JavaScript file for exporting GitHub labels to a JSON object.

github-labels-export.js

/*

Purpose: Export the configuration settings for GitHub Labels.
(c) James Perrin, CC0 1.0 Universal License, https://github.com/jamesperrin

Exporting Instructions:

1. Open a web browser.
2. Navigate to the desired GitHub repository.
3. Navigate to Issues tab.
4. Navigate to Labels link.
5. Open the web browser's Developer Tools
6. Navigate to the Console
7. Copy and Paste below code into the Console.
8. Save github-labels.json to a desired computer folder location.

Please visit the below link to download the import JavaScript script.
github-labels-import.js - https://gist.github.com/jamesperrin/d811fadea2bd199ecf98195d96513afd

*/

/**
 * @description Exports GitHub repository Issues labels to a JSON file
 *
 */
(function () {
	// Utility function to convert RGB to Hex
	const hex = (x) => `0${parseInt(x).toString(16)}`.slice(-2);

	const rgba2hex = (rgba) => {
		const rgbaMatch = rgba?.match(/^rgba?\((\d+),\s*(\d+),\s*(\d+)(,\s*\d+(\.\d+)?)?\)$/);
		return rgbaMatch ? hex(rgbaMatch[1]) + hex(rgbaMatch[2]) + hex(rgbaMatch[3]) : '000000'; // Default to black
	};

	// Process to export labels into a JSON object
	function getLabels() {
		const jsLabels = document.querySelectorAll('.js-label-link');

		if (!jsLabels || jsLabels.length === 0) {
			console.error('No labels found in the DOM. Make sure the page has loaded and the selector is correct.');
			return [];
		}

		return Array.from(jsLabels).map((jsLabel) => {
			const nameLabel = jsLabel.dataset.name.trim();
			const descriptionLabel =
				jsLabel.parentElement?.nextElementSibling?.firstElementChild?.innerText?.trim() ?? '';
			const colorLabel = rgba2hex(window.getComputedStyle(jsLabel).getPropertyValue('background-color'));

			return {
				name: nameLabel,
				description: descriptionLabel,
				color: colorLabel,
			};
		});
	}

	// Function save JSON object to a file
	const saveJSON = (data, filename) => {
		if (!data || data.length === 0) {
			console.error('No data to save');
			return;
		}

		const blob = new Blob([JSON.stringify(data, null, 4)], { type: 'text/json' });
		const anchorElement = document.createElement('a');

		anchorElement.download = filename;
		anchorElement.href = URL.createObjectURL(blob);
		anchorElement.dataset.downloadurl = ['text/json', anchorElement.download, anchorElement.href].join(':');
		anchorElement.click();

		// Cleanup URL object
		URL.revokeObjectURL(anchorElement.href);
	};

	// Saves labels to JSON file.
	try {
		const labels = getLabels();
		if (labels.length) {
			saveJSON(labels, 'github-labels.json');
		}
	} catch (error) {
		console.error('An error occurred:', error.message);
	}
})();

I was able to use this successfully. Thanks for making this available!