Adding upstream version 1.22.1.upstream/1.22.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 38 insertions, 0 deletions

diff --git a/src/cmd/internal/osinfo/os_js.go b/src/cmd/internal/osinfo/os_js.go
new file mode 100644
index 0000000..f4f03aa
--- /dev/null
+++ b/src/cmd/internal/osinfo/os_js.go
@@ -0,0 +1,38 @@
+// Copyright 2022 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build js
+
+package osinfo
+
+import (
+	"fmt"
+	"syscall/js"
+)
+
+// Version returns the OS version name/number.
+func Version() (string, error) {
+	// Version detection on Wasm varies depending on the underlying runtime
+	// (browser, node, etc), nor is there a standard via something like
+	// WASI (see https://go.dev/issue/31105). For now, attempt a few simple
+	// combinations for the convenience of reading logs at build.golang.org
+	// and local development. It's not a goal to recognize all environments.
+	if v, ok := node(); ok {
+		return "Node.js " + v, nil
+	}
+	return "", fmt.Errorf("unrecognized environment")
+}
+
+func node() (version string, ok bool) {
+	// Try the https://nodejs.org/api/process.html#processversion API.
+	p := js.Global().Get("process")
+	if p.IsUndefined() {
+		return "", false
+	}
+	v := p.Get("version")
+	if v.IsUndefined() {
+		return "", false
+	}
+	return v.String(), true
+}