--- author: "Michael Henderson" lastmod: 2016-09-01 date: 2015-11-26 linktitle: Creating a New Theme menu: main: parent: tutorials next: /tutorials/github-pages-blog prev: /tutorials/automated-deployments title: Creating a New Theme weight: 10 --- ## Introduction This tutorial will show you how to create a simple theme in Hugo. I'll introduce Hugo's use of templates, and explain how to organize them into a theme. The theme will grow, minimizing effort while meeting evolving needs. To promote this focus, and to keep everything simple, I'll omit CSS styling. We'll start by creating a tiny, blog-like web site. We'll implement this blog with just one — quite basic — template. Then we'll add an About page, and a few articles. Overall, this web site (along with what you learn here) will provide a good basis for you to continue working with Hugo in the future. By making small variations, you'll be able to create many different kinds of web sites. I will assume you're comfortable with HTML, Markdown formatting, and the Bash command line (possibly using [Git for Windows](https://git-for-windows.github.io/)). A few symbols might call for explanation: in this tutorial, the commands you'll enter will be preceded by a `$` prompt — and their output will follow. `vi` means to open your editor; then `:wq` means to save the file. Sometimes I'll add comments to explain a point — these start with `#`. So, for example: ```bash # this is a comment $ echo this is a command this is a command # edit the file $ vi foo.md +++ date = "2040-01-18" title = "creating a new theme" +++ Bah! Humbug! :wq # show it $ cat foo.md +++ date = "2040-01-18" title = "creating a new theme" +++ Bah! Humbug! ``` ## Definitions Three concepts: 1. _Non-content_ files; 1. _Templates_ (as Hugo defines them); and 1. _Front-matter_ are essential for creating your first Hugo theme, as well as your first Hugo website. ### Non-Content The source files of a web site (destined to be rendered by Hugo) are divided into two kinds: 1. The files containing its textual content (and nothing else — except Hugo front-matter: see below, and Markdown styling); and 1. All other files. (These contain ***no*** textual content — ideally.) Temporarily, let's affix the adjective _non-content_ to the latter kind of source files. Non-content files are responsible for your web site's look and feel. (Follow these article links from [Bop Design](https://www.bopdesign.com/bop-blog/2013/11/what-is-the-look-and-feel-of-a-website-and-why-its-important/) and [Wikipedia](https://en.wikipedia.org/w/index.php?title=Look_and_feel&oldid=731052704) if you wish for more information.) They comprise its images, its CSS (for the sizes, colors and fonts), its JavaScript (for the actions and reactions), and its Hugo templates (which contain the rules Hugo uses to transform your content into HTML). Given these files, Hugo will render a static web site — informed by your content — which contains the above images, HTML, CSS and JavaScript, ready to be served to visitors. Actually, a few of your invariant textual snippets could reside in non-content files as well. However, because someone might reuse your theme (eventually), preferably you should keep those textual snippets in their own content files. #### Where Regarding where to create your non-content files, you have two options. The simplest is the `./layouts/` and `./static/` filesystem trees. If you choose this way, then you needn't worry about configuring Hugo to find them. Invariably, these are the first two places Hugo seeks for templates (as well as images, CSS and JavaScript); so in that case, it's guaranteed to find all your non-content files. The second option is to create them in a filesystem tree located somewhere under the `./themes/` directory. If you choose that way, then you must always tell Hugo where to search for them — that's extra work, though. So, why bother? #### Theme Well — the difference between creating your non-content files under `./layouts/` and `./static/` and creating them under `./themes/` is admittedly very subtle. Non-content files created under `./layouts/` and `./static/` cannot be customized without editing them directly. On the other hand, non-content files created under `./themes/` can be customized, in another way. That way is both conventional (for Hugo web sites) and non-destructive. Therefore, creating your non-content files under `./themes/` makes it easier for other people to use them. The rest of this tutorial will call a set of non-content files a ***theme*** if they comprise a