feat: make lastUpdated as a plugin.

docs/.vuepress/config.js

@@ -27,7 +27,7 @@ module.exports = {
   theme: 'vue',
   plugins: [
     [
-      require('../../lib/plugins/vuepress-plugin-last-updated/index'),
+      require('../../lib/plugins/vuepress-plugin-last-updated/index')
     ]
   ],
   themeConfig: {

lib/plugin-api/index.js

@@ -20,7 +20,7 @@ module.exports = class Plugin {
       'outFiles',
       'extendPageData'
     ])
-    this.resolvePluginConfig(pluginConfigs)
+    this.resolvePluginConfigs(pluginConfigs)
   }
 
   extendHooks (hooks) {
@@ -35,27 +35,32 @@ module.exports = class Plugin {
     })
   }
 
+  registerHook (name, hook, symbol) {
+    if (hook) {
+      this.hooks[name].tap(symbol, hook)
+    }
+    return this
+  }
+
+  registerAPI (name, api) {
+    if (api) {
+      this.apis[name].push(api)
+    }
+    return this
+  }
+
   resolvePluginConfigs (pluginConfigs) {
     pluginConfigs.forEach(([name, pluginOptions]) => {
       let plugin = resolvePlugin(name)
       if (typeof plugin === 'function') {
         plugin = plugin(pluginOptions)
       }
+      console.log(plugin)
       plugin = Object.assign(plugin, { name: inferPluginName(name, plugin) })
       this.resolvePluginConfig(plugin)
     })
   }
 
-  registerHook (name, hook, symbol) {
-    this.hooks[name].tap(symbol, hook)
-    return this
-  }
-
-  registerAPI (name, api) {
-    this.apis[name].push(api)
-    return this
-  }
-
   resolvePluginConfig ({
     name,
     client,

lib/plugins/vuepress-plugin-last-updated/index.js

@@ -3,9 +3,9 @@ const spawn = require('cross-spawn')
 
 module.exports = options => ({
   client: path.resolve(__dirname, 'client.js'),
-  extendPageData (filepath) {
+  extendPageData ({ filepath }) {
     return {
-      lastModified: getGitLastUpdatedTimeStamp(filepath)
+      lastUpdated: getGitLastUpdatedTimeStamp(filepath)
     }
   }
 })

lib/prepare/resolveOptions.js

@@ -4,7 +4,7 @@ const globby = require('globby')
 const createMarkdown = require('../markdown')
 const Plugin = require('../plugin-api')
 const loadConfig = require('./loadConfig')
-const { encodePath, fileToPath, sort, getGitLastUpdatedTimeStamp } = require('./util')
+const { encodePath, fileToPath, sort } = require('./util')
 const {
   inferTitle,
   extractHeaders,
@@ -117,33 +117,22 @@ module.exports = 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 pagesData = await Promise.all(pageFiles.map(async (relative) => {
+    const filepath = path.resolve(sourceDir, relative)
     const key = 'v-' + Math.random().toString(16).slice(2)
     const data = {
       key,
-      path: encodePath(fileToPath(file))
+      path: encodePath(fileToPath(relative))
     }
 
     for (const fn of plugin.apis.extendPageData) {
-      const res = await fn(file)
+      const res = await fn({ filepath, relative, key, sourceDir })
       if (typeof res === 'object') {
         Object.assign(data, res)
       }
     }
 
-    if (shouldResolveLastUpdated) {
-      data.lastUpdated = getGitLastUpdatedTimeStamp(filepath)
-    }
-
     // extract yaml frontmatter
     const content = await fs.readFile(filepath, 'utf-8')
     const frontmatter = parseFrontmatter(content)

lib/prepare/util.js

 const path = require('path')
-const spawn = require('cross-spawn')
 const fs = require('fs-extra')
 const globby = require('globby')
 
@@ -74,7 +73,3 @@ exports.sort = function (arr) {
 exports.encodePath = function (userpath) {
   return userpath.split('/').map(item => encodeURIComponent(item)).join('/')
 }
-
-exports.getGitLastUpdatedTimeStamp = function (filepath) {
-  return parseInt(spawn.sync('git', ['log', '-1', '--format=%ct', filepath]).stdout.toString('utf-8')) * 1000
-}