Class: BetweenMeals::Changes::Cookbook

Inherits:
Change
  • Object
show all
Defined in:
lib/between_meals/changes/cookbook.rb

Overview

Changeset aware cookbook

Instance Attribute Summary

Attributes inherited from Change

#name, #status

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Change

#debug, debug, #info, info, #logger=, #to_s

Constructor Details

#initialize(files, cookbook_dirs) ⇒ Cookbook

Returns a new instance of Cookbook.



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# File 'lib/between_meals/changes/cookbook.rb', line 85

def initialize(files, cookbook_dirs)
  @files = files
  @cookbook_dirs = cookbook_dirs
  @name = self.class.explode_path(files.sample[:path])[:name]
  # if metadata.(json|rb) is being deleted and we aren't also
  # adding/modifying one of those two,
  #   cookbook is marked for deletion
  # otherwise it was modified
  #   and will be re-uploaded
  if files.
     select { |x| x[:status] == :deleted }.
     map do |x|
       x[:path].match(
         %{^(#{cookbook_dirs.join('|')})/[^/]+/metadata\.(rb|json)$},
       )
     end.
     compact.
     any? &&
     files.reject { |x| x[:status] == :deleted }.
     map do |x|
       x[:path].match(
         %{^(#{cookbook_dirs.join('|')})/[^/]+/metadata\.(rb|json)$},
       )
     end.none?
    @status = :deleted
  else
    @status = :modified
  end
end

Class Method Details

.explode_path(path) ⇒ Object 



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# File 'lib/between_meals/changes/cookbook.rb', line 25

def self.explode_path(path)
  @cookbook_dirs.each do |dir|
    re = %r{^#{dir}/([^/]+)/.*}
    debug("[cookbook] Matching #{path} against ^#{re}")
    m = path.match(re)
    next unless m

    info("Cookbook is #{m[1]}")
    return {
      :cookbook_dir => dir,
      :name => m[1],
    }
  end
  nil
end

.find(list, cookbook_dirs, logger, repo, track_symlinks = false) ⇒ Object

Given a list of changed files create a list of Cookbook objects



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# File 'lib/between_meals/changes/cookbook.rb', line 117

def self.find(list, cookbook_dirs, logger, repo, track_symlinks = false)
  # rubocop:disable ClassVars
  @@logger = logger
  # rubocop:enable ClassVars
  return [] if list.nil? || list.empty?

  # rubocop:disable MultilineBlockChain
  @repo_dir = File.realpath(repo.repo_path)
  @cookbook_dirs = cookbook_dirs
  list += map_symlinks(list) if track_symlinks
  list.
    group_by do |x|
    # Group by prefix of cookbok_dir + cookbook_name
    # so that we treat deletes and modifications across
    # two locations separately
    g = self.explode_path(x[:path])
    g[:cookbook_dir] + '/' + g[:name] if g
  end.
    map do |_, change|
    # Confirm we're dealing with a cookbook
    # Changes to OWNERS or other stuff that might end up
    # in [core, other, secure] dirs are ignored
    is_cookbook = change.select do |c|
      self.meaningful_cookbook_file?(c[:path])
    end.any?
    if is_cookbook
      BetweenMeals::Changes::Cookbook.new(change, @cookbook_dirs)
    end
  end.compact
  # rubocop:enable MultilineBlockChain
end

.map_symlinks(files) ⇒ Object 



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# File 'lib/between_meals/changes/cookbook.rb', line 41

def self.map_symlinks(files)
  # For each symlink get the source path, if any files have changed under
  # the source path, fake them as coming from the symlink path. This
  # allows the normal cookbook logic to just work.
  symlinks = {}
  @cookbook_dirs.each do |dir|
    dir = File.join(@repo_dir, dir)
    # Find symlinks in each cookbook_dir
    links = Dir.foreach(dir).select do |d|
      File.symlink?(File.join(dir, d))
    end
    links.each do |link|
      link = File.join(dir, link)
      next if symlinks[link]

      source = File.realpath(link)
      repo = File.join(@repo_dir, '/')
      # maps absolute symlink path to relative source and link paths
      symlinks[link] = {
        'source' => source.gsub(repo, ''),
        'link' => link.gsub(repo, ''),
      }
    end
  end

  # Create the file hash expected for each file that is a link or coming
  # from a linked directory but fake the source path as a symlink path.
  # Hacky but works :)
  links_to_append = []
  symlinks.each_value do |lrp| # link_abs_path, link_relative_path
    files.each do |f|
      # a symlink will never have trailing '/', add one.
      f[:path] += '/' if f[:path] == lrp['link']
      next unless f[:path].start_with?(lrp['source'])

      # This make a deep dup of the file hash
      l = Marshal.load(Marshal.dump(f))
      l[:path].gsub!(lrp['source'], lrp['link'])
      links_to_append << l
    end
  end
  links_to_append
end

.meaningful_cookbook_file?(path) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/between_meals/changes/cookbook.rb', line 21

def self.meaningful_cookbook_file?(path)
  !explode_path(path).nil?
end