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Re: [PATCH 3/3] cat-file: handle streaming failures consistently

From
Eric Sunshine <sunshine@sunshineco.com>
Date
Oct 31, 2018, 17:38 UTC
Message-ID
<20181031173859.GA717@flurp.local>
In-Reply-To
<20181030232337.GC32038@sigill.intra.peff.net>
On Tue, Oct 30, 2018 at 07:23:38PM -0400, Jeff King wrote:
Show 10 quoted lines
> There are three ways to convince cat-file to stream a blob:
> 
>   - cat-file -p $blob
> 
>   - cat-file blob $blob
> 
>   - echo $batch | cat-file --batch
> 
> In the first two, we simply exit with the error code of
> streaw_blob_to_fd(). That means that an error will cause us
Your "m" got confused and ended up upside-down.
Show 12 quoted lines
> to exit with "-1" (which we try to avoid) without printing
> any kind of error message (which is confusing to the user).
> 
> Instead, let's match the third case, which calls die() on an
> error. Unfortunately we cannot be more specific, as
> stream_blob_to_fd() does not tell us whether the problem was
> on reading (e.g., a corrupt object) or on writing (e.g.,
> ENOSPC). That might be an opportunity for future work, but
> for now we will at least exit with a sane message and exit
> code.
> 
> Signed-off-by: Jeff King <peff@peff.net>
Previous: Jeff KingNext: Jeff King
Message 33 of 39 in “"git fsck" not detecting garbage at the end of blob object files...”
  1. John SzakmeisterJan 7, 2017
  2. Dennis KaarsemakerJan 7, 2017
  3. Jeff KingJan 8, 2017
  4. John SzakmeisterJan 13, 2017
  5. 0/6 loose-object fsck fixes/tighteningJeff King, Jan 13, 2017
  6. 1/6 t1450: refactor loose-object removalJeff King, Jan 13, 2017
  7. 2/6 sha1_file: fix error message for alternate objectsJeff King, Jan 13, 2017
  8. 3/6 t1450: test fsck of packed objectsJeff King, Jan 13, 2017
  9. 4/6 sha1_file: add read_loose_object() functionJeff King, Jan 13, 2017
  10. 5/6 fsck: parse loose object paths directlyJeff King, Jan 13, 2017
  11. Infinite loop regression in git-fsck in v2.12.0Ævar Arnfjörð Bjarmason, Oct 30, 2018
  12. Jeff KingOct 30, 2018
  13. Junio C HamanoOct 30, 2018
  14. Jeff KingOct 30, 2018
  15. Jeff KingOct 30, 2018
  16. 1/3 t1450: check large blob in trailing-garbage testJeff King, Oct 30, 2018
  17. 2/3 check_stream_sha1(): handle input underflowJeff King, Oct 30, 2018
  18. Junio C HamanoOct 31, 2018
  19. Jeff KingOct 31, 2018
  20. Junio C HamanoOct 31, 2018
  21. Jeff KingOct 31, 2018
  22. Jeff KingOct 31, 2018
  23. Junio C HamanoOct 31, 2018
  24. 3/3 cat-file: handle streaming failures consistentlyJeff King, Oct 30, 2018
  25. 0/3 Add a GIT_TEST_FSCK test modeÆvar Arnfjörð Bjarmason, Oct 31, 2018
  26. 1/3 tests: add a "env-bool" helper to test-toolÆvar Arnfjörð Bjarmason, Oct 31, 2018
  27. 2/3 tests: mark those tests where "git fsck" fails at the endÆvar Arnfjörð Bjarmason, Oct 31, 2018
  28. Junio C HamanoNov 1, 2018
  29. 3/3 tests: add a special test setup that runs "git fsck" before exitingÆvar Arnfjörð Bjarmason, Oct 31, 2018
  30. Torsten BögershausenOct 31, 2018
  31. Junio C HamanoOct 31, 2018
  32. Jeff KingOct 31, 2018
  33. Eric SunshineOct 31, 2018
  34. Jeff KingOct 31, 2018
  35. Ævar Arnfjörð BjarmasonOct 30, 2018
  36. Jeff KingOct 30, 2018
  37. 6/6 fsck: detect trailing garbage in all object typesJeff King, Jan 13, 2017
  38. John SzakmeisterJan 19, 2017
  39. John SzakmeisterJan 13, 2017

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