[U-Boot] [PATCH] patman: check git format.subjectprefix setting when generate patches prefix

[Josh Wu <josh.wu@atmel.com>]

Hi, Simon

On 4/11/2015 1:51 AM, Simon Glass wrote:
> Hi Josh,
>
> On 7 April 2015 at 23:13, Josh Wu <josh.wu@atmel.com> wrote:
>> For the local project, we may specified format.subjectprefix setting.
>> Then the patch will be formated as [Project_prefix][PATCH].
>> But patman will not check this setting. It will remove the
>> format.subjectprefix.
>>
>> So This patch will let patman check this setting and add it as a
>> project prefix.
>>
>> Signed-off-by: Josh Wu <josh.wu@atmel.com>
>> ---
>>
>>   tools/patman/gitutil.py | 11 +++++++++++
>>   tools/patman/series.py  |  8 +++++++-
>>   2 files changed, 18 insertions(+), 1 deletion(-)
>>
>> diff --git a/tools/patman/gitutil.py b/tools/patman/gitutil.py
>> index 4c2c35b..9e739d8 100644
>> --- a/tools/patman/gitutil.py
>> +++ b/tools/patman/gitutil.py
>> @@ -545,6 +545,17 @@ def GetDefaultUserEmail():
>>       uemail = command.OutputOneLine('git', 'config', '--global', 'user.email')
>>       return uemail
>>
>> +def GetDefaultSubjectPrefix():
>> +    """Gets the format.subjectprefix from local .git/config file.
>> +
>> +    Returns:
>> +        Subject prefix found in local .git/config file, or None if none
>> +    """
>> +    sub_prefix = command.OutputOneLine('git', 'config', 'format.subjectprefix',
>> +                 raise_on_error=False)
>> +
>> +    return sub_prefix
>> +
>>   def Setup():
>>       """Set up git utils, by reading the alias files."""
>>       # Check for a git alias file also
>> diff --git a/tools/patman/series.py b/tools/patman/series.py
>> index 60ebc76..a17a7d1 100644
>> --- a/tools/patman/series.py
>> +++ b/tools/patman/series.py
>> @@ -254,6 +254,12 @@ class Series(dict):
>>           Return:
>>               Patch string, like 'RFC PATCH v5' or just 'PATCH'
>>           """
>> +        git_prefix = gitutil.GetDefaultSubjectPrefix()
>> +        if git_prefix:
>> +           git_prefix = '%s][' % git_prefix
>> +        else:
>> +            git_prefix = ''
>> +
>>           version = ''
>>           if self.get('version'):
>>               version = ' v%s' % self['version']
>> @@ -262,4 +268,4 @@ class Series(dict):
>>           prefix = ''
>>           if self.get('prefix'):
>>               prefix = '%s ' % self['prefix']
>> -        return '%sPATCH%s' % (prefix, version)
>> +        return '%s%sPATCH%s' % (git_prefix, prefix, version)
>> --
>> 1.9.1
> The patch looks good, but I'm not quite sure how to use it. Can you
> please add instructions to the patman README?

The user case is like when we are working on multiple projects, some are 
for mainline, some are for internal project.
We need add a patch prefix to indicate the patch is for internal project.

For the readme file, how about add this after Series-prefix like:

----------------8<--------------------
  Series-prefix: prefix
         Sets the subject prefix. Normally empty but it can be RFC for
-       RFC patches, or RESEND if you are being ignored.
+       RFC patches, or RESEND if you are being ignored. The patch subject
+       is like [RFC PATCH] or [RESEND PATCH].
+       In the meantime, git format.subjectprefix option will be added as
+       well. If your format.subjectprefix is set to InternalProject, then
+       the patch shows like: [InternalProject][RFC/RESEND PATCH]
---------------->8--------------------

>
> I tried:
>
> git config format.subjectprefix U-Boot
> patman -nmt
>
> Then I get a patch with:
>
> Subject: [U-Boot][PATCH] patman: check git format.subjectprefix
> setting when generate patches prefix
>
> I'm not sure how to get a space between [U-Boot] and [Patch]. Any ideas?
I tried some, but same fail to add a space between [U-Boot] and [Patch], 
I don't think we need that space.

Best Regards,
Josh Wu

>
> Regards,
> Simon