discourse/app/models/remote_theme.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

86 lines
2.1 KiB
Ruby

require_dependency 'git_importer'
class RemoteTheme < ActiveRecord::Base
has_one :theme
def self.import_theme(url, user=Discourse.system_user)
importer = GitImporter.new(url)
importer.import!
theme_info = JSON.parse(importer["about.json"])
theme = Theme.new(user_id: user&.id || -1, name: theme_info["name"])
remote_theme = new
theme.remote_theme = remote_theme
remote_theme.remote_url = importer.url
remote_theme.update_from_remote(importer)
theme.save!
theme
ensure
begin
importer.cleanup!
rescue => e
Rails.logger.warn("Failed cleanup remote git #{e}")
end
end
def update_remote_version
importer = GitImporter.new(remote_url)
importer.import!
self.updated_at = Time.zone.now
self.remote_version, self.commits_behind = importer.commits_since(remote_version)
end
def update_from_remote(importer=nil)
return unless remote_url
cleanup = false
unless importer
cleanup = true
importer = GitImporter.new(remote_url)
importer.import!
end
Theme.targets.keys.each do |target|
Theme::ALLOWED_FIELDS.each do |field|
value = importer["#{target}/#{field=="scss"?"#{target}.scss":"#{field}.html"}"]
theme.set_field(target.to_sym, field, value)
end
end
theme_info = JSON.parse(importer["about.json"])
self.license_url ||= theme_info["license_url"]
self.about_url ||= theme_info["about_url"]
self.remote_updated_at = Time.zone.now
self.remote_version = importer.version
self.local_version = importer.version
self.commits_behind = 0
self
ensure
begin
importer.cleanup! if cleanup
rescue => e
Rails.logger.warn("Failed cleanup remote git #{e}")
end
end
end
# == Schema Information
#
# Table name: remote_themes
#
# id :integer not null, primary key
# remote_url :string not null
# remote_version :string
# local_version :string
# about_url :string
# license_url :string
# commits_behind :integer
# remote_updated_at :datetime
# created_at :datetime
# updated_at :datetime
#