Update the build scripts to make the process easier. (#361)

docs/release/build.sh

 #!/bin/bash
 
+# Please execute this script from VisualDL root folder
+
 PYTHON_FLAGS=""
 if [ "$1" != "" ]; then
     echo "using python abi: $1"
     if [ "$1" == "cp27-cp27m" ]; then
+        PYTHON_EXECUTABLE=/opt/python/cp27-cp27m/bin/python
+        PIP_EXECUTABLE=/opt/python/cp27-cp27m/bin/pip
         export LD_LIBRARY_PATH=/opt/_internal/cpython-2.7.11-ucs2/lib:${LD_LIBRARY_PATH#/opt/_internal/cpython-2.7.11-ucs4/lib:}
         export PATH=/opt/python/cp27-cp27m/bin/:${PATH}
         export PYTHON_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=/opt/python/cp27-cp27m/bin/python
-                             -DPYTHON_INCLUDE_DIR:PATH=/opt/python/cp27-cp27m/include/python2.7
-                             -DPYTHON_LIBRARIES:FILEPATH=/opt/_internal/cpython-2.7.11-ucs2/lib/libpython2.7.so"
+        -DPYTHON_INCLUDE_DIR:PATH=/opt/python/cp27-cp27m/include/python2.7
+        -DPYTHON_LIBRARIES:FILEPATH=/opt/_internal/cpython-2.7.11-ucs2/lib/libpython2.7.so"
     elif [ "$1" == "cp27-cp27mu" ]; then
+        PYTHON_EXECUTABLE=/opt/python/cp27-cp27mu/bin/python
+        PIP_EXECUTABLE=/opt/python/cp27-cp27mu/bin/pip
         export LD_LIBRARY_PATH=/opt/_internal/cpython-2.7.11-ucs4/lib:${LD_LIBRARY_PATH#/opt/_internal/cpython-2.7.11-ucs2/lib:}
         export PATH=/opt/python/cp27-cp27mu/bin/:${PATH}
         export PYTHON_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=/opt/python/cp27-cp27mu/bin/python
-                             -DPYTHON_INCLUDE_DIR:PATH=/opt/python/cp27-cp27mu/include/python2.7
-                             -DPYTHON_LIBRARIES:FILEPATH=/opt/_internal/cpython-2.7.11-ucs4/lib/libpython2.7.so"
+        -DPYTHON_INCLUDE_DIR:PATH=/opt/python/cp27-cp27mu/include/python2.7
+        -DPYTHON_LIBRARIES:FILEPATH=/opt/_internal/cpython-2.7.11-ucs4/lib/libpython2.7.so"
+        # elif [ "$1" == "cp35-cp35m" ]; then
+        #     export LD_LIBRARY_PATH=/opt/_internal/cpython-3.5.1/lib:${LD_LIBRARY_PATH#/opt/_internal/cpython-3.5.1/lib:}
+        #     export PATH=/opt/python/cp35-cp35m/bin/:${PATH}
+        #     export PYTHON_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=/opt/python/cp35-cp35m/bin/python
+        #                          -DPYTHON_INCLUDE_DIR:PATH=/opt/python/cp35-cp35m/include/python3.5m
+        #                          -DPYTHON_LIBRARIES:FILEPATH=/opt/_internal/cpython-3.5.1/lib/libpython3.so"
+    elif [ "$1" == "cp34-cp34m" ]; then
+        PYTHON_EXECUTABLE=/usr/bin/python3.4
+        PIP_EXECUTABLE=/usr/bin/pip3.4
+        export LD_LIBRARY_PATH=/usr/lib64:${LD_LIBRARY_PATH}
+        export PYTHON_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=/usr/bin/python3.4
+        -DPYTHON_INCLUDE_DIR:PATH=/usr/include/python3.4m
+        -DPYTHON_LIBRARIES:FILEPATH=/usr/lib64/libpython3.4m.so"
     elif [ "$1" == "cp35-cp35m" ]; then
-        export LD_LIBRARY_PATH=/opt/_internal/cpython-3.5.1/lib:${LD_LIBRARY_PATH#/opt/_internal/cpython-3.5.1/lib:}
-        export PATH=/opt/python/cp35-cp35m/bin/:${PATH}
-        export PYTHON_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=/opt/python/cp35-cp35m/bin/python
-                             -DPYTHON_INCLUDE_DIR:PATH=/opt/python/cp35-cp35m/include/python3.5m
-                             -DPYTHON_LIBRARIES:FILEPATH=/opt/_internal/cpython-3.5.1/lib/libpython3.so"
+        PYTHON_EXECUTABLE=/usr/bin/python3.5
+        PIP_EXECUTABLE=/usr/bin/pip3.5
+        export LD_LIBRARY_PATH=/usr/lib64:${LD_LIBRARY_PATH}
+        export PYTHON_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=/usr/bin/python3.5
+        -DPYTHON_INCLUDE_DIR:PATH=/usr/include/python3.5m
+        -DPYTHON_LIBRARIES:FILEPATH=/usr/lib64/libpython3.5m.so"
+    elif [ "$1" == "cp36-cp36m" ]; then
+        PYTHON_EXECUTABLE=/usr/bin/python3.6
+        PIP_EXECUTABLE=/usr/bin/pip3.6
+        export LD_LIBRARY_PATH=/usr/lib64:${LD_LIBRARY_PATH}
+        export PYTHON_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=/usr/bin/python3.6
+        -DPYTHON_INCLUDE_DIR:PATH=/usr/include/python3.6m
+        -DPYTHON_LIBRARIES:FILEPATH=/usr/lib64/libpython3.6m.so"
     fi
+else
+  echo "Please specify an environment. {cp27-cp27m, cp27-cp27mu, cp34-cp34m, cp35-cp35m, cp36-cp36m}"
+  exit
+fi
+
+if [ "$PYTHON_EXECUTABLE" == "" ]; then
+    echo "Incorrect python environment. "
+    echo "Please choose from {cp27-cp27m, cp27-cp27mu, cp34-cp34m, cp35-cp35m, cp36-cp36m}"
+    exit
 fi
 
