[PATCH v2] devtools: check for supported git version

[Ferruh Yigit]

On 10/26/2022 7:24 AM, David Marchand wrote:
> On Tue, Oct 25, 2022 at 12:15 PM Ali Alnubani <alialnu at nvidia.com> wrote:
>>
>> The script devtools/parse-flow-support.sh uses the git-grep
>> option (-o, --only-matching), which is only supported from
>> git version 2.19 and onwards.[1]
>>
>> The script now exits early providing a clear message to the user
>> about the required git version instead of showing the following
>> error messages multiple times:
>>    error: unknown switch `o'
>>    usage: git grep [<options>] [-e] <pattern> [<rev>...] [[--] <path>...]
>>    [..]
>>
>> [1] https://github.com/git/git/blob/v2.19.0/Documentation/RelNotes/2.19.0.txt
>>
>> Signed-off-by: Ali Alnubani <alialnu at nvidia.com>
>> Signed-off-by: Thomas Monjalon <thomas at monjalon.net>
> 
> I don't have a "non working" git, but the patch lgtm.
> 
> Acked-by: David Marchand <david.marchand at redhat.com>
> 

+Chaoyong,

He had observed the problem, perhaps he can help to test.