Module: Berkshelf::FileSyncer
Constant Summary collapse
- IGNORED_FILES =
Files to be ignored during a directory globbing
%w(. ..).freeze
Instance Method Summary collapse
-
#glob(pattern) ⇒ Array<String>
Glob across the given pattern, accounting for dotfiles, removing Ruby’s dumb idea to include ‘.’ and ‘..’ as entries.
-
#sync(source, destination, options = {}) ⇒ true
Copy the files from
source
todestination
, while removing any files indestination
that are not present insource
.
Instance Method Details
#glob(pattern) ⇒ Array<String>
Glob across the given pattern, accounting for dotfiles, removing Ruby’s dumb idea to include ‘.’ and ‘..’ as entries.
20 21 22 23 24 25 |
# File 'lib/berkshelf/file_syncer.rb', line 20 def glob(pattern) Dir.glob(pattern, File::FNM_DOTMATCH).sort.reject do |file| basename = File.basename(file) IGNORED_FILES.include?(basename) end end |
#sync(source, destination, options = {}) ⇒ true
Copy the files from source
to destination
, while removing any files in destination
that are not present in source
.
The method accepts an optional :exclude
parameter to ignore files and folders that match the given pattern(s). Note the exclude pattern behaves on paths relative to the given source. If you want to exclude a nested directory, you will need to use something like **/directory.
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 |
# File 'lib/berkshelf/file_syncer.rb', line 49 def sync(source, destination, = {}) unless File.directory?(source) raise ArgumentError, "`source' must be a directory, but was a " \ "`#{File.ftype(source)}'! If you just want to sync a file, use " \ "the `copy' method instead." end # Reject any files that match the excludes pattern excludes = Array([:exclude]).map do |exclude| [exclude, "#{exclude}/*"] end.flatten source_files = glob(File.join(source, '**/*')) source_files = source_files.reject do |source_file| basename = relative_path_for(source_file, source) excludes.any? { |exclude| File.fnmatch?(exclude, basename, File::FNM_DOTMATCH) } end # Ensure the destination directory exists FileUtils.mkdir_p(destination) unless File.directory?(destination) # Copy over the filtered source files source_files.each do |source_file| relative_path = relative_path_for(source_file, source) # Create the parent directory parent = File.join(destination, File.dirname(relative_path)) FileUtils.mkdir_p(parent) unless File.directory?(parent) case File.ftype(source_file).to_sym when :directory FileUtils.mkdir_p("#{destination}/#{relative_path}") when :link target = File.readlink(source_file) destination = File.(destination) Dir.chdir(destination) do FileUtils.ln_sf(target, "#{destination}/#{relative_path}") end when :file FileUtils.cp(source_file, "#{destination}/#{relative_path}") else type = File.ftype(source_file) raise RuntimeError, "Unknown file type: `#{type}' at " \ "`#{source_file}'. Failed to sync `#{source_file}' to " \ "`#{destination}/#{relative_path}'!" end end # Remove any files in the destination that are not in the source files destination_files = glob("#{destination}/**/*") # Calculate the relative paths of files so we can compare to the # source. relative_source_files = source_files.map do |file| relative_path_for(file, source) end relative_destination_files = destination_files.map do |file| relative_path_for(file, destination) end # Remove any extra files that are present in the destination, but are # not in the source list extra_files = relative_destination_files - relative_source_files extra_files.each do |file| FileUtils.rm_rf(File.join(destination, file)) end true end |