File Coverage

inc/File/Copy/Recursive.pm

Criterion	Covered	Total	%
statement	88	172	51.1
branch	43	162	26.5
condition	20	77	25.9
subroutine	12	20	60.0
pod	12	12	100.0
total	175	443	39.5

#line 1
package File::Copy::Recursive;

use strict;
BEGIN {
    # Keep older versions of Perl from trying to use lexical warnings
    $INC{'warnings.pm'} = "fake warnings entry for < 5.6 perl ($])" if $] < 5.006;
}
use warnings;

use Carp;
use File::Copy;
use File::Spec; #not really needed because File::Copy already gets it, but for good measure :)

use vars qw(
    @ISA      @EXPORT_OK $VERSION  $MaxDepth $KeepMode $CPRFComp $CopyLink
    $PFSCheck $RemvBase $NoFtlPth  $ForcePth $CopyLoop $RMTrgFil $RMTrgDir
    $CondCopy $BdTrgWrn $SkipFlop  $DirPerms
);

require Exporter;
@ISA = qw(Exporter);
@EXPORT_OK = qw(fcopy rcopy dircopy fmove rmove dirmove pathmk pathrm pathempty pathrmdir);
$VERSION = '0.38';

$MaxDepth = 0;
$KeepMode = 1;
$CPRFComp = 0;
$CopyLink = eval { local $SIG{'__DIE__'};symlink '',''; 1 } || 0;
$PFSCheck = 1;
$RemvBase = 0;
$NoFtlPth = 0;
$ForcePth = 0;
$CopyLoop = 0;
$RMTrgFil = 0;
$RMTrgDir = 0;
$CondCopy = {};
$BdTrgWrn = 0;
$SkipFlop = 0;
$DirPerms = 0777;

my $samecheck = sub {
   return 1 if $^O eq 'MSWin32'; # need better way to check for this on winders...
   return if @_ != 2 || !defined $_[0] || !defined $_[1];
   return if $_[0] eq $_[1];

   my $one = '';
   if($PFSCheck) {
      $one    = join( '-', ( stat $_[0] )[0,1] ) || '';
      my $two = join( '-', ( stat $_[1] )[0,1] ) || '';
      if ( $one eq $two && $one ) {
          carp "$_[0] and $_[1] are identical";
          return;
      }
   }

   if(-d $_[0] && !$CopyLoop) {
      $one    = join( '-', ( stat $_[0] )[0,1] ) if !$one;
      my $abs = File::Spec->rel2abs($_[1]);
      my @pth = File::Spec->splitdir( $abs );
      while(@pth) {
         my $cur = File::Spec->catdir(@pth);
         last if !$cur; # probably not necessary, but nice to have just in case :)
         my $two = join( '-', ( stat $cur )[0,1] ) || '';
         if ( $one eq $two && $one ) {
             # $! = 62; # Too many levels of symbolic links
             carp "Caught Deep Recursion Condition: $_[0] contains $_[1]";
             return;
         }

         pop @pth;
      }
   }

   return 1;
};

my $glob = sub {
    my ($do, $src_glob, @args) = @_;

    local $CPRFComp = 1;

    my @rt;
    for my $path ( glob($src_glob) ) {
        my @call = [$do->($path, @args)] or return;
        push @rt, \@call;
    }

    return @rt;
};

my $move = sub {
   my $fl = shift;
   my @x;
   if($fl) {
      @x = fcopy(@_) or return;
   } else {
      @x = dircopy(@_) or return;
   }
   if(@x) {
      if($fl) {
         unlink $_[0] or return;
      } else {
         pathrmdir($_[0]) or return;
      }
      if($RemvBase) {
         my ($volm, $path) = File::Spec->splitpath($_[0]);
         pathrm(File::Spec->catpath($volm,$path,''), $ForcePth, $NoFtlPth) or return;
      }
   }
  return wantarray ? @x : $x[0];
};

my $ok_todo_asper_condcopy = sub {
    my $org = shift;
    my $copy = 1;
    if(exists $CondCopy->{$org}) {
        if($CondCopy->{$org}{'md5'}) {

