The build-from-source doc has content duplicate with the build-using-docker one

[wangkuiyi]

http://www.paddlepaddle.org/docs/develop/documentation/en/getstarted/build_and_install/build_from_source_en.html

and

http://www.paddlepaddle.org/docs/develop/documentation/zh/getstarted/build_and_install/build_from_source_cn.html

[luotao1]

@typhoonzero and I discussed in #5941 (sorry, it is a Chinese issue), build-using-docker is a nice article for blog, and we decide to remain build-from-source, and put build-using-docker into our blog repo later. Thus, we do following things:

• build-from-source describes how to build-using-docker as well.

# run the following command to build a CPU-Only binaries if you are using docker
docker run -it -v $PWD:/paddle -e "WITH_GPU=OFF" -e "WITH_TESTING=OFF" paddlepaddle/paddle_manylinux_devel:cuda8.0_cudnn5 bash -x paddle/scripts/docker/build.sh
# else run these commands
mkdir build

• We extract the unitest part from build-using-docker into build-from-source. http://www.paddlepaddle.org/docs/develop/documentation/en/getstarted/build_and_install/build_from_source_en.html#run-tests

So can we remove the link of build-using-docker again after #6306 ?

[typhoonzero]

I thought it will be great if we put build-using-docker to blog as a "best practice" post and extend the documents. Then we can make the document simple and clear.

[wangkuiyi]

I think PaddlePaddle contributors should use Docker to unique their development environments. Otherwise, it would be even difficult to report building problems in issues, and it would be hard for us to figure out the reasons.

I agree that Docker-based building process should generate wheel packages (or other pip-installable formats) so that DL researchers could do pip install paddle and don't have to rely on Docker.

[typhoonzero]

@luotao1 @wangkuiyi Can we merge build from docker document contents to build from source and make Docker build method our only official supported build method? And make build from docker shorter?

[luotao1]

Can we merge build from docker document contents to build from source and make Docker build method our only official supported build method?

I agree it. But what's the new title? Still build from source?

• Install and Build
  • Install Using pip
  • Run in Docker Containers
  • Build from Sources

[luotao1]

close due to we have the new install document: http://www.paddlepaddle.org/docs/0.14.0/documentation/fluid/zh/new_docs/beginners_guide/install/install_doc.html