analyze.ts — tailwindcss Source File

Source Code

import { isGitIgnored } from 'globby'
import path from 'node:path'
import postcss, { type Result } from 'postcss'
import { DefaultMap } from '../../../../tailwindcss/src/utils/default-map'
import { segment } from '../../../../tailwindcss/src/utils/segment'
import { Stylesheet, type StylesheetConnection } from '../../stylesheet'
import { error, highlight, relative } from '../../utils/renderer'
import { resolveCssId } from '../../utils/resolve'

export async function analyze(stylesheets: Stylesheet[]) {
  let isIgnored = await isGitIgnored()
  let processingQueue: (() => Promise<Result>)[] = []
  let stylesheetsByFile = new DefaultMap<string, Stylesheet | null>((file) => {
    // We don't want to process ignored files (like node_modules)
    try {
      if (isIgnored(file)) {
        return null
      }
    } catch {
      // If the file is not part of the current working directory (which can
      // happen if you import `tailwindcss` and it's loading a shared file from
      // pnpm) then this will throw.
      return null
    }

    try {
      let sheet = Stylesheet.loadSync(file)

      // Mutate incoming stylesheets to include the newly discovered sheet
      stylesheets.push(sheet)

      // Queue up the processing of this stylesheet
      processingQueue.push(() => processor.process(sheet.root, { from: sheet.file! }))

      return sheet
    } catch {
      return null
    }
  })

  // Step 1: Record which `@import` rules point to which stylesheets
  // and which stylesheets are parents/children of each other
  let processor = postcss([
    {
      postcssPlugin: 'mark-import-nodes',
      AtRule: {
        import(node) {
          // Find what the import points to
          let id = node.params.match(/['"](.*?)['"]/)?.[1]
          if (!id) return

          let basePath = node.source?.input.file
            ? path.dirname(node.source.input.file)
            : process.cwd()

          // Resolve the import to a file path
          let resolvedPath: string | false = false
          try {
            // We first try to resolve the file as relative to the current file
            // to mimic the behavior of `postcss-import` since that's what was
// ... (241 more lines)