From 7551aaf72c45953ced5178a6a70c0b4b767c555c Mon Sep 17 00:00:00 2001
From: EGOIST <0x142857@gmail.com>
Date: Thu, 6 Dec 2018 23:16:58 +0800
Subject: [PATCH] feat: support pages option

---
 core/poi/lib/index.js                  |  2 +-
 core/poi/lib/plugins/config-html.js    | 50 ++++++++++++++------------
 core/poi/lib/utils/WebpackChain.js     |  2 +-
 core/poi/lib/utils/validateConfig.js   |  6 ++--
 core/poi/lib/webpack/webpack.config.js | 30 +++++++++-------
 5 files changed, 51 insertions(+), 39 deletions(-)

diff --git a/core/poi/lib/index.js b/core/poi/lib/index.js
index 6ebc42b8..011a3162 100644
--- a/core/poi/lib/index.js
+++ b/core/poi/lib/index.js
@@ -229,7 +229,7 @@ module.exports = class PoiCore {
     const cliConfig = this.createConfigFromCLIOptions()
     logger.debug(`Config from CLI options`, cliConfig)
 
-    this.config = validateConfig(this, merge(this.config, cliConfig))
+    this.config = validateConfig(this, merge({}, this.config, cliConfig))
 
     await this.cli.runMatchedCommand()
   }
diff --git a/core/poi/lib/plugins/config-html.js b/core/poi/lib/plugins/config-html.js
index 77bab29a..250316b7 100644
--- a/core/poi/lib/plugins/config-html.js
+++ b/core/poi/lib/plugins/config-html.js
@@ -82,31 +82,37 @@ exports.apply = api => {
         : undefined
     }
 
-    const { pages, html } = api.config.output
-    if (pages) {
-      for (const entryName of Object.keys(pages)) {
-        const page = merge(
-          defaultHtmlOpts,
-          {
-            filename: `${entryName}.html`,
-            chunks: ['chunk-vendors', 'chunk-common', entryName]
-          },
-          pages[entryName]
-        )
+    const { pages } = api.config
+    const { html } = api.config.output
+
+    if (html !== false) {
+      if (pages) {
+        for (const entryName of Object.keys(pages)) {
+          const page = merge(
+            {},
+            defaultHtmlOpts,
+            {
+              filename: `${entryName}.html`,
+              chunks: ['chunk-vendors', 'chunk-common', entryName]
+            },
+            typeof pages[entryName] === 'string' ? {} : pages[entryName]
+          )
+          page.template = api.resolveCwd(page.template)
+          config.plugin(`html-page-${entryName}`).use(HtmlPlugin, [page])
+        }
+      } else {
+        const page = merge({}, defaultHtmlOpts, html)
         page.template = api.resolveCwd(page.template)
-        config.plugin(`html-page-${entryName}`).use(HtmlPlugin, [page])
+        config.plugin('html').use(HtmlPlugin, [page])
       }
-    } else if (html !== false) {
-      const page = merge(defaultHtmlOpts, html)
-      page.template = api.resolveCwd(page.template)
-      config.plugin('html').use(HtmlPlugin, [page])
+
+      config
+        .plugin('inline-runtime-chunk')
+        .use(require('@poi/dev-utils/InlineChunkHtmlPlugin'), [
+          require('html-webpack-plugin'),
+          [/runtime~.+[.]js/]
+        ])
     }
-    config
-      .plugin('inline-runtime-chunk')
-      .use(require('@poi/dev-utils/InlineChunkHtmlPlugin'), [
-        require('html-webpack-plugin'),
-        [/runtime~.+[.]js/]
-      ])
   })
 }
 
diff --git a/core/poi/lib/utils/WebpackChain.js b/core/poi/lib/utils/WebpackChain.js
index a55f427c..53d077f0 100644
--- a/core/poi/lib/utils/WebpackChain.js
+++ b/core/poi/lib/utils/WebpackChain.js
@@ -12,7 +12,7 @@ module.exports = class WebpackChain extends Chain {
     if (typeof this.configureWebpack === 'function') {
       config = this.configureWebpack(config) || config
     } else if (typeof this.configureWebpack === 'object') {
-      config = merge(config, this.configureWebpack)
+      config = merge({}, config, this.configureWebpack)
     }
     return config
   }
diff --git a/core/poi/lib/utils/validateConfig.js b/core/poi/lib/utils/validateConfig.js
index 91bb95e9..3f7843ad 100644
--- a/core/poi/lib/utils/validateConfig.js
+++ b/core/poi/lib/utils/validateConfig.js
@@ -28,8 +28,7 @@ module.exports = (api, config) => {
           image: struct.optional('string')
         })
       ),
-      html: struct.optional('object'),
-      page: struct.optional('object')
+      html: struct.optional(struct.union(['boolean', 'object']))
     },
     {
       dir: 'dist',
@@ -130,7 +129,8 @@ module.exports = (api, config) => {
       chainWebpack: struct.optional('function'),
       configureWebpack: struct.optional(struct.union(['object', 'function'])),
       assets,
-      publicFolder: struct.union(['string', 'boolean'])
+      publicFolder: struct.union(['string', 'boolean']),
+      pages: struct.optional('object')
     },
     {
       cache: true,
diff --git a/core/poi/lib/webpack/webpack.config.js b/core/poi/lib/webpack/webpack.config.js
index ffa7570c..945958e1 100644
--- a/core/poi/lib/webpack/webpack.config.js
+++ b/core/poi/lib/webpack/webpack.config.js
@@ -17,24 +17,30 @@ const normalizeEntry = v => {
 
 module.exports = (config, api) => {
   /** Set entry */
-  let { entry } = api.config
-  if (typeof entry === 'string') {
-    entry = {
-      index: [entry]
+
+  const webpackEntry = {}
+  const { entry, pages } = api.config
+  if (pages) {
+    for (const entryName of Object.keys(pages)) {
+      const value = pages[entryName]
+      webpackEntry[entryName] = [].concat(
+        typeof value === 'string' ? value : value.entry
+      )
     }
+    api.logger.debug('Using `pages` option thus `entry` is ignored')
+  } else if (typeof entry === 'string') {
+    webpackEntry.index = [entry]
   } else if (Array.isArray(entry)) {
-    entry = {
-      index: entry
-    }
-  } else {
-    entry = Object.assign({}, entry)
+    webpackEntry.index = entry
+  } else if (typeof entry === 'object') {
+    Object.assign(webpackEntry, entry)
   }
 
-  for (const name of Object.keys(entry)) {
-    entry[name] = entry[name].map(v => normalizeEntry(v))
+  for (const name of Object.keys(webpackEntry)) {
+    webpackEntry[name] = webpackEntry[name].map(v => normalizeEntry(v))
   }
 
-  config.merge({ entry })
+  config.merge({ entry: webpackEntry })
 
   /** Set extensions */
   config.resolve.extensions.merge(['.js', '.json', '.jsx', '.ts', '.tsx'])