bug#57807: 29.0.50; Make vc-print-branch-log able to log multiple branches

[Sean Whitton]

Hello,

On Thu 15 Sep 2022 at 09:59AM +03, Juri Linkov wrote:

>>> Is this equivalent to `M-& git log origin/scratch/posix-spawn 4b2ca6bfc0`,
>>> then enabling vc-git-log-view-mode in the output buffer?
>>
>> It's not, because vc-git-log-view-mode requires you pass four or five
>> options to git-log to get output it can properly display.  That
>> knowledge is locked up in vc-git.el right now.
>
> This part is clear, but I also wanted to know what git command
> corresponds to this feature.  Is it just `git log` with two
> branch names on the command line?  What additional options
> are required?  Maybe `--graph --oneline`?  Also I see that
> git documentation mentions `--branches[=<pattern>]`.

It's something along these lines:

git log -100 --graph --decorate --date=short \
    --pretty="tformat:%d%h..: %an %ad %s" --abbrev-commit \
    BRANCH1 BRANCH2

-- 
Sean Whitton