Method setLibrary

src/UserConfig.js:848–860

(engineName, libraryInstance)

	 * Library Overrides and Options
	 */
	setLibrary(engineName, libraryInstance) {
		if (engineName === "liquid" && Object.keys(this.liquid.options).length) {
			debug(
				"WARNING: using `eleventyConfig.setLibrary` will override any configuration set using `.setLiquidOptions` via the config API. You’ll need to pass these options to the library yourself.",
			);
		} else if (engineName === "njk" && Object.keys(this.nunjucks.environmentOptions).length) {
			debug(
				"WARNING: using `eleventyConfig.setLibrary` will override any configuration set using `.setNunjucksEnvironmentOptions` via the config API. You’ll need to pass these options to the library yourself.",
			);
		}

		this.libraryOverrides[engineName.toLowerCase()] = libraryInstance;
	}

	/* These callbacks run on both libraryOverrides and default library instances */
	amendLibrary(engineName, callback) {