filesystem tree rooted anywhere under the `./themes/` directory. Note that you can use this tutorial to create your set of non-content files under `./layouts/` and `./static/` if you wish. The only difference is that you wouldn't need to edit your web site's configuration file in order to select a theme. ### Home The home page, or landing page, is the first page that many visitors to a web site will see. Often this is `/index.html`, located at the root URL of the web site. Since Hugo writes files into the `./public/` tree, your home page will reside in file `./public/index.html`. ### Configure When Hugo runs, it first looks for an overall configuration file, in order to read its settings, and applies them to the entire web site. These settings override Hugo's default values. The file can be in TOML, YAML, or JSON format. I prefer TOML for my configuration files. If you prefer JSON or YAML, you'll need to translate my examples. You'll also need to change the basename, since Hugo uses its extension to determine how to process it. Hugo translates Markdown files into HTML. By default, Hugo searches for Markdown files in the `./content/` tree and template files under the `./themes/` directory. It will render HTML files to the `./public/` tree. You can override any of these defaults by specifying alternative locations in the configuration file. ### Template _Templates_ direct Hugo in rendering content into HTML; they bridge content and presentation. Rules in template files determine which content is published and where, and precisely how it will be rendered into HTML files. Templates also guide your web site's presentation by specifying the CSS styling to use. Hugo uses its knowledge of each piece of content to seek a template file to use in rendering it. If it can't find a template that matches the content, it will zoom out, one conceptual level; it will then resume the search from there. It will continue to do so, till it finds a matching template, or runs out of templates to try. Its last resort is your web site's default template, which could conceivably be missing. If it finds no suitable template, it simply forgoes rendering that piece of content. It's important to note that _front-matter_ (see next) can influence Hugo's template file selection process. ### Content Content is stored in text files which contain two sections. The first is called _front-matter_: this is information about the content. The second contains Markdown-formatted text, destined for conversion to HTML format. #### Front-Matter The _front-matter_ is meta-information describing the content. Like the web site's configuration file, it can be written in the TOML, YAML, or JSON formats. Unlike the configuration file, Hugo doesn't use the file's extension to determine the format. Instead, it looks for markers in the file which signal this. TOML is surrounded by "`+++`" and YAML by "`---`", but JSON is enclosed in curly braces. I prefer to use TOML. You'll need to translate my examples if you prefer YAML or JSON. Hugo informs its chosen template files with the front-matter information before rendering the content in HTML. #### Markdown Content is written in Markdown format, which makes it easy to create. Hugo runs the content through a Markdown engine to transform it into HTML, which it then renders to the output file. ### Template Kinds Here I'll discuss three kinds of Hugo templates: _Single_, _List_, and _Partial_. All these kinds take one or more pieces of content as input, and transform the pieces, based on commands in the template. #### Single A _Single_ template is used to render one piece of content. For example, an article or a post is a single piece of content; thus, it uses a Single template. #### List A _List_ template renders a group of related content items. This could be a summary of recent postings, or all of the articles in a category. List templates can contain multiple groups (or categories). The home page template is a special kind of List template. This is because Hugo assumes that your home page will act as a portal to all of the remaining content on your web site. #### Partial A _Partial_ template is a template that's incapable of producing a web page, by itself. To include a Partial template in your web site, another template must call it, using the `partial` command. Partial templates are very handy for rolling up common behavior. For example, you might want the same banner to appear on all of your web site's pages — so, rather than copy your banner's text into multiple content files, as well as the