Struct DeletePipelineUseCase 

pub struct DeletePipelineUseCase { /* private fields */ }

Use case for deleting pipelines from the system.

This use case handles pipeline deletion with safety mechanisms to prevent accidental data loss. It supports both interactive mode (with confirmation) and force mode (for automation).

Responsibilities

• Look up pipeline by name in repository
• Display pipeline details for verification
• Prompt for user confirmation (unless force mode)
• Delete pipeline from repository
• Provide feedback on success or cancellation

Dependencies

• Pipeline Repository: For retrieving and deleting pipeline data

Example

let use_case = DeletePipelineUseCase::new(pipeline_repository);

// Interactive mode
match use_case.execute("test-pipeline".to_string(), false).await {
    Ok(()) => println!("Pipeline deleted or cancelled"),
    Err(e) => eprintln!("Failed to delete pipeline: {}", e),
}

Implementations

impl DeletePipelineUseCase

pub fn new(pipeline_repository: Arc<SqlitePipelineRepository>) -> Self

Creates a new Delete Pipeline use case.

Parameters

• pipeline_repository - Repository for accessing pipeline data

Returns

A new instance of DeletePipelineUseCase

pub async fn execute(&self, pipeline_name: String, force: bool) -> Result<()>

Executes the delete pipeline use case.

Deletes a pipeline from the system with optional confirmation prompt. In interactive mode, displays pipeline details and requires user confirmation before deletion. In force mode, deletes immediately without confirmation.

Parameters

• pipeline_name - Name of the pipeline to delete
• force - If true, bypass confirmation prompt (for automation)

Behavior

Interactive Mode (force = false):

1. Look up pipeline by name
2. Display pipeline details
3. Prompt user for confirmation (y/yes to proceed)
4. Delete if confirmed, cancel otherwise

Force Mode (force = true):

1. Look up pipeline by name
2. Display pipeline details
3. Delete immediately without confirmation

Returns

• Ok(()) - Pipeline deleted successfully or deletion cancelled
• Err(anyhow::Error) - Pipeline not found or deletion failed

Errors

Returns errors for:

• Pipeline not found with given name
• Repository connection failures
• Database deletion errors
• I/O errors reading user input (interactive mode)

Example Output (Interactive Mode)

=== Pipeline to Delete ===
Name: test-pipeline
ID: 01H2X3Y4Z5A6B7C8D9E0F1G2H3
Stages: 4
Created: 2025-10-05 14:30:00 UTC

Are you sure you want to delete pipeline 'test-pipeline'? [y/N]: y
✅ Pipeline 'test-pipeline' deleted successfully

Example Output (Force Mode)

=== Pipeline to Delete ===
Name: test-pipeline
ID: 01H2X3Y4Z5A6B7C8D9E0F1G2H3
Stages: 4
Created: 2025-10-05 14:30:00 UTC

✅ Pipeline 'test-pipeline' deleted successfully