CliForge

Dynamic CLI generation from OpenAPI specifications.

CliForge combines static branded binaries with dynamic spec loading to create professional, self-updating command-line tools from OpenAPI specifications.

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What is CliForge?

CliForge generates branded CLI tools that load OpenAPI specifications at runtime. This hybrid approach delivers professional, distributable binaries while maintaining the flexibility of dynamic spec loading.

Key Features:

• Hybrid architecture - Static branded binary + dynamic spec loading
• Self-updating - Security patches and config changes delivered seamlessly
• Zero code generation - No generated files in your repository
• OpenAPI-driven - Your spec is the single source of truth
• Configuration DSL - YAML-based configuration for branding and behavior
• XDG-compliant - Follows standard directory conventions

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Architecture

CliForge uses a tri-level separation model:

Binary Level:

• Embedded configuration and branding
• Self-update mechanism
• Runtime engine

API Level:

• OpenAPI spec loaded at runtime (cached 5min)
• Paths → Commands
• Operations → Subcommands
• Parameters → Flags

Behavioral Level:

• Authentication strategies
• Output formatting
• Rate limiting
• Workflow orchestration

Update Flow:

• Binary changes (branding, security) → Self-update
• API changes (new endpoints) → Spec reload
• Config changes (auth, rate limits) → Config update

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Configuration

Example cli-config.yaml:

metadata:
  name: my-api-cli
  version: 1.0.0
  description: My API Command Line Interface

branding:
  colors:
    primary: "#FF6B35"
  ascii_art: |
    ╔════════════════════════╗
    ║   My Amazing API CLI   ║
    ╚════════════════════════╝

api:
  openapi_url: https://api.example.com/openapi.yaml
  base_url: https://api.example.com

updates:
  enabled: true
  update_url: https://releases.example.com/my-api-cli

behaviors:
  auth:
    type: api_key
    api_key:
      header: X-API-Key
      env_var: MY_API_KEY
  output:
    default_format: json
    pretty_print: true

See Configuration DSL Reference for complete documentation.

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Advanced Features

Workflow Orchestration

Define multi-step API workflows with x-cli-workflow:

paths:
  /deploy:
    post:
      operationId: deployApp
      x-cli-workflow:
        steps:
          - id: check-readiness
            request:
              method: GET
              url: "{base_url}/readiness"

          - id: create-deployment
            request:
              method: POST
              url: "{base_url}/deployments"
              body:
                app: "{args.app_id}"
            condition: "check-readiness.body.ready == true"

        output:
          transform: |
            {
              "deployment_id": create-deployment.body.id,
              "status": create-deployment.body.status
            }

Change Detection

Automatically notify users of API changes:

info:
  x-cli-changelog:
    - date: "2025-01-11"
      version: "2.1.0"
      changes:
        - type: added
          severity: safe
          description: "New analytics endpoint"
        - type: deprecated
          severity: dangerous
          description: "GET /v1/users deprecated"
          migration: "Use GET /v2/users instead"
          sunset: "2025-12-31"

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Documentation

User Documentation

• Technical Specification - Complete system design
• Configuration DSL - Configuration reference
• User Guide - Getting started

Design Documentation

• Architecture - Architecture and design documents
• ADRs - Architecture Decision Records
• Research - Technology analysis and comparisons

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Technology Stack

• Language: Go 1.21+
• CLI Framework: spf13/cobra
• OpenAPI Parser: getkin/kin-openapi
• Expression Engine: expr-lang/expr
• Configuration: spf13/viper

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Development

# Clone repository
git clone https://github.com/cliforge/cliforge.git
cd cliforge

# Install dependencies
go mod download

# Run tests
go test ./...

# Build
go build ./...

See CONTRIBUTING.md for commit guidelines and development workflow.

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Project Status

CliForge v0.9.0 is feature complete with full implementation.

Implemented:

• Complete OpenAPI 3.x and Swagger 2.0 parser
• Configuration system with override matrix
• Plugin architecture for external tool integration
• Workflow orchestration engine with DAG execution
• Authentication (API key, Basic, OAuth2 with all flows)
• State management and context system
• Output formatting (JSON, YAML, tables)
• Progress indicators and streaming (SSE, WebSocket)
• Secrets detection and masking
• Deprecation warnings with migration assistance
• Self-update mechanism
• All built-in commands
• Generator CLI (cliforge init/build/validate)

Test Coverage:

• 14/17 packages passing all tests
• Average coverage: 51.8%
• High coverage in critical areas (state: 87%, output: 76%, secrets: 75%)

Next:

• Performance optimization
• Enhanced integration testing
• Production deployment examples

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Why CliForge?

Existing tools require tradeoffs:

Static Generators (OpenAPI Generator, swagger-codegen):

• Generate branded binaries
• Require regeneration for API changes
• No self-updating capability

Dynamic Loaders (Restish, openapi-cli):

• Load specs dynamically
• Cannot be branded or distributed as standalone tools

CliForge provides both:

• Branded, distributable binaries
• Dynamic API updates
• Self-updating for security
• Change notifications
• Workflow orchestration

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License

MIT License - See LICENSE for details.

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Links

• Documentation: docs/
• Contributing: CONTRIBUTING.md