threads / discuss / 1405

cogito: problems in read-only trees

Subject: cogito: problems in read-only trees

## tl;dr

3 messages between Aug 3, 2005 and Aug 4, 2005.

replies: 2people: 3as markdown or json

Wolfgang Denk· Aug 3, 2005, 07:42 UTC · lore

Hello,

sometimes I have to work in trees for which I have only read permissions; cogito has problems then - for example:

-> cg-diff fatal: unable to create new cachefile fatal: unable to create temp-file

It would be nice if there was at least a way to specify some TMPDIR instead of the current directory in such a situation.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
Include the success of others in your dreams for your own success.

Petr Baudis· Aug 4, 2005, 20:11 UTC · re: Wolfgang Denk · lore

git: problems in read-only trees

Dear diary, on Wed, Aug 03, 2005 at 09:42:41AM CEST, I got a letter where Wolfgang Denk <wd@denx.de> told me that...

Show 11 quoted lines

> Hello,
> 
> sometimes I have to  work  in  trees  for  which  I  have  only  read
> permissions; cogito has problems then - for example:
> 
> -> cg-diff 
> fatal: unable to create new cachefile
> fatal: unable to create temp-file
> 
> It would be nice if there was at least a way to specify  some  TMPDIR
> instead of the current directory in such a situation.

This is a bug in git-diff-* (producing the second error message; the first error message means failed git-update-cache --refresh but that isn't fatal). Any reason why prep_temp_blob() works in . instead of $TMPDIR?

-- 
				Petr "Pasky" Baudis
Stuff: http://pasky.or.cz/
If you want the holes in your knowledge showing up try teaching
someone.  -- Alan Cox

Holger Eitzenberger· Aug 4, 2005, 20:38 UTC · re: Petr Baudis · lore

Re: git: problems in read-only trees

Petr Baudis wrote:

Show 6 quoted lines

>>-> cg-diff 
>>fatal: unable to create new cachefile
>>fatal: unable to create temp-file
>>
>>It would be nice if there was at least a way to specify  some  TMPDIR
>>instead of the current directory in such a situation.

> This is a bug in git-diff-* (producing the second error message; the first
> error message means failed git-update-cache --refresh but that isn't
> fatal). Any reason why prep_temp_blob() works in . instead of $TMPDIR?

I do not know about the first message (cachefile), but the 2nd one is trivial to fix. I implemented a function called git_mkstemp() (path.c and so in libgit) which places the tmpfiles in $TMPDIR and if it's not set in /tmp. The is close to what other programs do.

There are other references to mkstemp() in git where one or two of them may use git_mkstemp() instead, but not in sha1_file.c, since it hardlinks it later on.

/holger