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Re: [PATCH v3 3/3] fast-export, fast-import: implement signed-commits

From
Luke Shumaker <lukeshu@lukeshu.com>
Date
Apr 30, 2021, 17:07 UTC
Message-ID
<87eeerpupk.wl-lukeshu@lukeshu.com>
In-Reply-To
<xmqqim44fyjj.fsf@gitster.g>

On Thu, 29 Apr 2021 17:42:24 -0600, Junio C Hamano wrote:

Show 22 quoted lines
> 
> Elijah Newren <newren@gmail.com> writes:
> 
> > I do get that we might have to use warn-strip as the default anyway
> > just because some existing tools might rely on it, but do you have any
> > examples outside of git-filter-repo?  Given the filter-repo bug
> > reports I've gotten with users being surprised at commit signatures
> > being stripped (despite the fact that this is documented -- users
> > don't always read the documentation), I'd argue that changing to
> > --signed-commits=abort as the default is probably a good bugfix for
> > both fast-export and for filter-repo.
> 
> Thanks.  The "filter-repo already gets bug reports from the users"
> is a valuable input when deciding if it is reasonable to sell the
> behaviour change as a bugfix to our users.
> 
> Perhaps teaching fast-export to pay attention to two environment
> variables that say "when no --signed-{tag,commit}=<disposition>"
> command line option is given, use this behaviour" would be a good
> enough escape hatch for existing tools and their users, while they
> are waiting for their tools to get updated with the new option you
> are planning to add?

Between Elijah being on-board with changing the default, and the suggested env-var escape hatch, you've won me over.

I'll change the default to 'abort' and implement an env-var escape hatch. Any suggestions on how to name it? `FAST_EXPORT_SIGNED_COMMITS`? Should I give it a `GIT_` prefix? `FILTER_BRANCH_SQUELCH_WARNING` doesn't have a `GIT_` prefix...

Show 8 quoted lines
> Also, I am glad that you brought up another possible behaviour that
> Luke's patch did not add.  Exporting existing signatures that may
> become invalid and deciding what to do with them on the receiving
> end would be a good option to have.  And that would most likely have
> to be done at "fast-import" end, as a commit that "fast-export"
> expected to retain its object name if its export stream were applied
> as-is may not retain the object name when the export stream gets
> preprocessed before being fed to "fast-import".

Elijah suggested that on an earlier version of the patchset too. I agree that it's a splendid idea, but I'm not willing to be the one to do the work of implementing it... at least not in the next few months.

-- 
Happy hacking,
~ Luke Shumaker
Previous: Junio C HamanoNext: Luke Shumaker
Message 21 of 60 in “fast-export, fast-import: implement signed-commits”
  1. 0/3 fast-export, fast-import: implement signed-commitsLuke Shumaker, Apr 22, 2021
  2. 1/3 git-fast-import.txt: add missing LF in the BNFLuke Shumaker, Apr 22, 2021
  3. 2/3 fast-export: rename --signed-tags='warn' to 'warn-verbatim'Luke Shumaker, Apr 22, 2021
  4. Eric SunshineApr 22, 2021
  5. Luke ShumakerApr 22, 2021
  6. Luke ShumakerApr 22, 2021
  7. 3/3 fast-export, fast-import: implement signed-commitsLuke Shumaker, Apr 22, 2021
  8. 0/3 fast-export, fast-import: implement signed-commitsLuke Shumaker, Apr 23, 2021
  9. 1/3 git-fast-import.txt: add missing LF in the BNFLuke Shumaker, Apr 23, 2021
  10. 2/3 fast-export: rename --signed-tags='warn' to 'warn-verbatim'Luke Shumaker, Apr 23, 2021
  11. Junio C HamanoApr 28, 2021
  12. Luke ShumakerApr 29, 2021
  13. Junio C HamanoApr 30, 2021
  14. 3/3 fast-export, fast-import: implement signed-commitsLuke Shumaker, Apr 23, 2021
  15. Junio C HamanoApr 28, 2021
  16. Luke ShumakerApr 29, 2021
  17. Elijah NewrenApr 29, 2021
  18. Junio C HamanoApr 29, 2021
  19. Elijah NewrenApr 30, 2021
  20. Junio C HamanoApr 30, 2021
  21. Luke ShumakerApr 30, 2021
  22. Luke ShumakerApr 30, 2021
  23. Elijah NewrenApr 30, 2021
  24. Luke ShumakerApr 30, 2021
  25. 0/5 fast-export, fast-import: add support for signed-commitsLuke Shumaker, Apr 30, 2021
  26. 1/5 git-fast-import.txt: add missing LF in the BNFLuke Shumaker, Apr 30, 2021
  27. 2/5 fast-export: rename --signed-tags='warn' to 'warn-verbatim'Luke Shumaker, Apr 30, 2021
  28. 3/5 git-fast-export.txt: clarify why 'verbatim' may not be a good ideaLuke Shumaker, Apr 30, 2021
  29. 4/5 fast-export: do not modify memory from get_commit_bufferLuke Shumaker, Apr 30, 2021
  30. Junio C HamanoMay 3, 2021
  31. 5/5 fast-export, fast-import: add support for signed-commitsLuke Shumaker, Apr 30, 2021
  32. Junio C HamanoMay 3, 2021
  33. 0/6 fast-export, fast-import: add support for signed-commitsChristian Couder, Feb 24, 2025
  34. 1/6 git-fast-import.adoc: add missing LF in the BNFChristian Couder, Feb 24, 2025
  35. 2/6 fast-export: fix missing whitespace after switchChristian Couder, Feb 24, 2025
  36. 3/6 fast-export: rename --signed-tags='warn' to 'warn-verbatim'Christian Couder, Feb 24, 2025
  37. 4/6 git-fast-export.txt: clarify why 'verbatim' may not be a good ideaChristian Couder, Feb 24, 2025
  38. Elijah NewrenFeb 24, 2025
  39. Christian CouderMar 10, 2025
  40. 5/6 fast-export: do not modify memory from get_commit_bufferChristian Couder, Feb 24, 2025
  41. 6/6 fast-export, fast-import: add support for signed-commitsChristian Couder, Feb 24, 2025
  42. Elijah NewrenFeb 25, 2025
  43. Junio C HamanoFeb 25, 2025
  44. Christian CouderMar 10, 2025
  45. Junio C HamanoFeb 24, 2025
  46. Elijah NewrenFeb 25, 2025
  47. Patrick SteinhardtFeb 25, 2025
  48. Elijah NewrenFeb 25, 2025
  49. Junio C HamanoFeb 25, 2025
  50. Christian CouderMar 10, 2025
  51. Phillip WoodFeb 25, 2025
  52. Christian CouderMar 10, 2025
  53. 0/6 fast-export, fast-import: add support for signed-commitsChristian Couder, Mar 10, 2025
  54. 1/6 git-fast-import.adoc: add missing LF in the BNFChristian Couder, Mar 10, 2025
  55. 2/6 fast-export: fix missing whitespace after switchChristian Couder, Mar 10, 2025
  56. 3/6 fast-export: rename --signed-tags='warn' to 'warn-verbatim'Christian Couder, Mar 10, 2025
  57. 4/6 git-fast-export.adoc: clarify why 'verbatim' may not be a good ideaChristian Couder, Mar 10, 2025
  58. 5/6 fast-export: do not modify memory from get_commit_bufferChristian Couder, Mar 10, 2025
  59. 6/6 fast-export, fast-import: add support for signed-commitsChristian Couder, Mar 10, 2025
  60. Elijah NewrenMar 10, 2025

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