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Re: [PATCH 0/3] interpret-trailers: add --where, --if-exists, --if-missing




On 12/07/2017 16:47, Christian Couder wrote:
> On Wed, Jul 12, 2017 at 3:46 PM, Paolo Bonzini <bonzini@xxxxxxx> wrote:
>>
>> These options are useful to experiment with "git interpret-trailers"
>> without having to tinker with .gitconfig.  It can also be useful in the
>> oddball case where you want a different placement for the trailer.
>>
>> The case that stimulated the creation of the patches was configuring
>>
>>      trailer.signed-off-by.where = end
>>
>> and then wanting "--where before" when a patch author forgets his
>> Signed-off-by and provides it in a separate email.
> 
> Maybe you could have used the following to temporarily override the config:
> 
> git -c trailer.signed-off-by.where=before interpret-trailers ...
> 
> But it could be helpful and more straightforward to provide the
> options you implemented.

That works indeed---and I have now learnt that $GIT_CONFIG_PARAMETERS
makes "git -c" work across my thick layers of aliases!  The main
disadvantage is that it is harder to discover than a command-line option.

Also, I have scripts which pass the --trailer argument is passed
unmodified to "git interpret-trailers", and the command-line argument
avoids the need to parse the trailer to figure out the -c option.  In
particular, in my case the separator is always ":", but in general that
may not be the case.

> I am not sure also if --where should override both "trailer.where" and
> "trailer.<token>.where", or if should just override the former.

I think it should override both, otherwise you have different behavior
depending on whether trailer.<token>.where is defined or not.

Paolo