Produce TFLite NuGet package

taskcluster/scriptworker-task-github.yml

@@ -51,11 +51,13 @@ build:
       - "android-armv7-cpu-opt"
       - "win-amd64-cpu-opt"
       - "win-amd64-gpu-opt"
+      - "win-amd64-tflite-opt"
     java_aar:
       - "android-java-opt"
     nuget:
       - "win-amd64-cpu-opt"
       - "win-amd64-gpu-opt"
+      - "win-amd64-tflite-opt"
   metadata:
     name: "DeepSpeech GitHub Packages"
     description: "Trigger Uploading of DeepSpeech Packages to GitHub release page"

taskcluster/scriptworker-task-nuget.yml

@@ -4,6 +4,7 @@ build:
     # Make sure builds are ready
     - "win-amd64-cpu-opt"
     - "win-amd64-gpu-opt"
+    - "win-amd64-tflite-opt"
   allowed:
     - "tag"
   ref_match: "refs/tags/"
@@ -20,6 +21,7 @@ build:
     nuget:
       - "win-amd64-cpu-opt"
       - "win-amd64-gpu-opt"
+      - "win-amd64-tflite-opt"
   metadata:
     name: "DeepSpeech NuGet Packages"
     description: "Trigger Uploading of DeepSpeech .Net Framework bindings to NuGet"

taskcluster/tc-netframework-ds-tests.sh

@@ -2,15 +2,21 @@
 
 set -xe
 
-cuda=$1
+bitrate=$1
+package_option=$2
 
 source $(dirname "$0")/tc-tests-utils.sh
 
 bitrate=$1
 set_ldc_sample_filename "${bitrate}"
 
-if [ "${cuda}" = "--cuda" ]; then
+if [ "${package_option}" = "--cuda" ]; then
     PROJECT_NAME="DeepSpeech-GPU"
+elif [ "${package_option}" = "--tflite" ]; then
+    PROJECT_NAME="DeepSpeech-TFLite"
+    model_source=${DEEPSPEECH_TEST_MODEL//.pb/.tflite}
+    model_name=$(basename "${model_source}")
+    model_name_mmap=$(basename "${model_source}")
 else
     PROJECT_NAME="DeepSpeech"
 fi

taskcluster/tc-tests-utils.sh

@@ -614,8 +614,11 @@ install_nuget()
   mkdir -p "${TASKCLUSTER_TMP_DIR}/repo/"
   mkdir -p "${TASKCLUSTER_TMP_DIR}/ds/"
 
-  ${WGET} -O - "${DEEPSPEECH_ARTIFACTS_ROOT}/${nuget}" | gunzip > "${TASKCLUSTER_TMP_DIR}/${PROJECT_NAME}.${DS_VERSION}.nupkg"
-  ${WGET} -O - "${DEEPSPEECH_ARTIFACTS_ROOT}/DeepSpeechConsole.exe" | gunzip > "${TASKCLUSTER_TMP_DIR}/ds/DeepSpeechConsole.exe"
+  nuget_pkg_url=$(get_dep_nuget_pkg_url "${nuget}")
+  console_pkg_url=$(get_dep_nuget_pkg_url "DeepSpeechConsole.exe")
+
+  ${WGET} -O - "${nuget_pkg_url}" | gunzip > "${TASKCLUSTER_TMP_DIR}/${PROJECT_NAME}.${DS_VERSION}.nupkg"
+  ${WGET} -O - "${console_pkg_url}" | gunzip > "${TASKCLUSTER_TMP_DIR}/ds/DeepSpeechConsole.exe"
 
   nuget sources add -Name repo -Source $(cygpath -w "${TASKCLUSTER_TMP_DIR}/repo/")
 
@@ -1207,6 +1210,25 @@ get_dep_npm_pkg_url()
   exit 1
 }
 
+# Will inspect this task's dependencies for one that provides a matching NuGet package
+get_dep_nuget_pkg_url()
+{
+  local deepspeech_pkg=$1
+  local all_deps="$(curl -s https://community-tc.services.mozilla.com/api/queue/v1/task/${TASK_ID} | python -c 'import json; import sys; print(" ".join(json.loads(sys.stdin.read())["dependencies"]));')"
+
+  for dep in ${all_deps}; do
+    local has_artifact=$(curl -s https://community-tc.services.mozilla.com/api/queue/v1/task/${dep}/artifacts | python -c 'import json; import sys; has_artifact = True in [ e["name"].find("'${deepspeech_pkg}'") > 0 for e in json.loads(sys.stdin.read())["artifacts"] ]; print(has_artifact)')
+    if [ "${has_artifact}" = "True" ]; then
+      echo "https://community-tc.services.mozilla.com/api/queue/v1/task/${dep}/artifacts/public/${deepspeech_pkg}"
+      exit 0
+    fi;
+  done;
+
+  echo ""
+  # This should not be reached, otherwise it means we could not find a matching nodejs package
+  exit 1
+}
+
 extract_python_versions()
 {
   # call extract_python_versions ${pyver_full} pyver pyver_pkg py_unicode_type pyconf pyalias

