Demonstrate how to troubleshoot JavaScript actions

[lfarci]

Troubleshooting JavaScript actions involves several steps. Here's a step-by-step guide:

1. Check the Workflow Log: The first step in troubleshooting is to check the workflow log in GitHub. This will show you the output of your action and any error messages.

2. Add Debug Messages: If the error message isn't clear, you can add debug messages to your action. In JavaScript actions, you can use core.debug('Your debug message') to add a debug message. Debug messages are only shown in the log if you set the ACTIONS_STEP_DEBUG secret to true in your repository.

3. Run the Action Locally: If you're still having trouble, you can run the action locally. To do this, you'll need to install the @actions/core and @actions/github packages, set the necessary environment variables, and run your action's script.

4. Write Tests: Writing tests for your action can help you identify where the problem is. You can use a testing framework like Jest to write tests for your action.

Here's an example of how you might add a debug message and run your action locally:

const core = require('@actions/core');
const github = require('@actions/github');

try {
  // Add a debug message
  core.debug('Starting action');

  // Your action's code here

  core.debug('Finished action');
} catch (error) {
  core.setFailed(error.message);
}

To run this action locally, you would do something like this:

# Install the necessary packages
npm install @actions/core @actions/github

# Set the necessary environment variables
export GITHUB_TOKEN=your-token
export INPUT_YOUR_INPUT=your-input

# Run your action's script
node your-action.js

Remember to replace 'Starting action', 'Finished action', 'your-token', 'your-input', and 'your-action.js' with the debug messages, GitHub token, inputs, and script name that are appropriate for your action.