Mike Rappazzo <rappa...@gmail.com> writes:
> On Mon, Jun 8, 2015 at 11:28 AM, Junio C Hamano <gits...@pobox.com> wrote:
>
>> This is optional, but I still wonder why the command line cannot be
>> more like this, though:
>>
>> format=$(git config --get rebase.insnFormat)
>> git log --format="%H ${format-%s}" --reverse --right-only
>> --topo-order \
>> $revisions ${restrict_revision+^$restrict_revision} |
>> while read -r sha1 junk
>> do
>> ...
>>
>> That way we can optimize one "sed" process away.
>>
>> If this is a good idea, it needs to be a separate follow-up patch
>> that changes "%m filtered by sed" to "use --right-only". I do not
>> think such a change breaks anything, but I do not deal with complex
>> histories myself, so...
>
> As far as I can tell, the rev-list will return multiple lines when not
> using 'oneline'. The 'sed -n' will join the lines back together.
There is no joining going on.
To "rev-list", a custom --pretty/--format is a signal to trigger its
"verbose" mode, and it shows a "commit <object-name>" line and then
the line in the format specified, e.g.
$ git rev-list --pretty='%m%H %<(35,trunc)%s' --right-only --reverse ...2024d3
commit 1e9676ec0a771de06abca3009eb4bdc5a4ae3312
>1e9676ec0a771de06abca3009eb4bdc5a4ae3312 lockfile: replace random() by ran..
commit 2024d3176536fd437b4c0a744161e96bc150a24e
>2024d3176536fd437b4c0a744161e96bc150a24e help.c: wrap wait-only poll() inv..
...
Because of that, "format=%m | sed -n s/>//p" would be one way to
make sure that all lines we care about are prefixed by '>' so that
we can pick them while discarding anything else. So you do need
filtering unless switch to "log", even if you used --right-only.
That is why I didn't use "rev-list" in the message you are
responding to.
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