src/packaging/MacOS/csrvdbmerge.pl

   1 #!/usr/bin/perl
   2 # CellServDB merging script
   3 # only tested on darwin systems
   4
   5 use File::Copy;
   6 use IO::File;
   7 use Fcntl;
   8 use strict;
   9
  10
  11 sub doit {
  12   my ($cur,$in,$last,$new);
  13   my ($line, $oline, $cell, $pos, $which);
  14   my %cellstat;
  15
  16   $cur=new IO::File '<CellServDB';
  17   $last=new IO::File '<CellServDB.master.last';
  18
  19   while (defined($line=<$cur>)) {
  20     if ($line =~ /^>([-a-zA-Z0-9\._]+)\s/) {
  21       if ($cell) {
  22         $oline=<$last>;
  23         if ($oline && $oline !~ /^>/) { # fewer servers in user's file than master
  24           $cellstat{$cell} = 1;
  25         }
  26       }
  27       $cell=$1;
  28       $cellstat{$cell}=2;
  29       # start at the beginning of the old file, and find $cell
  30       $last->seek(0,SEEK_SET);
  31       while (<$last>) {
  32         if (/>$cell\s/) { # note that we don't compare the cell comments
  33           $cellstat{$cell}=0;
  34           last;
  35         }
  36       }
  37       next;
  38     }
  39     if (! $cell) {
  40       die "First CellServDB line isn't a cell\n";
  41     }
  42     next if ($cellstat{$cell} == 2); # cell only in local CellServDB
  43     next if ($cellstat{$cell} == 1); # already found a local change
  44     $oline=<$last>;
  45     if ($oline =~ /^>/) { # more servers in user's file than master
  46       $last->setpos($pos);
  47       $cellstat{$cell} = 1;
  48       next;
  49     }
  50     next if ($line eq $oline);
  51     $cellstat{$cell} = 1;
  52   }
  53   close($last);
  54   $cur->seek(0,SEEK_SET);
  55   $cur=new IO::File '<CellServDB' or die "No CellServDB: $!\n";
  56   $in=new IO::File '<CellServDB.master' or die "No CellServDB.master: $!\n";
  57   $new=new IO::File '>CellServDB.NEW' or die "Cannot create output CellServDB: $!\n";
  58   while (defined($line=<$cur>)) {
  59     if ($line =~ /^>([-a-zA-Z0-9\._]+)\s/) {
  60       $cell=$1;
  61       $which=$cellstat{$cell};
  62       unless ($which) {
  63         $in->seek(0,SEEK_SET);
  64         while (<$in>) {
  65           if (/>$cell\s/) {
  66             last;
  67           }
  68         }
  69         if (defined($_)) {
  70           print $new $_;
  71           while (defined($line=<$in>) && $line !~ /^>/) {
  72             print $new $line;
  73           }
  74         }
  75       }
  76     }
  77     if (! $cell) {
  78       die "First CellServDB line isn't a cell\n";
  79     }
  80     if ($which) {
  81       print $new $line;
  82     }
  83   }
  84   close($in);
  85   close($cur);
  86   close($new);
  87   rename('CellServDB.NEW', 'CellServDB');
  88   copy('CellServDB.master', 'CellServDB.master.last');
  89 }
  90
  91 doit;