Class: RubyCms::Updater

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby_cms/updater.rb

Overview

Pulls new versions of gem-owned files into a host app, scoped to the modules recorded in the app's lockfile. Changed-files-only (content compare). Files matching the host's excludes (gem defaults + .ruby_cms.yml exclude:) are never overwritten.

Defined Under Namespace

Classes: Result

Instance Method Summary collapse

Constructor Details

#initialize(manifest:, templates_root:, app_root:) ⇒ Updater

Returns a new instance of Updater.



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# File 'lib/ruby_cms/updater.rb', line 17

def initialize(manifest:, templates_root:, app_root:)
  @manifest = manifest
  @templates_root = Pathname.new(templates_root)
  @app_root = Pathname.new(app_root)
end

Instance Method Details

#update(dry_run: false, only: nil) ⇒ Object 



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# File 'lib/ruby_cms/updater.rb', line 23

def update(dry_run: false, only: nil)
  keys = installed_keys
  keys &= Array(only).map(&:to_sym) if only
  modules = keys.filter_map {|k| @manifest[k] }
  host_excludes = Lockfile.new(@app_root).excludes

  changed = []
  unchanged = []
  excluded = []
  template_paths(modules).each do |template_rel|
    src = @templates_root.join(template_rel)
    next unless src.file?

    app_rel = PathMap.to_app(template_rel)
    if Excludes.excluded?(app_rel, host_excludes)
      excluded << app_rel
      next
    end

    dest = @app_root.join(app_rel)
    if dest.exist? && dest.binread == src.binread
      unchanged << app_rel
      next
    end

    changed << app_rel
    next if dry_run

    FileUtils.mkdir_p(dest.dirname)
    dest.binwrite(src.binread)
  end

  Result.new(changed:, unchanged:, excluded:)
end