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env_loc.js

@@ -1,4 +1,4 @@
-// usage: node env_loc.js hbxCli iosTransporter simsimPath openShare
+// usage: node env_loc.js hbxCli iosTransporter // defaultEnv里不存在的作为参数
 
 const fs = require('fs')
 const path = require('path')
@@ -9,22 +9,16 @@ const params = process.argv.slice(2)
 // 默认值。如要覆盖，请在 env_loc.gitomit.sfomit.json 中修改。
 const defaultEnv = {
   hbxCli:
-    os.type() === 'Darwin' &&
-    fs.existsSync('/Applications/HBuilderX.app/Contents/MacOS/cli')
+    os.type() === 'Darwin' && fs.existsSync('/Applications/HBuilderX.app/Contents/MacOS/cli')
       ? '/Applications/HBuilderX.app/Contents/MacOS/cli'
       : os.type() === 'Windows_NT' && fs.existsSync('C:/HBuilderX/cli.exe')
       ? 'C:/HBuilderX/cli.exe'
       : '',
   iosTransporter:
-    os.type() === 'Darwin' &&
-    fs.existsSync(
-      '/Applications/Transporter.app/Contents/itms/bin/iTMSTransporter'
-    )
+    os.type() === 'Darwin' && fs.existsSync('/Applications/Transporter.app/Contents/itms/bin/iTMSTransporter')
       ? '/Applications/Transporter.app/Contents/itms/bin/iTMSTransporter'
       : '',
-  simsimPath: module.paths.some(modulesPath =>
-    fs.existsSync(path.join(modulesPath, 'sesame-basic'))
-  )
+  simsimPath: module.paths.some((modulesPath) => fs.existsSync(path.join(modulesPath, 'sesame-basic')))
     ? 'sesame-basic'
     : fs.existsSync('../../../simsim/sesame-basic')
     ? path.resolve('../../../simsim/sesame-basic')
@@ -35,29 +29,21 @@ const defaultEnv = {
     ? path.resolve('../../npm')
     : fs.existsSync(`${os.homedir()}/openShare`)
     ? path.resolve(`${os.homedir()}/openShare`)
-    : ''
+    : '',
 }
 
 const localEnv = Object.assign(
   {},
   params.reduce((acc, cur) => {
-    if (defaultEnv[cur]) {
-      acc[cur] = defaultEnv[cur]
-    } else {
-      acc[cur] = ''
-    }
+    // 把参数名数组转化为对象
+    acc[cur] = ''
     return acc
   }, {}),
-  fs.existsSync('./env_loc.gitomit.sfomit.json')
-    ? require(path.resolve('./env_loc.gitomit.sfomit.json'))
-    : {}
+  defaultEnv, // 继承所有默认值
+  fs.existsSync('./env_loc.gitomit.sfomit.json') ? require(path.resolve('./env_loc.gitomit.sfomit.json')) : {}
 )
 
-fs.writeFileSync(
-  path.resolve('./env_loc.gitomit.sfomit.json'),
-  JSON.stringify(localEnv, null, 2),
-  'utf8'
-)
+fs.writeFileSync(path.resolve('./env_loc.gitomit.sfomit.json'), JSON.stringify(localEnv, null, 2), 'utf8')
 
 console.log(localEnv)