Re: [Qemu-devel] [PATCH ] [trivial] qapi: Build-depend on all json files

[Eric Blake]

On 02/04/2016 07:55 AM, Peter Maydell wrote:
> On 4 February 2016 at 14:39, Lluís Vilanova <address@hidden> wrote:
>> Dynamically detects the files used to generate QAPI code, thus ensuring
>> it's never out of sync with the sources.
>>
>> Signed-off-by: Lluís Vilanova <address@hidden>
>> ---
>>  Makefile |    6 ++----
>>  1 file changed, 2 insertions(+), 4 deletions(-)
>>
>> diff --git a/Makefile b/Makefile
>> index d0de2d4..627f772 100644
>> --- a/Makefile
>> +++ b/Makefile
>> @@ -269,10 +269,8 @@ $(SRC_PATH)/qga/qapi-schema.json 
>> $(SRC_PATH)/scripts/qapi-commands.py $(qapi-py)
>>                 $(gen-out-type) -o qga/qapi-generated -p "qga-" $<, \
>>                 "  GEN   $@")
>>
>> -qapi-modules = $(SRC_PATH)/qapi-schema.json $(SRC_PATH)/qapi/common.json \
>> -               $(SRC_PATH)/qapi/block.json $(SRC_PATH)/qapi/block-core.json 
>> \
>> -               $(SRC_PATH)/qapi/event.json $(SRC_PATH)/qapi/introspect.json 
>> \
>> -               $(SRC_PATH)/qapi/crypto.json
>> +qapi-modules = $(SRC_PATH)/qapi-schema.json
>> +qapi-modules += $(shell find $(SRC_PATH)/qapi -name "*.json")
> 
> All the .json files are in the same directory, so I don't think we should
> need to use find here. Does
> 
> qapi-modules += $(wildcard $(SRC_PATH)/qapi/*.json))
> 
> work ?

Does this wildcard affect what goes into a tarball? I'm worried that we
may run the risk of a stale .json file on one developer's machine
causing an unreproducible build on other machines where the file is not
found; explicit lists tend to be safer than wildcards.

I won't reject the patch if others like it, but I won't approve it myself.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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