#! /usr/bin/perl
#
# NAME: renameclient.pl
# DESC: This script uses the original clientspec name to make a new clientspec,
#       and then deletes the old clientspec.

# Command line equivalent
#   p4 client -o OLD | sed '/^Client:/ c\Client: NEW' | p4 client -i
#   OR 
#   p4 client -t OLD NEW
#   OR
#   p4 client -o OLD | sed 's/OLD/NEW/g' | p4 client -i
#   p4 client -d OLD
#
# Other Command line workaround:
#   p4 client -o OLD | sed 's/OLD/NEW/' | p4 client -i
#   p4 client -d OLD
#
# * Note: Set the P4CLIENT variable to the NEW name
#

$user   = shift ARGV;	   	#The current user.
$server = shift ARGV;   	#ip_address:port of your Perforce server.
$clientold = shift ARGV;	#The original clientspec name to rename.
$clientnew = shift ARGV;	#The new clientspec name to replace original.

$p4     = "p4";			# Absolute path to the p4 cli program.

if ($clientold eq $clientnew)
{
  print "\nNew clientspec name must be unique and not already exist.\n\nSelect a clientspec and try again.\n";
  exit 1;
}

# Start with the rename process. Will replace all occurrences in the file thus mapping lines updated also.
$cmd = "\"$p4\" -u $user -p $server client -o \"$clientold\" | sed 's/$clientold/$clientnew/g' | p4 client -i |";

open RENAME, $cmd
  or die "\nCannot run rename clientspec command.\n\n";

$count = 0;

while (<RENAME>)
{

  # Run the command to delete the original clientspec
  $cmd3 = "\"$p4\" -u $user -p $server client -d \"$clientold\" |";

  open CMD3, $cmd3
    or die "\nCannot perform a delete for original clientspec.\n\n";

  while (<CMD3>)
  {
    # Run the command to refresh the clientspec list for the user
    $cmd5 = "\"$p4\" -u $user -p $server clients -m 100 -u $user |";

    open CMD5, $cmd5
      or die "\nCannot run the clientspec list command.\n\n";
  }

  $count++;
}  


if($count ne 0) { print "\nClientspec rename complete.\n\nClientspec renamed from $clientold to $clientnew.\nClientspec $clientold deleted.\n\nPlease make sure the P4CLIENT variable is set to the new name: $clientnew";   }

if($count eq 0) { print "\nNo clientspec rename performed.\n"; }
 
exit 0;