Re: Review Request 66649: Added pb2gen.sh for generating python protobuf bindings.

[Mesos Reviewbot <re...@mesos.apache.org>]

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Patch looks great!

Reviews applied: [66649]

Passed command: export OS='ubuntu:14.04' BUILDTOOL='autotools' COMPILER='gcc' CONFIGURATION='--verbose --disable-libtool-wrappers --disable-parallel-test-execution' ENVIRONMENT='GLOG_v=1 MESOS_VERBOSE=1'; ./support/docker-build.sh

- Mesos Reviewbot


On Dec. 6, 2018, 4:26 a.m., Eric Chung wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/66649/
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> 
> (Updated Dec. 6, 2018, 4:26 a.m.)
> 
> 
> Review request for mesos, Armand Grillet, Jason Lai, Kevin Klues, and Zhitao Li.
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> The current state of support for python in protoc has two serious
> issues:
> 1. The `__init__.py` files necessary to mark a directory as a python
> package aren't generated.
> 2. The import paths in each of the generated .py files do not reflect
> the `--python_path` option passed to `protoc`.
> 
> This results in incomplete code generated, preventing it from being used
> out of the box. To address this issue, we're adding a `pb2gen.sh` script
> to do end-to-end code generation for python protobuf bindings: the
> script generates the bindings based on what's in the `include` dir, then
> postprocesses the generated code to add proper import paths and the
> `__init__.py` files.
> 
> 
> Diffs
> -----
> 
>   src/python/.gitignore fee529dccf57fd24036733f4b470b7b9865a918c 
>   src/python/lib/pb2gen.sh PRE-CREATION 
>   src/python/lib/requirements.in 86ee2ad40c0c114b0082f2d4f52f75758d41cbd9 
>   support/pylint.config af25dd90cb2d467c688ea4b060dc4640040a068b 
> 
> 
> Diff: https://reviews.apache.org/r/66649/diff/7/
> 
> 
> Testing
> -------
> 
> 1. under `src/python/lib`, run `pb2gen.sh`
> 2. initialize and activate virtualenv: `virtualenv env && . env/bin/activate`
> 3. install reqs: `pip install -r requirements.in`
> 4. try to import modules from generated python code: `python -c 'from mesos.pb2.mesos.v1.master import master_pb2'`
> 
> 
> Thanks,
> 
> Eric Chung
> 
>