[tex-live] tlmgr leaves texlive.tlpdb.SOMETHING

[Reinhard Kotucha]

On 2014-07-02 at 20:26:13 +0900, Norbert Preining wrote:

 > On Wed, 02 Jul 2014, Reinhard Kotucha wrote:

 >> However, whenever I run 'tlmgr update' a temporary file is
 >> created in $TMPDIR.  It's not removed if it's not needed anymore.
 >> It's no problem either but IMO it's good practice to remove
 >> temporary files if they aren't needed anymore.
 >> 
 >> For getnonfreefonts I wrote a signal handler which supports
 >> signals supported by Unix and Windows.  I derived the Windows
 >> stuff from the sources of the Windows C runtime library
 >> (MSVCRT.DLL).
 > 
 > Please send me the code and I will see how to include it.

-------------------------------------------------------
# Create a list of signals
sub signals { 
  my @signals;
  my @common_signals=qw(INT ILL FPE SEGV TERM ABRT);
  my @signals_Unix=qw(QUIT BUS PIPE);
  my @signals_W32=qw(BREAK);

  if (win32) {
    @signals=(@common_signals, @signals_W32);
  } else {
    @signals=(@common_signals, @signals_Unix);
  }
  return @signals;
}


# The actual signal handler.
sub remove_tmp_files {
  # put your unlink/rmdir code here
}


# install signal handlers
foreach my $signal (signals()) { 
  $SIG{"$signal"}=\&remove_tmp_files;
}


# Delete temporary files when the program exits normally.
# You can do this either when the files are not needed
# anymore or when the script exits.  The code below behaves
# like atexit() in C.

END {
  remove_tmp_files();
}
-------------------------------------------------------

I recommend to put the definition of signals() into TLUtils.pm so that
it can be used by other scripts too.  When you port fmtutil to Perl, I
suppose that you want to create format files within a temporary
directory and overwrite the existing files only if the new ones are
created successfully.  AFAIK this is what fmtutil and mktexlsr do ATM.

BTW, I recommend to prefix temporary files with the name of the
program which created them.  For instance "tlmgr-J22DbpskXl" instead
of "J22DbpskXl".  If many temporary files are created (by fmtutil, for
example) it's better to create a directory "$TMPDIR/<progname>/".
This recommendation is not tlmgr- or TeX Live- specific, it would be
nice if *all* programs follow this convention.

Then such files can be removed conveniently:

 $ rm $TMPDIR/tlmgr-*  
 $ rm -rf $TMPDIR/fmtutil  

It's best, of course, if programs delete their temporary files
themselves when they are not needed anymore.

Regards,
  Reinhard

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Reinhard Kotucha                            Phone: +49-511-3373112
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