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import execa from 'execa'
import semver from 'semver'
import { existsSync } from 'fs'
import { join } from 'path'
import { readdir, readFile } from 'fs/promises'
async function fetchTagsFromRegistry(packageName: string) {
const res = await fetch(
`https://registry.npmjs.org/-/package/${packageName}/dist-tags`
)
const tags = await res.json()
return tags
}
async function getTag({
name,
version,
latest,
}: {
name: string
version: string
latest: string
}): Promise<string> {
const preConfigPath = join(process.cwd(), '.changeset', 'pre.json')
if (existsSync(preConfigPath)) {
const { tag, mode } = JSON.parse(await readFile(preConfigPath, 'utf-8'))
if (mode === 'pre') {
if (!version.includes('-')) {
throw new Error(
`The changeset is in pre mode, but the version of "${name}@${version}" is not prerelease. It is likely a bug from versioning the packages.`
)
}
return tag
}
}
if (version.includes('-')) {
throw new Error(
`The changeset is not in pre mode, but the version of "${name}@${version}" is prerelease. It is likely a bug from versioning the packages.`
)
}
// If the current version is less than the latest,
// it means this is a backport release. Since NPM
// sets the 'latest' tag by default during publishing,
// when users install `next@latest`, they might get the
// backported version instead of the actual "latest"
// version. Hence, we explicitly set the tag as
// 'stable' for backports.
if (semver.lt(version, latest)) {
return 'stable'
}
return 'latest'
}
async function publishNpm() {
if (!process.env.NPM_TOKEN) {
throw new Error('NPM_TOKEN is not set')
}
const packagesDir = join(process.cwd(), 'packages')
const packageDirs = await readdir(packagesDir, {
withFileTypes: true,
})
for (const packageDir of packageDirs) {
if (!packageDir.isDirectory()) {
continue
}
const pkgJson = JSON.parse(
await readFile(
join(process.cwd(), 'packages', packageDir.name, 'package.json'),
'utf-8'
)
)
if (pkgJson.private) {
continue
}
const tags = await fetchTagsFromRegistry(pkgJson.name)
// If the current version is already published in the
// registry, skip the process.
if (semver.eq(pkgJson.version, tags.latest)) {
console.log(
`Skipping ${pkgJson.name}@${pkgJson.version} because it is already published.`
)
continue
}
const tag = await getTag({
name: pkgJson.name,
version: pkgJson.version,
latest: tags.latest,
})
const packagePath = join(packagesDir, packageDir.name)
const args = ['publish', packagePath, '--tag', tag]
console.log(
`Running command: "pnpm ${args.join(' ')}" for ${pkgJson.name}@${pkgJson.version}`
)
await execa('pnpm', args, { stdio: 'inherit' })
}
}
publishNpm()
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