Function initTailwind

packages/plugin-tailwindcss-v3/src/mod.ts:105–144

(
  config: ResolvedBuildConfig,
  options: TailwindPluginOptions,
)

}

async function initTailwind(
  config: ResolvedBuildConfig,
  options: TailwindPluginOptions,
): Promise<postcss.Processor> {
  const root = config.root;

  const configPath = await findTailwindConfigFile(root);
  const url = path.toFileUrl(configPath).href;
  const tailwindConfig = (await import(url)).default as Config;

  if (!Array.isArray(tailwindConfig.content)) {
    throw new Error(`Expected tailwind "content" option to be an array`);
  }

  // deno-lint-ignore no-explicit-any
  tailwindConfig.content = tailwindConfig.content.map((pattern: any) => {
    if (typeof pattern === "string") {
      const relative = path.relative(Deno.cwd(), path.dirname(configPath));

      if (!relative.startsWith("..")) {
        return path.join(relative, pattern);
      }
    }
    return pattern;
  });

  // PostCSS types cause deep recursion
  const plugins = [
    // deno-lint-ignore no-explicit-any
    tailwindCss(tailwindConfig) as any,
    // deno-lint-ignore no-explicit-any
    autoprefixer(options.autoprefixer) as any,
  ];

  if (config.mode === "production") {
    plugins.push(cssnano());
  }

  return postcss(plugins);
}