Function concurrently

Generates a bash command that uses concurrently to run scripts concurrently. Adds a few flags to make it behave as you probably want (like --kill-others-on-fail). In addition, it adds color and labels where the color can be specified or is defaulted and the label is based on the key for the script.

Example

// returns a bit of a long script that can vary slightly
// based on your environment...
concurrent({
  lint: {
    script: 'eslint .',
    color: 'bgGreen.white.dim',
  },
  test: 'jest',
  build: {
    script: 'webpack'
  }
})
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