feat: 支持 只有自定义条件编译时的或判断

packages/uni-cli-shared/lib/package.js

 const uniI18n = require('@dcloudio/uni-cli-i18n')
 
+function isPlainObject(a) {
+  if (a === null) {
+    return false
+  }
+  return typeof a === 'object'
+}
+
 module.exports = {
-  initCustomScript (name, pkgPath) {
+  initCustomScript(name, pkgPath) {
     const pkg = require(pkgPath)
     const uniAppOptions = pkg['uni-app']
 
@@ -21,6 +28,16 @@ module.exports = {
       process.exit(0)
     }
 
+    if (isPlainObject(scriptOptions.define)) {
+      Object.keys(uniAppOptions.scripts).forEach(scriptName => {
+        if (scriptName !== name) {
+          const define = uniAppOptions.scripts[scriptName].define
+          Object.keys(define).forEach(name => define[name] = false)
+          Object.assign(scriptOptions.define, define)
+        }
+      })
+    }
+
     process.env.UNI_PLATFORM = scriptOptions.env.UNI_PLATFORM
 
     process.env.UNI_SCRIPT = name