rcs-extract

   1 #!/usr/bin/env perl
   2
   3 #===============================================================
   4 # rcs-extract
   5 # File ID: 26d14f32-5d43-11df-8375-90e6ba3022ac
   6 # Extracts the last checkin from RCS files.
   7 # Reads file names of the ,v files from stdin and stores the
   8 # extracted data under Extracted/ with the same file structure
   9 # it’s found. Example:
  10 #   find -name '*,v' -type f | rcs-extract
  11 #
  12 # Character set: UTF-8
  13 # License: GNU General Public License version 2 or later
  14 # ©opyleft 2004 Øyvind A. Holm <sunny@sunbase.org>
  15 #===============================================================
  16
  17 use strict;
  18 use warnings;
  19 use File::Path;
  20
  21 $| = 1;
  22
  23 my $Pref = ".Extracted/";
  24
  25 while (<>) {
  26         chomp;
  27         my $File = $_;
  28         my $end_found = 0;
  29         print("Opening $File...");
  30         if (open(FromFP, "<$File")) {
  31                 binmode(FromFP);
  32                 my $Dir = "";
  33                 my $dest_dir = "$Pref";
  34                 if ($File =~ m/^(.*)\//) {
  35                         $Dir = $1;
  36                         $dest_dir = "$Pref$Dir";
  37                         D("[\$dest_dir = \"$dest_dir\"]");
  38                         # -d $dest_dir || mkpath($dest_dir, 1) || warn("$dest_dir: Couldn’t create path: $!\n");
  39                 }
  40                 mkpath($dest_dir, 1);
  41                 while (<>) {
  42                         last if /^text$/;
  43                 }
  44                 $Pref =~ s#//#/#g;
  45                 my $to_file = "$Pref$File";
  46                 $to_file =~ s/^(.*),v$/$1/;
  47                 if (-e $to_file) {
  48                         my $Rand = ".rand.$$." . substr(random(), 0, 5);
  49                         warn("$to_file: File already exists, adding random extension: $Rand");
  50                         $to_file .= $Rand;
  51                 }
  52                 if (open(ToFP, ">$to_file")) {
  53                         binmode(ToFP);
  54                         my $Line = "";
  55                         while (<FromFP>) {
  56                                 if (s/([^@])(@)([^@])/$1$3/g) {
  57                                         print(STDERR "[Found end]");
  58                                         $end_found = 1;
  59                                 }
  60                                 s/@@/@/g;
  61                                 $end_found && s/^\@$//;
  62                                 print(ToFP $_);
  63                                 $end_found && last;
  64                         }
  65                         close(ToFP);
  66                         close(FromFP);
  67                 } else {
  68                         warn("$to_file: Unable to open file for write: $!");
  69                 }
  70         } else {
  71                 warn("$File: Unable to open file for read: $!\n");
  72         }
  73 }
  74
  75 sub D {
  76         print(STDERR @_);
  77 }
  78
  79 __END__
  80
  81 =pod
  82
  83 =head1 LICENCE
  84
  85 This program is free software; you can redistribute it and/or modify it
  86 under the terms of the GNU General Public License as published by the
  87 Free Software Foundation; either version 2 of the License, or (at your
  88 option) any later version.
  89
  90 This program is distributed in the hope that it will be useful, but
  91 WITHOUT ANY WARRANTY; without even the implied warranty of
  92 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  93 See the GNU General Public License for more details.
  94
  95 You should have received a copy of the GNU General Public License along
  96 with this program; if not, write to the Free Software Foundation, Inc.,
  97 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  98
  99 =cut
 100
 101 # vim: set fileencoding=UTF-8 filetype=perl foldmethod=marker foldlevel=0 :
 102 # End of file rcs-extract