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List:       kde-panel-devel
Subject:    Re: Git policy for kde-baseapps?
From:       Dawit A <adawit () kde ! org>
Date:       2012-09-26 17:35:36
Message-ID: CALa28R7TLbpm3koMEKmjJJnA+bWryTn=Znjs1j48pmvi5-qNjQ () mail ! gmail ! com
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On Wed, Sep 26, 2012 at 11:17 AM, Frank Reininghaus <
frank78ac@googlemail.com> wrote:

> Hi Dawit,
>
> 2012/9/26 Dawit A:
> > I still do not see how this can work cleanly. People commit changes in
> > master and then backport them to the 4.9 branch. Which BTW was by far the
> > most common workflow before the switch over to git. As an example if you
> > attempt to 'merge'  kde-baseapps 4.9 branch into master right now, you
> will
> > get a duplicate log entry for the following commit which has been
> > cherry-picked into the 4.9 branch from master:
> >
> > commit 8c4fa6e03b6b6acedf3a03eef5347f38680818fe
> > Author: Emmanuel Pescosta <emmanuelpescosta099@gmail.com>
> > Date:   Wed Sep 12 19:33:28 2012 +0200
> >
> >     Fixes Bug 305783 - dragging a file over a directory #c4
> >          does not expand the dir => Bug discovered: When you drag a
> >          item onto a folder-view-item and then move it away
> >          instantly before the autoactivation event is triggered
> >          (After 750ms), the folder will be opened anyway.
> >
> >     BUG: 305783
> >     REVIEW: 106381
> >     FIXED-IN: 4.9.2
> >     (cherry picked from commit 9ab8bcd6aa3ce5d96ee380d5f22d77c2f0a38881)
>
> I think it has just been overlooked first that this commit is safe
> enough to go into the 4.9 branch. I was the one who encouraged
> Emmanuel to commit that fix to 4.9 as well. If you first fix something
> in master and later decide that it can also be pushed to 4.9, I see no
> other option but to cherry-pick.
>
> > How can that be resolved or do we live with the duplicate log entries ?
>
> I don't know how to avoid a duplicate entry in that case. But given
> the big mess of duplicate entries that we had in the past every time
> someone decided to merge, I think that a single duplicate entry is
> something that we can probably live with.
>

Well, I found an answer to my own question at [1]. Basically, it says doing
a rebase of the branch with the master and merging afterwards will prevent
the duplicate log message:

$ git co -b 4.9 origin/KDE/4.9
$ git co -b master origin/master
$ git rebase master 4.9
$ git co master
$ git merge 4.9

Perhaps people with more intimate knowledge of git than I want to comment
on the validity of above steps ? However, it seems to work just fine when I
tested it against kde-baseapps:

$ git rebase master 4.9
First, rewinding head to replay your work on top of it...
Applying: SVN_SILENT made messages (.desktop file)
Applying: When user requests to open bookmark urls in a new window or tab,
filter the
Applying: Fix crash when receiving Nepomuk info for a recently deleted file.
Applying: Fixed CTRL+Tab not working when using Dolphin's filemanagement
part in Konqueror.
Applying: Do not crash when the apply/ok button is pressed after the
defaults button when site specific policies present
Applying: Fix a Bug in KFileItemModelRolesUpdate::setEnabledPlugins.

$ git br
* 4.9
  master
  work

$ git co master
Switched to branch 'master'

$ git merge 4.9
Updating d06163e..3ee40a3
Fast-forward
 dolphin/src/kitemviews/kfileitemmodelrolesupdater.cpp | 9 ++++++++-
 dolphin/src/kitemviews/kitemlistview.cpp              | 2 ++
 konqueror/settings/kio/kcookiespolicies.cpp           | 1 +
 konqueror/settings/kio/proxy.desktop                  | 1 +
 konqueror/src/konqmainwindow.cpp                      | 9 +++++----
 5 files changed, 17 insertions(+), 5 deletions(-)

$ git log origin/master..
commit 3ee40a3c7063e8053cc87b2e9bd8f3a321e67949
Author: Emmanuel Pescosta <emmanuelpescosta099@gmail.com>
Date:   Wed Sep 26 17:36:51 2012 +0200

    Fix a Bug in KFileItemModelRolesUpdate::setEnabledPlugins.
    Changes were never overtaken because of a wrong comparison.

    FIXED-IN: 4.9.2

commit 2848b923ddeb65c4dcb5b469c4ac6f0e9a204eb9
Author: Dawit Alemayehu <adawit@kde.org>
Date:   Wed Sep 26 10:28:11 2012 -0400

    Do not crash when the apply/ok button is pressed after the defaults
button when site specific policies present

commit e95e336767ba9c4d761fdb9f356dd6d78ad01c16
Author: Dawit Alemayehu <adawit@kde.org>
Date:   Tue Sep 25 03:40:50 2012 -0400

    Fixed CTRL+Tab not working when using Dolphin's filemanagement part in
Konqueror.

