From: "James B. Byrne" <ByrneJB@...>
Date: 2006-02-18T00:58:34+09:00
Subject: Re: Ruby script to Module/Class refactor

William James wrote:
> William James wrote:
>>   Regexp.new(ARGV[1]).match File.basename( p ) }.each{ |p|
>>   FileUtils.move( p, ARGV[2] ) }
> 
> Please pardon previous prolixity.
> 
> require 'fileutils'
> FileUtils.move Dir[ File.join(ARGV[0], "*") ].select{ |p|
>   Regexp.new(ARGV[1]).match File.basename( p ) }, ARGV[2]


$cat mver.rb
require 'fileutils'
ARGV.each {|a| puts "ARGV[#{ARGV.index(a)}]: #{a}"}

FileUtils.move Dir[ File.join(ARGV[0], "*") ].select{ |p|
    Regexp.new(ARGV[1]).match File.basename( p ) }, ARGV[2]


Does not meet specs:

$ ll data/source data/target
data/source:
total 2268
-rw-rw-rw-  1 byrnejb byrnejb  238480 Feb 16 20:10 QPCCCMR1
-rw-rw-rw-  1 byrnejb byrnejb  785642 Feb  3 11:07 QPCCCMR2
-rw-rw-rw-  1 byrnejb byrnejb 1258930 Feb 16 20:10 QPCCCMR3
-rw-rw-rw-  1 byrnejb byrnejb      60 Feb 16 20:10 XyZQPCCCMR9aBc

data/target:
total 0

[byrnejb@inet05 ruby]$ ruby mver.rb data/source "QPCCCMR*" data/target
ARGV[0]: data/source
ARGV[1]: QPCCCMR*
ARGV[2]: data/target
ARGV[3]: nil
[byrnejb@inet05 ruby]$ ll data/source data/target
data/source:
total 0

data/target:
total 2268
-rw-rw-rw-  1 byrnejb byrnejb  238480 Feb 16 20:10 QPCCCMR1
-rw-rw-rw-  1 byrnejb byrnejb  785642 Feb  3 11:07 QPCCCMR2
-rw-rw-rw-  1 byrnejb byrnejb 1258930 Feb 16 20:10 QPCCCMR3
-rw-rw-rw-  1 byrnejb byrnejb      60 Feb 16 20:10 XyZQPCCCMR9aBc

$ mv data/target/QPCCCMR* data/source
$ ll data/source data/target
data/source:
total 2260
-rw-rw-rw-  1 byrnejb byrnejb  238480 Feb 16 20:10 QPCCCMR1
-rw-rw-rw-  1 byrnejb byrnejb  785642 Feb  3 11:07 QPCCCMR2
-rw-rw-rw-  1 byrnejb byrnejb 1258930 Feb 16 20:10 QPCCCMR3

data/target:
total 8
-rw-rw-rw-  1 byrnejb byrnejb 60 Feb 16 20:10 XyZQPCCCMR9aBc

$ ruby mver.rb data/source QPCCCMR.* data/target .ext
ARGV[0]: data/source
ARGV[1]: QPCCCMR.*
ARGV[2]: data/target
ARGV[3]: .ext
[byrnejb@inet05 ruby]$ ll data/source data/target
data/source:
total 0

data/target:
total 2268
-rw-rw-rw-  1 byrnejb byrnejb  238480 Feb 16 20:10 QPCCCMR1
-rw-rw-rw-  1 byrnejb byrnejb  785642 Feb  3 11:07 QPCCCMR2
-rw-rw-rw-  1 byrnejb byrnejb 1258930 Feb 16 20:10 QPCCCMR3
-rw-rw-rw-  1 byrnejb byrnejb      60 Feb 16 20:10 XyZQPCCCMR9aBc

Globbing (not regexp, there are differences that operations personnel
neither anticipate nor appreciate) does not operate as required,
optional extension is not appended as required, non-positional option
setting is not implemented.  Does not log missing files or files moved
as required. etc.

While I do very much appreciate the information given in your example I
can just as easily write a one line script in bash to accomplish this
task if I exclude all the bells and whistles a production environment
with extensive auditing requirements entails.  But that is not what I am
trying to accomplish. I am finding my way from procedurally based design
into OOd using this embelished script as a baseline for mapping a new
approach to one I am intimately familiar.

Regards,
Jim

-- 
Posted via http://www.ruby-forum.com/.