Feature: Standardize Function

[rmottanet]

Control Flow with Explicit Return Statements

This pull request implements a comprehensive code quality improvement by adding explicit return statements to all shell functions throughout the project. This enhancement addresses SonarCloud maintainability warnings and establishes consistent control flow patterns across the entire codebase.

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Changes Implemented:

• Function Standardization: Updated every shell function to include explicit return statements

• Pattern Consistency: Applied uniform return patterns:

  • return 0 for successful function completion
  • return 1 (or appropriate exit code) for error conditions
  • Early returns for parameter validation and error handling

• Scope: Modified all functions across all modules:

  • GitHub Module: All 12+ scripts in src/github/
  • GitLab Module: All scripts in src/gitlab/
  • Bitbucket Module: All scripts in src/bitbucket/
  • Utilities: All helper functions in src/utils/
  • Core Functions: Main entry points and library functions

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Technical Details:

Before (Implicit Return)

function gh_repo_list() {
    # ... function logic
    # No explicit return statement
}

After (Explicit Return)

function gh_repo_list() {
    # Parameter validation with early return
    if [ -z "$1" ]; then
        echo "Error: Missing parameter"
        return 1
    fi
    
    # ... function logic
    
    # Explicit successful return
    return 0
}

Patterns Applied:

1. Main Functions: Always end with return 0 (success) or appropriate error code
2. Helper Functions: Return values for conditional checking in parent functions
3. Validation Functions: Return boolean values (0=true, 1=false) for if statements
4. Error Propagation: Consistent error code returns through function chains

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Benefits:

1. Improved Code Clarity

• Explicit returns document the function's exit points
• Makes control flow immediately visible to developers
• Reduces mental overhead when reading complex scripts

2. Enhanced Maintainability

• Predictable function behavior simplifies debugging
• Standardized patterns make code more reviewable
• Facilitates future refactoring and testing

3. Better Error Handling

• Clear error propagation through return codes
• Consistent patterns for input validation
• Improved script robustness

4. SonarCloud Compliance

• Addresses S7682: Functions should end with explicit return statement
• Improves maintainability score in quality gate
• Demonstrates commitment to code quality standards

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Motivation:

While shell scripts often rely on implicit returns (the exit status of the last command), explicit return statements provide several key advantages:

1. Intent Communication: Makes the developer's intent clear about function completion
2. Debugging Aid: When stepping through code, explicit returns mark clear exit points
3. Consistency: Aligns with best practices from other programming languages
4. Future-Proofing: Prepares codebase for more complex control flows if needed

This refactoring follows shell scripting best practices as documented in:

• Google Shell Style Guide
• ShellCheck recommendations
• Industry-standard bash scripting patterns

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud