add scan command #90
add scan command #90
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Summary of Changes
Hello @dhth, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
This pull request significantly enhances the application's data processing capabilities by introducing a new scan command. This command empowers users to efficiently extract and save Kafka topic records to local files, offering various output formats and advanced filtering options. The changes also include a refactoring of the Kafka client initialization to support these new consumption patterns, making the system more robust and adaptable.
Highlights
- New Scan Command: Introduces a powerful new CLI command, "scan", allowing users to extract and save Kafka topic records to local files.
- Flexible Output Formats: The new scan command supports writing records to local files in various formats, including CSV, JSONL, and plain text, inferred from the output file extension.
- Advanced Record Filtering: Users can now filter Kafka records by key using regular expressions, providing more precise data extraction capabilities.
- Configurable Consumption Start: The scan command allows specifying a starting offset or timestamp for record consumption, enabling targeted data retrieval from Kafka topics.
- Kafka Client Refactoring: The internal Kafka client creation logic has been refactored using a builder pattern, improving flexibility and supporting different consumption scenarios (e.g., consumer group vs. direct offset/timestamp consumption).
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Code Review
This pull request introduces a new scan command, which is a valuable addition for inspecting Kafka topics. The refactoring of the Kafka client creation into a builder pattern is a great improvement for code maintainability. However, I've identified a few issues that need attention. There's a critical issue with conflicting command-line short flags that will prevent the application from starting. I also found a high-severity resource leak due to improper use of defer within a loop, and a few medium-severity issues related to an unused flag, duplicated code, and buggy reporting logic. I've provided detailed comments and suggestions to address these points.
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/gemini review |
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Code Review
This pull request introduces a new scan command, which is a great addition for inspecting topic contents. The implementation is well-structured, with good use of goroutines for progress display and signal handling for graceful shutdown. The refactoring to introduce a builder pattern for the Kafka client and to centralize file system logic significantly improves the codebase. I've identified a few critical issues related to error handling that could lead to silent data loss, particularly around file I/O and process interruption. I've also included some suggestions to improve code clarity and robustness. Overall, this is a solid contribution.
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/gemini review |
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Code Review
This pull request introduces a new scan command, which is a great addition for inspecting topic contents. The implementation is solid, with good handling of signals for graceful shutdown and a nice progress indicator. The refactoring in the internal/kafka package to use a builder pattern for the client is a significant improvement to the codebase.
My review includes a few suggestions to improve maintainability by reducing code duplication, and a couple of high-severity fixes related to error handling and potential data loss in the new scan functionality. Overall, great work on this feature.
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