        }
        if($copy) {

        }
    }
    return $copy;
};

sub fcopy {
   $samecheck->(@_) or return;
   if($RMTrgFil && (-d $_[1] || -e $_[1]) ) {
      my $trg = $_[1];
      if( -d $trg ) {
        my @trgx = File::Spec->splitpath( $_[0] );
        $trg = File::Spec->catfile( $_[1], $trgx[ $#trgx ] );
      }
      $samecheck->($_[0], $trg) or return;
      if(-e $trg) {
         if($RMTrgFil == 1) {
            unlink $trg or carp "\$RMTrgFil failed: $!";
         } else {
            unlink $trg or return;
         }
      }
   }
   my ($volm, $path) = File::Spec->splitpath($_[1]);
   if($path && !-d $path) {
      pathmk(File::Spec->catpath($volm,$path,''), $NoFtlPth);
   }
   if( -l $_[0] && $CopyLink ) {
      carp "Copying a symlink ($_[0]) whose target does not exist"
          if !-e readlink($_[0]) && $BdTrgWrn;
      symlink readlink(shift()), shift() or return;
   } else {
      copy(@_) or return;

      my @base_file = File::Spec->splitpath($_[0]);
      my $mode_trg = -d $_[1] ? File::Spec->catfile($_[1], $base_file[ $#base_file ]) : $_[1];

      chmod scalar((stat($_[0]))[2]), $mode_trg if $KeepMode;
   }
   return wantarray ? (1,0,0) : 1; # use 0's incase they do math on them and in case rcopy() is called in list context = no uninit val warnings
}

sub rcopy {
    if (-l $_[0] && $CopyLink) {
        goto &fcopy;
    }

    goto &dircopy if -d $_[0] || substr( $_[0], ( 1 * -1), 1) eq '*';
    goto &fcopy;
}

sub rcopy_glob {
    $glob->(\&rcopy, @_);
}

sub dircopy {
   if($RMTrgDir && -d $_[1]) {
      if($RMTrgDir == 1) {
         pathrmdir($_[1]) or carp "\$RMTrgDir failed: $!";
      } else {
         pathrmdir($_[1]) or return;
      }
   }
   my $globstar = 0;
   my $_zero = $_[0];
   my $_one = $_[1];
   if ( substr( $_zero, ( 1 * -1 ), 1 ) eq '*') {
       $globstar = 1;
       $_zero = substr( $_zero, 0, ( length( $_zero ) - 1 ) );
   }

   $samecheck->(  $_zero, $_[1] ) or return;
   if ( !-d $_zero || ( -e $_[1] && !-d $_[1] ) ) {
       $! = 20;
       return;
   }

   if(!-d $_[1]) {
      pathmk($_[1], $NoFtlPth) or return;
   } else {
      if($CPRFComp && !$globstar) {
         my @parts = File::Spec->splitdir($_zero);
         while($parts[ $#parts ] eq '') { pop @parts; }
         $_one = File::Spec->catdir($_[1], $parts[$#parts]);
      }
   }
   my $baseend = $_one;
   my $level   = 0;
   my $filen   = 0;
   my $dirn    = 0;

   my $recurs; #must be my()ed before sub {} since it calls itself
   $recurs =  sub {
      my ($str,$end,$buf) = @_;
      $filen++ if $end eq $baseend;
      $dirn++ if $end eq $baseend;

      $DirPerms = oct($DirPerms) if substr($DirPerms,0,1) eq '0';
      mkdir($end,$DirPerms) or return if !-d $end;
      chmod scalar((stat($str))[2]), $end if $KeepMode;
      if($MaxDepth && $MaxDepth =~ m/^\d+$/ && $level >= $MaxDepth) {
         return ($filen,$dirn,$level) if wantarray;
         return $filen;
      }
      $level++;


      my @files;
      if ( $] < 5.006 ) {
          opendir(STR_DH, $str) or return;
          @files = grep( $_ ne '.' && $_ ne '..', readdir(STR_DH));
          closedir STR_DH;
      }
      else {
          opendir(my $str_dh, $str) or return;
          @files = grep( $_ ne '.' && $_ ne '..', readdir($str_dh));
          closedir $str_dh;
      }

