chore: falling-off performance log. (via --performance to see)

Author: ulivz

Diff for: packages/@vuepress/core/lib/build.js

@@ -83,7 +83,7 @@ module.exports = async function build (sourceDir, cliOptions = {}) {
   const relativeDir = path.relative(cwd, outDir)
   logger.success(`Generated static files in ${chalk.cyan(relativeDir)}.`)
   const { duration } = performance.stop()
-  logger.debug(`It took a total of ${chalk.cyan(`${duration}ms`)} to run the ${chalk.cyan('vuepress build')}.`)
+  logger.developer(`It took a total of ${chalk.cyan(`${duration}ms`)} to run the ${chalk.cyan('vuepress build')}.`)
   console.log()
 
   // --- helpers ---

Diff for: packages/@vuepress/core/lib/webpack/DevLogPlugin.js

@@ -37,7 +37,7 @@ module.exports = class DevLogPlugin {
         isFirst = false
         console.log(`${chalk.gray('>')} VuePress dev server listening at ${chalk.cyan(displayUrl)}`)
         const { duration } = performance.stop()
-        logger.debug(`It took a total of ${chalk.cyan(`${duration}ms`)} to run the ${chalk.cyan('vuepress dev')} for the first time.`)
+        logger.developer(`It took a total of ${chalk.cyan(`${duration}ms`)} to run the ${chalk.cyan('vuepress dev')} for the first time.`)
       }
     })
     compiler.hooks.invalid.tap('vuepress-log', clearScreen)

Diff for: packages/@vuepress/shared-utils/lib/logger.js

@@ -88,7 +88,7 @@ class Logger {
   }
 
   developer (...args) {
-    if (process.env.VUEPRESS_ENV !== 'developer') {
+    if (process.env.VUEPRESS_ENV !== 'developer' || process.argv.includes('--developer')) {
       return
     }
     this.status('cyan', 'developer', ...args)