taskcluster/test-netframework-win-tflite-opt.yml

@@ -0,0 +1,11 @@
+build:
+  template_file: test-win-opt-base.tyml
+  dependencies:
+    - "win-amd64-tflite-opt"
+    - "test-training_16k-linux-amd64-py36m-opt"
+  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
+  args:
+    tests_cmdline: "$TASKCLUSTER_TASK_DIR/DeepSpeech/ds/taskcluster/tc-netframework-ds-tests.sh 16k --tflite"
+  metadata:
+    name: "DeepSpeech Windows AMD64 TFLite .Net Framework tests"
+    description: "Testing DeepSpeech .Net Framework for Windows/AMD64, TFLite, optimized version"

taskcluster/win-amd64-tflite-opt.yml

@@ -8,7 +8,7 @@ build:
     - "notify.irc-channel.${notifications.irc}.on-failed"
   tensorflow: "https://community-tc.services.mozilla.com/api/index/v1/task/project.deepspeech.tensorflow.pip.r1.15.ceb46aae5836a0f648a2c3da5942af2b7d1b98bf.win/artifacts/public/home.tar.xz"
   scripts:
-    build: "taskcluster/win-build.sh tflite"
+    build: "taskcluster/win-build.sh --tflite"
     package: "taskcluster/win-package.sh"
   nc_asset_name: "native_client.amd64.tflite.win.tar.xz"
   maxRunTime: 14400

taskcluster/win-build.sh

@@ -2,8 +2,7 @@
 
 set -xe
 
-cuda=$1
-runtime=$1
+package_option=$1
 
 source $(dirname "$0")/tc-tests-utils.sh
 
@@ -14,16 +13,17 @@ BAZEL_TARGETS="
 //native_client:generate_trie
 "
 
-if [ "${cuda}" = "--cuda" ]; then
+if [ "${package_option}" = "--cuda" ]; then
     BAZEL_ENV_FLAGS="TF_NEED_CUDA=1 ${TF_CUDA_FLAGS}"
     BAZEL_BUILD_FLAGS="${BAZEL_CUDA_FLAGS} ${BAZEL_EXTRA_FLAGS} ${BAZEL_OPT_FLAGS}"
     PROJECT_NAME="DeepSpeech-GPU"
+elif [ "${package_option}" = "--tflite" ]; then
+    PROJECT_NAME="DeepSpeech-TFLite"
+    BAZEL_BUILD_FLAGS="--define=runtime=tflite ${BAZEL_OPT_FLAGS} ${BAZEL_EXTRA_FLAGS}"
+    BAZEL_ENV_FLAGS="TF_NEED_CUDA=0"
 else
     PROJECT_NAME="DeepSpeech"
-    if [ "${runtime}" = "tflite" ]; then
-        BAZEL_BUILD_TFLITE="--define=runtime=tflite"
-    fi;
-    BAZEL_BUILD_FLAGS="${BAZEL_BUILD_TFLITE} ${BAZEL_OPT_FLAGS} ${BAZEL_EXTRA_FLAGS}"
+    BAZEL_BUILD_FLAGS="${BAZEL_OPT_FLAGS} ${BAZEL_EXTRA_FLAGS}"
     BAZEL_ENV_FLAGS="TF_NEED_CUDA=0"
 fi
 
@@ -31,7 +31,7 @@ SYSTEM_TARGET=host-win
 
 do_bazel_build
 
-if [ "${cuda}" = "--cuda" ]; then
+if [ "${package_option}" = "--cuda" ]; then
     cp ${DS_ROOT_TASK}/DeepSpeech/tf/bazel-bin/native_client/liblibdeepspeech.so.ifso ${DS_ROOT_TASK}/DeepSpeech/tf/bazel-bin/native_client/libdeepspeech.so.if.lib
 fi
 
@@ -44,10 +44,10 @@ export SUPPORTED_PYTHON_VERSIONS="3.5.4 3.6.8 3.7.6 3.8.1"
 if [ "${runtime}" = "tflite" ]; then
   do_deepspeech_python_build "--tflite"
 else
-  do_deepspeech_python_build "${cuda}"
+  do_deepspeech_python_build "${package_option}"
 fi
 
-do_deepspeech_nodejs_build "${cuda}"
+do_deepspeech_nodejs_build "${package_option}"
 
 do_deepspeech_netframework_build