other information relevant to your banner into multiple template files (both Single and List), you can instead create just one content file and one Partial template. That way, whenever you decide to change the banner, you can do so by editing one file only (or maybe two). ## Site Let's let Hugo help you create your new web site. The `hugo new site` command will generate a skeleton — it will give you a basic directory structure, along with a usable configuration file: ```bash $ cd /tmp/ $ hugo new site mySite $ cd mySite/ $ ls -l total 8 drwxr-xr-x 2 {user} {group} 68 {date} archetypes -rw-r--r-- 1 {user} {group} 107 {date} config.toml drwxr-xr-x 2 {user} {group} 68 {date} content drwxr-xr-x 2 {user} {group} 68 {date} data drwxr-xr-x 2 {user} {group} 68 {date} layouts drwxr-xr-x 2 {user} {group} 68 {date} static drwxr-xr-x 2 {user} {group} 68 {date} themes ``` Take a look in the `./content/` and `./themes/` directories to confirm they are empty. The other directories (`./archetypes/`, `./data/`, `./layouts/` and `./static/`) are used for customizing a named theme. That's a topic for a different tutorial, so please ignore them for now. ### Render Running the `hugo` command with no options will read all of the available content and render the HTML files. Also, it will copy all the static files (that's everything besides content). Since we have an empty web site, Hugo won't be doing much. However, generally speaking, Hugo does this very quickly: ```bash $ hugo --verbose INFO: {date} {source} Using config file: /tmp/mySite/config.toml WARN: {date} {source} No theme set INFO: {date} {source} /tmp/mySite/static/ is the only static directory available to sync from INFO: {date} {source} syncing static files to /tmp/mySite/public/ Started building site WARN: {date} {source} Unable to locate layout for homepage: [index.html _default/list.html] WARN: {date} {source} "/" is rendered empty ============================================================= Your rendered home page is blank: /index.html is zero-length * Did you specify a theme on the command-line or in your "config.toml" file? (Current theme: "") ============================================================= WARN: {date} {source} Unable to locate layout for 404 page: [404.html] WARN: {date} {source} "404.html" is rendered empty 0 draft content 0 future content 0 expired content 0 pages created 0 non-page files copied 0 paginator pages created 0 tags created 0 categories created in 4 ms ``` The "`--verbose`" flag gives extra information that will be helpful whenever we are developing a template. Every line of the output starting with "INFO:" or "WARN:" is present because we used that flag. The lines that start with "WARN:" are warning messages. We'll go over them later. We can verify that the command worked by looking at the directory again: ```bash $ ls -l total 8 drwxr-xr-x 2 {user} {group} 68 {date} archetypes -rw-r--r-- 1 {user} {group} 107 {date} config.toml drwxr-xr-x 2 {user} {group} 68 {date} content drwxr-xr-x 2 {user} {group} 68 {date} data drwxr-xr-x 2 {user} {group} 68 {date} layouts drwxr-xr-x 6 {user} {group} 204 {date} public drwxr-xr-x 2 {user} {group} 68 {date} static drwxr-xr-x 2 {user} {group} 68 {date} themes ``` See that new `./public/` directory? Hugo placed all its rendered content there. When you're ready to publish your web site, that's the place to start. For now, though, let's just confirm we have the files we expect for a web site with no content: ```bash $ ls -l public/ total 16 -rw-r--r-- 1 {user} {group} 0 {date} 404.html -rw-r--r-- 1 {user} {group} 0 {date} index.html -rw-r--r-- 1 {user} {group} 511 {date} index.xml -rw-r--r-- 1 {user} {group} 210 {date} sitemap.xml ``` Hugo rendered two XML files and some empty HTML files. The XML files are used for RSS feeds. Hugo has an opinion about what those feeds should contain, so it populated those files. Hugo has no opinion on the look or content of your web site, so it left those files empty. If you look back at the output from the `hugo server` command, you'll notice that Hugo said: ```bash 0 pages created ``` That's because Hugo doesn't count the home page, the 404 error page, or the RSS feed files as pages. ### Serve Let's verify you can run the built-in web server — that'll shorten your development cycle, dramatically. Start it, by running the `hugo server` command. If successful, you'll see output similar to the following: ```bash $ hugo server --verbose INFO: {date} {source} Using config file: /tmp/mySite/config.toml WARN: {date} {source} No theme set INFO: {date} {source} /tmp/mySite/static/ is the only static directory available to sync from INFO: {date} {source} syncing static files to / WARN: {date} {source} Unable to locate layout for homepage: [index.html _default/list.html] WARN: {date} {source} "/" is rendered empty ============================================================= Your rendered home page is blank: /index.html is zero-length * Did you specify a theme on the command-line or in your "config.toml" file? (Current theme: "") ============================================================= WARN: {date} {source} Unable to locate layout for 404 page: [404.html] WARN: {date} {source} "404.html" is rendered empty 0 draft content 0 future content 0 expired content 0 pages created 0 non-page files copied 0 paginator pages created 0 tags created 0 categories created in 3 ms Watching for changes in /tmp/mySite/{data,content,layouts,static} Serving pages from memory Web Server is available at http://localhost:1313/ (bind address 127.0.0.1) Press Ctrl+C to stop ``` Connect to the listed URL (it's on the line that begins with `Web Server is available`). If everything's working correctly, you should get a page that shows nothing. ### Warnings Let's go back and look at some of those warnings again: ```bash WARN: {date} {source} Unable to locate layout for 404 page: [404.html] WARN: {date} {source} Unable to locate layout for homepage: [index.html _default/list.html] ``` The 404 warning is easy to explain — it's because we haven't created the template file `layouts/404.html`. Hugo uses this to render an HTML file which serves "page not found" errors. However, the 404 page is a topic for a separate tutorial. Regarding the home page warning: the first layout Hugo looked for was `layouts/index.html`. Note that Hugo uses this file for the home page only. It's good that Hugo lists the files it seeks, when we give it the verbose flag. For the home page, these files are `layouts/index.html` and `layouts/_default/list.html`. Later, we'll cover some rules which explain these paths (including their basenames). For now, just remember that Hugo couldn't find a template to use for the home page, and it said so. All right! So, now — after these few steps — you have a working installation, and a web site foundation you can build upon. All that's left is to add some content, as well as a theme to display it. ## Theme Hugo doesn't ship with a default theme. However, a large number of themes are easily available: for example, at [hugoThemes](https://github.com/gohugoio/hugoThemes). Also, Hugo comes with a command to generate them. We're going to generate a new theme called Zafta. The goal of this tutorial is simply to show you how to create (in a theme) the minimal files Hugo needs in order to display your content. Therefore, the theme will exclude CSS — it'll be functional, not beautiful. Every theme has its own opinions on content and layout. For example, this Zafta theme prefers the Type "article" over the Types "blog" or "post." Strong opinions make for simpler templates, but unconventional opinions make themes tougher for other users. So when you develop a theme, you should consider the value of adopting the terms used by themes similar to yours. ### Skeleton Let's press Ctrl+C and use the `hugo new theme` command to generate the skeleton of a theme. The result is a directory structure containing empty files for you to fill out: ```bash $ hugo new theme zafta $ find themes -type f | xargs ls -l -rw-r--r-- 1 {user} {group} 8 {date} themes/zafta/archetypes/default.md -rw-r--r-- 1 {user} {group} 0 {date} themes/zafta/layouts/404.html -rw-r--r-- 1 {user} {group} 0 {date} themes/zafta/layouts/_default/list.html -rw-r--r-- 1 {user} {group} 0 {date} themes/zafta/layouts/_default/single.html -rw-r--r-- 1 {user} {group} 0 {date} themes/zafta/layouts/index.html -rw-r--r-- 1 {user} {group} 0 {date} themes/zafta/layouts/partials/footer.html -rw-r--r-- 1 {user} {group} 0 {date} themes/zafta/layouts/partials/header.html -rw-r--r-- 1 {user} {group} 1081 {date} themes/zafta/LICENSE.md -rw-r--r-- 1 {user} {group} 450 {date} themes/zafta/theme.toml ``` The skeleton includes templates (files ending in `.html`), a license file, a description of your theme (`theme.toml`), and a default archetype file. When you're developing a real theme, please remember to fill out files `theme.toml` and `LICENSE.md`. They're optional, but if you're going to distribute your theme, it tells the world who to praise (or blame). It's also important to declare your choice of license, so people will