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CorrectingSplitSubversionKeywords

How to block and correct subversion keywords split across lines in .lyx files

A slightly more verbose explanation of this fix can be found at http://dione.no-ip.org/AlexisWiki/CorrectingSvnKeywordsInLyxDocuments.

1. To prevent accidentally committing .lyx files with split SVN keywords, create a subversion pre-commit hook containing:

   #!/usr/bin/env perl
   $repos = $ARGV[0];
   $txn = $ARGV[1];
   $rc = 0; #  assume success till proven otherwise
   foreach $ch (`svnlook changed -t "$txn" "$repos"`) {
       chomp($ch);
       next if ($ch !~ /^[AU]\S*\s+(\S.*)$/);
       $fn = $1;
       next if ($fn !~ /\.lyx$/);
       $cntnt = scalar(`svnlook cat -t "$txn" "$repos" "$fn"`);
       foreach $kw (qw/LastChangedDate LastChangedRevision LastChangedBy HeadURL Id/) {
           next if ($cntnt !~ /\$$kw:\s*\S+\s*\n\s*\$/);
           print STDERR "$0: ERROR: split '$kw' keyword\n";
           $rc = 1;
       }
   }
   exit($rc); 

2. When you try to commit and the hook complains about split lines then correct the problem by running:

   perl -0777 -pi.bak -e 's/\$(LastChangedDate|LastChangedRevision|LastChangedBy|HeadURL|Id):\s*(\S+)\s*\n\s*\$/\$$1: $2 \$/msg' *.lyx
   
   

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