Thanks Feng,

That was my expectation, but I just wondered if there is any option that I 
can give to protoc to add a prefix to the canonical names.

On Friday, August 11, 2017 at 1:53:54 PM UTC-7, Feng Xiao wrote:
>
>
>
> On Fri, Aug 11, 2017 at 1:41 PM, 'Jungho Ahn' via Protocol Buffers <
> prot...@googlegroups.com <javascript:>> wrote:
>
>> Hello,
>>
>> I'm trying to import protos from a third party repo, but they don't have 
>> proper canonical names.
>>
>> For example, there is a repo X which has
>>
>> a/p1.proto
>> a/p2.proto with (import "a/p1.proto")
>>
>>
>> Since 'a' is too generic, I'd like to add a kind of prefix to the 
>> canonical names like "external/a/p1.proto", "external/a/p2.proto" to avoid 
>> conflicts with existing protos.
>> But I'm not sure whether this possible since a/p2.proto imports p1.proto 
>> as "a/p1.proto" already.
>>
>> Is there any workaround for this?
>>
> Unfortunately there isn't a workaround here. Basically "a/p1.proto" 
> becomes the canonical name of that proto file and it can't be changed 
> unless you can update all references of that import path. If repo X only 
> provides the .proto files but not the generated code in their library, you 
> can just update all the import paths in their protos. However, if generated 
> code is part of X library, there isn't much you can do other than asking 
> owners of X library to use a better path for their protos. 
>  
>
>>
>> Thanks,
>>
>>
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>

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