remove the need to specify debug env when creating test projects

README.md

@@ -16,7 +16,6 @@ cd packages/@vue/cli
 yarn link
 
 # create test projects in /packages/test
-export VUE_CLI_DEBUG=true # necessary for manual tests to work
 cd -
 cd packages/test
 vue create test-app

packages/@vue/cli/bin/vue

@@ -1,5 +1,7 @@
 #!/usr/bin/env node
 
+const fs = require('fs')
+const path = require('path')
 const chalk = require('chalk')
 const semver = require('semver')
 const { error } = require('@vue/cli-shared-utils')
@@ -13,6 +15,12 @@ if (!semver.satisfies(process.version, requiredVersion)) {
   process.exit(1)
 }
 
+// enter debug mode when creating test repo
+if (process.cwd().indexOf('/packages/test') > 0 &&
+    fs.existsSync(path.resolve(process.cwd(), '../@vue'))) {
+  process.env.VUE_CLI_DEBUG = true
+}
+
 const program = require('commander')
 const loadCommand = require('../lib/util/loadCommand')