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Re: [RFC/PATCH] Implement poor-man's submodule support using commit hooks

From
Randal L. Schwartz <merlyn@stonehenge.com>
Date
Dec 20, 2006, 15:42 UTC
Message-ID
<86y7p21smq.fsf@blue.stonehenge.com>
In-Reply-To
<200612201440.41784.andyparkins@gmail.com>
>>>>> "Andy" == Andy Parkins <andyparkins@gmail.com> writes:

Andy> fd_old = open( "someexistingfile" ); Andy> unlink( "someexistingfile" ); Andy> fd_new = open( "someexistingfile" );

This is dangerous if the process aborts suddenly.
Might be better to do this:

mumble_command < thefile > thefile.$$ mv thefile.$$ thefile

The second move will be atomic. The only problem will be if the process aborts, which will leave stale temp files around.

-- 
Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095
<merlyn@stonehenge.com> <URL:http://www.stonehenge.com/merlyn/>
Perl/Unix/security consulting, Technical writing, Comedy, etc. etc.
Previous: Andy ParkinsNext: Johannes Schindelin
Message 8 of 14 in “Implement poor-man's submodule support using commit hooks”
  1. Implement poor-man's submodule support using commit hooksAndy Parkins, Dec 20, 2006
  2. Johannes SixtDec 20, 2006
  3. Andy ParkinsDec 20, 2006
  4. Jakub NarebskiDec 20, 2006
  5. Andy ParkinsDec 20, 2006
  6. Rogan DawesDec 20, 2006
  7. Andy ParkinsDec 20, 2006
  8. Randal L. SchwartzDec 20, 2006
  9. Johannes SchindelinDec 20, 2006
  10. Martin WaitzDec 20, 2006
  11. Andy ParkinsDec 20, 2006
  12. Andy ParkinsDec 20, 2006
  13. Martin WaitzDec 20, 2006
  14. Johannes SixtDec 20, 2006

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