eval '(exit $?0)' && eval 'exec perl -S $0 ${1+"$@"}'
  & eval 'exec perl -S $0 $argv:q'
  if 0;
#  THE PRECEEDING STUFF EXECS perl via $PATH
# -*-Fundamental-*-

#  $Id: //guest/richard_geiger/utils/cvs2p4/bin/genmetadata#14 $
#
#  Richard Geiger
#

require 5.000;

sub dirname
{
  local($dir) = @_;
  $dir =~ s%^$%.%; $dir = "$dir/";
  if ($dir =~ m%^/[^/]*//*$%) { return "/"; }
  if ($dir =~ m%^.*[^/]//*[^/][^/]*//*$%)
  { $dir =~ s%^(.*[^/])//*[^/][^/]*//*$%$1%; { return $dir; } }
  return ".";
}

use Carp; # ...or flounder. (This will fail unless 'perl' is a perl5!)
$| = 1;

($Myname = $0) =~ s%^.*/%%;
$Mydir = &dirname($0);
$Here = `/bin/pwd`; chop $Here;
if ($Mydir ne ".") { chdir "$Mydir" || die "$Myname: can't chdir \"$Mydir\": $!"; }
chdir ".." || die "$Myname: can't chdir \"..\": $!";
$Mydir = `/bin/pwd`; chop $Mydir;
chdir $Here || die "$Myname: can't chdir \"$Here\": $!";

require "$Mydir/lib/util.pl";

$Usage = <<LIT;
$Myname: usage: $Myname
LIT


sub usage
{
  print STDERR $Usage;
  exit 1;
}


sub help
{
  print STDERR <<LIT;
$Usage
$Myname is not done yet. Be patient.
LIT
  exit 1;
}


sub mklabel
{
  my ($label, @Revs) = @_;

  print "make label: $label\n";

  $label = &atq($label);
  my $time = time;

  print DBLBLS "\@pv\@ 2 \@db.domain\@ $label 108 \@\@ \@\@ ".
                  "\@cvs2p4\@ $time $time 8 0 \@Created by cvs2p4.\@\n";

  foreach my $rev (@Revs)
    {
      my ($f, $r) = split(/#/, $rev);
      $f = &atq($f);
      print DBLBLS "\@pv\@ 0 \@db.label\@ $label $f $r\n";
    }
}


# option switch variables get defaults here...

$Convdir = "";

$Boolopt = 0;
$Valopt = 0;

while ($#ARGV >= 0)
  {
    if ($ARGV[0] eq "-boolopt")    { $Boolopt = 1; shift; next; }
    elsif ($ARGV[0] eq "-valopt")
      {
        shift; if ($ARGV[0] < 0) { &usage; }
        $Valopt = $ARGV[0]; shift; next;
      }
    elsif ($ARGV[0] eq "-help")
      { &help; }
    elsif ($ARGV[0] =~ /^-/) { &usage; }
    push(@Args, $ARGV[0]);
    shift;
  }

if ($#Args ne 0) { &usage; }

$Convdir = $Args[0];
#chdir $Convdir || die "$Myname: can't chdir \"$Convdir\": $!";
#$Convdir = `/bin/pwd`; chop $Convdir;
#chdir $Here || die "$Myname: can't chdir \"$Here\": $!";

require "$Convdir/config";

$Metadata = "$Convdir/metadata";
$Labels   = "$Convdir/labels";
$Rrevmap  = "$Convdir/rrevmap";
$DBlbls   = "$P4ROOT/dblbls";
$Checkpoint = "checkpoint";

#  Path the the p4 client command
#
if (! defined($P4)) { $P4 = "/usr/local/bin/p4"; }
if (! -x ($P4))
  { print "$Myname: No executable \"p4\" command at \"$P4\".\n"; exit 1; }

$P4 = "$P4 -p $P4PORT -c cvs2p4 -u $P4USER";

use DB_File;
$DBMCLASS="DB_File";

if (! tie(%RREVMAP, $DBMCLASS, $Rrevmap))
  { print "$Myname: can't tie \"$Rrevmap\": $!\n"; exit 1; }

if (! open(LABELS, "<$Labels"))
  { print "$Myname: can't open \">$Labels\": $!\n"; exit 1; }

#  Open the db metadata (journal format) file we will write
#
if (! open(DBLBLS, ">$DBlbls"))
  { print "$Myname: can't open \"$DBlbls\": $!\n"; exit 1; }

@Revs = ();
while (<LABELS>)
  {
    if (/^([^\s]+)/)
      {
        if ($#Revs >= 0) { &mklabel($label, @Revs); }
        $label = $1;
        @Revs = ();
      }
    elsif (/^  (.*)/)
      {
        if ($revs = $RREVMAP{$1})
          {
            foreach $rev (split(/\001/, $revs))
              { push (@Revs, $rev); }
          }
      }
  }
   
if ($#Revs >= 0) { &mklabel($label, @Revs); }

close DBLBLS;
close LABELS;
untie %RREVMAP;

$DBlbls =~ s%^.*/%%;

$P4D = "$P4D -r .";

if (&s("cd $P4ROOT && $P4D -jr $DBlbls"))
  { print "$Myname: \"$P4D -jr $DBlbls\" failed.\n"; exit 1; }

if (&s("cd $P4ROOT && rm -f $Checkpoint; $P4D -jd $Checkpoint"))
  { print "$Myname: \"$P4D -jd $Checkpoint\" failed.\n"; exit 1; }

exit 0;