feat: disable lastUpdated by default

Author: ulivz

docs/.vuepress/config.js

@@ -4,14 +4,12 @@ module.exports = {
     '/': {
       lang: 'en-US',
       title: 'VuePress',
-      description: 'Vue-powered Static Site Generator',
-      lastUpdated: 'Last Updated'
+      description: 'Vue-powered Static Site Generator'
     },
     '/zh/': {
       lang: 'zh-CN',
       title: 'VuePress',
-      description: 'Vue 驱动的静态网站生成器',
-      lastUpdated: '上次更新'
+      description: 'Vue 驱动的静态网站生成器'
     }
   },
   head: [
@@ -36,6 +34,7 @@ module.exports = {
         label: 'English',
         selectText: 'Languages',
         editLinkText: 'Edit this page on GitHub',
+        lastUpdated: 'Last Updated',
         nav: [
           {
             text: 'Guide',
@@ -58,6 +57,7 @@ module.exports = {
         label: '简体中文',
         selectText: '选择语言',
         editLinkText: '在 GitHub 上编辑此页',
+        lastUpdated: '上次更新',
         nav: [
           {
             text: '指南',

lib/default-theme/Page.vue

@@ -18,7 +18,7 @@
           </router-link> →
         </span>
       </p>
-      <div class="last-updated">{{ $localeConfig.lastUpdated || 'Last Updated' }}: {{ lastUpdated }}</div>
+      <div v-if="lastUpdated" class="last-updated">{{ lastUpdatedText }}: {{ lastUpdated }}</div>
     </div>
     <slot name="bottom"/>
   </div>
@@ -33,7 +33,18 @@ export default {
   props: ['sidebarItems'],
   computed: {
     lastUpdated () {
-      return new Date(this.$page.lastUpdated).toLocaleString(this.$localeConfig.lang)
+      if (this.$page.lastUpdated) {
+        return new Date(this.$page.lastUpdated).toLocaleString(this.$lang)
+      }
+    },
+    lastUpdatedText () {
+      if (typeof this.$themeLocaleConfig.lastUpdated === 'string') {
+        return this.$themeLocaleConfig.lastUpdated
+      }
+      if (typeof this.$site.themeConfig.lastUpdated === 'string') {
+        return this.$site.themeConfig.lastUpdated
+      }
+      return 'Last Updated'
     },
     prev () {
       const prev = this.$page.frontmatter.prev

lib/prepare.js

@@ -181,15 +181,24 @@ async function resolveOptions (sourceDir) {
   // resolve pageFiles
   const pageFiles = sort(await globby(['**/*.md', '!.vuepress', '!node_modules'], { cwd: sourceDir }))
 
+  // resolve lastUpdated
+  const shouldResolveLastUpdated = (
+    themeConfig.lastUpdated ||
+    Object.keys(siteConfig.locales && themeConfig.locales || {})
+      .some(base => themeConfig.locales[base].lastUpdated)
+  )
+
   // resolve pagesData
   const pagesData = await Promise.all(pageFiles.map(async (file) => {
     const filepath = path.resolve(sourceDir, file)
-    const lastUpdated = getGitLastUpdatedTimeStamp(filepath)
     const data = {
-      lastUpdated,
       path: fileToPath(file)
     }
 
+    if (shouldResolveLastUpdated) {
+      data.lastUpdated = getGitLastUpdatedTimeStamp(filepath)
+    }
+
     // extract yaml frontmatter
     const content = await fs.readFile(filepath, 'utf-8')
     const frontmatter = parseFrontmatter(content)