know whether (or where) they can use your theme. Note that the skeleton theme's template files are empty. Don't worry; we'll change that shortly: ```bash $ find themes/zafta -name '*.html' | xargs ls -l -rw-r--r-- 1 {user} {group} 0 {date} themes/zafta/layouts/404.html -rw-r--r-- 1 {user} {group} 0 {date} themes/zafta/layouts/_default/list.html -rw-r--r-- 1 {user} {group} 0 {date} themes/zafta/layouts/_default/single.html -rw-r--r-- 1 {user} {group} 0 {date} themes/zafta/layouts/index.html -rw-r--r-- 1 {user} {group} 0 {date} themes/zafta/layouts/partials/footer.html -rw-r--r-- 1 {user} {group} 0 {date} themes/zafta/layouts/partials/header.html ``` ### Select Now that we've created a theme we can work with, it's a good idea to add its name to the configuration file. This is optional, because it's possible to add "-t zafta" to all your commands. I like to put it in the configuration file because I like shorter command lines. If you don't put it in the configuration file, or specify it on the command line, sometimes you won't get the template you're expecting. So, let's edit your configuration file to add the theme name: ```toml $ vi config.toml theme = "zafta" baseURL = "http://example.org/" title = "My New Hugo Site" languageCode = "en-us" :wq ``` ### Themed Render Now that we have a theme (albeit empty), let's render the web site again: ```bash $ hugo --verbose INFO: {date} {source} Using config file: /tmp/mySite/config.toml INFO: {date} {source} using a UnionFS for static directory comprised of: INFO: {date} {source} Base: /tmp/mySite/themes/zafta/static INFO: {date} {source} Overlay: /tmp/mySite/static/ INFO: {date} {source} syncing static files to /tmp/mySite/public/ Started building site WARN: {date} {source} "/" is rendered empty ============================================================= Your rendered home page is blank: /index.html is zero-length * Did you specify a theme on the command-line or in your "config.toml" file? (Current theme: "zafta") ============================================================= WARN: {date} {source} "404.html" is rendered empty 0 draft content 0 future content 0 expired content 0 pages created 0 non-page files copied 0 paginator pages created 0 tags created 0 categories created in 4 ms ``` Did you notice the output is different? Two previous warning messages have disappeared, which contained the words "Unable to locate layout" for your home page and the 404 page. And, a new informational message tells us Hugo is accessing your theme's tree (`./themes/zafta/`). Let's check the `./public/` directory to see what Hugo rendered: ```bash $ ls -l public/ total 16 -rw-r--r-- 1 {user} {group} 0 {date} 404.html drwxr-xr-x 2 {user} {group} 68 {date} css -rw-r--r-- 1 {user} {group} 0 {date} index.html -rw-r--r-- 1 {user} {group} 511 {date} index.xml drwxr-xr-x 2 {user} {group} 68 {date} js -rw-r--r-- 1 {user} {group} 210 {date} sitemap.xml ``` It's similar to what we had before, without a theme. We'd expect so, since all your theme's templates are empty. But notice: in `./public/`, Hugo created the `css/` and `js/` directories. That's because Hugo found them in your theme's `static/` directory: ```bash $ ls -l themes/zafta/static/ total 0 drwxr-xr-x 2 {user} {group} 68 {date} css drwxr-xr-x 2 {user} {group} 68 {date} js ``` #### Home In a Hugo web site, each kind of page is informed (primarily) by just one of the many different kinds of templates available; yet the home page is special, because it gets its own kind of template, and its own template file. Hugo uses template file `layouts/index.html` to render the home page's HTML. Although Hugo's documentation may state that this file is the home page's only required template, Hugo's earlier warning message showed it actually looks for two different templates: ```bash WARN: {date} {source} Unable to locate layout for homepage: [index.html _default/list.html] ``` #### Empty When Hugo generated your theme, it included an empty home page template. Whenever Hugo renders your web site, it seeks that same template and uses it to render the HTML for the home page. Currently, the template file is empty, so the output HTML file is empty, too. Whenever we add rules to that template, Hugo will use them in rendering the home page: ```bash $ find * -name index.html | xargs ls -l -rw-r--r-- 1 {user} {group} 0 {date} public/index.html -rw-r--r-- 1 {user} {group} 0 {date} themes/zafta/layouts/index.html ``` As we'll see later, Hugo follows this same pattern for all its templates. ## Static Files Hugo does two things when it