Find from array and move

ruby-talk
1

Chas Conquest wrote in post #1051998:

I'm needing to cull 900 files from about 3500 files in 100 different
directories.

I have an array with the 900 files ie. ["2100_01", "2102_05", "2105_04",
"etc....."]

That would be an array of fileNAMES.

The files in question are named like so...."2100_01.aif"

Based on the array, I need to match/find these files from within the
100 directories and copy/move each one into a new single directory.

Pathname has quite a few nice tools for this. Something along these
lines could work:

require 'set'
require 'pathname'

array = ... # as described
source = ... # source directory path
target = ... # target directory path

index = array.to_set # more efficient lookup
tgt = Pathname(target)

abort "Not a directory: #{tgt}" unless tgt.directory?

Pathname(source).find do |f|
  f.file? and index.include? f.basename('.aif') and
    f.rename(tgt + f.basename)
end

Kind regards

robert

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