Committing only specific hunks in VC

Committing only specific hunks in VC

[Deniz Dogan]

I have a bunch of files that have been modified and I'd like to commit
all of these changes except for one hunk in one of the files.

How would I do this from Emacs? I've heard that it's possible to stage
only specific hunks in magit, but I'm using Mercurial.

-- 
Deniz Dogan

Re: Committing only specific hunks in VC

[Stefan Monnier]

> I have a bunch of files that have been modified and I'd like to commit
> all of these changes except for one hunk in one of the files.
> How would I do this from Emacs?

For many years, I've had a local patch to do that in VC, but I recently
threw it out, deciding that it deserves to be rewritten based on the
"new" tools available currently, i.e. stash/shelve.

> I've heard that it's possible to stage
> only specific hunks in magit, but I'm using Mercurial.

I haven't used Mercurial enough, but I'd do a "hg shelve" (or "hg
stash" or whatever it's called and if hg doesn't have such
a functionality, I'd do it by hand: "hg diff >shelve1.diff");
Then I'd use C-x v, diff-mode and friends to add/remove changes to get
just the changes I want to commit;
Then "hg commit";
Then "hg unshelve" or "hg unstash" or "patch -p0 <shelve1.diff";
And resolve the potential conflicts, if any.


        Stefan

Re: Committing only specific hunks in VC

[suvayu ali]

On Mon, Jan 10, 2011 at 9:40 PM, Deniz Dogan <deniz.a.m.dogan@gmail.com> wrote:
> I have a bunch of files that have been modified and I'd like to commit
> all of these changes except for one hunk in one of the files.
>
> How would I do this from Emacs? I've heard that it's possible to stage
> only specific hunks in magit, but I'm using Mercurial.

I don't know of a way to do it from Emacs, but with git its trivial to
interactively add the hunks (git add -i file or git add -p file) from
the terminal and then commit from the
terminal or from emacs using vc-dir. Does mercurial has similar
interactive adding facilities?

-- 
Suvayu

Open source is the future. It sets us free.

Re: Committing only specific hunks in VC

[Alberto Luaces]

suvayu ali writes:

> On Mon, Jan 10, 2011 at 9:40 PM, Deniz Dogan <deniz.a.m.dogan@gmail.com> wrote:
>> I have a bunch of files that have been modified and I'd like to commit
>> all of these changes except for one hunk in one of the files.
>>
>> How would I do this from Emacs? I've heard that it's possible to stage
>> only specific hunks in magit, but I'm using Mercurial.
>
> I don't know of a way to do it from Emacs, but with git its trivial to
> interactively add the hunks (git add -i file or git add -p file) from
> the terminal and then commit from the
> terminal or from emacs using vc-dir. Does mercurial has similar
> interactive adding facilities?

I think that currently there's no option for doing it from VC. You can
do it from the command line with "hg record". This requires to have the
"record" extension enabled.

-- 
Alberto

Re: Committing only specific hunks in VC

[Deniz Dogan]

2011/1/12 Alberto Luaces <aluaces@udc.es>:
> suvayu ali writes:
>
>> On Mon, Jan 10, 2011 at 9:40 PM, Deniz Dogan <deniz.a.m.dogan@gmail.com> wrote:
>>> I have a bunch of files that have been modified and I'd like to commit
>>> all of these changes except for one hunk in one of the files.
>>>
>>> How would I do this from Emacs? I've heard that it's possible to stage
>>> only specific hunks in magit, but I'm using Mercurial.
>>
>> I don't know of a way to do it from Emacs, but with git its trivial to
>> interactively add the hunks (git add -i file or git add -p file) from
>> the terminal and then commit from the
>> terminal or from emacs using vc-dir. Does mercurial has similar
>> interactive adding facilities?
>
> I think that currently there's no option for doing it from VC. You can
> do it from the command line with "hg record". This requires to have the
> "record" extension enabled.
>

Thanks, Alberto, exactly what I need.

-- 
Deniz Dogan

Re: Committing only specific hunks in VC

[Oleksandr Gavenko]

On 11.01.2011 7:40, Deniz Dogan wrote:
> I have a bunch of files that have been modified and I'd like to commit
> all of these changes except for one hunk in one of the files.
>
> How would I do this from Emacs? I've heard that it's possible to stage
> only specific hunks in magit, but I'm using Mercurial.
>
I usually save common patch in '.diff' like file.

Then in diff-mode can revert patch (C-c C-r), then apply C-c C-a for 
hunks that
don't  like.

After than commit and revert '.diff' again to apply reverted hunks.

This allow don't depend on deep VCS knowledge and available/missing 
features.

Also I practice storing 2 copy of source - working and original/clean.
Applying parts of '.diff' to clean source tree, test, commit and then update
working tree.

Re: Committing only specific hunks in VC

[Colin S. Miller]

Oleksandr Gavenko wrote:
> On 11.01.2011 7:40, Deniz Dogan wrote:
>> I have a bunch of files that have been modified and I'd like to commit
>> all of these changes except for one hunk in one of the files.
>>
>> How would I do this from Emacs? I've heard that it's possible to stage
>> only specific hunks in magit, but I'm using Mercurial.
>>
> I usually save common patch in '.diff' like file.
>

I'd do something similar, when I need to do this in CVS.

I copy the entire tree, and then on the copy use #
M-x cvs-mode and 'd e' to locate the changes I want to remove.

Then I commit from this tree, and afterwards update the original tree.
Patch normally makes a good job of figuring out what to do, unless
one of the non-commited hunks is right beside a commited hunk,
in which case I'd normally delete the original hunk in the conflict and
use 'd e' to decide what parts of the modified hunk to keep.


HTH,
Colin S. Miller
-- 
Replace the obvious in my email address with the first three letters of the hostname to reply.

Re: Committing only specific hunks in VC

[jpkotta]

On Jan 12, 3:06 pm, "Colin S. Miller" <no-spam-
thank-...@csmiller.demon.co.uk> wrote:
> Oleksandr Gavenko wrote:
> > On 11.01.2011 7:40, Deniz Dogan wrote:
> >> I have a bunch of files that have been modified and I'd like to commit
> >> all of these changes except for one hunk in one of the files.
>
> >> How would I do this from Emacs? I've heard that it's possible to stage
> >> only specific hunks in magit, but I'm using Mercurial.
>
> > I usually save common patch in '.diff' like file.
>
> I'd do something similar, when I need to do this in CVS.
>
> I copy the entire tree, and then on the copy use #
> M-x cvs-mode and 'd e' to locate the changes I want to remove.
>
> Then I commit from this tree, and afterwards update the original tree.
> Patch normally makes a good job of figuring out what to do, unless
> one of the non-commited hunks is right beside a commited hunk,
> in which case I'd normally delete the original hunk in the conflict and
> use 'd e' to decide what parts of the modified hunk to keep.
>
> HTH,
> Colin S. Miller
> --
> Replace the obvious in my email address with the first three letters of the hostname to reply.

Sorry this is very late, I stopped reading these lists for a while.

I've been using a tool called commit-patch.  It's supposed to work
with just about any SCM, but I use it with Mercurial.  It comes with
an elisp file to make it work with vc-mode.  The only trouble I have
with it is if you try to edit the patch in a way that should still let
it apply cleanly, it often complains and does nothing (but I've never
had it corrupt a patch).  It always works for me to selectively remove
hunks from the patch.

http://porkrind.org/commit-patch/

Before I used commit-patch, I used the Mercurial extension crecord.