feat(preview): support cwd as positional arg

src/commands/preview.mjs

@@ -1,7 +1,7 @@
 import { consola } from 'consola'
 import { defineCommand } from 'citty'
 import { readFile, writeFile, unlink } from 'node:fs/promises'
-import { join, relative } from 'pathe'
+import { join, relative, resolve } from 'pathe'
 import { execa } from 'execa'
 import { existsSync } from 'node:fs'
 import { loadJsonFile } from 'load-json-file'
@@ -12,9 +12,18 @@ export default defineCommand({
     name: 'preview',
     description: 'Preview your project locally (using `wrangler pages dev`).',
   },
-  args: {},
-  async run() {
-    const distDir = join(process.cwd(), 'dist')
+  args: {
+    cwd: {
+      type: 'positional',
+      description: 'The directory of the application to preview.',
+      required: false,
+      default: '.'
+    },
+  },
+  async run({ args }) {
+    const cmdCwd = process.cwd()
+    const cwd = resolve(cmdCwd, args.cwd)
+    const distDir = join(cwd, 'dist')
     // Read the dist/hub.config.json file
     const hubConfig = await loadJsonFile(join(distDir, 'hub.config.json')).catch(() => null)
     if (!existsSync(distDir) || !hubConfig) {
@@ -24,7 +33,7 @@ export default defineCommand({
     const nitroConfig = await loadJsonFile(join(distDir, 'nitro.json')).catch(() => null)
 
     // Add .wrangler to .gitignore
-    const gitignorePath = join(process.cwd(), '.gitignore')
+    const gitignorePath = join(cwd, '.gitignore')
     const gitignore = await readFile(gitignorePath, 'utf-8').catch(() => '')
     if (gitignore && !gitignore.includes('.wrangler')) {
       await writeFile(gitignorePath, `${gitignore ? gitignore + '\n' : gitignore}.wrangler`, 'utf-8')
@@ -33,21 +42,21 @@ export default defineCommand({
     const fileSideEffects = []
     // Wrangler does not support .env, only a .dev.vars
     // see https://developers.cloudflare.com/pages/functions/bindings/#interact-with-your-secrets-locally
-    const envPath = join(process.cwd(), '.env')
+    const envPath = join(cwd, '.env')
     const devVarsPath = join(distDir, '.dev.vars')
     if (existsSync(envPath)) {
-      consola.info(`Copying \`.env\` to \`${relative(process.cwd(), devVarsPath)}\`...`)
+      consola.info(`Copying \`.env\` to \`${relative(cwd, devVarsPath)}\`...`)
       const envVars = await readFile(envPath, 'utf-8').catch(() => '')
       await writeFile(devVarsPath, envVars, 'utf-8')
       fileSideEffects.push(devVarsPath)
     }
 
     const wrangler = generateWrangler(hubConfig, { preset: nitroConfig.preset })
     const wranglerPath = join(distDir, 'wrangler.toml')
-    consola.info(`Generating \`${relative(process.cwd(), wranglerPath)}\`...`)
+    consola.info(`Generating \`${relative(cwd, wranglerPath)}\`...`)
     fileSideEffects.push(wranglerPath)
     await writeFile(wranglerPath, wrangler)
-    const options = { stdin: 'inherit', stdout: 'inherit', cwd: distDir, preferLocal: true, localDir: process.cwd() }
+    const options = { stdin: 'inherit', stdout: 'inherit', cwd: distDir, preferLocal: true, localDir: cwd }
     if (hubConfig.database && existsSync(join(distDir, 'database/migrations'))) {
       consola.info('Applying migrations...')
       await execa({ ...options, stdin: 'ignore' })`wrangler d1 migrations apply default --local`