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Re: [RFC PATCH 1/1] hideTimezone: add a user.hideTimezone config

From
SLShengfa Lin <shengfa@google.com>
Date
Oct 2, 2020, 21:17 UTC
Message-ID
<20201002211719.68606-1-shengfa@google.com>
In-Reply-To
<20201001024452.GA2930867@google.com>
Jonathan Nieder <jrnieder@gmail.com> writes:
Show 9 quoted lines
> Like Junio mentioned, this affects "git commit" but not other commands
> that record the current date with the local timezone.
> 
> The fundamental tool to exercise that machinery is
> 
> 	$ git var GIT_AUTHOR_IDENT
> 	Jonathan Nieder <jrnieder@gmail.com> 1601517809 -0700
> 
> so I suppose I'd be interested in seeing that exercised in tests.
Next patch should include a test for git var.
Show 9 quoted lines
> [...]
> 
> The unfortunate thing about these APIs is that there's no way to pass
> in a timezone from a string instead of from the environment.  This
> means that passing through the environment as above is the only
> reasonable way to do it, but that would have the unfortunate result
> of changing the output of commands like "git log --date=local" that
> are about writing dates to the terminal instead of storing them.
> 
The TZ should apply for write but not read.
Show 16 quoted lines
> [...]
> Looking over callers, who would this affect?  There are three callers:
> 
>  fast-import.c::parse_ident:
> 	Used to handle ident string "now".  That seems in keeping with
> 	the intent here, and fast-import does respect some other
> 	configuration though only affecting storage.  Seems fine.sensible.
> 
>  ident.c::ident_default_date:
> 	Used to produce author and committer timestamps and timestamps for
> 	reflog entries.  That's the goal; good.
> 
>  send-pack.c::generate_push_cert:
> 	Used for the timestamp sent to the server in a signed push
> 	certificate.  Also good.
> 

Thanks for the analysis here. I was wondering whether the TZ should affect these callers.

Show 10 quoted lines
> So I think this does the right thing, plus it retains the
> user-friendly feature of being able to *display* timestamps in their
> local timezone.
> 
> Now let's talk through the downsides:
> 
> It's complex.  The performance isn't likely to be bad when
> user.timezone is not set, which is nice, but it still is messier than
> I'd like to see.
> 
+1.
Previous: Jonathan NiederNext: Junio C Hamano
Message 25 of 47 in “[ISSUE] Stop accessing, storing, and sharing the user's time zone”
  1. Nathaniel ManistaDec 5, 2019
  2. Junio C HamanoDec 5, 2019
  3. Randall S. BeckerDec 5, 2019
  4. Junio C HamanoDec 5, 2019
  5. Randall S. BeckerDec 5, 2019
  6. Santiago Torres AriasDec 5, 2019
  7. 0/1 adding user.hideTimezone for setting UTC timezoneShengfa Lin, Sep 30, 2020
  8. 1/1 hideTimezone: add a user.hideTimezone configShengfa Lin, Sep 30, 2020
  9. Junio C HamanoSep 30, 2020
  10. Junio C HamanoOct 1, 2020
  11. Shengfa LinOct 2, 2020
  12. Junio C HamanoOct 1, 2020
  13. Junio C HamanoOct 1, 2020
  14. Shengfa LinOct 2, 2020
  15. Shengfa LinOct 2, 2020
  16. Shengfa LinOct 2, 2020
  17. Shengfa LinOct 2, 2020
  18. Jonathan NiederOct 2, 2020
  19. Shengfa LinOct 2, 2020
  20. Junio C HamanoOct 3, 2020
  21. Junio C HamanoSep 30, 2020
  22. Shengfa LinOct 2, 2020
  23. Junio C HamanoOct 1, 2020
  24. Jonathan NiederOct 1, 2020
  25. Shengfa LinOct 2, 2020
  26. Junio C HamanoSep 30, 2020
  27. Junio C HamanoOct 1, 2020
  28. Jonathan NiederOct 1, 2020
  29. Junio C HamanoOct 1, 2020
  30. Junio C HamanoOct 8, 2020
  31. Shengfa LinOct 2, 2020
  32. Junio C HamanoOct 2, 2020
  33. Shengfa LinOct 3, 2020
  34. Junio C HamanoOct 3, 2020
  35. brian m. carlsonOct 3, 2020
  36. Junio C HamanoOct 3, 2020
  37. Shengfa LinOct 2, 2020
  38. Shengfa LinOct 2, 2020
  39. 0/2 experiment with commit option record-time-zoneShengfa Lin, Oct 13, 2020
  40. 2/2 Demonstrate failing and passing testsShengfa Lin, Oct 13, 2020
  41. 1/2 Adding a record-time-zone command option for commitShengfa Lin, Oct 13, 2020
  42. Junio C HamanoOct 13, 2020
  43. Shengfa LinOct 21, 2020
  44. Junio C HamanoOct 21, 2020
  45. Junio C HamanoOct 22, 2020
  46. Shengfa LinOct 26, 2020
  47. Junio C HamanoOct 9, 2020

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