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Improve compat mode (#2775)

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* simplify compat mode

* make sure postcss is included

* make sure we cannot go into compatibility mode twice
This commit is contained in:
Robin Malfait 2020-11-16 20:10:08 +01:00 • committed by GitHub
parent 83c685a43e
commit c238ed15b5
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3 changed files with 47 additions and 20 deletions
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65
scripts/compat.js
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@ -6,53 +6,80 @@ function fromRootPath(...paths) {
return path.resolve(process.cwd(), ...paths)
}
function backupPath(...paths) {
return path.resolve(process.cwd(), 'node_modules', '__tw_cache__', ...paths)
}
function copy(fromPath, toPath) {
fs.mkdirSync(path.dirname(toPath), { recursive: true })
fs.copyFileSync(fromPath, toPath)
}
if (process.argv.includes('--prepare')) {
if (
fs.existsSync(fromRootPath('package.postcss8.json')) ||
fs.existsSync(fromRootPath('src', 'index.postcss8.js'))
) {
console.error('\n\n[ABORT] Already in PostCSS 7 compatibility mode!\n\n')
process.exit(1)
}
const mainPackageJson = require('../package.json')
const compatPackageJson = require('../package.postcss7.json')
// 1. Backup original package.json file
copy(fromRootPath('package.json'), backupPath('package.json'))
copy(fromRootPath('package.json'), fromRootPath('package.postcss8.json'))
// 2. Backup lib/index.js file
copy(fromRootPath('lib', 'index.js'), backupPath('lib', 'index.js'))
// 2. Backup src/index.js file
copy(fromRootPath('src', 'index.js'), fromRootPath('src', 'index.postcss8.js'))
// 3. Use the postcss7 compat file
copy(fromRootPath('lib', 'index.postcss7.js'), fromRootPath('lib', 'index.js'))
// 3. Use the PostCSS 7 compat file
copy(fromRootPath('src', 'index.postcss7.js'), fromRootPath('src', 'index.js'))
// 4. Deep merge package.json contents
const packageJson = merge({}, mainPackageJson, compatPackageJson)
// 5. Write package.json with the new contents
// 5. Remove peerDependencies
delete packageJson.peerDependencies
// 6. Write package.json with the new contents
fs.writeFileSync(fromRootPath('package.json'), JSON.stringify(packageJson, null, 2), 'utf8')
// 6. Print some useful information to make publishing easy
// 7. Print some useful information to make publishing easy
console.log()
console.log('You can safely publish `tailwindcss` in PostCSS 7 compatibility mode:\n')
console.log(
['npm version', 'npm publish --tag compat', 'npm run compat:restore']
[
// Not necessary, but a quick 'hash', basically the current date/time
`git checkout -b compat-${new Date()
.toJSON()
.replace(/[-:.TZ]/g, '') // Remove weird characters
.slice(0, -3)}`, // Remove milliseconds precision
'git add .',
'git commit -m "compat"',
'npm version',
'npm publish --tag compat',
'npm run compat:restore',
]
.map((v) => ` ${v}`)
.join('\n')
)
console.log()
} else if (process.argv.includes('--restore')) {
if (
!fs.existsSync(fromRootPath('package.postcss8.json')) ||
!fs.existsSync(fromRootPath('src', 'index.postcss8.js'))
) {
console.error('\n\n[ABORT] Already in latest PostCSS mode!\n\n')
process.exit(1)
}
// 1. Restore original package.json file
copy(backupPath('package.json'), fromRootPath('package.json'))
fs.unlinkSync(backupPath('package.json'))
copy(fromRootPath('package.postcss8.json'), fromRootPath('package.json'))
// 2. Restore lib/index.js file
copy(backupPath('lib', 'index.js'), fromRootPath('lib', 'index.js'))
fs.unlinkSync(backupPath('lib', 'index.js'))
// 2. Restore src/index.js file
copy(fromRootPath('src', 'index.postcss8.js'), fromRootPath('src', 'index.js'))
// 3. Done
// 3. Cleanup PostCSS 8 related files
fs.unlinkSync(fromRootPath('package.postcss8.json'))
fs.unlinkSync(fromRootPath('src', 'index.postcss8.js'))
// 4. Done
console.log()
console.log('Restored from PostCSS 7 mode to latest PostCSS mode!')
console.log()