always prepend key of github.com

.eslintrc.yml

@@ -14,7 +14,9 @@ parserOptions:
   project: ./tsconfig.json
 rules: # https://eslint.org/docs/rules/
   accessor-pairs: error
-  array-bracket-newline: error
+  array-bracket-newline:
+  - error
+  - consistent
   array-bracket-spacing:
   - error
   - never
@@ -311,4 +313,8 @@ rules: # https://eslint.org/docs/rules/
   - error
   - functions: false
   "@typescript-eslint/semi": error
-  "@typescript-eslint/strict-boolean-expressions": error
+  "@typescript-eslint/strict-boolean-expressions":
+  - error
+  - allowString: false
+    allowNumber: false
+    allowNullableObject: false

lib/index.js

@@ -2723,6 +2723,9 @@ Object.defineProperty(exports, "__esModule", ({ value: true }));
 const fs_1 = __importDefault(__nccwpck_require__(147));
 const path_1 = __importDefault(__nccwpck_require__(17));
 const core = __importStar(__nccwpck_require__(186));
+const KNOWN_HOSTS = [
+    "github.com ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAq2A7hRGmdnm9tUDbO9IDSwBK6TbQa+PXYPCPy6rbTrTtw7PHkccKrpp0yVhp5HdEIcKr6pLlVDBfOLX9QUsyCOV0wzfjIJNlGEYsdlLJizHhbn2mUjvSAHQqZETYP81eFzLQNnPHt4EVVUh7VfDESU84KezmD5QlWpXLmvU31/yMf+Se8xhHTvKSCZIFImWwoG6mbUoWf9nzpIoaSjB+weqqUUmpaaasXVal72J+UX2B+2RPW3RcT0eOzQgqlJL3RKrTJvdsjE3JEAvGq3lGHSZXy28G3skua2SmVi/w4yCE6gbODqnTWlg7+wC604ydGXA8VJiS5ap43JXiUFFAaQ==",
+];
 try {
     main();
 }
@@ -2748,7 +2751,16 @@ function main() {
     // create ".ssh" directory
     const sshDirName = createSshDirectory();
     // files to be created
-    const files = [];
+    const files = [
+        {
+            name: "known_hosts",
+            contents: insertLf(buildKnownHostsArray(knownHosts).join("\n"), true, true),
+            options: {
+                mode: 0o644,
+                flag: "a",
+            },
+        },
+    ];
     if (shouldCreateKeyFile(path_1.default.join(sshDirName, name), ifKeyExists)) {
         files.push({
             name: name,
@@ -2759,16 +2771,6 @@ function main() {
             },
         });
     }
-    if (knownHosts !== "unnecessary") {
-        files.push({
-            name: "known_hosts",
-            contents: insertLf(knownHosts, true, true),
-            options: {
-                mode: 0o644,
-                flag: "a",
-            },
-        });
-    }
     if (config !== "") {
         files.push({
             name: "config",
@@ -2872,6 +2874,17 @@ function shouldCreateKeyFile(keyFilePath, ifKeyExists) {
             throw new Error(`SSH key is already installed. Set "if_key_exists" to "replace" or "ignore" in order to avoid this error.`);
     }
 }
+/**
+ * build array of known_hosts
+ * @param knownHosts known_hosts
+ * @returns array of known_hosts
+ */
+function buildKnownHostsArray(knownHosts) {
+    if (knownHosts === "unnecessary") {
+        return KNOWN_HOSTS;
+    }
+    return KNOWN_HOSTS.concat(knownHosts);
+}
 
 
 /***/ }),

src/main.ts

@@ -9,6 +9,10 @@ interface FileInfo {
     options: fs.WriteFileOptions;
 }
 
+const KNOWN_HOSTS = [
+    "github.com ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAq2A7hRGmdnm9tUDbO9IDSwBK6TbQa+PXYPCPy6rbTrTtw7PHkccKrpp0yVhp5HdEIcKr6pLlVDBfOLX9QUsyCOV0wzfjIJNlGEYsdlLJizHhbn2mUjvSAHQqZETYP81eFzLQNnPHt4EVVUh7VfDESU84KezmD5QlWpXLmvU31/yMf+Se8xhHTvKSCZIFImWwoG6mbUoWf9nzpIoaSjB+weqqUUmpaaasXVal72J+UX2B+2RPW3RcT0eOzQgqlJL3RKrTJvdsjE3JEAvGq3lGHSZXy28G3skua2SmVi/w4yCE6gbODqnTWlg7+wC604ydGXA8VJiS5ap43JXiUFFAaQ==",
+];
+
 try {
     main();
 } catch (err) {
@@ -36,7 +40,16 @@ function main(): void {
     const sshDirName = createSshDirectory();
 
     // files to be created
-    const files: FileInfo[] = [];
+    const files: FileInfo[] = [
+        {
+            name: "known_hosts",
+            contents: insertLf(buildKnownHostsArray(knownHosts).join("\n"), true, true),
+            options: {
+                mode: 0o644,
+                flag: "a",
+            },
+        },
+    ];
     if (shouldCreateKeyFile(path.join(sshDirName, name), ifKeyExists)) {
         files.push({
             name: name,
@@ -47,16 +60,6 @@ function main(): void {
             },
         });
     }
-    if (knownHosts !== "unnecessary") {
-        files.push({
-            name: "known_hosts",
-            contents: insertLf(knownHosts, true, true),
-            options: {
-                mode: 0o644,
-                flag: "a",
-            },
-        });
-    }
     if (config !== "") {
         files.push({
             name: "config",
@@ -175,3 +178,15 @@ function shouldCreateKeyFile(keyFilePath: string, ifKeyExists: string): boolean
             throw new Error(`SSH key is already installed. Set "if_key_exists" to "replace" or "ignore" in order to avoid this error.`);
     }
 }
+
+/**
+ * build array of known_hosts
+ * @param knownHosts known_hosts
+ * @returns array of known_hosts
+ */
+function buildKnownHostsArray(knownHosts: string): string[] {
+    if (knownHosts === "unnecessary") {
+        return KNOWN_HOSTS;
+    }
+    return KNOWN_HOSTS.concat(knownHosts);
+}