renders your web site. Besides using templates to transform your content into HTML, it also incorporates your static files. Hugo's rule is simple: unlike with templates and content, static files aren't transformed. Hugo copies them over, exactly as they are. Hugo assumes that your web site will use both CSS and JavaScript, so it generates some directories in your theme to hold them. Remember opinions? Well, Hugo's opinion is that you'll store your CSS in directory `static/css/`, and your JavaScript in directory `static/js/`. If you don't like that, you can relocate these directories or change their names (as long as they remain in your theme's `static/` tree), or delete them completely. Hugo is nice enough to offer its opinion; yet it still behaves nicely, if you disagree: ```bash $ find themes/zafta/* -type d | xargs ls -dl drwxr-xr-x 3 {user} {group} 102 {date} themes/zafta/archetypes drwxr-xr-x 6 {user} {group} 204 {date} themes/zafta/layouts drwxr-xr-x 4 {user} {group} 136 {date} themes/zafta/layouts/_default drwxr-xr-x 4 {user} {group} 136 {date} themes/zafta/layouts/partials drwxr-xr-x 4 {user} {group} 136 {date} themes/zafta/static drwxr-xr-x 2 {user} {group} 68 {date} themes/zafta/static/css drwxr-xr-x 2 {user} {group} 68 {date} themes/zafta/static/js ``` ## Theme Development Generally (using any kind of software), working on a theme means changing your files, serving your web site again, and then verifying the resulting improvements in your browser. With Hugo, this way of working is quite easy: - First purge the `./public/` tree. (This is optional but useful, if you want to start with a clean slate.) - Run the built-in Hugo web server. - Open your web site in a browser — and then: 1. Edit your theme; 1. Glance at your browser window to see your changes; and 1. Repeat. I'll throw in one more opinion: ***never*** directly edit a theme on a live web site. Instead, always develop ***using a copy***. First, make some changes to your theme and test them. Afterwards, **when you've got them working,** copy them to your web site. For added safety, use a tool like Git to keep some revision history of your content, and of your theme. Believe me: it's too easy to lose your changes, and your mind! Check out the main Hugo web site for information about using Git with Hugo. ### Purge When rendering your web site, Hugo will create new files in the `./public/` tree and update existing ones. But it won't delete files that are no longer used. For example, files previously rendered with (what is now) the wrong basename, or in the wrong directory, will remain. Later, if you leave them, they'll likely confuse you. Cleaning out your `./public/` files prior to rendering can help. When Hugo is running in web server mode (as of version 0.15), it doesn't actually write the files. Instead, it keeps all the rendered files in memory. So, you can "clean" up your files simply by stopping and restarting the web server. ### Serve #### Watch Hugo's watch functionality monitors the relevant content, theme and (overriding) site trees for filesystem changes, and renders your web site again automatically, when changes are detected. By default, watch is enabled when in web server mode (`hugo server`), but disabled for the web site renderer (`hugo`). In some use cases, Hugo's web site renderer should continue running and watch — simply type `hugo --watch` on the command line. Sometimes with Docker containers (and Heroku slugs), the site sources may live on a read-only filesystem. In that scenario, it makes no sense for Hugo's web server to watch for file changes — so use `hugo server --watch=false`. #### Reload Hugo's built in web server includes [LiveReload](/extras/livereload/) functionality. When any page is updated in the filesystem, the web browser is told to refresh its currently-open tabs from your web site. Usually, this happens faster than you can say, "Wow, that's totally amazing!" ### Workflow Again, I recommend you use the following commands as the basis for your workflow: ```bash # purge old files. Hugo will recreate the public directory $ rm -rf public/ # run Hugo in watch mode with LiveReload; # when you're done, stop the web server $ hugo server --verbose Press Ctrl+C to stop ``` Below is some sample output showing Hugo detecting a change in the home page template. (Actually, the change is the edit we're about to do.) Once it's rendered again, the web browser automatically reloads the page. (As I said above — it's amazing:) ```bash $ rm -rf public/ $ hugo server --verbose INFO: {date} {source} Using