# fractal.cli
The .cli
property on the main fractal instance provides access to utilities for working with the Fractal CLI tool.
const fractal = require('@frctl/fractal').create();
fractal.cli.exec('start -s');
# .command(commandString, callback, opts)
commandString
- Stringcallback
- Functionopts
- String | Object [optional]
Register a custom command to be made available to the Fractal CLI tool.
fractal.cli.command('foo <requiredArg> [optionalArg]', function(args, done){
console.log(args.requiredArg);
done();
});
The commandString
describes the format that your command should take, and allows you to specify required and optional arguments.
The callback is a function that will be run when the command is called. The first argument it receives is a object containing the arguments parsed out of the command string, plus an object (options
) containing any option flags that have been provided.
The opts
argument can be a string to describe the function of the command, or it can be an configuration object. For example:
const options = {
description: 'Start a server to run an HTTP API',
options: [
['-p, --port <number>', 'The port to run the server on.'],
]
}
fractal.cli.command('api', function(args, done){
// start the server...
console.log(`Server started on port: ${args.options.port}`);
done();
}, options);
// Use the command: `fractal api --port=4444`
# .exec()
Programmatically run any command that is available from the fractal CLI.
fractal.cli.exec('start --port=3333 --watch');
# .log()
Log a message to the console via Fractal's CLI formatter.
fractal.cli.log('Just some information');
# .error()
Log a message to the console via Fractal's CLI error formatter.
fractal.cli.error('Oops somthing went wrong!');
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