/[fuse-comp]/fuse-comp.pl
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Diff of /fuse-comp.pl

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revision 13 by dpavlin, Mon Jul 9 11:12:48 2007 UTC revision 19 by dpavlin, Mon Jul 9 15:59:57 2007 UTC
# Line 19  my $mount = { Line 19  my $mount = {
19          tmp             => '/dev/shm/comp',          tmp             => '/dev/shm/comp',
20  };  };
21    
22  my $debug = 1;  my $debug = 0;
23    
24  my $skip_extensions_regex = qr/\.(?:sw[a-z]|gif|png|jpeg|jpg|avi|rar|zip|bz2|gz|tgz|avi|mpeg|mpg|tmp|temp)$/i;  my $skip_extensions_regex = qr/\.(?:sw[a-z]|gif|png|jpeg|jpg|avi|rar|zip|bz2|gz|tgz|avi|mpeg|mpg|tmp|temp)$/i;
25    
# Line 103  sub x_getdir { Line 103  sub x_getdir {
103    
104  sub file_copy {  sub file_copy {
105          my ( $s_opt, $s_path, $d_opt, $d_path ) = @_;          my ( $s_opt, $s_path, $d_opt, $d_path ) = @_;
106          warn "## file_copy( $s_opt $s_path [",-s $s_path,"] $d_opt $d_path [",-e $d_path ? -s $d_path : 'new',"])\n";          warn "## file_copy( $s_opt $s_path [",-s $s_path,"] $d_opt $d_path [",-e $d_path ? -s $d_path : 'new',"])\n" if $debug;
107          open(my $s, $s_opt, $s_path ) || confess "can't open $s_path: $!\npending = ", dump( $pending );          open(my $s, $s_opt, $s_path ) || confess "can't open $s_path: $!\npending = ", dump( $pending );
108          open(my $d, $d_opt, $d_path ) || confess "can't open $d_path: $!";          open(my $d, $d_opt, $d_path ) || confess "can't open $d_path: $!";
109          my $buff;          my $buff;
# Line 146  sub x_open { Line 146  sub x_open {
146                  rdwr => $mode && O_RDWR,                  rdwr => $mode && O_RDWR,
147                  append => $mode && O_APPEND,                  append => $mode && O_APPEND,
148                  create => $mode && O_CREAT,                  create => $mode && O_CREAT,
149                    trunc => $mode && O_TRUNC,
150          };          };
151          warn "# open( $file, $mode ) pending: ", $pending->{$file}->{open}, " mode: ", dump( $mode_desc ),"\n";          my $path = fixup($file);
152            warn "## open( $file, $mode ) pending: ", $pending->{$file}->{open}, " mode $mode: ", dump( $mode_desc )," $path [", -s $path, "]\n" if $debug;
153          my $fh;          my $fh;
154    
         my $path = fixup($file);  
155          my $tmp = $mount->{tmp} . '/' . $file;          my $tmp = $mount->{tmp} . '/' . $file;
156          if ( -e $tmp ) {          if ( -e $tmp ) {
157                  $path = $tmp;                  $path = $tmp;
# Line 161  sub x_open { Line 162  sub x_open {
162                  file_copy( '<:gzip', $path, '>', $tmp );                  file_copy( '<:gzip', $path, '>', $tmp );
163                  $path = $tmp;                  $path = $tmp;
164          }          }
165          warn ">>> open abs path: $path [", -s $path, "]\n";          warn "<<< open abs path: $path [", -e $path ? -s $path : 'new' , "]\n";
166          return -$! unless sysopen($fh , $path, $mode);          return -$! unless sysopen($fh , $path, $mode);
167          close($fh);          close($fh);
168    
# Line 202  sub x_write { Line 203  sub x_write {
203          return -ENOSYS() unless open($fh,'+<',$pending->{$file}->{path});          return -ENOSYS() unless open($fh,'+<',$pending->{$file}->{path});
204          if($rv = seek( $fh ,$off,SEEK_SET)) {          if($rv = seek( $fh ,$off,SEEK_SET)) {
205                  $rv = print( $fh $buf );                  $rv = print( $fh $buf );
206                  warn "## ", $pending->{$file}->{path}, " $off ",length( $buf ), "\n" if $debug;                  warn "## write ", $pending->{$file}->{path}, " $off ",length( $buf ), "\n" if $debug;
207          }          }
208          $rv = -ENOSYS() unless $rv;          $rv = -ENOSYS() unless $rv;
209          close($fh);          close($fh);
# Line 217  sub x_unlink   { return unlink_all( shif Line 218  sub x_unlink   { return unlink_all( shif
218  sub x_symlink { return symlink(shift,fixup(shift)) ? 0 : -$!; }  sub x_symlink { return symlink(shift,fixup(shift)) ? 0 : -$!; }
219    
220  sub x_rename {  sub x_rename {
221          my ($old) = fixup(shift);          my ($old,$new) = @_;
222          my ($new) = fixup(shift);          my $old_path = fixup($old);
223          my ($err) = rename($old,$new) ? 0 : -ENOENT();          my $new_path = fixup($new);
224            $new_path .= '.gz' if ( $old_path =~ m/\.gz$/ && $new_path !~ m/\.gz$/ );
225    
226            my $err = rename($old_path,$new_path) ? 0 : -ENOENT();
227            warn "## rename( $old_path => $new_path ) = $err\n";
228    
229            my $tmp = $mount->{tmp} . '/' . $old;
230            if ( -e $tmp ) {
231                    my $new_tmp = $mount->{tmp} . '/' . $new;
232                    rename $tmp, $new_tmp || confess "can't rename $tmp -> $new_tmp : $!";
233            }
234    
235          return $err;          return $err;
236  }  }
237  sub x_link { return link(fixup(shift),fixup(shift)) ? 0 : -$! }  sub x_link { return link(fixup(shift),fixup(shift)) ? 0 : -$! }
# Line 243  sub x_chmod { Line 255  sub x_chmod {
255          return $err;          return $err;
256  }  }
257    
258  sub x_truncate { return truncate(fixup(shift),shift) ? 0 : -$! ; }  sub x_truncate {
259            my ( $file,$size ) = @_;
260            my $path = fixup($file);
261            my $rv = truncate( $path, $size ) ? 0 : -$! ;
262            if ( $path =~ m/\.gz$/ ) {
263                    my $no_gz = $path;
264                    $no_gz =~ s/\.gz$//;
265                    rename $path, $no_gz || confess "can't rename $path -> $no_gz: $!";
266            }
267            warn "## truncate( $file $size ) $path [", -s $path, "]\n";
268            $pending->{$file}->{write}++;
269            return $rv;
270    }
271  sub x_utime { return utime($_[1],$_[2],fixup($_[0])) ? 0:-$!; }  sub x_utime { return utime($_[1],$_[2],fixup($_[0])) ? 0:-$!; }
272    
273  sub x_mkdir { my ($name, $perm) = @_; return 0 if mkdir(fixup($name),$perm); return -$!; }  sub x_mkdir { my ($name, $perm) = @_; return 0 if mkdir(fixup($name),$perm); return -$!; }
# Line 290  sub x_release { Line 314  sub x_release {
314                          file_copy( '<', $path, '>:gzip', $dest . '.gz' );                          file_copy( '<', $path, '>:gzip', $dest . '.gz' );
315    
316                          # FIXME add timeout to remove uncompressed version?                          # FIXME add timeout to remove uncompressed version?
317                            # FIXME leave uncompressed file if smaller than compressed
318                          unlink $path || warn "can't remove $path: $!";                          unlink $path || warn "can't remove $path: $!";
319                  }                  }
320          } else {          } else {

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