config file: /tmp/mySite/config.toml INFO: {date} {source} using a UnionFS for static directory comprised of: INFO: {date} {source} Base: /tmp/mySite/themes/zafta/static INFO: {date} {source} Overlay: /tmp/mySite/static/ INFO: {date} {source} syncing static files to / Started building site WARN: {date} {source} "/" is rendered empty ============================================================= Your rendered home page is blank: /index.html is zero-length * Did you specify a theme on the command-line or in your "config.toml" file? (Current theme: "") ============================================================= WARN: {date} {source} "404.html" is rendered empty 0 draft content 0 future content 0 expired content 0 pages created 0 non-page files copied 0 paginator pages created 0 tags created 0 categories created in 4 ms Watching for changes in /tmp/mySite/{data,content,layouts,static,themes} Serving pages from memory Web Server is available at http://localhost:1313/ (bind address 127.0.0.1) Press Ctrl+C to stop INFO: {date} {source} Received System Events: ["/tmp/mySite/themes/zafta/layouts/index.html": WRITE] Change detected, rebuilding site {date} Template changed /tmp/mySite/themes/zafta/layouts/index.html WARN: {date} {source} "404.html" is rendered empty 0 draft content 0 future content 0 expired content 0 pages created 0 non-page files copied 0 paginator pages created 0 tags created 0 categories created in 3 ms ``` ## Home Template The home page is one of the few special pages Hugo renders automatically. As mentioned earlier, it looks in your theme's `layouts/` tree for one of two files: 1. `index.html` 1. `_default/list.html` We could edit the default template, but a good design principle is to edit the most specific template available. That's not a hard-and-fast rule (in fact, in this tutorial, we'll break it a few times), but it's a good generalization. ### Static Right now, your home page is empty because you've added no content, and because its template includes no logic. Let's change that by adding some text to your home page template (`layouts/index.html`): ```html $ vi themes/zafta/layouts/index.html
Hugo says hello!
:wq ``` Let's press Ctrl+C and render the web site, and then verify the results: ```html $ rm -rf public/ $ hugo --verbose INFO: {date} {source} Using config file: /tmp/mySite/config.toml INFO: {date} {source} using a UnionFS for static directory comprised of: INFO: {date} {source} Base: /tmp/mySite/themes/zafta/static INFO: {date} {source} Overlay: /tmp/mySite/static/ INFO: {date} {source} syncing static files to /tmp/mySite/public/ Started building site WARN: {date} {source} "404.html" is rendered empty 0 draft content 0 future content 0 expired content 0 pages created 0 non-page files copied 0 paginator pages created 0 tags created 0 categories created in 4 ms $ ls -l public/index.html -rw-r--r-- 1 {user} {group} 72 {date} public/index.html $ cat public/index.htmlHugo says hello!
``` ### Dynamic A ***dynamic*** home page? Because Hugo is a _static web site_ generator, the word _dynamic_ seems odd, doesn't it? But this means arranging for your home page to reflect the content in your web site automatically, each time Hugo renders it. To accomplish that, later we'll add an iterator to your home page template. ## Article Now that Hugo is successfully rendering your home page with static content, let's add more pages to your web site. We'll display some new articles as a list on your home page; and we'll display each article on its own page, too. Hugo has a command to generate an entry skeleton for new content, just as it does for web sites and themes: ```bash $ hugo --verbose new article/First.md INFO: {date} {source} Using config file: /tmp/mySite/config.toml INFO: {date} {source} attempting to create article/First.md of article INFO: {date} {source} curpath: /tmp/mySite/themes/zafta/archetypes/default.md INFO: {date} {source} creating /tmp/mySite/content/article/First.md /tmp/mySite/content/article/First.md created $ ls -l content/article/ total 8 -rw-r--r-- 1 {user} {group} 61 {date} First.md ``` Let's generate a second article, while we're here: ```bash $ hugo --verbose new article/Second.md INFO: {date} {source} Using config file: /tmp/mySite/config.toml INFO: {date} {source} attempting to create article/Second.md of article INFO: {date} {source} curpath: /tmp/mySite/themes/zafta/archetypes/default.md INFO: {date} {source} creating /tmp/mySite/content/article/Second.md /tmp/mySite/content/article/Second.md created $ ls -l content/article/ total 16 -rw-r--r-- 