gollum -- A git-based Wiki

Please update to gollum 5.1.1 to counter a recent exploit in the kramdown rendering gem, CVE-2020-14001

Gollum version 5.0 is out! See here for a list of changes and new features compared to Gollum version 4.x, and see some Screenshots of Gollum's features.

DESCRIPTION

Gollum is a simple wiki system built on top of Git. A Gollum Wiki is simply a git repository of a specific nature:

• A Gollum repository's contents are human-editable text or markup files.
• Pages may be organized into directories any way you choose.
• Other content can also be included, for example images, PDFs and headers/footers for your pages.
• Gollum pages:
  • May be written in a variety of markups.
  • Can be edited with your favourite system editor or IDE (changes will be visible after committing) or with the built-in web interface.
  • Can be displayed in all versions, reverted, etc.
• Gollum strives to be compatible with GitHub wikis (see --lenient-tag-lookup)
• Gollum supports advanced functionality like:
  • UML diagrams
  • BibTeX and Citation support
  • Annotations using CriticMarkup
  • Mathematics via MathJax
  • Macros
  • Redirects
  • RSS Feed of latest changes
  • ...and more

SYSTEM REQUIREMENTS

Gollum runs on Unix-like systems using its adapter for rugged by default. You can also run Gollum on JRuby via its adapter for RJGit. On Windows, Gollum runs only on JRuby.

INSTALLATION

1. Ruby is best installed either via RVM or a package manager of choice.
2. Gollum is best installed via RubyGems:

   [sudo] gem install gollum
   

Installation examples for individual systems can be seen here.

To run, simply:

1. Run: gollum /path/to/wiki.
2. Open http://localhost:4567 in your browser.

See below for information on running Gollum from source, as a Rack app, and more.

Markups

Gollum allows using different markup languages on different wiki pages. It presently ships with support for the following markups:

• Markdown (see below for more information on Markdown flavors)
• RDoc

You can easily activate support for other markups by installing additional renderers (any that are supported by github-markup):

• AsciiDoc -- [sudo] gem install asciidoctor
• Creole -- [sudo] gem install creole
• MediaWiki -- [sudo] gem install wikicloth
• Org -- [sudo] gem install org-ruby
• Pod -- requires Perl >= 5.10 (the perl command must be available on your command line)
  • Lower versions should install Pod::Simple from CPAN.
• ReStructuredText -- requires python >= 2 (the python2 command must be available on your command line)
  • Note that Gollum will also need you to install docutils for your Python 2.
• Textile -- [sudo] gem install RedCloth

Markdown flavors

By default, Gollum ships with the kramdown gem to render Markdown. However, you can use any Markdown renderer supported by github-markup. This includes CommonMark support via the commonmarker gem. The first installed renderer from the list will be used (e.g., redcarpet will NOT be used if github/markdown is installed). Just gem install the renderer of your choice.

See here for instructions on how to use custom rendering gems and set custom options.

RUNNING FROM SOURCE

1. git clone https://github.com/gollum/gollum
2. cd gollum
3. [sudo] bundle install
4. bundle exec bin/gollum
5. Open http://localhost:4567 in your browser.

Rack

Gollum can also be ran with any rack-compatible web server. More on that over here.

Rack, with an authentication server

Gollum can also be ran alongside a CAS (Central Authentication Service) SSO (single sign-on) server. With a bit of tweaking, this adds basic user-support to Gollum. To see an example and an explanation, navigate over here.

Docker

Gollum can also be ran via Docker. More on that over here.

Service

Gollum can also be ran as a service. More on that over here.

CONFIGURATION

Gollum comes with the following command line options:

Option	Arguments	Description
--host	[HOST]	Specify the hostname or IP address to listen on. Default: '0.0.0.0'.1
--port	[PORT]	Specify the port to bind Gollum with. Default: 4567.
--config	[FILE]	Specify path to Gollum's configuration file.
--ref	[REF]	Specify the git branch to serve. Default: master.
--bare	none	Tell Gollum that the git repository should be treated as bare.
--adapter	[ADAPTER]	Launch Gollum using a specific git adapter. Default: rugged.2
--base-path	[PATH]	Specify the leading portion of all Gollum URLs (path info). Setting this to /wiki will make the wiki accessible under http://localhost:4567/wiki/. Default: /.
--page-file-dir	[PATH]	Specify the subdirectory for all pages. If set, Gollum will only serve pages from this directory and its subdirectories. Default: repository root.
--static, --no-static	none	Use static assets. Defaults to false in development/test, true in production/staging.
--assets	[PATH]	Set the path to look for static assets.
--css	none	Tell Gollum to inject custom CSS into each page. Uses custom.css from wiki root.3
--js	none	Tell Gollum to inject custom JS into each page. Uses custom.js from wiki root.3
--no-edit	none	Disable the feature of editing pages.
--follow-renames, --no-follow-renames	none	Follow pages across renames in the History view. Default: true.
--allow-uploads	[MODE]	Enable file uploads. If set to dir, Gollum will store all uploads in the /uploads/ directory in repository root. If set to page, Gollum will store each upload at the currently edited page.4
--mathjax	none	Enables MathJax (renders mathematical equations). By default, uses the TeX-AMS-MML_HTMLorMML config with the autoload-all extension.5
--critic-markup	none	Enable support for annotations using CriticMarkup.
--irb	none	Launch Gollum in "console mode", with a predefined API.
--h1-title	none	Tell Gollum to use the first <h1> as page title.
--no-display-metadata	none	Do not render metadata tables in pages.
--user-icons	[MODE]	Tell Gollum to use specific user icons for history view. Can be set to gravatar, identicon or none. Default: none.
--mathjax-config	[FILE]	Specify path to a custom MathJax configuration. If not specified, uses the mathjax.config.js file from repository root.
--template-dir	[PATH]	Specify custom mustache template directory.
--template-page	none	Use _Template in root as a template for new pages. Must be committed.
--emoji	none	Parse and interpret emoji tags (e.g. :heart:) except when the leading colon is backslashed (e.g. \:heart:).
--lenient-tag-lookup	none	Internal links resolve case-insensitively, will treat spaces as hyphens, and will match the first page found with a certain filename, anywhere in the repository. Provides compatibility with Gollum 4.x.
--help	none	Display the list of options on the command line.
--version	none	Display the current version of Gollum.
--versions	none	Display the current version of Gollum and auxiliary gems.

Notes:

1. The 0.0.0.0 IP address allows remote access. Should you wish for Gollum to turn into a personal Wiki, use 127.0.0.1.
2. Before using --adapter, you should probably read this first.
3. When --css or --js is used, respective files must be committed to your git repository or you will get a 302 redirect to the create a page.
4. Files can be uploaded simply by dragging and dropping them onto the editor's text area when --allow-uploads is used.

Config file

When --config option is used, certain inner parts of Gollum can be customized. This is used throughout our wiki for certain user-level alterations, among which customizing supported markups will probably stand out.

All of the mentioned alterations work both for Gollum's config file (config.rb) and Rack's config file (config.ru).

CONTRIBUTING

Please consider helping out! See CONTRIBUTING for information on how to submit issues, and how to start hacking on gollum.