 echo $LD_LIBRARY_PATH
 echo $PATH
 echo $PYTHON_FLAGS
 
-python setup.py bdist_wheel
+$PIP_EXECUTABLE install wheel
+$PIP_EXECUTABLE install -r requirements.txt
+$PYTHON_EXECUTABLE setup.py bdist_wheel

docs/release/build_manylinux.md

@@ -12,7 +12,32 @@ The whole build step can be:
     docker run -it paddlepaddle/paddle_manylinux_devel:cuda8.0_cudnn5 /bin/bash
     ```
 
-1. Get the VisualDL code and run build.sh. It will generate a whl file like `visualdl-0.0.2a0-cp27-cp27m(u)-linux_x86_64.whl`
+1. Paddle doesn't support python 3 yet. Therefore, we must setup the python3 environment first.
+    ```
+    yum install https://centos6.iuscommunity.org/ius-release.rpm
+
+    yum -y install python36u
+    yum -y install python36u-pip
+    yum -y install python36u-devel
+
+    yum -y install python35u
+    yum -y install python35u-pip
+    yum -y install python35u-devel
+
+    yum -y install python34u
+    yum -y install python34u-pip
+    yum -y install python34u-devel
+    ```
+
+1. Next, we need to setup Node.js so we can build the frontend code.
+    ```
+    curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.8/install.sh | bash
+    export NVM_DIR="$HOME/.nvm"
+    [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" # This loads nvm
+    nvm install node
+    ```
+
+1. Get the VisualDL code and run docs/release/build.sh. It will generate a whl file like `visualdl-0.0.2a0-cp27-cp27m(u)-linux_x86_64.whl`
 
 1. The `linux` above should be renamed to `manylinux1`