Ruby copy file by extension

Question

I'm trying to execute below command Ruby block from Chef and giving below error.

FileUtils.cp_r Dir.glob "#{node['default']['home']}/standalone/deployments/'*.ear'", "#{node['default']['default_backup_path']}/my_bkp_#{time}", :noop => true, :verbose => true

ArgumentError: wrong number of arguments (given 3, expected 1..2)

Answer 1

Most probably you need parenthesis for your Dir.glob method, it's taking just the first argument being passed, and the rest, is being considered as a FileUtils.cp_r argument, try with:

FileUtils.cp_r(
  Dir.glob(
    "#{node['default']['home']}/standalone/deployments/'*.ear'", 
    "#{node['default']['default_backup_path']}/my_bkp_#{time}"
  ),
  'destination/',
  noop: true,
  verbose: true
)

You're passing two patterns argument to the glob method, that's the reason of the error:

no implicit conversion of String into Integer (TypeError)

Try just using cp_r for each pattern, like:

FileUtils.cp_r(
  Dir.glob("#{node['default']['home']}/standalone/deployments/'*.ear'"), 
  'destination/',
  noop: true,
  verbose: true
)

FileUtils.cp_r(
  Dir.glob("#{node['default']['default_backup_path']}/my_bkp_#{time}"),
  'destination/',
  noop: true,
  verbose: true
)

I think your goal is to iterate get the elements in

• "#{node['default']['home']}/standalone/deployments/'*.ear'"
• "#{node['default']['default_backup_path']}/my_bkp_#{time}"

so you could iterate over these two directories, and use this pattern within the Dir.glob method, like:

patterns = [
  "#{node['default']['home']}/standalone/deployments/'*.ear'", 
  "#{node['default']['default_backup_path']}/my_bkp_#{time}"
]
patterns.each do |pattern|
  FileUtils.cp_r Dir.glob(pattern), 'destination/', noop: true, verbose: true
end

Where 'destination/' is the folder in which the elements will be copied, that you're missing.

Or in the case you want to use the default_backup_path folder as destination, then you don't need the Dir.glob method, just add it as the dest parameter, as a String

FileUtils.cp_r(
  Dir.glob("#{node['default']['home']}/standalone/deployments/'*.ear'"),
  "#{node['default']['default_backup_path']}/my_bkp_#{time}",
  noop: true,
  verbose: true
)