On 18/09/19 02:27AM, Denton Liu wrote:
> On Wed, Sep 18, 2019 at 09:02:37AM +0200, Birger Skogeng Pedersen wrote:
> > Hi Pratyush,
> > 
> > 
> > I was comparing your git-gui repo[1] with the source code of
> > git/git-gui[2]. There seems to be a couple of things missing.
> > 
> > For example, I created a patch back in March 2018[3]. Junio pulled it
> > so the changes are really there in git/git-gui/git-gui.sh (see this[4]
> > line). This was while there was no git-gui maintainer. I guess the
> > change never got merged to git-gui, but directly to git.
> > 
> > Not sure what you should to about it, I just wanted to let you know.

This is something I've been aware of, but I have followed the strategy 
of ignoring the problem till someone complains. Well, that someone has 
now complained.

I'm not particularly comfortable with cross-tree/sub-tree merges, so 
I've been dreading doing this for a while. Guess now its time to get my 
hands dirty.

> > 
> > [1] https://github.com/prati0100/git-gui
> > [2] https://github.com/gitster/git/tree/master/git-gui
> > [3] https://public-inbox.org/git/20180302100148.23899-1-birge...@gmail.com/
> > [4] https://github.com/gitster/git/blob/master/git-gui/git-gui.sh#L3885
> > 
> > 
> > Birger
> 
> As an exercise in writing throwaway scripts, I created this monstrosity.
> If you're interested in merging all of the git-gui branches that came
> from mainline back into git-gui's master, perhaps we could do something
> like this:

Ah! Thanks a lot for this. This reduces some of the work I've been 
dreading.

> 
>       #!/bin/sh
> 
>       branches=
>       # note that all instances of "master" refer to git.git's "master"
>       # also, 5ab7227 is the latest commit in Pat's git-gui repo
>       for c in $(git rev-list --children master 5ab7227 | grep ^5ab7227 | cut 
> -d' ' -f2-)
>       do 
>               merge_commit=$(git rev-list $c..master --ancestry-path --merges 
> | tail -n1)
>               branch_name=$(git show -s --format=%s $merge_commit | sed -e 
> "s/Merge branch '\\([^']*\\)' of .*/\\1/")
> 
>               #echo $branch_name: $(git rev-parse $merge_commit^2)
>               git branch -f "$branch_name" $merge_commit^2
>               branches="$branches $branch_name"
>       done
>       # this also assumes git-gui's master is checked out
>       git merge $branches

Assuming I have git.git cloned in ../git (relative to git-gui.git), I 
ran:

  git pull -Xsubtree=git-gui ../git $branches

instead of:

  git merge $branches

because git-gui's tree doesn't have those commits and branches yet, so 
we can't merge straight away. This seems to have worked, but I thought 
I'd mention it in case it would cause some subtle problems.

> This script should resurrect all of the branches that were based on
> 5ab7227 from mainline's master. Then (assuming you have git-gui's
> master checked out), it should do a big octopus merge to bring all of
> the changes in.
> 
> We end up with the following branches being merged:
> 
>       js/msgfmt-on-windows: 492595cfc70f97cd99d4c460db1ba01b73dab932

This branch is already in git-gui (with the exception of one commit. 
More on that below).

>       tz/fsf-address-update: 63100874c1653dd6a137f74143eda322550eabc7
>       jn/reproducible-build: 474642b4a47c74a1f277955d7387d1886546fa01
>       ls/no-double-utf8-author-name: 331450f18a7fd298ddd6b85cc5e8ed9dba09f9da
>       js/misc-git-gui-stuff: 76756d67061076c046973bff2089ad49f5dc2eb6
>       bb/ssh-key-files: 6a47fa0efa342daa53c6386538fda313420351a5
>       bp/bind-kp-enter: 146a6f1097f451c6b6d332916a515b7ce8c07e9a
>       cb/ttk-style: f50d5055bf9bb2aa35e629d31943334afc4a9f10
>       py/call-do-quit-before-exit: 5440eb0ea2651c45a0e46f2335ecbb8d1f42c584
> 
> Then perhaps you could do a request-pull and development could continue
> on your fork?
> 
> Not sure if this is even desirable but here's the script just in case it
> ends up useful. I had fun writing it.

Just to pick your brain: in what case would this not be desirable?
 
> Also note that we end up missing two commits that made changes to
> git-gui/ under mainline git (not directly to the git-gui repo): 
> 
>       * 7560f547e6 (treewide: correct several "up-to-date" to "up to date", 
> 2017-08-23)
>       * 00ddc9d13c (Fix build with core.autocrlf=true, 2017-05-09)

One more commit that is missing: 492595cfc7 (git-gui (MinGW): make use of 
MSys2's msgfmt, 2017-07-25)

This commit is comes from the merge of js/msgfmt-on-windows, which has 
all the commits from the merge 5ab7227 (Merge remote-tracking branch 
'philoakley/dup-gui', 2017-03-18)
in git-gui.

While merging js/msgfmt-on-windows should get this commit into git-gui, 
I'd rather have it separate,

> 
> Hope any of this is useful to anyone,

It is very useful. Thanks :)

-- 
Regards,
Pratyush Yadav

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