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Refactor list components and fix lints #1162

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@Cerebrovinny Cerebrovinny commented Mar 21, 2025

what

Refactor list components for new lint standards

why

I will use this component in furter list components filter development and need to clean this up in order to reduce PR changes
Screenshot 2025-03-21 at 23 14 07
Screenshot 2025-03-21 at 23 14 26

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Summary by CodeRabbit

  • New Features

    • Enhanced error messaging now provides clearer, more specific feedback when issues arise during component listing.
    • Introduced distinct handling for retrieving components for specific selections as well as aggregating components across all stacks.
  • Bug Fixes

    • Improved error handling in test cases ensures that failures are caught immediately, enhancing test reliability.
  • Tests

    • Expanded test coverage for various scenarios related to stack components, ensuring comprehensive validation of functionality.

@Cerebrovinny Cerebrovinny added patch A minor, backward compatible change and removed size/s labels Mar 21, 2025
@Cerebrovinny Cerebrovinny requested review from osterman and aknysh March 21, 2025 23:15
@Cerebrovinny Cerebrovinny marked this pull request as ready for review March 21, 2025 23:17
@Cerebrovinny Cerebrovinny requested a review from a team as a code owner March 21, 2025 23:17
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coderabbitai bot commented Mar 21, 2025

📝 Walkthrough

Walkthrough

The changes in pkg/list/list_components.go introduce five new error variables and modify the function getStackComponents to return these specific errors. Two new helper functions—getComponentsForSpecificStack and processAllStacks—are added. These additions refactor the error handling and component retrieval logic, with FilterAndListComponents updated to delegate specific stack processing. Overall, the changes modularize the code and improve clarity in error reporting.

Changes

File Change Summary
pkg/list/list_components.go Added error variables (ErrParseStacks, ErrParseComponents, ErrParseTerraformComponents, ErrStackNotFound, ErrProcessStack), updated error handling in getStackComponents, and introduced two new functions: getComponentsForSpecificStack and processAllStacks.
pkg/list/list_components_test.go Updated error assertions in tests to use require.NoError, added new test functions for getStackComponents, getComponentsForSpecificStack, processAllStacks, and FilterAndListComponents, and changed slice comparison assertions to assert.ElementsMatch.

Sequence Diagram(s)

sequenceDiagram
    participant F as FilterAndListComponents
    participant G as getComponentsForSpecificStack
    participant P as processAllStacks
    participant S as StacksMap

    F->>G: Request components for specific stack
    alt Specific stack exists
        G->>S: Validate stack existence
        S-->>G: Return stack status
        G-->>F: Return components or error (using new error vars)
    else No specific stack
        F->>P: Process all stacks
        P->>S: Iterate through stacks
        S-->>P: Return components/skip invalid ones
        P-->>F: Return aggregated components
    end
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Suggested labels

minor


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Reviewing files that changed from the base of the PR and between 95f386f and 6fef279.

📒 Files selected for processing (1)
  • pkg/list/list_components_test.go (3 hunks)
🧰 Additional context used
🧬 Code Definitions (1)
pkg/list/list_components_test.go (1)
pkg/list/list_components.go (11) (11)
  • FilterAndListComponents (76-99)
  • components (64-64)
  • components (77-77)
  • getStackComponents (26-43)
  • ErrParseStacks (14-14)
  • ErrParseComponents (16-16)
  • ErrParseTerraformComponents (18-18)
  • getComponentsForSpecificStack (46-60)
  • ErrStackNotFound (20-20)
  • ErrProcessStack (22-22)
  • processAllStacks (63-73)
⏰ Context from checks skipped due to timeout of 90000ms (4)
  • GitHub Check: Acceptance Tests (macos-latest, macos)
  • GitHub Check: Acceptance Tests (windows-latest, windows)
  • GitHub Check: Acceptance Tests (ubuntu-latest, linux)
  • GitHub Check: Summary
🔇 Additional comments (9)
pkg/list/list_components_test.go (9)

4-8: Good addition of imports for improved error handling

Adding errors package and testify's require package is a solid improvement for better error handling and test flow control.


24-34: Strong improvement to test assertions

Replacing assert.Nil(t, err) with require.NoError(t, err) is a superior approach. The require functions will stop test execution if the assertion fails, preventing subsequent assertions from running with invalid state.


