Update dmlc-core. (#5466)

* Copy dmlc travis script to XGBoost.

.travis.yml

@@ -44,7 +44,7 @@ addons:
     update: true
 
 before_install:
-  - source dmlc-core/scripts/travis/travis_setup_env.sh
+  - source tests/travis/travis_setup_env.sh
   - if [ "${TASK}" != "python_sdist_test" ]; then export PYTHONPATH=${PYTHONPATH}:${PWD}/python-package; fi
   - echo "MAVEN_OPTS='-Xmx2g -XX:MaxPermSize=1024m -XX:ReservedCodeCacheSize=512m -Dorg.slf4j.simpleLogger.defaultLogLevel=error'" > ~/.mavenrc
 
@@ -60,7 +60,7 @@ cache:
     - ${HOME}/.cache/pip
 
 before_cache:
-  - dmlc-core/scripts/travis/travis_before_cache.sh
+  - tests/travis/travis_before_cache.sh
 
 after_failure:
   - tests/travis/travis_after_failure.sh

dmlc-core

@@ -1 +1 @@
-Subproject commit 552f7de748fbff34f2708b03f930a47ded45d78e
+Subproject commit 981b1c32f91668e669ee376856f92f36cfd2a351

tests/travis/travis_before_cache.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+# do nothing for now
+ls -alLR ${CACHE_PREFIX}

tests/travis/travis_setup_env.sh

@@ -0,0 +1,40 @@
+# script to be sourced in travis yml
+# setup all enviroment variables
+
+export CACHE_PREFIX=${HOME}/.cache/usr
+export PATH=${HOME}/.local/bin:${PATH}
+export PATH=${PATH}:${CACHE_PREFIX}/bin
+export CPLUS_INCLUDE_PATH=${CPLUS_INCLUDE_PATH}:${CACHE_PREFIX}/include
+export C_INCLUDE_PATH=${C_INCLUDE_PATH}:${CACHE_PREFIX}/include
+export LIBRARY_PATH=${LIBRARY_PATH}:${CACHE_PREFIX}/lib
+export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:${CACHE_PREFIX}/lib
+export DYLD_LIBRARY_PATH=${DYLD_LIBRARY_PATH}:${CACHE_PREFIX}/lib
+
+alias make="make -j4"
+
+# setup the cache prefix folder
+if [ ! -d ${HOME}/.cache ]; then
+    mkdir ${HOME}/.cache
+fi
+
+if [ ! -d ${CACHE_PREFIX} ]; then
+    mkdir ${CACHE_PREFIX}
+fi
+if [ ! -d ${CACHE_PREFIX}/include ]; then
+    mkdir ${CACHE_PREFIX}/include
+fi
+if [ ! -d ${CACHE_PREFIX}/lib ]; then
+    mkdir ${CACHE_PREFIX}/lib
+fi
+if [ ! -d ${CACHE_PREFIX}/bin ]; then
+    mkdir ${CACHE_PREFIX}/bin
+fi
+
+# setup CUDA path if NVCC_PREFIX exists
+if [ ! -z "$NVCC_PREFIX" ]; then
+    export PATH=${PATH}:${NVCC_PREFIX}/usr/local/cuda-7.5/bin
+    export CPLUS_INCLUDE_PATH=${CPLUS_INCLUDE_PATH}:${NVCC_PREFIX}/usr/local/cuda-7.5/include
+    export C_INCLUDE_PATH=${C_INCLUDE_PATH}:${NVCC_PREFIX}/usr/local/cuda-7.5/include
+    export LIBRARY_PATH=${LIBRARY_PATH}:${NVCC_PREFIX}/usr/local/cuda-7.5/lib64:${NVCC_PREFIX}/usr/lib/x86_64-linux-gnu
+    export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:${NVCC_PREFIX}/usr/local/cuda-7.5/lib64:${NVCC_PREFIX}/usr/lib/x86_64-linux-gnu
+fi