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Re: [RFC] svn commit --parents option needed

From: Stefan Sperling <stsp_at_apache.org>
Date: Fri, 17 Nov 2017 14:25:38 +0100

On Tue, Nov 14, 2017 at 03:57:45PM +0000, Sam White wrote:
> Hi Developers,
> I propose the addition of an equivalent to the --parents option to "svn
> commit", to check in the directory structure as well as any files
> specified.
> I understand that with svn add, the --parents option is available. However,
> the use case I have in mind is one that I come across quite often,
> involving changelists and SVN moves.
> If I add files to changelist, I expect to be able to commit any changes to
> them quickly and easily - that's the point, right? But if I perform an SVN
> move on these items, to a directory which is not yet committed, because I
> cannot yet add directories to the changelist, when I go to commit the
> files, I get the error
> svn: E200009: '/some/new/directory/here' is not known to exist in the
> repository and is not part of the commit, yet its child
> '/some/new/directory/here/file_on_changelist.txt' is part of the commit
> If I then try and commit those files, as sort of a "pre-commit" commit,
> then i get the error
> Cannot commit '/some/directory/here' because it was moved from
> '/other/directory/here/' which is not part of the commit; both sides of the
> move must be committed together
> The workaround for this seems to involve a mess of committing these
> directories together, with the option --depth=empty, and then committing
> with the changelist. Alternatively, I could just skip the --depth=empty,
> and let the commit handle the fiels as well - but then, what was the point
> in making a changelist? I still end up formulating some long command!
> I was asking about this in the #svn IRC - here is the chat log:
> http://colabti.org/irclogger/irclogger_log/svn?date=2017-11-14#l21
> Is what I am suggesting clear? I'd appreciate your thoughts.
> Thanks,
> Sam (sixquidsquid)

So to reiterate:

I move a directory which contains some files which belong to a
changelist and some which do not belong to this changelist.

I now want to use commit --cl in order to commit the modifications in
the files listed in my changelist. Because some or all of these files
sit inside the moved directory I have to commit this move as well.

In the repository, the moved directory will be both copied to
the new location and deleted at its old path in this same commit.

And a server-side directory copy is always recursive; there is no
way to exclude any children from the copy unless we're explicitly
marking them deleted in the copy target.
So some files which are not part of my changelist will be moved along.

Is your goal to *only move the files* which are part of your changelist?
I believe this could not be made to work without lots of headache.

Or is your goal to perform the directory move recursively, and in the
same revision commit modifications to only those files which are part
of the changelist? I believe this can be made to work.

I'll note that the current behaviour in the case where a changelist
contains a file which has been moved directly, rather than having
been moved along with a parent directory, supports your feature
request because this case already "just works":

$ svn cl my-file alpha
A [my-file] alpha
$ echo foo >> alpha
$ svn mv alpha alpha2
A alpha2
D alpha
$ svn st

--- Changelist 'my-file':
D alpha
> moved to alpha2
A + alpha2
> moved from alpha
$ svn ci alpha2
$ svn ci --cl my-file -m "edit and move alpha"
Deleting alpha
Adding alpha2
Transmitting file data .done
Committing transaction...
Committed revision 3.
Received on 2017-11-17 14:26:12 CET

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