adding "keep_ssh_dir" option

action.yml

@@ -25,6 +25,10 @@ inputs:
     description: "replace / ignore / fail"
     required: false
     default: "fail"
+  keep_ssh_dir:
+    description: "Set true if you DO NOT want to remove .ssh directory"
+    required: false
+    default: ""
 runs:
   using: "node16"
   main: "lib/index.js"

src/main.ts

@@ -111,10 +111,14 @@ function setup(): void {
  * cleanup function
  */
 function cleanup(): void {
+    if (shouldRemoveSshDirectory()) {
         // remove ".ssh" directory
         const sshDirName = removeSshDirectory();
 
         console.log(`SSH key in ${sshDirName} has been removed successfully.`);
+    } else {
+        console.log(`Skip directory deletion.`);
+    }
 }
 
 /**
@@ -236,6 +240,28 @@ function shouldCreateKeyFile(keyFilePath: string, ifKeyExists: string): boolean
     }
 }
 
+/**
+ * should remove SSH directory?
+ * @returns Yes/No
+ */
+function shouldRemoveSshDirectory(): boolean {
+    const keepsSshDir = core.getInput("keep_ssh_dir", {
+        required: true,
+    });
+
+    // empty string or falsy value in YAML
+    switch (keepsSshDir.toLowerCase()) {
+        case "":
+        case "false":
+        case "no":
+        case "off":
+            return true;
+
+        default:
+            return false;
+    }
+}
+
 /**
  * build array of known_hosts
  * @param knownHosts known_hosts