Class: ActiveAdminPrism::Generators::InstallGenerator

Inherits:
Rails::Generators::Base
  • Object
show all
Defined in:
lib/generators/active_admin_prism/install/install_generator.rb

Overview

rails g active_admin_prism:install

The only manual install step this theme needs: enabling the sidebar. Stylesheet/javascript registration is automatic (see ActiveAdminPrism::Engine) — nothing to add to an asset manifest.

Constant Summary collapse

ENABLE_LINE = 
"ActiveAdminPrism.enable!\n"
INITIALIZER_PATH = 
"config/initializers/active_admin.rb"
STYLESHEET_PATH = 
"app/assets/stylesheets/active_admin.scss"
VARIABLE_IMPORT_LINE = 
'@import "active_admin_prism/variable_overrides";'
MIXINS_IMPORT_PATTERN = 
/@import\s+["']active_admin\/mixins["'];?/.freeze

Instance Method Summary collapse

Instance Method Details

#enable_active_admin_prism ⇒ Object 



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# File 'lib/generators/active_admin_prism/install/install_generator.rb', line 20

def enable_active_admin_prism
  unless File.exist?(File.join(destination_root, INITIALIZER_PATH))
    say_status :error,
               "#{INITIALIZER_PATH} not found — run `rails g active_admin:install` first",
               :red
    return
  end

  if File.read(File.join(destination_root, INITIALIZER_PATH)).include?("ActiveAdminPrism.enable!")
    say_status :identical, INITIALIZER_PATH, :blue
  else
    append_to_file INITIALIZER_PATH, "\n#{ENABLE_LINE}"
  end
end

#override_active_admin_sass_variables ⇒ Object

Injects the palette override import just before @import "active_admin/mixins" — order matters, since every variable in variable_overrides.scss is !default and only wins if it runs first. See that file for what it overrides and why.



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# File 'lib/generators/active_admin_prism/install/install_generator.rb', line 39

def override_active_admin_sass_variables
  full_path = File.join(destination_root, STYLESHEET_PATH)

  unless File.exist?(full_path)
    say_status :skip,
               "#{STYLESHEET_PATH} not found — if you add one later, put " \
               "`#{VARIABLE_IMPORT_LINE}` before your \"active_admin/mixins\" import",
               :yellow
    return
  end

  contents = File.read(full_path)

  if contents.include?("active_admin_prism/variable_overrides")
    say_status :identical, STYLESHEET_PATH, :blue
    return
  end

  unless contents.match?(MIXINS_IMPORT_PATTERN)
    say_status :skip,
               "couldn't find an `@import \"active_admin/mixins\";` line in #{STYLESHEET_PATH} — " \
               "add `#{VARIABLE_IMPORT_LINE}` above it yourself",
               :yellow
    return
  end

  inject_into_file STYLESHEET_PATH, "#{VARIABLE_IMPORT_LINE}\n", before: MIXINS_IMPORT_PATTERN
end