index.ts — tailwindcss Source File

Source Code

import QuickLRU from '@alloc/quick-lru'
import {
  compile,
  env,
  Features,
  Instrumentation,
  normalizePath,
  optimize,
  Polyfills,
} from '@tailwindcss/node'
import { clearRequireCache } from '@tailwindcss/node/require-cache'
import { Scanner } from '@tailwindcss/oxide'
import fs from 'node:fs'
import path from 'node:path'
import type { LoaderContext } from 'webpack'

const DEBUG = env.DEBUG

export interface LoaderOptions {
  /**
   * The base directory to scan for class candidates.
   *
   * Defaults to the current working directory.
   */
  base?: string

  /**
   * Optimize and minify the output CSS.
   */
  optimize?: boolean | { minify?: boolean }
}

interface CacheEntry {
  mtimes: Map<string, number>
  compiler: null | Awaited<ReturnType<typeof compile>>
  scanner: null | Scanner
  candidates: Set<string>
  fullRebuildPaths: string[]
}

const cache = new QuickLRU<string, CacheEntry>({ maxSize: 50 })

function getContextFromCache(inputFile: string, opts: LoaderOptions): CacheEntry {
  let key = `${inputFile}:${opts.base ?? ''}:${JSON.stringify(opts.optimize)}`
  if (cache.has(key)) return cache.get(key)!
  let entry: CacheEntry = {
    mtimes: new Map<string, number>(),
    compiler: null,
    scanner: null,
    candidates: new Set<string>(),
    fullRebuildPaths: [],
  }
  cache.set(key, entry)
  return entry
}

export default async function tailwindLoader(
  this: LoaderContext<LoaderOptions>,
  source: string,
): Promise<void> {
// ... (223 more lines)