Gallows

Gallows is a lightweight command execution framework. It allows you to define a set of commands, each with their own validation, execution, and example. Commands can then be invoked with specified attributes and a body.

Usage

To use Gallows, you define your commands, then execute them:

gallows([
  // Define your commands here
]).execute(
  // Execute commands here
)

Each command has the following properties:

• name: The name of the command
• validate(attributes, body): A function that validates the command's attributes and body
• execute(attributes, body): A function that executes the command with the provided attributes and body and returns the result
• example: An object with attributes and body properties, demonstrating how to use the command
• description: A description of what the command does

When executing commands, you provide the following arguments:

• action: The name of the command to execute
• attributes: An object containing the attributes for the command
• body: The body of the command

Here's an example of how to define and execute a command:

gallows([
  {
    name: 'echo',
    validate: (attributes, body) => {
      return body !== undefined;
    },
    execute: (attributes, body) => {
      // Execute the 'echo' command with the provided body
      return body;
    },
    example: {
      attributes: {},
      body: 'Hello, Gallows!'
    },
    description: 'Echoes the provided message'
  }
]).execute(
  'echo',
  {},
  'Hello, Gallows!'
)

The execute function will return the result of the command.

Command Overloading

Gallows supports command overloading, which means that you can define multiple commands with the same name. When executing a command, the first command that passes the validate function will be executed. This allows you to provide different implementations of the same command based on the provided attributes and body.

Here's an example of command overloading:

gallows([
  {
    name: 'echo',
    validate: (attributes, body) => body !== undefined,
    execute: (attributes, body) => body,
    example: {
      attributes: {},
      body: 'Hello, Gallows!'
    },
    description: 'Echoes the provided message'
  },
  {
    name: 'echo',
    validate: (attributes, body) => attributes.message !== undefined,
    execute: (attributes, body) => `Echo: ${attributes.message}`,
    example: {
      attributes: { message: 'Hello, world!' },
      body: ''
    },
    description: 'Echoes the provided message'
  }
]).execute(
  'echo',
  { message: 'Hello, world!' },
  ''
)

In this example, the second echo command will be executed, as its validate function matches the provided attributes.

Feel free to add more commands to your Gallows project!