96 lines
2.8 KiB
Ruby
96 lines
2.8 KiB
Ruby
require 'set'
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module Jekyll
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class Site
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# Handles the cleanup of a site's destination before it is built.
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class Cleaner
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attr_reader :site
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def initialize(site)
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@site = site
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end
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# Cleans up the site's destination directory
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def cleanup!
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FileUtils.rm_rf(obsolete_files)
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end
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private
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# Private: The list of files and directories to be deleted during cleanup process
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#
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# Returns an Array of the file and directory paths
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def obsolete_files
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(existing_files - new_files - new_dirs + replaced_files).to_a
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end
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# Private: The list of existing files, apart from those included in keep_files and hidden files.
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#
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# Returns a Set with the file paths
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def existing_files
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files = Set.new
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Dir.glob(site.in_dest_dir("**", "*"), File::FNM_DOTMATCH) do |file|
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files << file unless file =~ /\/\.{1,2}$/ || file =~ keep_file_regex || keep_dirs.include?(file)
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end
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files
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end
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# Private: The list of files to be created when site is built.
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#
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# Returns a Set with the file paths
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def new_files
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files = Set.new
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site.each_site_file { |item| files << item.destination(site.dest) }
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files
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end
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# Private: The list of directories to be created when site is built.
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# These are the parent directories of the files in #new_files.
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#
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# Returns a Set with the directory paths
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def new_dirs
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new_files.map { |file| parent_dirs(file) }.flatten.to_set
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end
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# Private: The list of parent directories of a given file
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#
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# Returns an Array with the directory paths
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def parent_dirs(file)
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parent_dir = File.dirname(file)
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if parent_dir == site.dest
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[]
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else
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[parent_dir] + parent_dirs(parent_dir)
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end
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end
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# Private: The list of existing files that will be replaced by a directory during build
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#
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# Returns a Set with the file paths
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def replaced_files
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new_dirs.select { |dir| File.file?(dir) }.to_set
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end
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# Private: The list of directories that need to be kept because they are parent directories
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# of files specified in keep_files
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#
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# Returns a Set with the directory paths
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def keep_dirs
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site.keep_files.map { |file| parent_dirs(site.in_dest_dir(file)) }.flatten.to_set
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end
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# Private: Creates a regular expression from the config's keep_files array
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#
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# Examples
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# ['.git','.svn'] creates the following regex: /\/(\.git|\/.svn)/
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#
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# Returns the regular expression
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def keep_file_regex
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or_list = site.keep_files.join("|")
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pattern = "\/(#{or_list.gsub(".", "\.")})"
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Regexp.new pattern
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end
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end
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end
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end
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