Re: [Qemu-devel] [Qemu-ppc] [PATCH v7 3/8] scripts: Submit changes while updating linux headers

[Laurent Vivier <lvivier@redhat.com>]

On 28/08/2015 14:30, Gavin Shan wrote:
> On Fri, Aug 28, 2015 at 01:50:47PM +0200, Laurent Vivier wrote:
>> On 28/08/2015 09:15, Gavin Shan wrote:
>>> This submits changes with formatted commit log while updating Linux
>>> headers using scripts/update-linux-headers.sh.
>>>
>>> Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
>>> ---
>>>  scripts/update-linux-headers.sh | 24 ++++++++++++++++++++++++
>>>  1 file changed, 24 insertions(+)
>>>
>>> diff --git a/scripts/update-linux-headers.sh b/scripts/update-linux-headers.sh
>>> index 18daabe..1be02b8 100755
>>> --- a/scripts/update-linux-headers.sh
>>> +++ b/scripts/update-linux-headers.sh
>>> @@ -63,6 +63,28 @@ cp_virtio() {
>>>      fi
>>>  }
>>>  
>>> +submit_change() {
>>> +    from=$1
>>> +    to=$2
>>> +    if ! [ -e $to/include/qemu-common.h ]; then
>>> +        echo "$to not QEMU source directory, skip submitting changes"
>>> +        exit 3
>>> +    fi
>>> +
>>> +    version=$(make -C $from -s kernelversion)
>>> +    commit=$(cd $from && git log --oneline -1 | cut -d " " -f 1)
>>
>> it's a detail, but you can use directly: git log --format="%h" -1
>>
> 
> Yeah, I don't need another "cut" here with powerful "git log --format".
> Will adjust in next revision. By the way, it seems one message suggested
> by Peter is still missed, I'll add it:
> 
> This commit was created automatically by update-linux-headers.sh.
> 
>>> +    subject="Synchronize Linux headers from kernel $version"
>>> +    message="Synchronize the Linux headers from kernel version $version"
>>> +    message=$(echo "$message\n(commit $commit)")
>>> +    res=$(cd $to && git commit -qa -m "$subject" -m "$message" -s && echo $?)
>>> +    if [ "$res" = "0" ]; then
>>
>> another detail, but you should be able to do something like:
>>
>>       if git commit -C $to -qa -m "$subject" -m "$message" -s ; then
>>
> 
> I didn't figure out the option to switch to target directory from the
> manpage. would you mind telling the option?

in fact, it is "git -C $to commit ....".

> 
>>> +        echo "Changes submitted successfully"
>>> +    else
>>> +        echo "Error $res submitting changes"
>>> +        exit 4
>>> +    fi
>>> +}
>>> +
>>>  # This will pick up non-directories too (eg "Kconfig") but we will
>>>  # ignore them in the next loop.
>>>  ARCHLIST=$(cd "$linux/arch" && echo *)
>>> @@ -132,3 +154,5 @@ cat <<EOF >$output/include/standard-headers/linux/if_ether.h
>>>  EOF
>>>  
>>>  rm -rf "$tmpdir"
>>> +
>>> +submit_change "$linux" "$output"
>>>
> 
> Thanks,
> Gavin
>  
>