Document stdin behaviour for getting raw key

Document the logic described in makeRawKey.
google · Dec 3, 2024 · 094d62b · 094d62b
1 parent 068b9f8
commit 094d62b
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/cmd/fscrypt/flags.go b/cmd/fscrypt/flags.go
@@ -222,7 +222,8 @@ var (
 		Usage: `Use the contents of FILE as the wrapping key when
 			creating or unlocking raw_key protectors. FILE should be
 			formatted as raw binary and should be exactly 32 bytes
-			long.`,
+			long. When running non-interactively and no key is provided,
+			will try to read the key from stdin.`,
 	}
 	userFlag = &stringFlag{
 		Name:    "user",