windows_utils.bzl: Escaping \ and " before passing args to bash scrip…

internal/common/test/BUILD.bazel

@@ -1,4 +1,4 @@
-load("@build_bazel_rules_nodejs//:index.bzl", "nodejs_test")
+load("@build_bazel_rules_nodejs//:index.bzl", "nodejs_binary", "nodejs_test")
 load("//internal/common:copy_to_bin.bzl", "copy_to_bin")
 load("//internal/common:params_file.bzl", "params_file")
 
@@ -48,3 +48,18 @@ nodejs_test(
     entry_point = ":check_params_file.js",
     templated_args = ["$(location :params_file.out)"],
 )
+
+nodejs_binary(
+    name = "print_cmd_args",
+    entry_point = ":print_cmd_args.js",
+)
+
+sh_test(
+    name = "test_pass_cmd_args",
+    srcs = ["test_pass_cmd_args.sh"],
+    data = [
+        ":print_cmd_args",
+        "//third_party/github.com/bazelbuild/bazel-skylib:tests/unittest.bash",
+    ],
+    deps = ["@bazel_tools//tools/bash/runfiles"],
+)

internal/common/test/print_cmd_args.js

@@ -0,0 +1,23 @@
+/**
+ * @license
+ * Copyright 2017 The Bazel Authors. All rights reserved.
+ *
+ * Licensed 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.
+ */
+
+const process = require('process')
+
+
+for (var i=2; i < process.argv.length; i += 1) {
+	console.log("arg" + i + "=(" + process.argv[i] + ")");
+}

internal/common/test/test_pass_cmd_args.sh

@@ -0,0 +1,64 @@
+# Copyright 2019 The Bazel Authors. All rights reserved.
+#
+# Licensed 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.
+
+# --- begin runfiles.bash initialization v2 ---
+# Copy-pasted from the Bazel Bash runfiles library v2.
+set -uo pipefail; f=bazel_tools/tools/bash/runfiles/runfiles.bash
+source "${RUNFILES_DIR:-/dev/null}/$f" 2>/dev/null || \
+  source "$(grep -sm1 "^$f " "${RUNFILES_MANIFEST_FILE:-/dev/null}" | cut -f2- -d' ')" 2>/dev/null || \
+  source "$0.runfiles/$f" 2>/dev/null || \
+  source "$(grep -sm1 "^$f " "$0.runfiles_manifest" | cut -f2- -d' ')" 2>/dev/null || \
+  source "$(grep -sm1 "^$f " "$0.exe.runfiles_manifest" | cut -f2- -d' ')" 2>/dev/null || \
+  { echo>&2 "ERROR: cannot find $f"; exit 1; }; f=; set -e
+# --- end runfiles.bash initialization v2 ---
+
+source "$(rlocation build_bazel_rules_nodejs/third_party/github.com/bazelbuild/bazel-skylib/tests/unittest.bash)" \
+  || { echo "Could not source build_bazel_rules_nodejs/third_party/github.com/bazelbuild/bazel-skylib/tests/unittest.bash" >&2; exit 1; }
+
+case "$(uname -s | tr [:upper:] [:lower:])" in
+msys*|mingw*|cygwin*)
+  declare -r is_windows=true
+  ;;
+*)
+  declare -r is_windows=false
+  ;;
+esac
+
+if "$is_windows"; then
+  export MSYS_NO_PATHCONV=1
+  export MSYS2_ARG_CONV_EXCL="*"
+fi
+
+function test_pass_cmd_args() {
+  if "$is_windows"; then
+    script=build_bazel_rules_nodejs/internal/common/test/print_cmd_args.bat
+  else
+    script=build_bazel_rules_nodejs/internal/common/test/print_cmd_args.sh
+  fi
+
+  "$(rlocation ${script})" '/foo bar' "\\foo \\bar" "/foo bar/" \foo\bar /foo/bar \\foo\\bar  "\foo\bar" "\\foo\\bar" '\foo\bar' '\\foo\\bar' >"$TEST_log"
+
+  expect_log 'arg2=(/foo bar)'
+  expect_log 'arg3=(\\foo \\bar)'
+  expect_log 'arg4=(/foo bar/)'
+  expect_log 'arg5=(foobar)'
+  expect_log 'arg6=(/foo/bar)'
+  expect_log 'arg7=(\\foo\\bar)'
+  expect_log 'arg8=(\\foo\\bar)'
+  expect_log 'arg9=(\\foo\\bar)'
+  expect_log 'arg10=(\\foo\\bar)'
+  expect_log 'arg11=(\\\\foo\\\\bar)'
+}
+
+run_suite "test_pass_cmd_args test suite"

internal/common/windows_utils.bzl

@@ -96,7 +96,12 @@ set RUNFILES_MANIFEST_ONLY=1
 call :rlocation "{sh_script}" run_script
 for %%a in ("{bash_bin}") do set "bash_bin_dir=%%~dpa"
 set PATH=%bash_bin_dir%;%PATH%
-"{bash_bin}" -c "!run_script! %*"
+set args=%*
+if defined args (
+  set args=!args:\=\\\\!
+  set args=!args:"=\"!
+)
+"{bash_bin}" -c "!run_script! !args!"
 """.format(
             bash_bin = ctx.toolchains["@bazel_tools//tools/sh:toolchain_type"].path,
             sh_script = _to_manifest_path(ctx, shell_script),