Refactor/goetl

[ccamel]

Adopt the teambenny/goetl framework to standardise the extraction process using a pipeline-based approach. This should ensures a more consistent and modular way of handling data extraction tasks in this tool.

Also add the (persistent) flag log_level for better control over logging verbosity.

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📥 Commits

Reviewing files that changed from the base of the PR and between f34cdf7 and 1cfc352.

⛔ Files ignored due to path filters (3)

• .golangci.yml is excluded by !**/*.yml
• go.mod is excluded by !**/*.mod
• go.sum is excluded by !**/*.sum, !**/*.sum

📒 Files selected for processing (10)

• cmd/delegators.go (1 hunks)
• cmd/root.go (2 hunks)
• pkg/delegators/extract.go (0 hunks)
• pkg/delegators/payload.go (1 hunks)
• pkg/delegators/pipeline.go (1 hunks)
• pkg/delegators/reader.go (1 hunks)
• pkg/delegators/record.go (0 hunks)
• pkg/delegators/writer.go (1 hunks)
• pkg/keeper/keeper.go (7 hunks)
• pkg/logger/logger.go (1 hunks)

Walkthrough

The pull request introduces a comprehensive refactoring of the delegators extraction process in the application. The changes involve creating a new pipeline-based mechanism for extracting delegator and chain information, replacing the previous direct extraction method. This includes introducing new packages and types for handling data processing, implementing robust error handling, and improving logging capabilities. The modifications span multiple files across the project, focusing on modularizing the extraction process and enhancing overall code structure.

Changes

File	Change Summary
cmd/delegators.go	Updated to use new pipeline mechanism for delegator extraction
cmd/root.go	Added logging configuration with new log level flag and persistent pre-run configuration
pkg/delegators/...	Major restructuring: - Removed extract.go - Added pipeline.go with new pipeline execution logic - Added reader.go with data reading capabilities - Added writer.go for CSV output - Added payload.go with new data structures
pkg/keeper/keeper.go	Enhanced resource management with new Close() method and io.Closer support
pkg/logger/logger.go	Implemented new ETL-specific logging mechanism

Sequence Diagram

sequenceDiagram
    participant CLI as CLI Command
    participant Pipeline as Delegators Pipeline
    participant Reader as Data Reader
    participant Writer as CSV Writer
    
    CLI Command->>Pipeline: Initialize Pipeline
    Pipeline->>Reader: Create Delegators Reader
    Pipeline->>Reader: Create Chain Reader
    Pipeline->>Writer: Create CSV Writers
    
    Reader->>Reader: Process Delegator Data
    Reader->>Writer: Write Delegator CSV
    
    Reader->>Reader: Process Chain Metadata
    Reader->>Writer: Write Chain CSV
    
    Pipeline->>Pipeline: Run Pipelines Concurrently
    
    alt Success
        Pipeline-->>CLI Command: Return Nil Error
    else Error
        Pipeline-->>CLI Command: Return Processing Error
    end

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[bot-anik]

🎉 This PR is included in version 1.0.0 🎉

The release is available on GitHub release

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