From: jzakiya@... (Jabari Zakiya)
Date: 2004-09-03T03:25:19+09:00
Subject: Re: Searching Directories

Osuka Adartse <rocioestradacastaneda@prodigy.net.mx> wrote in message news:<4136971B.8090208@prodigy.net.mx>...
[...]
> my lil' changes FWIW
> 
> def dirsearch(namefile, topdir, outfile)
>    require 'find'
>    out = File.new(outfile, "w")
>    #Total number of files found
>    total = 0
> 
>    # Array with file extensions to check for
>    exts = %w{.doc .rtf .txt}
> 
>    # Check entries in each subdirectory of TopDir
>    Find.find(topdir){|entry|
>      # we're looking for files not dirs and files thta match exts so...
>      if !FileTest.directory?(entry) && exts.include?(File.extname(entry))
>         # Check for each name in namefile
>         File.open(namefile).each{|name| name = name.chomp
>           # If name is part of basename of file
>           if File.basename(entry) =~ /#{name}/
>             # Write line to output file and screen if there is a match
>             out.printf("%-16s: %-48s: 
> %s\n",name,entry,File.mtime(entry).strftime("%d-%b-%Y %H:%M"))
>             #either this line with mtime's output as it is or formatted 
> with strftime
>             #strftime makes things more my way omitting info I don't 
> need/want...
>             #option#printf("%-24s: %-48s: 
> %s\n",name,entry,File.mtime(entry))
>             printf("%-16s: %-48s: 
> %s\n",name,entry,File.mtime(entry).strftime("%d-%b-%Y %H:%M"))
>             total += 1
>           end
>         }
>      end
>    }
>    print "Total files = #{total} \n"
>    out.close
> end
> 
> 
> cheers
> Adartse

---------------------------------------------------------
Taking everyones suggestions into account here is my new version.

This version should be more amenable to different systems.
I didn't bother to do elaborate output formatting because
the person who needs the output is satisfied with the 
current format. I will use the formatting suggestions if
I need to in the future. There also is a default output file.

One thing I DO NEED is help on is EXCEPTION HANDLING!
I encountered CORRUPTED directories on a disk I searched
through, which caused the program to bomb with an error
message. I would like suggestions on including handling
DIR/FILE EXCEPTIONS. Ideally, I would like to be able to
continue searching when EXCEPTIONS are met and record 
what the EXCEPTION (corrupted DIR/FILE) was. Is this possible?

Nobu, I didn't understand your comment about the Regexp
searching. Could you explain in more detail the issue, and
an alternative approach.

Also, I could have first put all the names in 'namefile'
in an array, and then iterate over that, for purposes of
speed, but in this case it doesn't matter. I might try it
though, just to see if it speeds things up appreciably.

Again, thanks is advance for your help and suggestions!  ;-)

---------------------------------------------------------
require 'find'

def dirsearch(namefile, topdir, outputfile='searchresults.txt')

outfile = File.new(outputfile, "w")
#Total number of files found
total = 0

# Array with file extensions to check for
exts = %w{.doc .rtf .txt}

# Check entries in each subdirectory of topdir
Find.find(topdir){|entry|
  # If entry is a file with a desired extension
  if File.file?(entry) && exts.include?(File.extname(entry))
     # Check for each name in namefile
     File.open(namefile).each{|name| name = name.chomp
       # If name is part of basename of file
       if File.basename(entry) =~ /#{name}/
          # Write line to output file and screen if there is a match
          outfile.puts("#{name}:\n #{entry}, #{File.stat(entry).mtime.to_s}")
          puts "#{name}:\n #{entry}, #{File.stat(entry).mtime.to_s}"
          total += 1
       end
     }
  # Else get next entry
  else
     next
  end
}
print "Total files = ", total , "\n"
outfile.close
end