Merge pull request #1362 from kolyshkin/v1-bad-open

Don't call open("") backport
urfave · Apr 22, 2022 · 1b4a05e · 1b4a05e
2 parents b963ddc + 0fbd4f5
commit 1b4a05e
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/flag.go b/flag.go
@@ -338,8 +338,10 @@ func flagFromFileEnv(filePath, envName string) (val string, ok bool) {
 		}
 	}
 	for _, fileVar := range strings.Split(filePath, ",") {
-		if data, err := ioutil.ReadFile(fileVar); err == nil {
-			return string(data), true
+		if fileVar != "" {
+			if data, err := ioutil.ReadFile(fileVar); err == nil {
+				return string(data), true
+			}
 		}
 	}
 	return "", false