[Web] Support building tvm/web on Windows

python/tvm/contrib/emcc.py

@@ -16,6 +16,7 @@
 # under the License.
 """Util to invoke emscripten compilers in the system."""
 # pylint: disable=invalid-name
+import os
 import subprocess
 from tvm._ffi.base import py_str
 from tvm._ffi.libinfo import find_lib_path
@@ -78,7 +79,8 @@ def create_tvmjs_wasm(output, objects, options=None, cc="emcc"):
     if options:
         cmd += options
 
-    proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+    is_windows = os.name == "nt"
+    proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, shell=is_windows)
     (out, _) = proc.communicate()
 
     if proc.returncode != 0:

web/Makefile

@@ -15,7 +15,7 @@
 # specific language governing permissions and limitations
 # under the License.
 
-TVM_ROOT=$(shell cd ..; pwd)
+TVM_ROOT=$(realpath $(shell dirname $(firstword $(MAKEFILE_LIST))))/../
 
 INCLUDE_FLAGS = -I$(TVM_ROOT) -I$(TVM_ROOT)/include\
 	-I$(TVM_ROOT)/3rdparty/dlpack/include -I$(TVM_ROOT)/3rdparty/dmlc-core/include\

web/package.json

@@ -9,11 +9,11 @@
   "main": "lib/index.js",
   "types": "lib/index.d.ts",
   "scripts": {
-    "prepwasm": "make && python3 tests/python/prepare_test_libs.py",
+    "prepwasm": "make && python tests/python/prepare_test_libs.py",
     "build": "rollup -c",
     "lint": "eslint -c .eslintrc.json .",
     "typedoc": "typedoc src/index.ts --plugin typedoc-plugin-missing-exports",
-    "test": "node --experimental-wasm-eh node_modules/.bin/jest",
+    "test": "python run_jest.py",
     "bundle": "npm run build && cp lib/index.js dist/index.js && cp lib/index.js dist/tvmjs.bundle.js",
     "example": "npm run bundle && node apps/node/example.js",
     "example:wasi": "npm run bundle && node --experimental-wasi-unstable-preview1 --experimental-wasm-bigint apps/node/wasi_example.js",

web/run_jest.py

@@ -0,0 +1,24 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# Run jest based on current OS
+
+import os
+
+if os.name == "nt":
+    os.system("node_modules\\.bin\\jest")
+else:
+    os.system("node node_modules/.bin/jest")

web/tests/python/websock_rpc_test.py

@@ -48,7 +48,7 @@ def test_rpc():
     temp = utils.tempdir()
 
     wasm_path = temp.relpath("addone.wasm")
-    fadd.export_library(wasm_path, fcompile=emcc.create_tvmjs_wasm)
+    fadd.export_library(wasm_path, fcompile=tvmjs.create_tvmjs_wasm)
 
     wasm_binary = open(wasm_path, "rb").read()