Uranus YAML - Argo Workflow Template Navigator

A VS Code extension that enables intelligent Ctrl+Click navigation for Argo WorkflowTemplate references in YAML files. Navigate seamlessly between template definitions and their usages across your entire workspace.

✨ Features

• 🎯 Smart Context-Aware Navigation: Single Ctrl+Click does different actions based on where you click
• 📍 Go to Definition: Navigate from template references to their definitions
• 🔍 Find All References: Show all usages of templates and WorkflowTemplates
• ⚡ High Performance: Parallel processing, intelligent caching, and smart filtering
• 🎨 Intelligent Disambiguation: Handles multiple templates with same names correctly
• 🌐 Cross-Resource Support: Works with Workflows, WorkflowTemplates, CronWorkflows, etc.

🚀 How It Works

The extension uses context-aware navigation - a single Ctrl+Click performs different actions based on what you're clicking on:

Context 1: Template Reference → Go to Definition

When: Ctrl+Click on template references in usage files Action: Navigate to template definition

# In workflow.yaml - Ctrl+Click on "step1":
templateRef:
  name: tem-tem1
  template: step1  # ← Ctrl+Click here goes to definition in tem1.yaml

Context 2: Template Definition → Find All References

When: Ctrl+Click on template names in WorkflowTemplate definition files Action: Show all references to this template

# In tem1.yaml - Ctrl+Click on "step1":
spec:
  templates:
    - name: step1  # ← Ctrl+Click here shows all references
      container:
        image: alpine

Context 3: WorkflowTemplate Name → Find All References

When: Ctrl+Click on WorkflowTemplate names in metadata section Action: Show all references to this WorkflowTemplate

# In tem1.yaml - Ctrl+Click on "tem-tem1":
apiVersion: argoproj.io/v1alpha1
kind: WorkflowTemplate
metadata:
  name: tem-tem1  # ← Ctrl+Click here shows all WorkflowTemplate references
spec:
  templates:
    - name: step1

🧪 Testing & Examples

Example Files Structure

test-files/
├── tem1.yaml                    # WorkflowTemplate with step1, step2
├── workflow.yaml                # Workflow referencing tem1
├── multiple-templates.yaml      # Multiple WorkflowTemplates with overlapping names
├── composite-template.yaml      # WorkflowTemplate using other templates
├── cronworkflow.yaml           # CronWorkflow referencing templates
└── ...

Test Cases

Test Case 1: Go to Definition

1. Open workflow.yaml
2. Ctrl+Click on step1 in template: step1
3. Expected: Navigate to tem1.yaml line 7 (- name: step1)

Test Case 2: Find Template References

1. Open tem1.yaml
2. Ctrl+Click on step1 in - name: step1
3. Expected: Shows references in:
   • workflow.yaml
   • cronworkflow.yaml
   • composite-template.yaml

Test Case 3: Find WorkflowTemplate References

1. Open tem1.yaml
2. Ctrl+Click on tem-tem1 in name: tem-tem1
3. Expected: Shows all WorkflowTemplate references across workspace

Test Case 4: Disambiguation

1. Open complex-workflow.yaml
2. Multiple WorkflowTemplates have step1 templates
3. Ctrl+Click correctly uses templateRef.name to find the right template

🛠️ Development

Setup

# Install dependencies
npm install

# Compile TypeScript
npm run compile

# Watch for changes during development
npm run watch

Testing the Extension

1. Launch Extension Development Host: Press F5 in VS Code
2. Open Test Files: Open the test-files folder in the new VS Code window
3. Test Navigation: Try Ctrl+Click on different template names and references
4. Check Console: Open Developer Tools (Help → Toggle Developer Tools) for debug logs

Architecture

src/
├── extension.ts                 # Extension entry point
├── providers/
│   ├── argoTemplateDefinitionProvider.ts  # Main navigation logic
│   └── argoTemplateReferenceProvider.ts   # Reference provider (backup)
├── services/
│   ├── templateSearchService.ts           # Search logic
│   ├── fileSystemService.ts              # File operations
│   └── workspaceCacheService.ts          # Caching
└── types/
    └── index.ts                          # Type definitions

🎯 Key Features in Detail

Smart Context Detection

The extension automatically detects:

• Template References: templateRef.template usage
• Template Definitions: - name: in templates section
• WorkflowTemplate Names: metadata.name in WorkflowTemplate files
• WorkflowTemplate References: templateRef.name and workflowTemplateRef.name

Performance Optimizations

• Parallel Processing: Multiple files processed concurrently
• Intelligent Caching: File contents cached with auto-invalidation (30s timeout)
• Smart Filtering: Automatically skips irrelevant directories (node_modules, .git, etc.)
• Cancellation Support: Long operations can be cancelled for responsive UI

Disambiguation Logic

When multiple WorkflowTemplates contain templates with the same name:

1. Extension identifies the templateRef.name (WorkflowTemplate name)
2. Searches specifically within that WorkflowTemplate
3. Locates the correct template definition
4. Navigates to the exact line

📋 Requirements

• VS Code 1.80.0 or higher
• YAML language support (usually built-in)
• Files must be in a workspace folder

🐛 Troubleshooting

Common Issues

Extension not working?

