[OE-core] [PATCH 1/1] archiver.bbclass: exclude recursive symlink for diff

[Robert Yang]

Hi Valentin,

It hangs up when build acl (which means that I can reproduce the
problem as you have told), but it worked well without this patch,
maybe python version related, I will do more investigation.

// Robert

On 09/03/2013 08:53 PM, Vali Cobelea wrote:
> Hi,
>
> What seems to be the issue ?
>
> BR,
> Valentin
>
>
> On 09/03/2013 03:51 PM, Robert Yang wrote:
>>
>> Please hold this patch for a while, seems that it didn't fix all of the things.
>>
>> // Robert
>>
>> On 09/03/2013 07:51 PM, Robert Yang wrote:
>>> There would be errors if there are recursive symlinks in the ${S}:
>>>
>>> diff:
>>> /xxx/udev/182-r8/udev-182/test/sys/block/loop0/bdi/subsystem/0:16/subsystem:
>>> recursive directory loop
>>>
>>> We can check the recursive symlink and save it to the exclude file, then
>>> the diff's --exclude-from argument can exclude them
>>>
>>> [YOCTO #4986]
>>>
>>> Signed-off-by: Valentin Cobelea <valentin.cobelea at enea.com>
>>> Signed-off-by: Robert Yang <liezhi.yang at windriver.com>
>>> ---
>>>   meta/classes/archiver.bbclass |   18 ++++++++++++++++++
>>>   1 file changed, 18 insertions(+)
>>>
>>> diff --git a/meta/classes/archiver.bbclass b/meta/classes/archiver.bbclass
>>> index 66efe7d..f5ad562 100644
>>> --- a/meta/classes/archiver.bbclass
>>> +++ b/meta/classes/archiver.bbclass
>>> @@ -493,6 +493,24 @@ def create_diff_gz(d):
>>>       for i in exclude_from:
>>>           f.write(i)
>>>           f.write("\n")
>>> +
>>> +    symlinks = []
>>> +    directories = []
>>> +
>>> +    # Add symlink and root dir to the separated lists for checking whether
>>> +    # there is recursive symlink
>>> +    for root, dirs, files in os.walk(os.getcwd(), followlinks=True):
>>> +        if os.path.islink(root):
>>> +            symlinks.append(root)
>>> +        elif os.path.isdir(root):
>>> +            directories.append(root)
>>> +
>>> +    # Check if there is a recursive symlink to a dir
>>> +    for sym in symlinks:
>>> +        if sym in directories:
>>> +            # write the 'sym' in the 'exclude-from' file
>>> +            f.write(os.path.basename(sym))
>>> +
>>>       f.close()
>>>
>>>       s=d.getVar('S', True)
>>>
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>
>
>