Merge YAML CLI

merge-yaml-cli Plugin

Node.js CLI utility for merging YAML files. Merge multiple YAML files together using glob patterns.

Commands

YAML Merging

• merge-yaml merge files — Merge YAML files together

Utility

• merge-yaml _ _ — Passthrough to merge-yaml CLI

Usage Examples

• "Merge these YAML files"
• "Combine configurations"
• "Merge YAML with glob pattern"
• "Merge multiple config files"

Installation

npm install -g merge-yaml-cli

Examples

# Merge single file
merge-yaml merge files -i config.yaml -o merged.yaml

# Merge with glob pattern
merge-yaml merge files -i "configs/*.yml" -o merged.yml

# Merge includes directory
merge-yaml merge files -i example.yaml includes/*.yml -o merged.yml

# Any merge-yaml command with passthrough
merge-yaml _ _ -i "configs/*.yml" -o output.yml
merge-yaml _ _ -i base.yaml override.yaml -o merged.yaml

Key Features

• Glob patterns - Match multiple files
• Deep merge - Merges nested structures
• Override - Later files override earlier ones
• CLI and API - Use from command line or code
• Simple - Easy to use
• Flexible - Works with any YAML structure
• Configuration - Great for config management
• Cross-platform - Works everywhere

Merge Behavior

• Files are merged in order
• Later files override earlier ones
• Nested structures are deep merged
• Arrays are replaced (not merged)
• Comments are preserved from last file

Notes

• Last file takes precedence for conflicts
• Great for environment-specific configs
• Can be used in build processes
• Supports standard YAML syntax