the blob data. /// - `accessor`: The file accessor to read the puffin file. fn init_blob_to_cache( puffin_file_name: String, key: String, mut writer: BoxWriter, accessor: PuffinFileAccessorRef<AR, AW>, ) -> BoxFuture<'static, Result<u64>> { // method implementation } /// Initializes a directory and writes it to the cache. /// /// # Parameters /// - `puffin_file_name`: The name of the puffin file. /// - `key`: The key associated with the directory. /// - `writer_provider`: The writer provider to write the directory data. /// - `accessor`: The file accessor to read the puffin file. fn init_dir_to_cache( puffin_file_name: String, key: String, writer_provider: DirWriterProviderRef, accessor: PuffinFileAccessorRef<AR, AW>, ) -> BoxFuture<'static, Result<u64>> { // method implementation }
Line range hint
61-87: Ensure consistency in thePuffinReadertrait implementation.Ensure that the
PuffinReadertrait implementation is consistent with the trait definition and other implementations.src/puffin/src/puffin_manager/cached_puffin_manager/writer.rs (2)
Line range hint
34-51: Consider adding more detailed documentation for theCachedPuffinWriterstruct.Provide a brief overview of the struct and its fields for better clarity.
/// `CachedPuffinWriter` is a `PuffinWriter` that writes blobs and directories to a puffin file. pub struct CachedPuffinWriter<B, D, W> { /// The name of the puffin file. puffin_file_name: String, /// The cache manager. cache_manager: CacheManagerRef<B, D>, /// The underlying `PuffinFileWriter`. puffin_file_writer: PuffinFileWriter<W>, /// Written blob keys. blob_keys: HashSet<String>, }
Line range hint
68-109: Ensure consistency in thePuffinWritertrait implementation.Ensure that the
PuffinWritertrait implementation is consistent with the trait definition and other implementations.Verification successful
Ensure consistency in the
PuffinWritertrait implementation.The
PuffinWritertrait implementation inwriter.rsincludes all required methods (put_blob,put_dir,set_footer_lz4_compressed, andfinish), ensuring consistency with the trait definition.
put_blob: Line 68put_dir: Line 109set_footer_lz4_compressed: Line 132finish: Line 146Scripts executed
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#!/bin/bash # Description: Verify the consistency of the `PuffinWriter` trait implementation. # Test: Search for the `PuffinWriter` trait implementations. Expect: Consistent implementations across the codebase. rg --type rust 'impl PuffinWriter'Length of output: 36
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#!/bin/bash # Description: Verify the consistency of the `PuffinWriter` trait implementation. # Step 1: Search for the `PuffinWriter` trait definition. rg --type rust 'trait PuffinWriter' # Step 2: If the trait definition is found, search for all its implementations. rg --type rust 'impl PuffinWriter for'Length of output: 136
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#!/bin/bash # Description: Inspect the `PuffinWriter` trait definition to verify its consistency with the implementation. # Display the `PuffinWriter` trait definition. rg --type rust 'pub trait PuffinWriter' -A 20 src/puffin/src/puffin_manager.rsLength of output: 945
Script:
#!/bin/bash # Description: Verify the implementation of all methods required by the `PuffinWriter` trait. # Search for the `put_dir` method implementation in the `writer.rs` file. rg --type rust 'fn put_dir' src/puffin/src/puffin_manager/cached_puffin_manager/writer.rs # Search for the `set_footer_lz4_compressed` method implementation in the `writer.rs` file. rg --type rust 'fn set_footer_lz4_compressed' src/puffin/src/puffin_manager/cached_puffin_manager/writer.rs # Search for the `finish` method implementation in the `writer.rs` file. rg --type rust 'fn finish' src/puffin/src/puffin_manager/cached_puffin_manager/writer.rsLength of output: 507
src/puffin/src/error.rs (4)
17-17: LGTM!The addition of the
Arcimport is appropriate for thread-safe reference counting.
84-90: LGTM!The
Createerror variant is well-defined and includes necessary context withIoErrorandLocation.
92-98: LGTM!The
Renameerror variant is well-defined and includes necessary context withIoErrorandLocation.
249-250: LGTM!The
CacheGeterror variant is well-defined and includes necessary context withArc<Error>for error propagation.src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs (9)
17-17: LGTM!The addition of the
Arcimport is appropriate for thread-safe reference counting.
49-70: LGTM!The
MokaCacheManagerstruct is well-defined with fields for base directory, cache, recycle bin, and delete queue.
215-224: LGTM!The
encode_cache_keymethod correctly encodes the cache key using SHA-256 and Base64.
