296 lines
8.6 KiB
Ruby
296 lines
8.6 KiB
Ruby
# frozen_string_literal: true
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require_dependency 'stylesheet/common'
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require_dependency 'global_path'
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module Stylesheet
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class Importer < SassC::Importer
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include GlobalPath
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THEME_TARGETS ||= %w{embedded_theme mobile_theme desktop_theme}
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def self.special_imports
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@special_imports ||= {}
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end
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def self.register_import(name, &blk)
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special_imports[name] = blk
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end
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# Contained in function so that it can be called repeatedly from test mode
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def self.register_imports!
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@special_imports = {}
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register_import "theme_field" do
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Import.new("#{theme_dir(@theme_id)}/theme_field.scss", source: @theme_field)
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end
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Discourse.plugins.each do |plugin|
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plugin_directory_name = plugin.directory_name
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["", "mobile", "desktop"].each do |type|
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asset_name = type.present? ? "#{plugin_directory_name}_#{type}" : plugin_directory_name
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stylesheets = type.present? ? DiscoursePluginRegistry.send("#{type}_stylesheets") : DiscoursePluginRegistry.stylesheets
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if stylesheets[plugin_directory_name].present?
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register_import asset_name do
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import_files(stylesheets[plugin_directory_name])
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end
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end
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end
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end
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register_import "font" do
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font = DiscourseFonts.fonts.find { |f| f[:key] == SiteSetting.base_font }
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contents = <<~EOF
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#{font_css(font)}
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:root {
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--font-family: #{font[:stack]};
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}
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EOF
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Import.new("font.scss", source: contents)
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end
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register_import "wizard_fonts" do
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contents = +""
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DiscourseFonts.fonts.each do |font|
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contents << font_css(font)
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contents << <<~EOF
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.font-#{font[:key].tr("_", "-")} {
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font-family: #{font[:stack]};
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}
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EOF
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end
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Import.new("wizard_fonts.scss", source: contents)
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end
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register_import "plugins_variables" do
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import_files(DiscoursePluginRegistry.sass_variables)
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end
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register_import "theme_colors" do
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contents = +""
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if @color_scheme_id
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colors = begin
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ColorScheme.find(@color_scheme_id).resolved_colors
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rescue
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ColorScheme.base_colors
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end
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else
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colors = (@theme_id && theme.color_scheme) ? theme.color_scheme.resolved_colors : ColorScheme.base_colors
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end
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colors.each do |n, hex|
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contents << "$#{n}: ##{hex} !default;\n"
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end
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Import.new("theme_colors.scss", source: contents)
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end
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register_import "theme_variables" do
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contents = +""
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theme&.all_theme_variables&.each do |field|
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if field.type_id == ThemeField.types[:theme_upload_var]
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if upload = field.upload
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url = upload_cdn_path(upload.url)
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contents << "$#{field.name}: unquote(\"#{url}\");\n"
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end
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else
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contents << to_scss_variable(field.name, field.value)
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end
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end
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theme&.included_settings&.each do |name, value|
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next if name == "theme_uploads"
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contents << to_scss_variable(name, value)
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end
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Import.new("theme_variable.scss", source: contents)
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end
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register_import "category_backgrounds" do
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contents = +""
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Category.where('uploaded_background_id IS NOT NULL').each do |c|
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contents << category_css(c) if c.uploaded_background&.url.present?
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end
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Import.new("category_background.scss", source: contents)
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end
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register_import "embedded_theme" do
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next unless @theme_id
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theme_import(:common, :embedded_scss)
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end
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register_import "mobile_theme" do
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next unless @theme_id
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theme_import(:mobile, :scss)
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end
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register_import "desktop_theme" do
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next unless @theme_id
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theme_import(:desktop, :scss)
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end
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end
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register_imports!
