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namespace :branding do
desc 'Generate necessary graphic assets for branding from source SVG files'
task generate: :environment do
Rake::Task['branding:generate_app_icons'].invoke
Rake::Task['branding:generate_app_badge'].invoke
Rake::Task['branding:generate_github_assets'].invoke
Rake::Task['branding:generate_mailer_assets'].invoke
end
desc 'Generate PNG icons and logos for e-mail templates'
task generate_mailer_assets: :environment do
rsvg_convert = Terrapin::CommandLine.new('rsvg-convert', '-h :size --keep-aspect-ratio :input -o :output')
output_dest = Rails.root.join('app', 'javascript', 'images', 'mailer')
# Displayed size is 64px, at 3x it's 192px
Dir[Rails.root.join('app', 'javascript', 'images', 'icons', '*.svg')].each do |path|
rsvg_convert.run(input: path, size: 192, output: output_dest.join("#{File.basename(path, '.svg')}.png"))
end
# Displayed size is 34px, at 3x it's 102px
rsvg_convert.run(input: Rails.root.join('app', 'javascript', 'images', 'logo-symbol-wordmark.svg'), size: 102, output: output_dest.join('wordmark.png'))
# Displayed size is 24px, at 3x it's 72px
rsvg_convert.run(input: Rails.root.join('app', 'javascript', 'images', 'logo-symbol-icon.svg'), size: 72, output: output_dest.join('logo.png'))
end
desc 'Generate light/dark logotypes for GitHub'
task generate_github_assets: :environment do
rsvg_convert = Terrapin::CommandLine.new('rsvg-convert', '--stylesheet :stylesheet -h :size --keep-aspect-ratio :input -o :output')
output_dest = Rails.root.join('lib', 'assets')
rsvg_convert.run(stylesheet: Rails.root.join('lib', 'assets', 'wordmark.dark.css'), input: Rails.root.join('app', 'javascript', 'images', 'logo-symbol-wordmark.svg'), size: 102, output: output_dest.join('wordmark.dark.png'))
rsvg_convert.run(stylesheet: Rails.root.join('lib', 'assets', 'wordmark.light.css'), input: Rails.root.join('app', 'javascript', 'images', 'logo-symbol-wordmark.svg'), size: 102, output: output_dest.join('wordmark.light.png'))
end
desc 'Generate favicons and app icons from SVG source files'
task generate_app_icons: :environment do
favicon_source = Rails.root.join('app', 'javascript', 'images', 'logo.svg')
app_icon_source = Rails.root.join('app', 'javascript', 'images', 'app-icon.svg')
output_dest = Rails.root.join('app', 'javascript', 'icons')
rsvg_convert = Terrapin::CommandLine.new('rsvg-convert', '-w :size -h :size --keep-aspect-ratio :input -o :output')
convert = Terrapin::CommandLine.new('convert', ':input :output')
favicon_sizes = [16, 32, 48]
apple_icon_sizes = [57, 60, 72, 76, 114, 120, 144, 152, 167, 180, 1024]
android_icon_sizes = [36, 48, 72, 96, 144, 192, 256, 384, 512]
favicons = []
favicon_sizes.each do |size|
output_path = output_dest.join("favicon-#{size}x#{size}.png")
favicons << output_path
rsvg_convert.run(size: size, input: favicon_source, output: output_path)
end
convert.run(input: favicons, output: Rails.root.join('public', 'favicon.ico'))
apple_icon_sizes.each do |size|
rsvg_convert.run(size: size, input: app_icon_source, output: output_dest.join("apple-touch-icon-#{size}x#{size}.png"))
end
android_icon_sizes.each do |size|
rsvg_convert.run(size: size, input: app_icon_source, output: output_dest.join("android-chrome-#{size}x#{size}.png"))
end
end
desc 'Generate badge icon from SVG source files'
task generate_app_badge: :environment do
rsvg_convert = Terrapin::CommandLine.new('rsvg-convert', '--stylesheet :stylesheet -w :size -h :size --keep-aspect-ratio :input -o :output')
badge_source = Rails.root.join('app', 'javascript', 'images', 'logo-symbol-icon.svg')
output_dest = Rails.root.join('public')
stylesheet = Rails.root.join('lib', 'assets', 'wordmark.light.css')
rsvg_convert.run(stylesheet: stylesheet, input: badge_source, size: 192, output: output_dest.join('badge.png'))
end
end
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