1 {user} {group} 61 {date} First.md -rw-r--r-- 1 {user} {group} 62 {date} Second.md ``` Let's edit both those articles. Be careful to preserve their front-matter, but append some text to their bodies, as follows: ```bash $ vi content/article/First.md In vel ligula tortor. Aliquam erat volutpat. Pellentesque at felis eu quam tincidunt dignissim. Nulla facilisi. Pellentesque tempus nisi et interdum convallis. In quam ante, vulputate at massa et, rutrum gravida dui. Phasellus tristique libero at ex. :wq $ vi content/article/Second.md Fusce lacus magna, maximus nec sapien eu, porta efficitur neque. Aliquam erat volutpat. Vestibulum enim nibh, posuere eu diam nec, varius sagittis turpis. Praesent quis sapien egestas mauris accumsan pulvinar. Ut mattis gravida venenatis. Vivamus lobortis risus id nisi rutrum, at iaculis. :wq ``` So, for example, `./content/article/Second.md` becomes: ```toml $ cat content/article/Second.md +++ date = "2040-01-18T21:08:08-06:00" title = "Second" +++ Fusce lacus magna, maximus nec sapien eu, porta efficitur neque. Aliquam erat volutpat. Vestibulum enim nibh, posuere eu diam nec, varius sagittis turpis. Praesent quis sapien egestas mauris accumsan pulvinar. Ut mattis gravida venenatis. Vivamus lobortis risus id nisi rutrum, at iaculis. ``` Let's render the web site, and then verify the results: ```bash $ rm -rf public/ $ hugo --verbose INFO: {date} {source} Using config file: /tmp/mySite/config.toml INFO: {date} {source} using a UnionFS for static directory comprised of: INFO: {date} {source} Base: /tmp/mySite/themes/zafta/static INFO: {date} {source} Overlay: /tmp/mySite/static/ INFO: {date} {source} syncing static files to /tmp/mySite/public/ Started building site INFO: {date} {source} found taxonomies: map[string]string{"tag":"tags", "category":"categories"} WARN: {date} {source} "article" is rendered empty WARN: {date} {source} "article/Second.html" is rendered empty WARN: {date} {source} "article/First.html" is rendered empty WARN: {date} {source} "404.html" is rendered empty 0 draft content 0 future content 0 expired content 2 pages created 0 non-page files copied 0 paginator pages created 0 tags created 0 categories created in 7 ms ``` The output says Hugo rendered ("created") two pages. Those pages are your new articles: ```bash $ find public -type f -name '*.html' | xargs ls -l -rw-r--r-- 1 {user} {group} 0 {date} public/404.html -rw-r--r-- 1 {user} {group} 0 {date} public/article/First/index.html -rw-r--r-- 1 {user} {group} 0 {date} public/article/index.html -rw-r--r-- 1 {user} {group} 0 {date} public/article/Second/index.html -rw-r--r-- 1 {user} {group} 72 {date} public/index.html ``` The new pages are empty, because Hugo rendered their HTML from empty template files. The home page doesn't show us the new content, either: ```html $ cat public/index.htmlHugo says hello!
``` So, we have to edit the templates, in order to pick up the articles. ### Single & List Here again I'll discuss three kinds of Hugo templates. One kind is the home page template we edited previously; it's applicable only to the home page. Another kind is Single templates, which render output for just one content file. The third kind are List templates, which group multiple pieces of content before rendering output. It's important to note that, generally, List templates (except the home page template) are named `list.html`; and Single templates are named `single.html`. Hugo also has three other kinds of templates: Partials, _Content Views_, and _Terms_. We'll give examples of some Partial templates; but otherwise, we won't go into much detail about these. ### Home You'll want your home page to list the articles you just created. So, let's alter its template file (`layouts/index.html`) to show them. Hugo runs each template's logic whenever it renders that template's web page (of course): ```html $ vi themes/zafta/layouts/index.html {{- range first 10 .Data.Pages }}In vel ligula tortor. Aliquam erat volutpat. Pellentesque at felis eu quam tincidunt dignissim. Nulla facilisi.
Pellentesque tempus nisi et interdum convallis. In quam ante, vulputate at massa et, rutrum gravida dui. Phasellus tristique libero at ex.
Fusce lacus magna, maximus nec sapien eu, porta efficitur neque. Aliquam erat volutpat. Vestibulum enim nibh, posuere eu diam nec, varius sagittis turpis.
Praesent quis sapien egestas mauris accumsan pulvinar. Ut mattis gravida venenatis. Vivamus lobortis risus id nisi rutrum, at iaculis.
Neque porro quisquam est qui dolorem ipsum quia dolor sit amet consectetur adipisci velit.