gollum lib -- A wiki built on top of Git

DESCRIPTION

Gollum is a simple wiki system built on top of Git that powers GitHub Wikis.

Gollum-lib is the Ruby API that allows you to retrieve raw or formatted wiki content from a Git repository, write new content to the repository, and collect various meta data about the wiki as a whole.

Gollum-lib follows the rules of Semantic Versioning and uses TomDoc for inline documentation.

SYSTEM REQUIREMENTS

Ruby 1.9.3+ (>2.0 recommended)
Unix like operating system (OS X, Ubuntu, Debian, and more)
By default the Rugged adapter is used for MRI, and RJGit for JRuby.
Will not work on Windows with the grit adapter, but might work via JRuby (please let us know!)

INSTALLATION

The best way to install Gollum-lib is with RubyGems:

$ [sudo] gem install gollum-lib

If you're installing from source, you can use Bundler to pick up all the gems:

$ bundle install

In order to use the various formats that Gollum supports, you will need to separately install the necessary dependencies for each format. You only need to install the dependencies for the formats that you plan to use.

AsciiDoc -- gem install asciidoctor
Creole -- gem install creole
Markdown -- gem install redcarpet
GitHub Flavored Markdown -- gem install github-markdown
Org -- gem install org-ruby
Pod -- Pod::Simple::HTML comes with Perl >= 5.10. Lower versions should install Pod::Simple from CPAN.
RDoc
ReStructuredText -- easy_install docutils
Textile -- gem install RedCloth
MediaWiki -- gem install wikicloth

SYNTAX

Gollum supports a variety of formats and extensions (Markdown, MediaWiki, Textile, …). On top of these formats Gollum lets you insert headers, footers, links, image, math and more.

Check out the Gollum Wiki for all of Gollum's formats and syntactic options.

API DOCUMENTATION

Initialize the Gollum::Repo object:

# Require rubygems if necessary
require 'rubygems'

# Require the Gollum library
require 'gollum-lib'

# Create a new Gollum::Wiki object by initializing it with the path to the
# Git repository.
wiki = Gollum::Wiki.new("my-gollum-repo.git")
# => <Gollum::Wiki>

By default, internal wiki links are all absolute from the root. To specify a different base path, you can specify the :base_path option:

wiki = Gollum::Wiki.new("my-gollum-repo.git", :base_path => "/wiki")

Note that base_path just modifies the links.

Get the latest version of the given human or canonical page name:

page = wiki.page('page-name')
# => <Gollum::Page>

page.raw_data
# => "# My wiki page"

page.formatted_data
# => "<h1>My wiki page</h1>"

page.format
# => :markdown

vsn = page.version
# => <Gollum::Git::Commit>

vsn.id
# => '3ca43e12377ea1e32ea5c9ce5992ec8bf266e3e5'

Get the footer (if any) for a given page:

page.footer
# => <Gollum::Page>

Get the header (if any) for a given page:

page.header
# => <Gollum::Page>

Get a list of versions for a given page:

vsns = wiki.page('page-name').versions
# => [<Gollum::Git::Commit, <Gollum::Git::Commit, <Gollum::Git::Commit>]

vsns.first.id
# => '3ca43e12377ea1e32ea5c9ce5992ec8bf266e3e5'

vsns.first.authored_date
# => Sun Mar 28 19:11:21 -0700 2010

Get a specific version of a given canonical page file:

wiki.page('page-name', '5ec521178e0eec4dc39741a8978a2ba6616d0f0a')

Get the latest version of a given static file:

file = wiki.file('asset.js')
# => <Gollum::File>

file.raw_data
# => "alert('hello');"

file.version
# => <Gollum::Git::Commit>

Get a specific version of a given static file:

wiki.file('asset.js', '5ec521178e0eec4dc39741a8978a2ba6616d0f0a')

Get an in-memory Page preview (useful for generating previews for web interfaces):

preview = wiki.preview_page("My Page", "# Contents", :markdown)
preview.formatted_data
# => "<h1>Contents</h1>"

Methods that write to the repository require a Hash of commit data that takes the following form:

commit = { :message => 'commit message',
           :name => 'Tom Preston-Werner',
           :email => '[email protected]' }

Write a new version of a page (the file will be created if it does not already exist) and commit the change. The file will be written at the repo root.

wiki.write_page('Page Name', :markdown, 'Page contents', commit)

Update an existing page. If the format is different than the page's current format, the file name will be changed to reflect the new format.

page = wiki.page('Page Name')
wiki.update_page(page, page.name, page.format, 'Page contents', commit)

To delete a page and commit the change:

wiki.delete_page(page, commit)

Gollum::Hook.register(:post_commit, :hook_id) do |committer, sha1|
  # Your code here
end

Gollum::Hook.unregister(:post_commit, :hook_id)

WINDOWS FILENAME VALIDATION

Note that filenames on windows must not contain any of the following characters \ / : * ? " < > |. See this support article for details.

RELEASING

Gollum-lib uses Semantic Versioning. Having x.y.z :

For z releases:

$ rake bump
$ rake release

For x.y releases:

$ rake gemspec
$ rake release

BUILDING THE GEM FROM MASTER

$ gem uninstall -aIx gollum-lib
$ git clone https://github.com/gollum/gollum-lib.git
$ cd gollum-lib
gollum-lib$ rake build
gollum-lib$ rake install

RUN THE TESTS

$ bundle install
$ bundle exec rake test

WORK WITH TEST REPOS

An example of how to add a test file to the bare repository lotr.git.

$ mkdir tmp; cd tmp
$ git clone ../lotr.git/ .
Cloning into '.'...
done.
$ git log
$ echo "test" > test.md
$ git add . ; git commit -am "Add test"
$ git push ../lotr.git/ master