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Re: [PATCH 4/6] revert: Allow mixed pick and revert instructions

From
Ramkumar Ramachandra <artagnon@gmail.com>
Date
Aug 13, 2011, 16:07 UTC
Message-ID
<CALkWK0=1cVNrHMvMqrEhFYcdV8FkETk8qT1i1oGUJxsWEH9Zww@mail.gmail.com>
In-Reply-To
<20110811201245.GH2277@elie.gateway.2wire.net>
Hi,
Jonathan Nieder writes:
Show 7 quoted lines
> Ramkumar Ramachandra wrote:
>> Change the way the instruction parser works, allowing arbitrary
>> (action, operand) pairs to be parsed.
>
>        Parse the instruction list in .git/sequencer/todo as a list
>        of (action, operand) pairs, instead of assuming all instructions
>        use the same action.
Fixed.  Thanks :)
Show 19 quoted lines
>> @@ -517,7 +517,8 @@ static int do_pick_commit(struct commit *commit, struct replay_opts *opts)
>>               /* TRANSLATORS: The first %s will be "revert" or
>>                  "cherry-pick", the second %s a SHA1 */
>>               return error(_("%s: cannot parse parent commit %s"),
>> -                     action_name(opts), sha1_to_hex(parent->object.sha1));
>> +                     action == REPLAY_REVERT ? "revert" : "cherry-pick",
>> +                     sha1_to_hex(parent->object.sha1));
>
> My first thought was "why stop using the helper function action_name"?
> But now I see that it previously came from "opts" (i.e., the command
> line) and now comes from the todo file.
>
> The command name there was never really important except when
> cherry-pick or revert is being called by a script, and the message
> indicates which command was having trouble parsing the commit.  If I
> am using "git cherry-pick --continue" to continue after a failed
> revert, I suspect action_name(opts) ["cherry-pick: "] would actually be
> more sensible than the command name corresponding to the particular
> pick/revert line.
You're right.  Removed this hunk.
Show 8 quoted lines
> Maybe something like
>
>        len = strchrnul(p, '\n') - p;
>        if (len > 255)
>                len = 255;
>        return error(_("Unrecognized action: %.*s"), (int) len, p);
>
> would do.

Excellent idea! I fixed the buffer overflow message to do this too. By the way, shouldn't error() do this?

Show 6 quoted lines
> Could we can make this error message more clearly suggest that it's
> giving context to the error above it?  For example, something vaguely
> like
>
>        error: unrecognized action: reset c78a78c9 Going back
>        error: on line 7
Good suggestion.  Fixed.
> Does a "cherry-pick --continue" in this scenario skip the first commit
> in the todo list?  Should it?

It shouldn't and it doesn't. See how read_populate_opts and read_populate_todo are called before the segment that drops the first commit.

-- Ram
Previous: Jonathan NiederNext: Ramkumar Ramachandra
Message 12 of 31 in “Towards a generalized sequencer”
  1. 0/6 Towards a generalized sequencerRamkumar Ramachandra, Aug 11, 2011
  2. 1/6 revert: Don't remove the sequencer state on errorRamkumar Ramachandra, Aug 11, 2011
  3. Jonathan NiederAug 11, 2011
  4. Ramkumar RamachandraAug 13, 2011
  5. 2/6 revert: Free memory after get_message callRamkumar Ramachandra, Aug 11, 2011
  6. Jonathan NiederAug 11, 2011
  7. Ramkumar RamachandraAug 12, 2011
  8. 3/6 revert: Parse instruction sheet more cautiouslyRamkumar Ramachandra, Aug 11, 2011
  9. Jonathan NiederAug 11, 2011
  10. 4/6 revert: Allow mixed pick and revert instructionsRamkumar Ramachandra, Aug 11, 2011
  11. Jonathan NiederAug 11, 2011
  12. Ramkumar RamachandraAug 13, 2011
  13. 5/6 sequencer: Expose API to cherry-picking machineryRamkumar Ramachandra, Aug 11, 2011
  14. Jonathan NiederAug 11, 2011
  15. Jonathan NiederAug 11, 2011
  16. Junio C HamanoAug 11, 2011
  17. Ramkumar RamachandraAug 13, 2011
  18. Daniel BarkalowAug 13, 2011
  19. Ramkumar RamachandraAug 13, 2011
  20. Reusing changes after renaming a file (Re: [PATCH 5/6] sequencer: Expose API to cherry-picking machinery)Jonathan Nieder, Aug 13, 2011
  21. Ramkumar RamachandraAug 13, 2011
  22. Jonathan NiederAug 13, 2011
  23. Jonathan NiederAug 13, 2011
  24. Ramkumar RamachandraAug 13, 2011
  25. 6/6 sequencer: Remove sequencer state after final commitRamkumar Ramachandra, Aug 11, 2011
  26. Jonathan NiederAug 11, 2011
  27. Ramkumar RamachandraAug 12, 2011
  28. Jonathan NiederAug 11, 2011
  29. Ramkumar RamachandraAug 12, 2011
  30. Jonathan NiederAug 12, 2011
  31. Ramkumar RamachandraAug 12, 2011

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