• Check that extension is activated (look for "Uranus YAML extension activated" message)
• Ensure you're in a .yaml file (check bottom right corner shows "YAML")
• Try clicking directly on the template name, not surrounding whitespace

No results found?

• Verify YAML structure is correct (proper indentation)
• Check that WorkflowTemplate and template names match exactly
• Look for typos in template names

Performance issues?

• Large workspaces may take longer to search
• Check VS Code Developer Console for error messages
• Try reloading the window (Ctrl+R)

Debug Mode

1. Open VS Code Developer Console: Help → Toggle Developer Tools → Console tab
2. Look for ArgoTemplateDefinitionProvider and TemplateSearchService logs
3. Messages show what the extension is detecting and searching for

🔄 Version History

v0.0.1 - Current

• ✅ Context-aware Ctrl+Click navigation
• ✅ Go to Definition for template references
• ✅ Find All References for template definitions
• ✅ Find All References for WorkflowTemplate names
• ✅ Smart disambiguation for same-named templates
• ✅ High-performance parallel search with caching
• ✅ Support for Workflows, WorkflowTemplates, CronWorkflows

🤝 Contributing

This extension provides a foundation for Argo Workflow development productivity. The codebase is structured for easy extension and maintenance.

Key Extension Points

• New Resource Types: Add support for other Argo resources
• Enhanced Search: Improve search algorithms and filtering
• UI Improvements: Add status indicators, progress bars, etc.
• Additional Features: Hover information, auto-completion, etc.

---

Enjoy seamless Argo Workflow development! 🚀 templates: - name: step1

## 📖 Usage

1. **Open** any YAML file containing Argo Workflow definitions
2. **Ctrl+Click** on any template or WorkflowTemplate name
3. **Let the extension decide** what action to take based on context:
   - From references → Navigate to definition
   - From definitions → Show all references

### Example Scenarios

**Navigate to WorkflowTemplate Definition**:
```yaml
apiVersion: argoproj.io/v1alpha1
kind: Workflow
spec:
  workflowTemplateRef:
    name: my-template  # Ctrl+Click → Go to WorkflowTemplate

Navigate to Specific Template:

apiVersion: argoproj.io/v1alpha1
kind: Workflow
spec:
  templates:
    - name: main
      steps:
        - - name: call-step
            templateRef:
              name: tem-tem1
              template: step1  # Ctrl+Click → Go to template definition

Find All References:

# In WorkflowTemplate file
apiVersion: argoproj.io/v1alpha1
kind: WorkflowTemplate
metadata:
  name: tem-tem1      # Ctrl+Click → Show all WorkflowTemplate references
spec:
  templates:
    - name: step1      # Ctrl+Click → Show all template references
      container:
        image: alpine

🧪 Testing

Quick Test

1. Launch Extension: Press F5 in VS Code
2. Open Test Files: Navigate to test-files folder in the new window
3. Try Navigation:
   • Open workflow.yaml → Ctrl+Click on step1 → Should navigate to tem1.yaml
   • Open tem1.yaml → Ctrl+Click on step1 → Should show references panel
   • Open tem1.yaml → Ctrl+Click on tem-tem1 → Should show WorkflowTemplate references

Test Files Included

• tem1.yaml - Simple WorkflowTemplate with templates
• workflow.yaml - Basic workflow using templates
• cronworkflow.yaml - Scheduled workflow
• multiple-templates.yaml - Multiple WorkflowTemplates with overlapping names
• composite-template.yaml - WorkflowTemplate using other templates
• Additional test files for comprehensive coverage

⚡ Performance Features

• Parallel Processing: Multiple files processed concurrently
• Intelligent Caching: File contents cached with auto-invalidation
• Smart Filtering: Automatically skips irrelevant directories (node_modules, .git, etc.)
• Cancellation Support: Long operations can be cancelled for responsive UI

🛠️ Development

# Install dependencies
npm install

# Compile TypeScript
npm run compile

# Watch for changes
npm run watch

# Test extension
# Press F5 in VS Code to launch Extension Development Host

📋 Requirements

• VS Code 1.80.0 or higher
• YAML files with proper Argo Workflow structure
• Workspace with YAML files containing WorkflowTemplate definitions

💡 Tips

• Context Detection: The extension automatically detects whether you're clicking on a reference or definition
• Disambiguation: When multiple WorkflowTemplates have templates with the same name, the extension uses templateRef.name to find the correct one
• Cross-File Search: Searches across all YAML files in your workspace
• Error Handling: Shows informative messages when templates or references aren't found

🏗️ Architecture

• ArgoTemplateDefinitionProvider: Main provider handling Ctrl+Click navigation
• TemplateSearchService: Core search logic with caching and parallel processing
• FileSystemService: File operations and YAML file discovery
• Smart Context Detection: Determines appropriate action based on cursor position

---