julia/ci: add a Jenkins job for doc build

Jenkinsfile

@@ -646,13 +646,25 @@ try {
   }
 
   stage('Deploy') {
-    node('mxnetlinux-cpu') {
-      ws('workspace/docs') {
-        init_git()
-        timeout(time: max_time, unit: 'MINUTES') {
-          sh "ci/build.py --build --platform ubuntu_cpu /work/runtime_functions.sh deploy_docs"
-          sh "tests/ci_build/deploy/ci_deploy_doc.sh ${env.BRANCH_NAME} ${env.BUILD_NUMBER}"
-        }        
+    parallel 'MXNet docs': {
+      node('mxnetlinux-cpu') {
+        ws('workspace/docs') {
+          init_git()
+          timeout(time: max_time, unit: 'MINUTES') {
+            sh "ci/build.py --build --platform ubuntu_cpu /work/runtime_functions.sh deploy_docs"
+            sh "tests/ci_build/deploy/ci_deploy_doc.sh ${env.BRANCH_NAME} ${env.BUILD_NUMBER}"
+          }
+        }
+      }
+    },
+    'Julia docs': {
+      node('mxnetlinux-cpu') {
+        ws('workspace/julia-docs') {
+          init_git()
+          timeout(time: max_time, unit: 'MINUTES') {
+            sh "ci/build.py --build --platform ubuntu_cpu /work/runtime_functions.sh deploy_jl_docs"
+          }
+        }
       }
     }
   }

ci/docker/runtime_functions.sh

@@ -429,17 +429,19 @@ unittest_ubuntu_gpu_R() {
 
 unittest_ubuntu_cpu_julia06() {
     set -ex
+    export PATH="/work/julia/bin:$PATH"
     export MXNET_HOME='/work/mxnet'
     export JULIA_PKGDIR='/work/julia-pkg'
     export DEPDIR=`julia -E 'Pkg.dir()'`
-    export JULIA='/work/julia/bin/julia'
 
-    $JULIA -e 'versioninfo()'
+    julia -e 'versioninfo()'
     ln -sf ${MXNET_HOME}/julia ${DEPDIR}/MXNet
     # use the prebuilt binary from $MXNET_HOME/lib
-    $JULIA -e 'Pkg.build("MXNet")'
+    julia -e 'Pkg.build("MXNet")'
     # run the script `julia/test/runtests.jl`
-    $JULIA -e 'Pkg.test("MXNet")'
+    julia-e 'Pkg.test("MXNet")'
+    # See https://github.com/dmlc/MXNet.jl/pull/303#issuecomment-341171774
+    julia -e 'using MXNet; mx._sig_checker()'
 }
 
 unittest_centos7_cpu() {
@@ -521,12 +523,30 @@ test_ubuntu_cpu_python3() {
 deploy_docs() {
     set -ex
     pushd .
-    
+
     make docs
 
     popd
 }
 
+deploy_jl_docs {
+    set -ex
+    export PATH="/work/julia/bin:$PATH"
+    export MXNET_HOME='/work/mxnet'
+    export JULIA_PKGDIR='/work/julia-pkg'
+    export DEPDIR=`julia -E 'Pkg.dir()'`
+
+    julia -e 'versioninfo()'
+    ln -sf ${MXNET_HOME}/julia ${DEPDIR}/MXNet
+    # use the prebuilt binary from $MXNET_HOME/lib
+    julia -e 'Pkg.build("MXNet")'
+    # build docs
+    julia -e 'Pkg.add("Documenter")'
+    julia -e 'cd(Pkg.dir("MXNet")); include(joinpath("docs", "make.jl"))'
+    # TODO: make Jenkins worker push to MXNet.jl ph-pages branch if master build
+    # ...
+}
+
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