    BUG: 302329
    FIXED-IN: 4.9.2
    REVIEW: 106569

commit 38e3b55b480cb586ccc65c7661775185ddca0c22
Author: Frank Reininghaus <frank78ac@googlemail.com>
Date:   Mon Sep 24 22:59:59 2012 +0200

    Fix crash when receiving Nepomuk info for a recently deleted file.

    BUG: 306036
    FIXED-IN: 4.9.2

commit 4fb0e0a9235b88df409a3718e75f606e56039b6f
Author: Dawit Alemayehu <adawit@kde.org>
Date:   Sun Sep 23 02:42:55 2012 -0400

    When user requests to open bookmark urls in a new window or tab, filter
the
    URLs before opening them.

    BUG: 145873
    FIXED-IN: 4.9.2

commit 689108b0f37d9ac6f54261f5b94f623e3e63d448
Author: Script Kiddy <scripty@kde.org>
Date:   Sat Sep 22 17:32:41 2012 +0200


[1]
http://davitenio.wordpress.com/2008/09/27/git-merge-after-git-cherry-pick-avoiding-duplicate-commits/

[Attachment #5 (text/html)]

<br><br><div class="gmail_quote">On Wed, Sep 26, 2012 at 11:17 AM, Frank Reininghaus \
<span dir="ltr">&lt;<a href="mailto:frank78ac@googlemail.com" \
target="_blank">frank78ac@googlemail.com</a>&gt;</span> wrote:<br><blockquote \
class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc \
solid;padding-left:1ex">

Hi Dawit,<br>
<br>
2012/9/26 Dawit A:<br>
<div class="im">&gt; I still do not see how this can work cleanly. People commit \
changes in<br> &gt; master and then backport them to the 4.9 branch. Which BTW was by \
far the<br> &gt; most common workflow before the switch over to git. As an example if \
you<br> &gt; attempt to &#39;merge&#39;   kde-baseapps 4.9 branch into master right \
now, you will<br> &gt; get a duplicate log entry for the following commit which has \
been<br> &gt; cherry-picked into the 4.9 branch from master:<br>
&gt;<br>
&gt; commit 8c4fa6e03b6b6acedf3a03eef5347f38680818fe<br>
&gt; Author: Emmanuel Pescosta &lt;<a \
href="mailto:emmanuelpescosta099@gmail.com">emmanuelpescosta099@gmail.com</a>&gt;<br> \
&gt; Date:    Wed Sep 12 19:33:28 2012 +0200<br> &gt;<br>
&gt;       Fixes Bug 305783 - dragging a file over a directory #c4<br>
&gt;               does not expand the dir =&gt; Bug discovered: When you drag a<br>
&gt;               item onto a folder-view-item and then move it away<br>
&gt;               instantly before the autoactivation event is triggered<br>
&gt;               (After 750ms), the folder will be opened anyway.<br>
&gt;<br>
&gt;       BUG: 305783<br>
&gt;       REVIEW: 106381<br>
&gt;       FIXED-IN: 4.9.2<br>
&gt;       (cherry picked from commit 9ab8bcd6aa3ce5d96ee380d5f22d77c2f0a38881)<br>
<br>
</div>I think it has just been overlooked first that this commit is safe<br>
enough to go into the 4.9 branch. I was the one who encouraged<br>
Emmanuel to commit that fix to 4.9 as well. If you first fix something<br>
in master and later decide that it can also be pushed to 4.9, I see no<br>
other option but to cherry-pick.<br>
<div class="im"><br>
&gt; How can that be resolved or do we live with the duplicate log entries ?<br>
<br>
</div>I don&#39;t know how to avoid a duplicate entry in that case. But given<br>
the big mess of duplicate entries that we had in the past every time<br>
someone decided to merge, I think that a single duplicate entry is<br>
something that we can probably live with.<br></blockquote><div><br></div><div>Well, I \
found an answer to my own question at [1]. Basically, it says doing a rebase of the \
branch with the master and merging afterwards will prevent the duplicate log \
message:</div>

<div><br></div><div>$ git co -b 4.9 origin/KDE/4.9</div><div>$ git co -b master \
origin/master</div><div>$ git rebase master 4.9</div><div>$ git co master</div><div>$ \
git merge 4.9</div><div><br></div><div>Perhaps people with more intimate knowledge of \
git than I want to comment on the validity of above steps ? However, it seems to work \
just fine when I tested it against kde-baseapps:</div>

<div><br></div><div><div>$ git rebase master 4.9</div><div>First, rewinding head to \
replay your work on top of it...</div><div>Applying: SVN_SILENT made messages \
(.desktop file)</div><div>Applying: When user requests to open bookmark urls in a new \
window or tab, filter the</div>

