Fix: Checkout fail in self-hosted runners when faulty submodule are checked-in (#1196)

* Fix Self hosted runner issue wrt bad submodules - solution cleanup working space.

* Fix format with npm run format output

* Add mock implementation for new function submoduleStatus

* Add 2  test cases for submodule status.

* Codeql-Action Analyse revert v1 to v2

---------

Co-authored-by: Bassem Dghaidi <568794+Link-@users.noreply.github.com>
Co-authored-by: sminnie <minnie@sankhe.com>

src/git-command-manager.ts

@@ -41,6 +41,7 @@ export interface IGitCommandManager {
   submoduleForeach(command: string, recursive: boolean): Promise<string>
   submoduleSync(recursive: boolean): Promise<void>
   submoduleUpdate(fetchDepth: number, recursive: boolean): Promise<void>
+  submoduleStatus(): Promise<boolean>
   tagExists(pattern: string): Promise<boolean>
   tryClean(): Promise<boolean>
   tryConfigUnset(configKey: string, globalConfig?: boolean): Promise<boolean>
@@ -357,6 +358,12 @@ class GitCommandManager {
     await this.execGit(args)
   }
 
+  async submoduleStatus(): Promise<boolean> {
+    const output = await this.execGit(['submodule', 'status'], true)
+    core.debug(output.stdout)
+    return output.exitCode === 0
+  }
+
   async tagExists(pattern: string): Promise<boolean> {
     const output = await this.execGit(['tag', '--list', pattern])
     return !!output.stdout.trim()

src/git-directory-helper.ts

@@ -81,6 +81,12 @@ export async function prepareExistingDirectory(
       }
       core.endGroup()
 
+      // Check for submodules and delete any existing files if submodules are present
+      if (!(await git.submoduleStatus())) {
+        remove = true
+        core.info('Bad Submodules found, removing existing files')
+      }
+
       // Clean
       if (clean) {
         core.startGroup('Cleaning the repository')