I have cleaned up the Ruby code in that 2016 link, How do I copy folder/directory structure without copying the contents .
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Tested successfully on macOS High Sierra 10.13.4 with Ruby 2.3.3p222.
set dest_string to "Choose a destination folder. If it does not exist," & return & ¬
"make a new folder (give it a name), and choose the blank folder"
try
set srcfolder to POSIX path of (choose folder with prompt "Choose a source folder:")
set destfolder to POSIX path of (choose folder with prompt dest_string)
on error errmsg number errnbr
if errnbr = -128 then
display dialog "User cancelled."
end if
return
end try
set argvector to srcfolder's quoted form & space & destfolder's quoted form
if (dupe_folder(argvector) as boolean) is equal to true then
display dialog "New folders structure complete:" & return & destfolder as text
else
display dialog "Ruby structure duplication process has failed."
end if
return
on dupe_folder(args)
return do shell script "ruby <<'EOF' - " & args & "
#!/usr/bin/ruby
# frozen_string_literal: true
# attribution: Craig Williams at MacScripter: http://macscripter.net/viewtopic.php?id=31401
require 'find'
require 'fileutils'
source, dest = ARGV.map { |d| File.expand_path(d) }
IGNORE = ['.pages', '.numbers', '.key', '.rtfd', '.app', '.scptd', '.bundle',
'.workflow', '.framework', '.dylib', '.photolibrary', '.photoslibrary',
'.gem'].freeze
Find.find(source) do |item|
next if !File.directory?(item) || item == source
Find.prune if IGNORE.include?(File.extname(item))
FileUtils.mkdir_p(dest + item.gsub(source, ''))
end
# returns true if dest dir is not empty, indicating success
puts !Dir.glob(File.join(dest, '**')).empty?
EOF"
end dupe_folder