45-50: Good consistency in error handling strategy

You've consistently applied the improved error handling pattern, making the tests more robust.


52-59: Better slice comparison method

Using assert.ElementsMatch is more appropriate than the previous method since it allows comparing slices regardless of element order, which is exactly what you need when testing component lists.


62-102: Well-structured test for getStackComponents

This test thoroughly validates both the happy path and all possible error cases for getStackComponents. It makes good use of subtests for organization and proper error assertions.


104-149: Comprehensive test for getComponentsForSpecificStack

Your test covers all the important scenarios: successful retrieval, non-existent stack, and invalid stack structure. The error assertions correctly check both the error type and the error message content.


151-208: Thorough test cases for processAllStacks

Good job testing various combinations of valid and invalid stacks. This ensures the function handles mixed scenarios correctly by collecting components only from valid stacks while ignoring invalid ones.


210-269: Comprehensive tests for FilterAndListComponents

This test suite covers all scenarios for the main function: specific stack, all stacks, non-existent stack, nil stacks map, and empty stacks map. The error assertions are properly structured.


271-289: Good integration test with actual data

Adding an integration test that uses the actual configuration and stack data is a valuable addition. It ensures the refactored code works correctly with real-world data structures.

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Actionable comments posted: 0

🧹 Nitpick comments (1)
pkg/list/list_components.go (1)

62-73: Consider adding error logging in processAllStacks.

The function silently skips invalid stacks, which might hide underlying issues. Consider logging these errors or adding a debug option to surface these errors.

func processAllStacks(stacksMap map[string]any) []string {
	var components []string
	for stackName, stackData := range stacksMap {
		stackComponents, err := getStackComponents(stackData)
		if err != nil {
-			continue // Skip invalid stacks.
+			// Log error and continue
+			fmt.Printf("Warning: Skipping invalid stack %s: %v\n", stackName, err)
+			continue
		}
		components = append(components, stackComponents...)
	}
	return components
}
📜 Review details

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📥 Commits

Reviewing files that changed from the base of the PR and between 5b58700 and 95f386f.

📒 Files selected for processing (1)
  • pkg/list/list_components.go (1 hunks)
⏰ Context from checks skipped due to timeout of 90000ms (1)
  • GitHub Check: Summary
🔇 Additional comments (8)
pkg/list/list_components.go (8)

11-23: Good improvement in error handling with specific error variables.

The introduction of these specific error variables makes error handling more robust and explicit throughout the code. Following Go's conventions with "Err" prefix and providing clear documentation for each error type is a solid approach.


28-30: Clean error return using predefined error variable.

Using the new predefined error variable improves consistency. Good job simplifying from generic error messages.


33-35: Consistent error handling with predefined variable.

Updating to use the predefined error enhances maintainability and consistency with the rest of the code.


38-40: Consistent use of predefined error.

Same good improvement as previous error handling changes.


45-60: Well-structured new helper function with appropriate error wrapping.

The new helper function getComponentsForSpecificStack properly encapsulates the logic for extracting components from a specific stack. Good use of error wrapping to provide context.


80-86: Good delegation to helper function.

Extracting the specific stack handling to a dedicated function makes the code more modular and readable.


87-89: Clean delegation to processAllStacks.

Using the new helper function makes the code more modular and easier to maintain. The comment is slightly redundant given the function name but doesn't hurt readability.


91-94: Good organization of component post-processing.

Marking the section as component post-processing with a comment improves readability. The deduplication and sorting steps are clear.

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coderabbitai bot previously approved these changes Mar 21, 2025
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codecov bot commented Mar 21, 2025

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 25.87%. Comparing base (5b58700) to head (6fef279).

Additional details and impacted files
@@            Coverage Diff             @@
##             main    #1162      +/-   ##
==========================================
+ Coverage   25.74%   25.87%   +0.12%     
==========================================
  Files         179      179              
  Lines       20591    20603      +12     
==========================================
+ Hits         5301     5330      +29     
+ Misses      14443    14431      -12     
+ Partials      847      842       -5     
Flag Coverage Δ
unittests 25.87% <100.00%> (+0.12%) ⬆️

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