I am using the PaperMod theme, and this article uses it as an example.

Table of Contents

If you want to display a table of contents on the article page, note the following configuration:

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params:
  showToc: true # Show table of contents globally
  tocopen: true # Expand the table of contents globally (the table is collapsed by default)

Multilingual

It’s easy to make mistakes here. If you, like me, want a multilingual blog, pay attention to:

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defaultContentLanguage: zh-cn
defaultContentLanguageInSubdir: true

defaultContentLanguage: zh-cn

  • Sets the default language to Simplified Chinese
  • Affects the URL structure generated by Hugo
  • Determines the language identifier for default content

The above configuration should not be modified unless you specifically need to change the default language.

defaultContentLanguageInSubdir: true

  • Controls whether default language content is placed in a subdirectory
  • true: default path is /zh-cn/posts/
  • false: default path is /posts/

Example:

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# When defaultContentLanguageInSubdir: true
public/
├── zh-cn/
│   └── posts/
└── en/
    └── posts/

# When defaultContentLanguageInSubdir: false
public/
├── posts/
└── en/
    └── posts/

You need to configure the multilingual content directory:

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languages:
  zh-cn:
    languageName: "简体中文"
    contentDir: "/content/zh-cn" # /content/<lang>
    # ... other multilingual configurations ...
  en:
    languageName: "English"
    contentDir: "/content/en"
    # ...

Under multilingual configuration, the valid paths for search.md and archive.md are:

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content/
├── zh-cn/
│   ├── posts/
│   ├── search.zh-cn.md # search.<lang>.md
│   └── archive.md
└── en/
    ├── posts/
    ├── search.en.md
    └── archive.md

The URLs of both in hugo.yaml can remain generally configured:

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languages:
  zh-cn:
    menu:
      main:
        - identifier: "search"
          name: "搜索"
          url: "/search"
          weight: 1
        - identifier: "archives"
          name: "归档"
          url: "/archives"
          weight: 2

To support search functionality, the following configuration must be done in hugo.yaml:

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outputs:
  home:
    - HTML
    - RSS
    - JSON # JSON is the key to enabling search

Fonts

I wanted to use Ubuntu Mono for English, HarmonyOS Sans SC for Chinese, and JetBrains Mono for code, so I added the following configuration.

Create /themes/PaperMod/assets/css/extended/fonts.css:

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@import url('https://cdn.jsdelivr.net/npm/ubuntu-mono/css/ubuntu-mono.min.css?display=swap');
@import url('https://cdn.jsdelivr.net/npm/harmonyos-sans-font/css/harmonyos-sans.min.css?display=swap');
@import url('https://cdn.jsdelivr.net/npm/jetbrains-mono/css/jetbrains-mono.min.css?display=swap');

body {
  font-family: "Ubuntu Mono", "HarmonyOS Sans SC", sans-serif;
}

code, pre {
  font-family: "JetBrains Mono", monospace;
}

Code Block Background Color

By default, the brightness of the code block background is very low (quite dark). I modified it slightly.

In /themes/PaperMod/assets/css/common/post-single.css around line 206, you can see the variable --code-block-bg controlling the code block background color:

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.post-content pre code {
    display: grid;
    margin: auto 0;
    padding: 10px;
    color: rgb(213, 213, 214);
    background: var(--code-block-bg) !important;
    border-radius: var(--radius);
    overflow-x: auto;
    word-break: break-all;
}

Search globally and find /themes/PaperMod/assets/css/core/theme-vars.css, where this variable is declared in two places:

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:root {
    ...
    --code-block-bg: rgb(43, 43, 43);
    ...
}

.dark {
    ...
    --code-block-bg: rgb(43, 43, 43);
    ...
}

Set both to rgb(43, 43, 43).

Comments

I use Giscus, which leverages GitHub Discussions as a commenting system.

Make sure:

  • The blog repository is public, or visitors can’t view the Discussions.
  • The giscus app is installed, or visitors can’t comment or respond.
  • Discussions is enabled in the repository.

Then, go to the Giscus site and configure as required.

After configuration, under “Enable giscus,” content like the following will appear:

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<script src="https://giscus.app/client.js"
        data-repo="[enter repository here]"
        data-repo-id="[enter repository ID here]"
        data-category="[enter category name here]"
        data-category-id="[enter category ID here]"
        data-mapping="pathname"
        data-strict="0"
        data-reactions-enabled="1"
        data-emit-metadata="0"
        data-input-position="bottom"
        data-theme="preferred_color_scheme"
        data-lang="zh-CN"
        crossorigin="anonymous"
        async>
</script>

Create /layouts/partials/comments.html and copy the <script> tag.

Ensure hugo.yaml has comments enabled:

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params:
  comments: true

Deployment

After running hugo -D, Hugo builds the static blog into /public. Typically, delete /public before each build to avoid issues.

I only want to deploy the static blog, not the entire Hugo framework, so I wrote a Shell script:

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@echo off
hugo -D
cd public
git init
git remote add origin git@github.com:zzzhizhiw/zzzhizhi-blog.git
git checkout -b main
git fetch
git add -A
git commit -m "temp"
git reset --soft origin/main
git commit -m "update %date%"
git push
cd ..

Due to maintenance difficulties, I switched to using separate source and deployment branches within the same repository. Therefore:

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# Create public branch in main repository
git checkout --orphan public
git reset --hard
git commit --allow-empty -m "Init public branch"
git push origin public
git checkout main

# Link public directory to public branch
git worktree add -B public public origin/public

# Generate site and push
hugo -D
cd public
git add -A
git commit -m "Push %date%"
git push origin public
cd ..

With Cloudflare Pages CI/CD, a single script can push updates with one command.

