From cd870a26189555cfa57dd40a95de5704a9fa1dce Mon Sep 17 00:00:00 2001
From: Meghan Denny <hello@nektro.net>
Date: Thu, 25 Jun 2026 15:55:25 -0700
Subject: [PATCH] getHEAD: handle zero commits

---
 git.zig | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/git.zig b/git.zig
index 18431d0c642a4e9c318d8136326abc824e51c151..f592fef0082b87ccd1cf07c3de8e5c436fcedd08 100644
--- a/git.zig
+++ b/git.zig
@@ -71,12 +71,14 @@ pub fn version(alloc: std.mem.Allocator) !string {
 
 /// Returns the result of running `git rev-parse HEAD`
 /// dir must already be pointing at the .git folder
-// TODO this doesnt handle when there are 0 commits
 pub fn getHEAD(alloc: std.mem.Allocator, dir: nfs.Dir) !?CommitId {
     const t = tracer.trace(@src(), "", .{});
     defer t.end();
 
-    const headfile = try dir.readFileAlloc(alloc, "HEAD", 1024);
+    const headfile = dir.readFileAlloc(alloc, "HEAD", 1024) catch |err| switch (err) {
+        error.ENOENT => return null,
+        else => |e| return e,
+    };
     defer alloc.free(headfile);
     const h = std.mem.trimEnd(u8, headfile, "\n");
 
-- 
2.54.0