1 files changed, 29 insertions, 0 deletions
diff --git a/src/cmd/go/internal/toolchain/path_plan9.go b/src/cmd/go/internal/toolchain/path_plan9.go
new file mode 100644
index 0000000..3f836a0
--- /dev/null
+++ b/src/cmd/go/internal/toolchain/path_plan9.go
@@ -0,0 +1,29 @@
+// Copyright 2023 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.
+
+package toolchain
+
+import (
+	"io/fs"
+	"os"
+	"path/filepath"
+
+	"cmd/go/internal/gover"
+)
+
+// pathDirs returns the directories in the system search path.
+func pathDirs() []string {
+	return filepath.SplitList(os.Getenv("path"))
+}
+
+// pathVersion returns the Go version implemented by the file
+// described by de and info in directory dir.
+// The analysis only uses the name itself; it does not run the program.
+func pathVersion(dir string, de fs.DirEntry, info fs.FileInfo) (string, bool) {
+	v := gover.FromToolchain(de.Name())
+	if v == "" || info.Mode()&0111 == 0 {
+		return "", false
+	}
+	return v, true
+}