Re: Error: unable to unlink ... when using "git gc"

From: Sitaram Chamarty <sitaramc@gmail.com>
Date: Jan 7, 2009, 10:55 UTC
Message-ID: <slrngm92hr.72d.sitaramc@sitaramc.homelinux.net>
In-Reply-To: <200901070027.21721.bss@iguanasuicide.net>

On 2009-01-07, Boyd Stephen Smith Jr. <bss@iguanasuicide.net> wrote:

> On Tuesday 06 January 2009, Sitaram Chamarty <sitaramc@gmail.com> wrote=20

Show 5 quoted lines

>>    chmod g+ws .git
>>
>>Now set the group to something (I use "gitpushers" ;-)
>>
>>    chgrp -R gitpushers .git

> ISTR this breaking here when someone on the team had a umask like 077 and=20
> was using file:// or ssh:// to push.  I tended up "fixing" things with a=20
> cronjob, (which is a bit of a hack) IIRC.

That doesn't sound right.  "git help init" says:
 - 0xxx: 0xxx is an octal number and each file will have mode 0xxx
 - 0xxx will override users umask(2) value, and thus, users
   with a safe umask (0077) can use this option
 - 0660 is equivalent to group.

So when you say "group", you're saying "0660", and when you say "0660", you're overriding users umask value.

I sorta-kinda tested it (some output of the "find|xargs ls" is snipped for brevity):

    $ mkdir umt;cd umt
    $ umask         
    0022                                 
    $ git init --shared=group
    Initialized empty shared Git repository in /home/sitaram/t/umt/.git/
    (reverse-i-search)`find': sfind f|ack .git|map -x du -sk |sort -n
    $ find . -type d|xargs ls -ald     
    drwxr-xr-x 3 sitaram sitaram 4096 2009-01-07 15:59 .             
    drwxrwsr-x 7 sitaram sitaram 4096 2009-01-07 15:59 ./.git

    $ dummy_commit                   
    Created initial commit afb2645: file-30824 at Wed Jan  7 15:59:23 IST 2009
     1 files changed, 1 insertions(+), 0 deletions(-)
     create mode 100644 file-30824
    $ find . -type d|xargs ls -ald
    drwxr-xr-x 3 sitaram sitaram 4096 2009-01-07 15:59 .
    drwxrwsr-x 9 sitaram sitaram 4096 2009-01-07 15:59 ./.git
    drwxrwsr-x 2 sitaram sitaram 4096 2009-01-07 15:59 ./.git/objects/a7
    drwxrwsr-x 2 sitaram sitaram 4096 2009-01-07 15:59 ./.git/objects/af
    drwxrwsr-x 2 sitaram sitaram 4096 2009-01-07 15:59 ./.git/objects/ca

    $ umask 077
    $ jeeves dummy_commit
    Created commit 232f157: file-3025 at Wed Jan  7 15:59:36 IST 2009
     1 files changed, 1 insertions(+), 0 deletions(-)
     create mode 100644 file-3025
    $ find . -type d|xargs ls -ald
    drwxr-xr-x  3 sitaram sitaram 4096 2009-01-07 15:59 .
    drwxrwsr-x  9 sitaram sitaram 4096 2009-01-07 15:59 ./.git
    drwxrws---  2 sitaram sitaram 4096 2009-01-07 15:59 ./.git/objects/23
    drwxrwsr-x  2 sitaram sitaram 4096 2009-01-07 15:59 ./.git/objects/a7
    drwxrws---  2 sitaram sitaram 4096 2009-01-07 15:59 ./.git/objects/a8
    drwxrwsr-x  2 sitaram sitaram 4096 2009-01-07 15:59 ./.git/objects/af
    drwxrws---  2 sitaram sitaram 4096 2009-01-07 15:59 ./.git/objects/c7
    drwxrwsr-x  2 sitaram sitaram 4096 2009-01-07 15:59 ./.git/objects/ca