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def self.import_color_definitions(theme_id)
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contents = +""
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DiscoursePluginRegistry.color_definition_stylesheets.each do |name, path|
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contents << "// Color definitions from #{name}\n\n"
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contents << File.read(path.to_s)
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contents << "\n\n"
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end
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if theme_id
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Theme.list_baked_fields([theme_id], :common, :color_definitions).each do |row|
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contents << "// Color definitions from #{Theme.find_by_id(theme_id)&.name}\n\n"
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contents << row.value
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end
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end
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contents
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end
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def initialize(options)
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@theme = options[:theme]
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@theme_id = options[:theme_id]
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@theme_field = options[:theme_field]
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@color_scheme_id = options[:color_scheme_id]
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if @theme && !@theme_id
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# make up an id so other stuff does not bail out
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@theme_id = @theme.id || -1
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end
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@importable_theme_fields = {}
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end
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def import_files(files)
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files.map do |file|
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# we never want inline css imports, they are a mess
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# this tricks libsass so it imports inline instead
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if file =~ /\.css$/
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file = file[0..-5]
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end
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Import.new(file)
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end
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end
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def theme_import(target, attr)
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fields = theme.list_baked_fields(target, attr)
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fields.map do |field|
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value = field.value
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if value.present?
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filename = "theme_#{field.theme.id}/#{field.target_name}-#{field.name}-#{field.theme.name.parameterize}.scss"
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with_comment = <<~COMMENT
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// Theme: #{field.theme.name}
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// Target: #{field.target_name} #{field.name}
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// Last Edited: #{field.updated_at}
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#{value}
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COMMENT
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Import.new(filename, source: with_comment)
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end
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end.compact
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end
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def theme
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unless @theme
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@theme = (@theme_id && Theme.find(@theme_id)) || :nil
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end
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@theme == :nil ? nil : @theme
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end
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def theme_dir(import_theme_id)
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"theme_#{import_theme_id}"
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end
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def extract_theme_id(path)
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path[/^theme_([0-9]+)\//, 1]
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end
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def importable_theme_fields(import_theme_id)
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return {} unless theme && import_theme = Theme.find(import_theme_id)
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@importable_theme_fields[import_theme_id] ||= begin
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hash = {}
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import_theme.theme_fields.where(target_id: Theme.targets[:extra_scss]).each do |field|
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hash[field.name] = field.value
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end
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hash
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end
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end
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def match_theme_import(path, parent_path)
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# Only allow importing theme stylesheets from within stylesheets in the same theme
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return false unless theme && import_theme_id = extract_theme_id(parent_path) # Could be a child theme
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parent_dir, _ = File.split(parent_path)
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# Could be relative to the importing file, or relative to the root of the theme directory
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search_paths = [parent_dir, theme_dir(import_theme_id)].uniq
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search_paths.each do |search_path|
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resolved = Pathname.new("#{search_path}/#{path}").cleanpath.to_s # Remove unnecessary ./ and ../
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next unless resolved.start_with?("#{theme_dir(import_theme_id)}/")
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resolved_within_theme = resolved.sub(/^theme_[0-9]+\//, "")
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if importable_theme_fields(import_theme_id).keys.include?(resolved_within_theme)
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return resolved, importable_theme_fields(import_theme_id)[resolved_within_theme]
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end
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end
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false
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end
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def category_css(category)
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"body.category-#{category.slug}, body.category-#{category.full_slug} { background-image: url(#{upload_cdn_path(category.uploaded_background.url)}) }\n"
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end
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def font_css(font)
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contents = +""
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if font[:variants].present?
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font[:variants].each do |variant|
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contents << <<~EOF
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@font-face {
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font-family: #{font[:name]};
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src: asset-url("/fonts/#{variant[:filename]}?v=#{DiscourseFonts::VERSION}") format("#{variant[:format]}");
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font-weight: #{variant[:weight]};
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}
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EOF
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end
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end
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contents
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end
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def to_scss_variable(name, value)
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escaped = SassC::Script::Value::String.quote(value, sass: true)
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"$#{name}: unquote(#{escaped});\n"
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end
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def imports(asset, parent_path)
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if asset[-1] == "*"
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Dir["#{Stylesheet::Common::ASSET_ROOT}/#{asset}.scss"].map do |path|
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Import.new(asset[0..-2] + File.basename(path, ".*"))
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end
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elsif callback = Importer.special_imports[asset]
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instance_eval(&callback)
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else
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path, source = match_theme_import(asset, parent_path)
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if path && source
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Import.new(path, source: source)
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else
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Import.new(asset + ".scss")
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end
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end
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end
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end
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end
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