discourse/lib/git_importer.rb
Sam a3e8c3cd7b FEATURE: Native theme support
This feature introduces the concept of themes. Themes are an evolution
of site customizations.

Themes introduce two very big conceptual changes:

- A theme may include other "child themes", children can include grand
children and so on.

- A theme may specify a color scheme

The change does away with the idea of "enabled" color schemes.

It also adds a bunch of big niceties like

- You can source a theme from a git repo

- History for themes is much improved

- You can only have a single enabled theme. Themes can be selected by
    users, if you opt for it.

On a technical level this change comes with a whole bunch of goodies

- All CSS is now compiled using a custom pipeline that uses libsass
    see /lib/stylesheet

- There is a single pipeline for css compilation (in the past we used
    one for customizations and another one for the rest of the app

- The stylesheet pipeline is now divorced of sprockets, there is no
   reliance on sprockets for CSS bundling

- CSS is generated with source maps everywhere (including themes) this
    makes debugging much easier

- Our "live reloader" is smarter and avoid a flash of unstyled content
   we run a file watcher in "puma" in dev so you no longer need to run
   rake autospec to watch for CSS changes
2017-04-12 10:53:49 -04:00

50 lines
1.2 KiB
Ruby

class GitImporter
attr_reader :url
def initialize(url)
@url = url
if @url.start_with?("https://github.com") && !@url.end_with?(".git")
@url += ".git"
end
@temp_folder = "#{Dir.tmpdir}/discourse_theme_#{SecureRandom.hex}"
end
def import!
Discourse::Utils.execute_command("git", "clone", @url, @temp_folder)
end
def commits_since(hash)
commit_hash, commits_behind = nil
Dir.chdir(@temp_folder) do
commit_hash = Discourse::Utils.execute_command("git", "rev-parse", "HEAD").strip
commits_behind = Discourse::Utils.execute_command("git", "rev-list", "#{hash}..HEAD", "--count").strip
end
[commit_hash, commits_behind]
end
def version
Dir.chdir(@temp_folder) do
Discourse::Utils.execute_command("git", "rev-parse", "HEAD").strip
end
end
def cleanup!
FileUtils.rm_rf(@temp_folder)
end
def [](value)
fullpath = "#{@temp_folder}/#{value}"
return nil unless File.exist?(fullpath)
# careful to handle symlinks here, don't want to expose random data
fullpath = Pathname.new(fullpath).realpath.to_s
if fullpath && fullpath.start_with?(@temp_folder)
File.read(fullpath)
end
end
end