threads / discuss / 18197

git-mergetool changes file rights?

Subject: git-mergetool changes file rights?

## tl;dr

3 messages between Mar 7, 2009 and Mar 7, 2009.

replies: 2people: 2as markdown or json

Grzegorz Kossakowski· Mar 7, 2009, 15:55 UTC · lore

Hello,

I've stumbled upon very weird problem: grek@linux-p3yg:~/asf/git/infrastructure/apache-git-mirrors/bin> git --version git version 1.6.1.3 grek@linux-p3yg:~/asf/git/infrastructure/apache-git-mirrors/bin> ls -l razem 40 -rwxr-xr-x 1 grek users 773 mar 7 16:47 create-repo.sh -rwxr-xr-x 1 grek users 3219 mar 7 16:50 email-update.sh -rwxr-xr-x 1 grek users 3219 mar 7 16:50 email-update.sh.orig -rwxr-xr-x 1 grek users 2086 mar 7 16:47 move-svn-project.sh -rwxr-xr-x 1 grek users 1464 mar 7 16:47 update-authors.sh -rwxr-xr-x 1 grek users 156 mar 6 16:16 update-daily.sh -rwxr-xr-x 1 grek users 371 mar 7 16:47 update-every-minute.sh -rwxr-xr-x 1 grek users 215 mar 7 16:47 update-gitweb.sh -rwxr-xr-x 1 grek users 1104 mar 7 16:47 update-repo.sh -rwxr-xr-x 1 grek users 188 mar 7 16:47 update.sh grek@linux-p3yg:~/asf/git/infrastructure/apache-git-mirrors/bin> git mergetool merge tool candidates: kdiff3 kdiff3 tkdiff xxdiff meld gvimdiff opendiff emerge vimdiff Merging the files: email-update.sh

Normal merge conflict for 'email-update.sh':
  {local}: modified
  {remote}: modified
Hit return to start merge resolution tool (kdiff3):
error: open("bin/email-update.sh"): Permission denied
error: unable to index file bin/email-update.sh
fatal: updating files failed
grek@linux-p3yg:~/asf/git/infrastructure/apache-git-mirrors/bin> ls -l
razem 40
-rwxr-xr-x 1 grek users  773 mar  7 16:47 create-repo.sh
---x------ 1 grek users 3219 mar  7 16:53 email-update.sh
-rwxr-xr-x 1 grek users 3219 mar  7 16:53 email-update.sh.orig
-rwxr-xr-x 1 grek users 2086 mar  7 16:47 move-svn-project.sh
-rwxr-xr-x 1 grek users 1464 mar  7 16:47 update-authors.sh
-rwxr-xr-x 1 grek users  156 mar  6 16:16 update-daily.sh
-rwxr-xr-x 1 grek users  371 mar  7 16:47 update-every-minute.sh
-rwxr-xr-x 1 grek users  215 mar  7 16:47 update-gitweb.sh
-rwxr-xr-x 1 grek users 1104 mar  7 16:47 update-repo.sh
-rwxr-xr-x 1 grek users  188 mar  7 16:47 update.sh

Notice rights for email-update.sh.

What's going on here?

-- 
Best regards,
Grzegorz Kossakowski

Charles Bailey· Mar 7, 2009, 19:48 UTC · re: Grzegorz Kossakowski · lore

Re: git-mergetool changes file rights?

On Sat, Mar 07, 2009 at 04:55:38PM +0100, Grzegorz Kossakowski wrote:

Show 11 quoted lines

> grek@linux-p3yg:~/asf/git/infrastructure/apache-git-mirrors/bin> git mergetool
> merge tool candidates: kdiff3 kdiff3 tkdiff xxdiff meld gvimdiff opendiff emerge vimdiff
> Merging the files: email-update.sh
> 
> Normal merge conflict for 'email-update.sh':
>   {local}: modified
>   {remote}: modified
> Hit return to start merge resolution tool (kdiff3):
> error: open("bin/email-update.sh"): Permission denied
> error: unable to index file bin/email-update.sh
> fatal: updating files failed

Looking at this sequence of error messages it looks like mergetool ran kdiff3 and this 'succeeded', but when mergetool came to 'git add' the result of the merge it fell over in a heap because it couldn't read the file because of the strange ---x------ permissions.

mergetool just uses mv to create a backup of the to-be-merged path and then uses cp to recreate the original path before invoking kdiff3. I haven't managed to get cp to do anything other that use the same mode as the source file for a copied file.

What version of kdiff3 are you using? I ask because this fix looks like it may be relevant:

http://kdiff3.svn.sourceforge.net/viewvc/kdiff3/trunk/kdiff3/src-QT4/fileaccess.cpp?r1=84&r2=96

The changelog for 0.9.95 includes this:

- Fixed permissions when writing executable file. (Un*x only)

-- 
Charles Bailey
http://ccgi.hashpling.plus.com/blog/

Grzegorz Kossakowski· Mar 7, 2009, 19:54 UTC · re: Charles Bailey · lore

Re: git-mergetool changes file rights?

Charles Bailey pisze:

Show 31 quoted lines

> On Sat, Mar 07, 2009 at 04:55:38PM +0100, Grzegorz Kossakowski wrote:
>> grek@linux-p3yg:~/asf/git/infrastructure/apache-git-mirrors/bin> git mergetool
>> merge tool candidates: kdiff3 kdiff3 tkdiff xxdiff meld gvimdiff opendiff emerge vimdiff
>> Merging the files: email-update.sh
>>
>> Normal merge conflict for 'email-update.sh':
>>   {local}: modified
>>   {remote}: modified
>> Hit return to start merge resolution tool (kdiff3):
>> error: open("bin/email-update.sh"): Permission denied
>> error: unable to index file bin/email-update.sh
>> fatal: updating files failed
> 
> Looking at this sequence of error messages it looks like mergetool ran
> kdiff3 and this 'succeeded', but when mergetool came to 'git add' the
> result of the merge it fell over in a heap because it couldn't read
> the file because of the strange ---x------ permissions.
> 
> mergetool just uses mv to create a backup of the to-be-merged path and
> then uses cp to recreate the original path before invoking kdiff3. I
> haven't managed to get cp to do anything other that use the same mode
> as the source file for a copied file.
> 
> What version of kdiff3 are you using? I ask because this fix looks
> like it may be relevant:
> 
> http://kdiff3.svn.sourceforge.net/viewvc/kdiff3/trunk/kdiff3/src-QT4/fileaccess.cpp?r1=84&r2=96
> 
> The changelog for 0.9.95 includes this:
> 
> - Fixed permissions when writing executable file. (Un*x only)

Hi Charles,

I didn't thought of blaming kdiff3 which seems to be the real guilty for my problems. I'm using 0.9.94 version but I'm in the process of update.

I'll try that version and report back if it fixes my problem.

Thanks for your help!

-- 
Best regards,
Grzegorz Kossakowski