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date	title	slug	weight	toc	draft	menu
2017-04-15T14:56:00+02:00	Customizing Gitea	customizing-gitea	9	false	false	[{sidebar [{parent advanced} {name Customizing Gitea} {identifier customizing-gitea} {weight 9}]}]

Customizing Gitea

Customizing Gitea is typically done using the CustomPath folder - by default this is the custom folder from the running directory, but may be different if your build has set this differently. This is the central place to override configuration settings, templates, etc. You can check the CustomPath using gitea help. You can also find the path on the Configuration tab in the Site Administration page. You can override the CustomPath by setting either the GITEA_CUSTOM environment variable or by using the --custom-path option on the gitea binary. (The option will override the environment variable.)

If Gitea is deployed from binary, all default paths will be relative to the Gitea binary. If installed from a distribution, these paths will likely be modified to the Linux Filesystem Standard. Gitea will attempt to create required folders, including custom/. Distributions may provide a symlink for custom using /etc/gitea/.

Application settings can be found in file CustomConf which is by default, CustomPath/conf/app.ini but may be different if your build has set this differently. Again gitea help will allow you review this variable and you can override it using the --config option on the gitea binary.

If the CustomPath folder can't be found despite checking gitea help, check the GITEA_CUSTOM environment variable; this can be used to override the default path to something else. GITEA_CUSTOM might, for example, be set by an init script.

List of Environment Variables

Note: Gitea must perform a full restart to see configuration changes.

Serving custom public files

To make Gitea serve custom public files (like pages and images), use the folder custom/public/ as the webroot. Symbolic links will be followed.

For example, a file image.png stored in custom/public/, can be accessed with the url http://gitea.domain.tld/image.png.

Changing the default avatar

Place the png image at the following path: custom/public/img/avatar_default.png

Customizing Gitea pages and resources

Gitea's executable contains all the resources required to run: templates, images, style-sheets and translations. Any of them can be overridden by placing a replacement in a matching path inside the custom directory. For example, to replace the default .gitignore provided for C++ repositories, we want to replace options/gitignore/C++. To do this, a replacement must be placed in custom/options/gitignore/C++ (see about the location of the custom directory at the top of this document).

Every single page of Gitea can be changed. Dynamic content is generated using go templates, which can be modified by placing replacements below the custom/templates directory.

To obtain any embedded file (including templates), the [gitea embedded tool]({{< relref "doc/advanced/cmd-embedded.en-us.md" >}}) can be used. Alternatively, they can be found in the templates directory of Gitea source (Note: the example link is from the master branch. Make sure to use templates compatible with the release you are using).

Be aware that any statement contained inside {{ and }} are Gitea's template syntax and shouldn't be touched without fully understanding these components.

Customizing startpage / homepage

Copy home.tmpl for your version of Gitea from templates to custom/templates. Edit as you wish. Dont forget to restart your gitea to apply the changes.

Adding links and tabs

If all you want is to add extra links to the top navigation bar or footer, or extra tabs to the repository view, you can put them in extra_links.tmpl (links added to the navbar), extra_links_footer.tmpl (links added to the left side of footer), and extra_tabs.tmpl inside your custom/templates/custom/ directory.

For instance, let's say you are in Germany and must add the famously legally-required "Impressum"/about page, listing who is responsible for the site's content: just place it under your "custom/public/" directory (for instance custom/public/impressum.html) and put a link to it in either custom/templates/custom/extra_links.tmpl or custom/templates/custom/extra_links_footer.tmpl.

To match the current style, the link should have the class name "item", and you can use {{AppSubUrl}} to get the base URL: <a class="item" href="{{AppSubUrl}}/impressum.html">Impressum</a>

For more information, see Adding Legal Pages.

You can add new tabs in the same way, putting them in extra_tabs.tmpl. The exact HTML needed to match the style of other tabs is in the file templates/repo/header.tmpl (source in GitHub)

Other additions to the page

Apart from extra_links.tmpl and extra_tabs.tmpl, there are other useful templates you can put in your custom/templates/custom/ directory:

header.tmpl, just before the end of the <head> tag where you can add custom CSS files for instance.
body_outer_pre.tmpl, right after the start of <body>.
body_inner_pre.tmpl, before the top navigation bar, but already inside the main container <div class="full height">.
body_inner_post.tmpl, before the end of the main container.
body_outer_post.tmpl, before the bottom <footer> element.
footer.tmpl, right before the end of the <body> tag, a good place for additional Javascript.

