Shell Completion

Enable comprehensive tab completion for all xcsh commands, including domain names, operations, resource types, namespaces, and resource names.

Features

• Domain Completion: Complete all domain names (e.g., virtual, dns, waf)
• Operation Completion: Complete all operations (list, get, create, delete, status, patch, add-labels, remove-labels)
• Resource Type Completion: Complete resource types within each domain
• Namespace Completion: Dynamic completion of available namespaces from your API
• Resource Name Completion: Dynamic completion of resource names for get, delete, and status operations
• Label Key Completion: Common label key suggestions for add-labels and remove-labels operations
• Performance: 3-second timeout with 5-minute caching to prevent shell slowdown

Bash

# Current session
source <(xcsh completion bash)

# Permanent (Linux)
xcsh completion bash > /etc/bash_completion.d/xcsh

# Permanent (macOS with Homebrew)
xcsh completion bash > $(brew --prefix)/etc/bash_completion.d/xcsh

Zsh

# Enable completion system (if not already enabled)
echo "autoload -U compinit; compinit" >> ~/.zshrc

# Install completion
xcsh completion zsh > "${fpath[1]}/_xcsh"

Fish

xcsh completion fish > ~/.config/fish/completions/xcsh.fish

PowerShell

xcsh completion powershell | Out-String | Invoke-Expression

Usage Examples

Once completion is installed, use <TAB> to complete commands:

Domain Completion

# Complete domain names
xcsh v<TAB>              # Completes to: virtual, vpm_and_node_management
xcsh vi<TAB>             # Completes to: virtual
xcsh dn<TAB>             # Completes to: dns
xcsh wa<TAB>             # Completes to: waf

Operation Completion

# Complete operations
xcsh virtual <TAB>
# Suggests: list, get, create, delete, replace, apply, status, patch, add-labels, remove-labels

xcsh dns <TAB>
# Shows available operations

Resource Type Completion

# Complete resource types
xcsh virtual list <TAB>
# Completes to: http_loadbalancer, origin_pool, tcp_loadbalancer, udp_loadbalancer, etc.

xcsh dns get <TAB>
# Shows dns resource types like dns_zone, dns_domain

Namespace Completion

# Complete namespaces (requires API access)
xcsh virtual list http_loadbalancer -ns <TAB>
# Suggests: default, production, staging, etc. (from your tenant)

xcsh virtual get origin_pool example-pool -ns <TAB>
# Dynamic namespace completion for your specific namespace

Resource Name Completion

# Complete resource names (requires API access)
xcsh virtual get http_loadbalancer <TAB>
# Suggests: example-lb-1, prod-lb, staging-lb, etc. (from your namespace)

xcsh virtual delete origin_pool <TAB>
# Shows available origin pools to delete

Label Key Completion

# Complete label keys
xcsh virtual add-labels http_loadbalancer example-lb --label-key <TAB>
# Suggests: environment, application, owner, cost-center, tier, version

xcsh virtual add-labels http_loadbalancer example-lb -ns production --label-key <TAB>
# Common label keys

API Integration

Dynamic completions (namespaces and resource names) require API access:

# Set your API credentials
export F5XC_API_URL="https://your-tenant.console.ves.volterra.io"
export F5XC_API_TOKEN="your-api-token"

# Now namespace and resource name completion will work
xcsh virtual list http_loadbalancer -ns <TAB>  # Shows your namespaces
xcsh virtual get http_loadbalancer <TAB>       # Shows your resources

Troubleshooting

Completions not working after upgrade

Zsh caches completion functions in ~/.zcompdump* files. After upgrading xcsh, the stale cache may prevent new completions from loading.

Fix: Clear the cache and restart your shell:

rm -f ~/.zcompdump* && exec zsh

Completions not loading at all

Ensure the completion system is enabled in your ~/.zshrc:

autoload -Uz compinit && compinit

Then restart your shell or run:

source ~/.zshrc

Dynamic Completions Not Working

If namespace and resource name completions aren’t appearing:

Check API Credentials:

# Verify your API credentials are set
echo $F5XC_API_URL
echo $F5XC_API_TOKEN

# If not set, configure them
export F5XC_API_URL="https://your-tenant.console.ves.volterra.io"
export F5XC_API_TOKEN="your-api-token"

Check API Connectivity:

# Test API access
curl -s -H "Authorization: APIToken $F5XC_API_TOKEN" "$F5XC_API_URL/api/web/namespaces" | head

# If this fails, check your credentials and API URL

Completion Fallback:

If API access fails, completions gracefully fall back to common defaults:

• Namespaces: default, system
• Resource names: None (no fallback available without API)
• Other completions: Static completions work normally

This ensures your shell stays responsive even if the API is unavailable.

Performance Issues

Completions use caching with a 5-minute TTL to prevent performance issues:

Cache Details:

• Static completions (domains, operations, resource types): Instant
• Dynamic completions (namespaces, resource names): 3-second timeout, 5-minute cache
• Cache is per-shell session (new terminal = fresh cache)

If completions are slow:

1. Verify your API URL and token are correct
2. Check your network connectivity to the API
3. The 3-second timeout prevents blocking; if you see delays, it’s usually the API responding slowly