travis for check broken links

.travis.yml

@@ -56,7 +56,7 @@ before_install:
   - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo paddle/scripts/travis/before_install.linux.sh; fi
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then paddle/scripts/travis/before_install.osx.sh; fi
   - if [[ "$JOB" == "PRE_COMMIT" ]]; then sudo ln -s /usr/bin/clang-format-3.8 /usr/bin/clang-format; fi
-  - pip install wheel protobuf sphinx recommonmark virtualenv numpy sphinx_rtd_theme pre-commit
+  - pip install wheel protobuf sphinx recommonmark virtualenv numpy sphinx_rtd_theme pre-commit requests==2.9.2 LinkChecker
 script:
   - paddle/scripts/travis/main.sh
 notifications:

paddle/scripts/travis/docs.sh

@@ -7,6 +7,19 @@ source ./common.sh
 cmake .. -DCMAKE_BUILD_TYPE=Debug -DWITH_GPU=OFF -DWITH_DOC=ON
 make paddle_docs paddle_docs_cn
 
+# check websites for broken links
+set +e
+linkchecker doc/cn/html/index.html > doc_cn.out
+linkchecker doc/en/html/index.html > doc_en.out
+for i in doc_cn.out doc_en.out; do
+  echo $i
+  grep " 0 errors found" $i
+  if [ $? -ne 0 ]; then
+    cat $i
+    exit 1
+  fi
+done
+
 # Parse Github URL
 REPO=`git config remote.origin.url`
 SSH_REPO=${REPO/https:\/\/github.com\//git@github.com:}
@@ -35,8 +48,8 @@ git checkout $TARGET_BRANCH || git checkout --orphan $TARGET_BRANCH
 
 # remove old docs. mv new docs.
 rm -rf doc doc_cn
-mv ../doc_cn/html doc_cn
-mv ../doc/html doc
+mv ../doc/cn/html doc_cn
+mv ../doc/en/html doc
 
 # Check is there anything changed.
 set +e