Linux CI scripts fixes

ci_scripts/all-vars.sh

@@ -4,7 +4,7 @@ set -xe
 
 export OS=$(uname)
 if [ "${OS}" = "Linux" ]; then
-    export DS_ROOT_TASK=${HOME}
+    export DS_ROOT_TASK=${CI_TASK_DIR}
     export PYENV_ROOT="${DS_ROOT_TASK}/pyenv-root"
     export DS_CPU_COUNT=$(nproc)
 fi;

ci_scripts/electronjs-tests-prod.sh

@@ -28,6 +28,12 @@ export_node_bin_path
 which electron
 which node
 
+if [ "${OS}" = "Linux" ]; then
+  export DISPLAY=':99.0'
+  sudo Xvfb :99 -screen 0 1024x768x24 > /dev/null 2>&1 &
+  xvfb_process=$!
+fi
+
 node --version
 
 deepspeech --version
@@ -35,3 +41,8 @@ deepspeech --version
 check_runtime_electronjs
 
 run_electronjs_prod_inference_tests "${bitrate}"
+
+if [ "${OS}" = "Linux" ]; then
+  sleep 1
+  sudo kill -9 ${xvfb_process} || true
+fi

ci_scripts/electronjs-tests.sh

@@ -21,6 +21,12 @@ export_node_bin_path
 which electron
 which node
 
+if [ "${OS}" = "Linux" ]; then
+  export DISPLAY=':99.0'
+  sudo Xvfb :99 -screen 0 1024x768x24 > /dev/null 2>&1 &
+  xvfb_process=$!
+fi
+
 node --version
 
 deepspeech --version
@@ -28,3 +34,8 @@ deepspeech --version
 check_runtime_electronjs
 
 run_electronjs_inference_tests
+
+if [ "${OS}" = "Linux" ]; then
+  sleep 1
+  sudo kill -9 ${xvfb_process} || true
+fi

ci_scripts/electronjs_tflite-tests-prod.sh

@@ -28,6 +28,12 @@ export_node_bin_path
 which electron
 which node
 
+if [ "${OS}" = "Linux" ]; then
+  export DISPLAY=':99.0'
+  sudo Xvfb :99 -screen 0 1024x768x24 > /dev/null 2>&1 &
+  xvfb_process=$!
+fi
+
 node --version
 
 deepspeech --version
@@ -35,3 +41,8 @@ deepspeech --version
 check_runtime_electronjs
 
 run_electronjs_prodtflite_inference_tests "${bitrate}"
+
+if [ "${OS}" = "Linux" ]; then
+  sleep 1
+  sudo kill -9 ${xvfb_process} || true
+fi

ci_scripts/electronjs_tflite-tests.sh

@@ -25,6 +25,12 @@ export_node_bin_path
 which electron
 which node
 
+if [ "${OS}" = "Linux" ]; then
+  export DISPLAY=':99.0'
+  sudo Xvfb :99 -screen 0 1024x768x24 > /dev/null 2>&1 &
+  xvfb_process=$!
+fi
+
 node --version
 
 deepspeech --version
@@ -32,3 +38,8 @@ deepspeech --version
 check_runtime_electronjs
 
 run_electronjs_inference_tests
+
+if [ "${OS}" = "Linux" ]; then
+  sleep 1
+  sudo kill -9 ${xvfb_process} || true
+fi

ci_scripts/tf-vars.sh

@@ -4,7 +4,7 @@ set -ex
 
 export OS=$(uname)
 if [ "${OS}" = "Linux" ]; then
-    export DS_ROOT_TASK=$(/usr/bin/realpath "${HOME}")
+    export DS_ROOT_TASK=${CI_TASK_DIR}
 
     BAZEL_URL=https://github.com/bazelbuild/bazel/releases/download/3.1.0/bazel-3.1.0-installer-linux-x86_64.sh
     BAZEL_SHA256=7ba815cbac712d061fe728fef958651512ff394b2708e89f79586ec93d1185ed