From: Robert Klemme <shortcutter@...>
Date: 2008-05-30T22:09:46+09:00
Subject: Re: Find files

2008/5/30 Clement Ow <clement.ow@asia.bnpparibas.com>:
> Hi, I have a block of code where I would like to traverese into files
> using the Find module and search for files and at the same time have
> exceptions to the list of files that I want to eventually select. (These
> files are in turn used for copying, moving files)
>
> My block of code is as follows:
> $file_exception[0] = [".xls", ".txt"]
> $file_exception[1] = [".txt"]
>
> $source= ["U:/dest1(1)", "U:/movtest/source",  "U:/movtest/new"]
> $dest = ["U:/test_1", "C:/MOVTEST/04-08", "C:/DEL/04-08"]
> $selections = [*,*,*]
>
> sd_a=$source.zip($dest,$selections)
>
>  sd_a.each do |sd|
>  $source, $destination, $selections = sd
>  d= $d1
>  dst= File.join $destination, d
>
>     if $file_exception[i] != nil
>      $source.each do |y|
>        Find.find(y + "/") do |file|
>         src1 << file unless $file_exception[i].each{|x| /#{x}/ =~
> File.basename(file)}
>       end
>     end
>
>      else
>        src1 = $source
>      end
>
>      i = i + 1
>
>       src1.each do |folder|
>          Find.find(folder + "/") do |file|
>                     :
>                     :
> But apparently, the file exception doesnt seem to work.. It doesnt just
> exclude the file exceptions that has the file extentions .txt and .xls,
> it excludes the whole list of files in the first 2 source paths, and
> only executes the files in the 3rd source path. I presume it should be
> something really wrong with the:
>>> src1 << file unless $file_exception[i].each{|x| /#{x}/ =~ File.basename(file)}
> that I cant quite figure(i tried figuring for days!) Help anyone? =)

You can do this:

#!/bin/env ruby

require 'find'

def my_find(source, dest, exclude)
  Find.find source do |file|
    unless exclude === file
      dest_file = file.dup
      dest_file[0...source.length]=dest
      yield file, dest_file
    end
  end
end

my_find ".", "foo", /\.(?:xls|txt)$/ do |from, to|
  print from, " -> ", to, "\n"
  # FileUtils.cp from, to
  # FileUtils.mv from, to
end

Kind regards

robert


-- 
use.inject do |as, often| as.you_can - without end