<div>Applying: Fix crash when receiving Nepomuk info for a recently deleted \
file.</div><div>Applying: Fixed CTRL+Tab not working when using Dolphin&#39;s \
filemanagement part in Konqueror.</div><div>Applying: Do not crash when the apply/ok \
button is pressed after the defaults button when site specific policies present</div>

<div>Applying: Fix a Bug in \
KFileItemModelRolesUpdate::setEnabledPlugins.</div><div><br></div><div>$ git \
br</div><div>* 4.9</div><div>   master</div><div>   work</div><div><br></div><div>$ \
git co master</div><div>Switched to branch &#39;master&#39;</div>

</div><div><br></div><div><div>$ git merge 4.9</div><div>Updating \
d06163e..3ee40a3</div><div>Fast-forward</div><div>  \
dolphin/src/kitemviews/kfileitemmodelrolesupdater.cpp | 9 ++++++++-</div><div>  \
dolphin/src/kitemviews/kitemlistview.cpp                     | 2 ++</div>

<div>  konqueror/settings/kio/kcookiespolicies.cpp                | 1 +</div><div>  \
konqueror/settings/kio/proxy.desktop                           | 1 +</div><div>  \
konqueror/src/konqmainwindow.cpp                                 | 9 +++++----</div>

<div>  5 files changed, 17 insertions(+), 5 deletions(-)</div><div><br></div><div>$ \
git log origin/master..</div><div>commit \
3ee40a3c7063e8053cc87b2e9bd8f3a321e67949</div><div>Author: Emmanuel Pescosta &lt;<a \
href="mailto:emmanuelpescosta099@gmail.com">emmanuelpescosta099@gmail.com</a>&gt;</div>


<div>Date:    Wed Sep 26 17:36:51 2012 +0200</div><div><br></div><div>      Fix a Bug \
in KFileItemModelRolesUpdate::setEnabledPlugins.</div><div>      Changes were never \
overtaken because of a wrong comparison.</div><div>       </div>

<div>      FIXED-IN: 4.9.2</div><div><br></div><div>commit \
2848b923ddeb65c4dcb5b469c4ac6f0e9a204eb9</div><div>Author: Dawit Alemayehu &lt;<a \
href="mailto:adawit@kde.org">adawit@kde.org</a>&gt;</div><div>Date:    Wed Sep 26 \
10:28:11 2012 -0400</div>

<div><br></div><div>      Do not crash when the apply/ok button is pressed after the \
defaults button when site specific policies present</div><div><br></div><div>commit \
e95e336767ba9c4d761fdb9f356dd6d78ad01c16</div><div>Author: Dawit Alemayehu &lt;<a \
href="mailto:adawit@kde.org">adawit@kde.org</a>&gt;</div>

<div>Date:    Tue Sep 25 03:40:50 2012 -0400</div><div><br></div><div>      Fixed \
CTRL+Tab not working when using Dolphin&#39;s filemanagement part in \
Konqueror.</div><div>       </div><div>      BUG: 302329</div><div>      FIXED-IN: \
4.9.2</div>

<div>      REVIEW: 106569</div><div><br></div><div>commit \
38e3b55b480cb586ccc65c7661775185ddca0c22</div><div>Author: Frank Reininghaus &lt;<a \
href="mailto:frank78ac@googlemail.com">frank78ac@googlemail.com</a>&gt;</div><div>

Date:    Mon Sep 24 22:59:59 2012 +0200</div><div><br></div><div>      Fix crash when \
receiving Nepomuk info for a recently deleted file.</div><div>       </div><div>      \
BUG: 306036</div><div>      FIXED-IN: 4.9.2</div><div><br> </div>
<div>commit 4fb0e0a9235b88df409a3718e75f606e56039b6f</div><div>Author: Dawit \
Alemayehu &lt;<a href="mailto:adawit@kde.org">adawit@kde.org</a>&gt;</div><div>Date:  \
                Sun Sep 23 02:42:55 2012 -0400</div><div><br></div><div>
      When user requests to open bookmark urls in a new window or tab, filter \
the</div> <div>      URLs before opening them.</div><div>       </div><div>      BUG: \
145873</div><div>      FIXED-IN: 4.9.2</div><div><br></div><div>commit \
689108b0f37d9ac6f54261f5b94f623e3e63d448</div><div>Author: Script Kiddy &lt;<a \
href="mailto:scripty@kde.org">scripty@kde.org</a>&gt;</div>

<div>Date:    Sat Sep 22 17:32:41 2012 \
+0200</div><div><br></div></div><div><br></div><div>[1] <a \
href="http://davitenio.wordpress.com/2008/09/27/git-merge-after-git-cherry-pick-avoidi \
ng-duplicate-commits/">http://davitenio.wordpress.com/2008/09/27/git-merge-after-git-cherry-pick-avoiding-duplicate-commits/</a></div>


</div>



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