Separate sdist to another job, fix version in setup.py (#1155)

.travis.yml

@@ -159,6 +159,12 @@ jobs:
       python: 3.6
       before_script: pip install dynet
       script: python tests/python/test.py
+    - os: linux
+      language: python
+      python: 3.6
+      before_script: .travis/fix_version.sh
+      script: python setup.py sdist
+      if: tag IS present
 
 install:
   - travis_retry .travis/install_dependencies.sh

.travis/build_dynet.sh

@@ -12,10 +12,7 @@ if [[ "$PYTHON_INSTALL" == manual ]]; then
   cd build
   cmake .. $BACKEND_OPTION -DEIGEN3_INCLUDE_DIR="$EIGEN3_INCLUDE_DIR" -DENABLE_BOOST=ON -DENABLE_CPP_EXAMPLES=ON -DPYTHON=$(which python) -DCMAKE_INSTALL_PREFIX=$(dirname $(which python))/..
 else  # pip
-  if [[ -n "$TRAVIS_TAG" ]]; then
-    sed -i.bak "s/# version=.*/version=\"$TRAVIS_TAG\",/" setup.py
-    sed -i.bak "s/ -march=native//" CMakeLists.txt
-  fi
+  .travis/fix_version.sh
   if [[ "$TRAVIS_OS_NAME" == linux ]]; then
     docker build --rm -t "dynet-manylinux1-${BUILD_ARCH}-builder" -f "docker/Dockerfile-$BUILD_ARCH" .
     docker run -e PYVER -e BUILD_ARCH -e TRAVIS_BUILD_DIR=/build -v "$TRAVIS_BUILD_DIR":/build --rm "dynet-manylinux1-${BUILD_ARCH}-builder" /root/.travis/build_linux_wheel.sh

.travis/fix_version.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+set -xe
+
+cd "$TRAVIS_BUILD_DIR"
+if [[ -n "$TRAVIS_TAG" ]]; then
+  sed -i.bak "s/# version=.*/version=\"$TRAVIS_TAG\",/" setup.py
+  sed -i.bak "s/ -march=native//" CMakeLists.txt
+fi
+

.travis/install_dependencies.sh

@@ -46,10 +46,6 @@ if [[ "$BACKEND" == cuda ]]; then
   sudo ln -s /usr/local/cuda-${CUDA_VERSION_MAJOR}.${CUDA_VERSION_MINOR} /usr/local/cuda
 fi
 
-if [[ "$TRAVIS_OS_NAME" == linux ]]; then
-  python setup.py sdist  # Build sdist
-fi
-
 # Eigen
 hg clone https://bitbucket.org/eigen/eigen/ -r 699b659
 cd eigen