feat(release): add beta and rc prerelease labels (#10806)

.github/version-script-prerelease.js

@@ -0,0 +1,37 @@
+import fs from "fs"
+
+const pkgJsonPath = "packages/shadcn/package.json"
+const channel = process.argv[2]
+const headSha = process.argv[3]
+
+if (!["beta", "rc"].includes(channel)) {
+  console.error(
+    `Expected prerelease channel to be "beta" or "rc", got "${channel}".`
+  )
+  process.exit(1)
+}
+
+if (!headSha) {
+  console.error("Expected pull request head SHA.")
+  process.exit(1)
+}
+
+try {
+  const pkg = JSON.parse(fs.readFileSync(pkgJsonPath, "utf8"))
+  const shortSha = headSha.trim().slice(0, 7)
+  const baseVersion = channel === "beta" ? "0.0.0" : pkg.version
+
+  if (channel === "rc" && baseVersion.includes("-")) {
+    console.error(
+      `Expected a stable planned version for rc, got "${baseVersion}".`
+    )
+    process.exit(1)
+  }
+
+  pkg.version = `${baseVersion}-${channel}.${shortSha}`
+  fs.writeFileSync(pkgJsonPath, JSON.stringify(pkg, null, "\t") + "\n")
+  console.log(`Prepared shadcn@${pkg.version}`)
+} catch (error) {
+  console.error(error)
+  process.exit(1)
+}