Project

General

Profile

Actions

Feature #6337

open

FileUtils#sync

Added by trans (Thomas Sawyer) almost 12 years ago. Updated about 6 years ago.

Status:
Assigned
Target version:
-
[ruby-core:44520]

Description

=begin
I'd like to see some sort of FileUtils#sync method to sync the contents of one directory with another.

Here is a prototype definition:

#
# Synchronize a destination directory with a source directory.
#
def sync(src, dst, options={})
  src_files = Dir[File.join(src, '**', '*')].map{ |f| f.sub(src+'/', '') }
  dst_files = Dir[File.join(dst, '**', '*')].map{ |f| f.sub(dst+'/', '') }

  removal = dst_files - src_files

  rm_dirs, rm_files = [], []
  removal.each do |f|
    path = File.join(dst, f)
    if File.directory?(path)
      rm_dirs << path
    else
      rm_files << path
    end
  end

  rm_files.each { |f| rm(f) }
  rm_dirs.each  { |d| rmdir(d) }

  src_files.each do |f|
    src_path = File.join(src, f)
    dst_path = File.join(dst, f)
    if File.directory?(src_path)
      mkdir_p(dst_path)
    else
      parent = File.dirname(dst_path) 
      mkdir_p(parent) unless File.directory?(parent)
      install(src_path, dst_path)
    end
  end
end

I haven't tested this beyond a simple trial. It needs improvement. For one, it probably should be able to handle regular files as arguments too. It also needs to handle verbose and dryrun options properly. Nonetheless, with improvements, would be okay for such to become new feature for FileUtils?

=end

Updated by mame (Yusuke Endoh) almost 12 years ago

  • Status changed from Open to Assigned
  • Assignee set to matz (Yukihiro Matsumoto)

Updated by bitsweat (Jeremy Daer) almost 12 years ago

"Sync" can mean many things. See the long list of options on rsync's man page. This makes sense as a separate library that relies on FileUtils. It's a complex high-level feature, not a low-level "composable" operation like mv or rm.

Updated by trans (Thomas Sawyer) almost 12 years ago

Okay, a better name for this method is probably in order. If anyone can think of one?

@bitsweet I understand what your saying, but I'm not advocating for an implementation of rsync or anything close to it. It's just local fs method that should do little more than install present files and rm non-present files. The only option other then verbose and noop that it might support that I can think of is force.

Updated by mame (Yusuke Endoh) over 11 years ago

  • Target version changed from 1.9.3 to 2.6
Actions #5

Updated by naruse (Yui NARUSE) about 6 years ago

  • Target version deleted (2.6)
Actions

Also available in: Atom PDF

Like0
Like0Like0Like0Like0Like0