      for my $file (@files) {
          my ($file_ut) = $file =~ m{ (.*) }xms;
          my $org = File::Spec->catfile($str, $file_ut);
          my $new = File::Spec->catfile($end, $file_ut);
          if( -l $org && $CopyLink ) {
              carp "Copying a symlink ($org) whose target does not exist"
                  if !-e readlink($org) && $BdTrgWrn;
              symlink readlink($org), $new or return;
          }
          elsif(-d $org) {
              $recurs->($org,$new,$buf) if defined $buf;
              $recurs->($org,$new) if !defined $buf;
              $filen++;
              $dirn++;
          }
          else {
              if($ok_todo_asper_condcopy->($org)) {
                  if($SkipFlop) {
                      fcopy($org,$new,$buf) or next if defined $buf;
                      fcopy($org,$new) or next if !defined $buf;
                  }
                  else {
                      fcopy($org,$new,$buf) or return if defined $buf;
                      fcopy($org,$new) or return if !defined $buf;
                  }
                  chmod scalar((stat($org))[2]), $new if $KeepMode;
                  $filen++;
              }
          }
      }
      1;
   };

   $recurs->($_zero, $_one, $_[2]) or return;
   return wantarray ? ($filen,$dirn,$level) : $filen;
}

sub fmove { $move->(1, @_) }

sub rmove {
    if (-l $_[0] && $CopyLink) {
        goto &fmove;
    }

    goto &dirmove if -d $_[0] || substr( $_[0], ( 1 * -1), 1) eq '*';
    goto &fmove;
}

sub rmove_glob {
    $glob->(\&rmove, @_);
}

sub dirmove { $move->(0, @_) }

sub pathmk {
   my @parts = File::Spec->splitdir( shift() );
   my $nofatal = shift;
   my $pth = $parts[0];
   my $zer = 0;
   if(!$pth) {
      $pth = File::Spec->catdir($parts[0],$parts[1]);
      $zer = 1;
   }
   for($zer..$#parts) {
      $DirPerms = oct($DirPerms) if substr($DirPerms,0,1) eq '0';
      mkdir($pth,$DirPerms) or return if !-d $pth && !$nofatal;
      mkdir($pth,$DirPerms) if !-d $pth && $nofatal;
      $pth = File::Spec->catdir($pth, $parts[$_ + 1]) unless $_ == $#parts;
   }
   1;
}

sub pathempty {
   my $pth = shift;

   return 2 if !-d $pth;

   my @names;
   my $pth_dh;
   if ( $] < 5.006 ) {
       opendir(PTH_DH, $pth) or return;
       @names = grep !/^\.+$/, readdir(PTH_DH);
   }
   else {
       opendir($pth_dh, $pth) or return;
       @names = grep !/^\.+$/, readdir($pth_dh);
   }

   for my $name (@names) {
      my ($name_ut) = $name =~ m{ (.*) }xms;
      my $flpth     = File::Spec->catdir($pth, $name_ut);

      if( -l $flpth ) {
	      unlink $flpth or return;
      }
      elsif(-d $flpth) {
          pathrmdir($flpth) or return;
      }
      else {
          unlink $flpth or return;
      }
   }

   if ( $] < 5.006 ) {
       closedir PTH_DH;
   }
   else {
       closedir $pth_dh;
   }

   1;
}

sub pathrm {
   my $path = shift;
   return 2 if !-d $path;
   my @pth = File::Spec->splitdir( $path );
   my $force = shift;

   while(@pth) {
      my $cur = File::Spec->catdir(@pth);
      last if !$cur; # necessary ???
      if(!shift()) {
         pathempty($cur) or return if $force;
         rmdir $cur or return;
      }
      else {
         pathempty($cur) if $force;
         rmdir $cur;
      }
      pop @pth;
   }
   1;
}

sub pathrmdir {
    my $dir = shift;
    if( -e $dir ) {
        return if !-d $dir;
    }
    else {
        return 2;
    }

    pathempty($dir) or return;

    rmdir $dir or return;
}

1;

__END__