all: sync with master

internal/aghos/permission_unix.go

@@ -0,0 +1,42 @@
+//go:build unix
+
+package aghos
+
+import (
+	"io/fs"
+	"os"
+
+	"github.com/google/renameio/v2/maybe"
+)
+
+// chmod is a Unix implementation of [Chmod].
+func chmod(name string, perm fs.FileMode) (err error) {
+	return os.Chmod(name, perm)
+}
+
+// mkdir is a Unix implementation of [Mkdir].
+func mkdir(name string, perm fs.FileMode) (err error) {
+	return os.Mkdir(name, perm)
+}
+
+// mkdirAll is a Unix implementation of [MkdirAll].
+func mkdirAll(path string, perm fs.FileMode) (err error) {
+	return os.MkdirAll(path, perm)
+}
+
+// writeFile is a Unix implementation of [WriteFile].
+func writeFile(filename string, data []byte, perm fs.FileMode) (err error) {
+	return maybe.WriteFile(filename, data, perm)
+}
+
+// openFile is a Unix implementation of [OpenFile].
+func openFile(name string, flag int, perm fs.FileMode) (file *os.File, err error) {
+	// #nosec G304 -- This function simply wraps the [os.OpenFile] function, so
+	// the security concerns should be addressed to the [OpenFile] calls.
+	return os.OpenFile(name, flag, perm)
+}
+
+// stat is a Unix implementation of [Stat].
+func stat(name string) (fi os.FileInfo, err error) {
+	return os.Stat(name)
+}