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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| import fs from 'node:fs/promises' | ||
| import path from 'node:path' | ||
| import { pkg } from './utils/packages' | ||
| import { info, success, warn } from './utils/renderer' | ||
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| // Migrates simple PostCSS setups. This is to cover non-dynamic config files | ||
| // similar to the ones we have all over our docs: | ||
| // | ||
| // ```js | ||
| // module.exports = { | ||
| // plugins: { | ||
| // tailwindcss: {}, | ||
| // autoprefixer: {}, | ||
| // } | ||
| // } | ||
| export async function migratePostCSSConfig(base: string) { | ||
| let configPath = await detectConfigPath(base) | ||
| if (configPath === null) { | ||
| // TODO: We can look for an eventual config inside package.json | ||
| return | ||
| } | ||
|
|
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| info(`Attempt to upgrade the PostCSS config in file: ${configPath}`) | ||
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| let isSimpleConfig = await isSimplePostCSSConfig(base, configPath) | ||
| if (!isSimpleConfig) { | ||
| warn(`The PostCSS config contains dynamic JavaScript and can not be automatically migrated.`) | ||
| return | ||
| } | ||
|
|
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| let didAddPostcssClient = false | ||
| let didRemoveAutoprefixer = false | ||
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| let fullPath = path.resolve(base, configPath) | ||
| let content = await fs.readFile(fullPath, 'utf-8') | ||
| let lines = content.split('\n') | ||
| let newLines: string[] = [] | ||
| for (let line of lines) { | ||
| if (line.includes('tailwindcss:')) { | ||
| didAddPostcssClient = true | ||
| newLines.push(line.replace('tailwindcss:', `'@tailwindcss/postcss':`)) | ||
| } else if (line.includes('autoprefixer:')) { | ||
| didRemoveAutoprefixer = true | ||
| } else { | ||
| newLines.push(line) | ||
| } | ||
| } | ||
| await fs.writeFile(fullPath, newLines.join('\n')) | ||
|
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| if (didAddPostcssClient) { | ||
| try { | ||
| await pkg('add -D @tailwindcss/postcss@next', base) | ||
| } catch {} | ||
| } | ||
| if (didRemoveAutoprefixer) { | ||
| try { | ||
| await pkg('remove autoprefixer', base) | ||
| } catch {} | ||
| } | ||
|
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| success(`PostCSS config in file ${configPath} has been upgraded.`) | ||
| } | ||
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| const CONFIG_FILE_LOCATIONS = [ | ||
| '.postcssrc.js', | ||
| '.postcssrc.mjs', | ||
| '.postcssrc.cjs', | ||
| '.postcssrc.ts', | ||
| '.postcssrc.mts', | ||
| '.postcssrc.cts', | ||
| 'postcss.config.js', | ||
| 'postcss.config.mjs', | ||
| 'postcss.config.cjs', | ||
| 'postcss.config.ts', | ||
| 'postcss.config.mts', | ||
| 'postcss.config.cts', | ||
| ] | ||
| async function detectConfigPath(base: string): Promise<null | string> { | ||
| for (let file of CONFIG_FILE_LOCATIONS) { | ||
| let fullPath = path.resolve(base, file) | ||
| try { | ||
| await fs.access(fullPath) | ||
| return file | ||
| } catch {} | ||
| } | ||
| return null | ||
| } | ||
|
|
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| async function isSimplePostCSSConfig(base: string, configPath: string): Promise<boolean> { | ||
| let fullPath = path.resolve(base, configPath) | ||
| let content = await fs.readFile(fullPath, 'utf-8') | ||
| return ( | ||
| content.includes('tailwindcss:') && !(content.includes('require') || content.includes('import')) | ||
| ) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,61 @@ | ||
| import { execSync } from 'node:child_process' | ||
| import fs from 'node:fs/promises' | ||
| import { dirname, resolve } from 'node:path' | ||
| import { warn } from './renderer' | ||
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| let didWarnAboutPackageManager = false | ||
|
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| export async function pkg(command: string, base: string): Promise<Buffer | void> { | ||
| let packageManager = await detectPackageManager(base) | ||
| if (!packageManager) { | ||
| if (!didWarnAboutPackageManager) { | ||
| didWarnAboutPackageManager = true | ||
| warn('Could not detect a package manager. Please manually update `tailwindcss` to v4.') | ||
| } | ||
| return | ||
| } | ||
| return execSync(`${packageManager} ${command}`, { | ||
| cwd: base, | ||
| }) | ||
| } | ||
|
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| async function detectPackageManager(base: string): Promise<null | string> { | ||
| do { | ||
| // 1. Check package.json for a `packageManager` field | ||
| let packageJsonPath = resolve(base, 'package.json') | ||
| try { | ||
| let packageJsonContent = await fs.readFile(packageJsonPath, 'utf-8') | ||
| let packageJson = JSON.parse(packageJsonContent) | ||
| if (packageJson.packageManager) { | ||
| if (packageJson.packageManager.includes('yarn')) { | ||
| return 'yarn' | ||
| } | ||
| if (packageJson.packageManager.includes('pnpm')) { | ||
| return 'pnpm' | ||
| } | ||
| if (packageJson.packageManager.includes('npm')) { | ||
| return 'npm' | ||
| } | ||
| } | ||
| } catch {} | ||
|
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| // 2. Check for common lockfiles | ||
| try { | ||
| await fs.access(resolve(base, 'pnpm-lock.yaml')) | ||
| return 'pnpm' | ||
| } catch {} | ||
|
|
||
| try { | ||
| await fs.access(resolve(base, 'yarn.lock')) | ||
| return 'yarn' | ||
| } catch {} | ||
|
|
||
| try { | ||
| await fs.access(resolve(base, 'package-lock.json')) | ||
| return 'npm' | ||
| } catch {} | ||
|
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| // 3. If no lockfile is found, we might be in a monorepo | ||
| base = dirname(base) | ||
| } while (true) | ||
| } |