#!perl -w

# Copyright (C) 1997 Capella Computers Ltd.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

# :FILE:
# Undo begin integration of a job.

use strict;
use English;
use P4;

# Takes (optional) job id.
sub usage {
    P4::crash("Usage: p4wiu [<job>]");
}

# Parse command line.
my $job;
if ($#ARGV < 0) {
    $job = P4::current_job();
} elsif ($ARGV[0] eq '-h') {
    usage();
} elsif ($ARGV[0] =~ /^\d+$/) {
    $job = shift(@ARGV);
}
if ($#ARGV >= 0) {
    usage();
}

# No need to lock - it is expected that p4ib did it for us already.
# Note that the lock is NOT released on error.
P4::verify_lock($job);
P4::verify_lock('depot');

# Obtain the job record.
my %record = P4::job_record($job);

# Verify pre-conditions.
P4::verify_job_status($job, \%record, 'integ');
P4::verify_current_user(1, 'integ');
P4::verify_job_integration_client($job, \%record, P4::current_client());

# This helps in case something goes wrong.
$record{status} = '_pass';
P4::update_job($job, \%record);

# Need to delete the fix to make change deletable.
my $change = $record{int_chg};
P4::delete_fix($change, $job);

# Revert the state of all files already changed.
my $retry = $record{retry};
$::OUTPUT_AUTOFLUSH = 1;
print "### Revert integration files ...\n";
P4::revert_files($change, '-d', "//depot/baseline/...");

# Delete the change for working on this branch.
P4::delete_change($change);

# Re-get all the files (in case some were deleted).
$::OUTPUT_AUTOFLUSH = 1;
print "### Get integration files ...\n";
P4::get_files("//depot/baseline/...");

# Update the job record.
$record{status} = 'pass';
$record{int_chg} = '-';
$record{int_client} = '-';
P4::update_job($job, \%record);

# It is now safe to unlock the depot and the job.
P4::unlock('depot', $job);

# Notify caller.
my $user = $record{user};
print "Integration of job $job (attempt #$retry) by $user has been undone.\n";

# Be nice.
1;