Fix git committer identity (#2092)

 > [!NOTE] > Ensures native Git commits correctly set both author and committer identities. > > - Add `withGitAuthor` to prepend `-c user.name=...` and `-c user.email=...` to git args using settings-derived author > - Update `gitCommit` (native path) to replace `--author` with `withGitAuthor([..."commit", "-m", message])`, preserving `--amend` handling and commit hash retrieval > > <sup>Written by [Cursor Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit 67b33e2c2165ae9ebd84549abf8129d9bd9c6bef. This will update automatically on new commits. Configure [here](https://cursor.com/dashboard?tab=bugbot).</sup>   ## Summary by cubic Fixes incorrect Git committer identity when creating commits with native Git. We now set user.name and user.email via -c flags so both author and committer match app settings. - **Bug Fixes** - Added withGitAuthor to prepend -c user.name and -c user.email to git args. - Updated gitCommit to use withGitAuthor instead of --author (works with --amend). <sup>Written for commit 67b33e2c2165ae9ebd84549abf8129d9bd9c6bef. Summary will update on new commits.</sup>

Fix git committer identity (#2092)
3646afbe · Will Chen · GitHub · a5e191f1 · 3646afbe
--- a/src/ipc/utils/git_utils.ts
+++ b/src/ipc/utils/git_utils.ts
@@ -42,6 +42,27 @@ async function execOrThrow(
  }
 }

+/**
+ * Prepends git config args for user.name and user.email to the provided args.
+ * Automatically fetches the git author from settings.
+ * Usage: await withGitAuthor(["commit", "-m", "message"])
+ * Returns: ["-c", "user.name=...", "-c", "user.email=...", "commit", "-m", "message"]
+ *
+ * Do NOT do "--author" because this does not set the committer identity.
+ *
+ * Doing -c user.name/email sets both the committer and author identity.
+ */
+export async function withGitAuthor(args: string[]): Promise<string[]> {
+  const author = await getGitAuthor();
+  return [
+    "-c",
+    `user.name=${author.name}`,
+    "-c",
+    `user.email=${author.email}`,
+    ...args,
+  ];
+}
+
 export async function getCurrentCommitHash({
  path,
  ref = "HEAD",
@@ -95,19 +116,12 @@ export async function gitCommit({
 }: GitCommitParams): Promise<string> {
  const settings = readSettings();
  if (settings.enableNativeGit) {
-    // Get author info to match isomorphic-git behavior
-    const author = await getGitAuthor();
-    // Perform the commit using dugite with --author flag
-    const args = [
-      "commit",
-      "-m",
-      message,
-      "--author",
-      `${author.name} <${author.email}>`,
-    ];
+    // Perform the commit using dugite with -c user.name/email config
+    const commitArgs = ["commit", "-m", message];
    if (amend) {
-      args.push("--amend");
+      commitArgs.push("--amend");
    }
+    const args = await withGitAuthor(commitArgs);
    await execOrThrow(args, path, "Failed to create commit");
    // Get the new commit hash
    const result = await exec(["rev-parse", "HEAD"], path);