Do not configure baseURL in hugo.yaml; otherwise, all unique preview URLs will be redirected to baseURL.

hugo.yaml Example

Below is the hugo.yaml I use:

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languageCode: zh-cn
theme: PaperMod

pagination:
  paperSize: 5

enableRobotsTXT: true
buildDrafts: false
buildFuture: true
buildExpired: true
enableEmoji: true
enableGitInfo: true

minify:
  disableXML: true
  minifyOutput: true

params:
  env: production
  keywords: [致之, zzzhizhi, Blog]
  images: ["<link or path of image for opengraph, twitter-cards>"]
  DateFormat: "2006-01-02"
  defaultTheme: auto
  disableThemeToggle: false

  ShowReadingTime: true
  ShowShareButtons: false
  ShowPostNavLinks: true
  ShowBreadCrumbs: true
  ShowCodeCopyButtons: true
  ShowWordCount: true
  ShowRssButtonInSectionTermList: true
  UseHugoToc: true
  disableSpecial1stPost: false
  disableScrollToTop: false
  comments: true
  hidemeta: false
  hideSummary: false
  showToc: true
  tocopen: true

  assets:
    disableHLJS: true
    disableFingerprinting: true

    favicon: "/favicon.ico"
    favicon16x16: "/favicon-16x16.ico"
    favicon32x32: "/favicon-32x32.ico"
    apple_touch_icon: "/apple-touch-icon.jpg"
    safari_pinned_tab: "/safari-pinned-tab.svg"

  homeInfoParams:
    Title: "Hi there \U0001F44B"
    Content: Welcome to my blog

  analytics:
    google:
      SiteVerificationTag: "XYZabc"
    bing:
      SiteVerificationTag: "XYZabc"
    yandex:
      SiteVerificationTag: "XYZabc"

  cover:
    hidden: true
    hiddenInList: true
    hiddenInSingle: true

  fuseOpts:
    isCaseSensitive: false
    shouldSort: true
    location: 0
    distance: 1000
    threshold: 0.4
    minMatchCharLength: 0
    limit: 10
    keys: ["title", "permalink", "summary", "content"]

defaultContentLanguage: zh-cn
defaultContentLanguageInSubdir: true

languages:
  zh-cn:
    languageName: "简体中文"
    contentDir: "/content/zh-cn"
    weight: 1
    title: "致之 | zzzhizhi"
    description: "致之的博客"
    params:
      author: "致之"
      label:
        text: "首页"
        icon: "/apple-touch-icon.jpg"
        iconHeight: 35
      
      profileMode:
        enabled: true
        title: "致之"
        subtitle: "写代码是热爱,写到世界充满爱!"
        imageUrl: "/apple-touch-icon.jpg"
        buttons:
          - name: "博客"
            url: "posts"
          - name: "标签"
            url: "tags"
      
      homeInfoParams:
        Title: "你好 👋"
        Content: "欢迎来到我的博客"
      
      socialIcons:
        - name: github
          url: "https://github.com/zzzhizhiw"
        - name: bilibili
          url: "https://space.bilibili.com/437297385"
        - name: email
          url: "mailto:mail@zzzhizhi.top"
        - name: rss
          url: "/zh-cn/index.xml"
      
      editPost:
        URL: "https://github.com/zzzhizhiw/zzzhizhi-blog"
        Text: "编辑"
        appendFilePath: true
    
    menu:
      main:
        - identifier: "search"
          name: "搜索"
          url: "/search"
          weight: 1
        - identifier: "archives"
          name: "归档"
          url: "/archives"
          weight: 2
        - identifier: "categories"
          name: "分类"
          url: "/categories"
          weight: 3
        - identifier: "tags"
          name: "标签"
          url: "/tags"
          weight: 4

  en:
    languageName: "English"
    contentDir: "/content/en"
    weight: 2
    title: "zzzhizhi | 致之"
    description: "zzzhizhi's blog"
    params:
      author: "zzzhizhi"
      label:
        text: "Home"
        icon: "/apple-touch-icon.jpg"
        iconHeight: 35
      
      profileMode:
        enabled: true
        title: "zzzhizhi"
        subtitle: "Coding is love, coding to the world is full of love!"
        imageUrl: "/apple-touch-icon.jpg"
        buttons:
          - name: "Posts"
            url: "posts"
          - name: "Tags"
            url: "tags"
      
      homeInfoParams:
        Title: "Hi there 👋"
        Content: "Welcome to my blog"
      
      socialIcons:
        - name: github
          url: "https://github.com/zzzhizhiw"
        - name: bilibili
          url: "https://space.bilibili.com/437297385"
        - name: email
          url: "mailto:mail@zzzhizhi.top"
        - name: rss
          url: "/en/index.xml"
      
      editPost:
        URL: "https://github.com/zzzhizhiw/zzzhizhi-blog"
        Text: "Edit"
        appendFilePath: true
    
    menu:
      main:
        - identifier: "search"
          name: "Search"
          url: "/search"
          weight: 1
        - identifier: "archives"
          name: "Archives"
          url: "/archives"
          weight: 2
        - identifier: "categories"
          name: "Categories"
          url: "/categories"
          weight: 3
        - identifier: "tags"
          name: "Tags"
          url: "/tags"
          weight: 4

outputs:
  home:
    - HTML
    - RSS
    - JSON

markup:
  highlight:
    noClasses: false
    codeFences: true
    guessSyntax: true
    lineNos: true
    lineNumbersInTable: true
    style: monokai
    
  goldmark:
    renderer:
      unsafe: true
    
  tableOfContents:
    startLevel: 1
    endLevel: 3
    ordered: false