Example: Mermaid.js

If you would like to add mermaid.js support to Gitea's markdown you simply add:

{{if .RequireHighlightJS}}
<script src="https://unpkg.com/mermaid@8.4.5/dist/mermaid.min.js"></script>
<!-- or wherever you have placed it -->
<script>mermaid.init(".language-mermaid")</script>
{{end}}

to custom/footer.tmpl. You then can add blocks like below to your markdown:

```mermaid
    stateDiagram
    [*] --> Active

    state Active {
        [*] --> NumLockOff
        NumLockOff --> NumLockOn : EvNumLockPressed
        NumLockOn --> NumLockOff : EvNumLockPressed
        --
        [*] --> CapsLockOff
        CapsLockOff --> CapsLockOn : EvCapsLockPressed
        CapsLockOn --> CapsLockOff : EvCapsLockPressed
        --
        [*] --> ScrollLockOff
        ScrollLockOff --> ScrollLockOn : EvCapsLockPressed
        ScrollLockOn --> ScrollLockOff : EvCapsLockPressed
    }
```

If you want to use Mermaid.js outside of markdown, e.g. in other templates or HTML files, you would need to remove {{if .RequireHighlightJS}} and {{end}}.

Mermaid will detect and use tags with class="language-mermaid".

Example: PlantUML

You can add PlantUML support to Gitea's markdown by using a PlantUML server. The data is encoded and sent to the PlantUML server which generates the picture. There is an online demo server at http://www.plantuml.com/plantuml, but if you (or your users) have sensitive data you can set up your own PlantUML server instead. To set up PlantUML rendering, copy javascript files from https://gitea.com/davidsvantesson/plantuml-code-highlight and put them in your custom/public folder. Then add the following to custom/footer.tmpl:

{{if .RequireHighlightJS}}
<script src="https://your-server.com/deflate.js"></script>
<script src="https://your-server.com/encode.js"></script>
<script src="https://your-server.com/plantuml_codeblock_parse.js"></script>
<script>
<!-- Replace call with address to your plantuml server-->
parsePlantumlCodeBlocks("http://www.plantuml..com/plantuml")
</script>
{{end}}

You can then add blocks like the following to your markdown:

```plantuml
    Alice -> Bob: Authentication Request
    Bob --> Alice: Authentication Response

    Alice -> Bob: Another authentication Request
    Alice <-- Bob: Another authentication Response
```

The script will detect tags with class="language-plantuml", but you can change this by providing a second argument to parsePlantumlCodeBlocks.

Customizing Gitea mails

The custom/templates/mail folder allows changing the body of every mail of Gitea. Templates to override can be found in the templates/mail directory of Gitea source. Override by making a copy of the file under custom/templates/mail using a full path structure matching source.

Any statement contained inside {{ and }} are Gitea's template syntax and shouldn't be touched without fully understanding these components.

Adding Analytics to Gitea

Google Analytics, Matomo (previously Piwik), and other analytics services can be added to Gitea. To add the tracking code, refer to the Other additions to the page section of this document, and add the JavaScript to the custom/templates/custom/header.tmpl file.

Customizing gitignores, labels, licenses, locales, and readmes.

Place custom files in corresponding sub-folder under custom/options.

NOTE: The files should not have a file extension, e.g. Labels rather than Labels.txt

gitignores

To add custom .gitignore, add a file with existing .gitignore rules in it to custom/options/gitignore

Labels

To add a custom label set, add a file that follows the label format to custom/options/label
#hex-color label name ; label description

Licenses

To add a custom license, add a file with the license text to custom/options/license

Locales

Locales are managed via our crowdin.
You can override a locale by placing an altered locale file in custom/options/locale.
Gitea's default locale files can be found in the options/locale source folder and these should be used as examples for your changes.

To add a completely new locale, as well as placing the file in the above location, you will need to add the new lang and name to the [i18n] section in your app.ini. Keep in mind that Gitea will use those settings as overrides, so if you want to keep the other languages as well you will need to copy/paste the default values and add your own to them.

[i18n]
LANGS = en-US,foo-BAR
NAMES = English,FooBar

Locales may change between versions, so keeping track of your customized locales is highly encouraged.

Readmes

To add a custom Readme, add a markdown formatted file (without an .md extension) to custom/options/readme

NOTE: readme templates support variable expansion.
currently there are {Name} (name of repository), {Description}, {CloneURL.SSH} and {CloneURL.HTTPS}

Reactions

To change reaction emoji's you can set allowed reactions at app.ini

[ui]
REACTIONS = +1, -1, laugh, confused, heart, hooray, eyes

A full list of supported emoji's is at emoji list

Customizing the look of Gitea

As of version 1.6.0 Gitea has built-in themes. The two built-in themes are, the default theme gitea, and a dark theme arc-green. To change the look of your Gitea install change the value of DEFAULT_THEME in the ui section of app.ini to another one of the available options.
As of version 1.8.0 Gitea also has per-user themes. The list of themes a user can choose from can be configured with the THEMES value in the ui section of app.ini (defaults to gitea and arc-green, light and dark respectively)

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