feat(deploy): ✨ copy local git config to tmp repo

this allows users to maintain any specific settings that aren't global

packages/docusaurus/src/commands/deploy.ts

@@ -183,6 +183,9 @@ You can also set the deploymentBranch property in docusaurus.config.js .`);
   // Save the commit hash that triggers publish-gh-pages before checking
   // out to deployment branch.
   const currentCommit = shellExecLog('git rev-parse HEAD').stdout.trim();
+  const currentGitRootDir = shellExecLog(
+    'git rev-parse --show-toplevel',
+  ).stdout.trim();
 
   const runDeploy = async (outputDirectory: string) => {
     const fromPath = outputDirectory;
@@ -213,6 +216,16 @@ You can also set the deploymentBranch property in docusaurus.config.js .`);
       logger.error`Copying build assets from path=${fromPath} to path=${toPath} failed.`;
       throw err;
     }
+
+    const gitConfigFromPath = path.join(currentGitRootDir, `.git`, `config`);
+    const gitConfigToPath = path.join(toPath, `.git`, `config`);
+    try {
+      await fs.copy(gitConfigFromPath, gitConfigToPath);
+    } catch (err) {
+      logger.error`Copying git config from path=${gitConfigFromPath} to path=${gitConfigToPath} failed.`;
+      throw err;
+    }
+
     shellExecLog('git add --all');
 
     const commitMessage =