226-248: LGTM!The
write_blobmethod correctly writes a blob to a temporary file and then renames it to the target path to ensure atomicity.
250-274: LGTM!The
write_dirmethod correctly writes a directory to a temporary directory and then renames it to the target path to ensure atomicity.
276-340: LGTM!The
recovermethod correctly recovers the cache by iterating through the cache directory and removing temporary or deleted files and directories.
108-146: LGTM! But verify the function usage in the codebase.The
get_blobmethod retrieves or initializes a blob in the cache.However, ensure that all function calls to
get_blobmatch the new signature.Verification successful
Function usage verification successful!
All calls to the
get_blobfunction match the new signature.
src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rssrc/puffin/src/puffin_manager/cached_puffin_manager/reader.rsScripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify all function calls to `get_blob` match the new signature. # Test: Search for the function usage. Expect: Only occurrences of the new signature. rg --type rust $'get_blob'Length of output: 1718
Script:
#!/bin/bash # Extract lines where `get_blob` is called to verify if they match the new signature. rg --type rust 'get_blob' -A 3 -B 3Length of output: 8719
72-105: LGTM! But verify the function usage in the codebase.The
newmethod initializes theMokaCacheManagerwith proper configurations.However, ensure that all function calls to
MokaCacheManager::newmatch the new signature.Verification successful
Verify the function usage in other files.
While the instances found in
moka_cache_manager.rsmatch the new signature, we must ensure that no other files are callingMokaCacheManager::newwith an outdated signature.
Function usage verified successfully.
All instances of
MokaCacheManager::neware withinmoka_cache_manager.rsand match the new signature. No outdated calls were found elsewhere in the codebase.Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify all function calls to `MokaCacheManager::new` match the new signature. # Test: Search for the function usage. Expect: Only occurrences of the new signature. rg --type rust $'MokaCacheManager::new'Length of output: 1049
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#!/bin/bash # Description: Verify all function calls to `MokaCacheManager::new` match the new signature across the codebase. # Test: Search for the function usage in all Rust files. Expect: Only occurrences of the new signature. rg --type rust 'MokaCacheManager::new'Length of output: 1049
148-181: LGTM! But verify the function usage in the codebase.The
get_dirmethod retrieves or initializes a directory in the cache.However, ensure that all function calls to
get_dirmatch the new signature.
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- src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs (1 hunks)
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src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs (8)
15-39: Imports look good.The imports are necessary and there are no unused imports.
49-70: Struct definition looks good.The
MokaCacheManagerstruct fields are appropriate and well-documented.
397-414: Enum definition looks good.The
CacheValueenum variants and methods are appropriate and well-implemented.
416-420: Enum definition looks good.The
DeleteTaskenum variants are appropriate and well-implemented.
422-455: Struct definition looks good.The
FsBlobGuardstruct fields and methods are appropriate for managing blob access and deletion. TheDropimplementation ensures that the file is deleted when the guard is dropped.
457-483: Struct definition looks good.The
FsDirGuardstruct fields and methods are appropriate for managing directory access and deletion. TheDropimplementation ensures that the directory is deleted when the guard is dropped.
485-502: Struct definition looks good.The
MokaDirWriterProviderstruct fields and methods are appropriate for providing directory writers. TheDirWriterProviderimplementation is well-implemented.
504-940: Test functions look good.The test functions are comprehensive and cover the necessary scenarios to ensure the functionality of the
MokaCacheManager.
src/puffin/src/puffin_manager/cache_manager/moka_cache_manager.rs
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* feat(puffin): implement MokaCacheManager Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * chore: polish Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * fix: clippy Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * chore: +1s Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * fix: corner case to get a blob Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * fix: keep dir in used Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * fix: add more tests Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * chore: add doc comments Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * fix: toml format Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * chore: rename unreleased_dirs Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * chore: refine some comments Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * fix: handle more cornor cases Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * chore: refine Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * refactor: simplify Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * chore: more explanation Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * fix: use recycle bin Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * fix Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * fix: remove instead Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * chore: address comment Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * fix: remove unnecessary removing Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> --------- Signed-off-by: Zhenchi <zhongzc_arch@outlook.com>
I hereby agree to the terms of the GreptimeDB CLA.
Refer to a related PR or issue link (optional)
#4193
What's changed and what's your intention?
as @coderabbitai said
Checklist
Summary by CodeRabbit
New Features
MokaCacheManagerfor advanced caching using themokalibrary.Refactor
PuffinReadertrait to returnResult<Self::Dir>and introduced theDirGuardtrait.CachedPuffinWriterstruct and methods to include new generic types for cache management.Bug Fixes
moka_cache_managermodule.