From b38b6ff12c8459466a2ad7ee4da0e22afe64032a Mon Sep 17 00:00:00 2001
From: Michael Sloan <michael@zed.dev>
Date: Tue, 12 Aug 2025 01:11:05 -0600
Subject: [PATCH] agent checkpoint dbgs

---
 crates/agent/src/thread.rs   |  8 +++++++-
 crates/git/src/repository.rs | 16 +++++++++++++++-
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/crates/agent/src/thread.rs b/crates/agent/src/thread.rs
index 20d482f60d..b6f01ab278 100644
--- a/crates/agent/src/thread.rs
+++ b/crates/agent/src/thread.rs
@@ -813,6 +813,7 @@ impl Thread {
     }
 
     fn finalize_pending_checkpoint(&mut self, cx: &mut Context<Self>) {
+        dbg!("finalize_pending_checkpoint");
         let pending_checkpoint = if self.is_generating() {
             return;
         } else if let Some(checkpoint) = self.pending_checkpoint.take() {
@@ -829,10 +830,13 @@ impl Thread {
         pending_checkpoint: ThreadCheckpoint,
         cx: &mut Context<Self>,
     ) {
+        dbg!("finalize_checkpoint");
         let git_store = self.project.read(cx).git_store().clone();
         let final_checkpoint = git_store.update(cx, |git_store, cx| git_store.checkpoint(cx));
         cx.spawn(async move |this, cx| match final_checkpoint.await {
             Ok(final_checkpoint) => {
+                dbg!(&pending_checkpoint.git_checkpoint);
+                dbg!(&final_checkpoint);
                 let equal = git_store
                     .update(cx, |store, cx| {
                         store.compare_checkpoints(
@@ -844,7 +848,7 @@ impl Thread {
                     .await
                     .unwrap_or(false);
 
-                if !equal {
+                if dbg!(!equal) {
                     this.update(cx, |this, cx| {
                         this.insert_checkpoint(pending_checkpoint, cx)
                     })?;
@@ -860,6 +864,7 @@ impl Thread {
     }
 
     fn insert_checkpoint(&mut self, checkpoint: ThreadCheckpoint, cx: &mut Context<Self>) {
+        dbg!("insert_checkpoint");
         self.checkpoints_by_message
             .insert(checkpoint.message_id, checkpoint);
         cx.emit(ThreadEvent::CheckpointChanged);
@@ -867,6 +872,7 @@ impl Thread {
     }
 
     pub fn last_restore_checkpoint(&self) -> Option<&LastRestoreCheckpoint> {
+        dbg!();
         self.last_restore_checkpoint.as_ref()
     }
 
diff --git a/crates/git/src/repository.rs b/crates/git/src/repository.rs
index 518b6c4f46..8a9658c527 100644
--- a/crates/git/src/repository.rs
+++ b/crates/git/src/repository.rs
@@ -1492,13 +1492,19 @@ impl GitRepository for RealGitRepository {
                     let mut excludes = exclude_files(git).await?;
 
                     git.run(&["add", "--all"]).await?;
-                    let tree = git.run(&["write-tree"]).await?;
+                    dbg!("added all files");
+                    let tree = git.run(&["write-tree"]).await;
+                    dbg!(&tree);
+                    let tree = tree?;
                     let checkpoint_sha = if let Some(head_sha) = head_sha.as_deref() {
+                        dbg!(&["git", "commit-tree", &tree, "-p", head_sha, "-m", "Checkpoint"]));
                         git.run(&["commit-tree", &tree, "-p", head_sha, "-m", "Checkpoint"])
                             .await?
                     } else {
+                        dbg!(&["git", "commit-tree", &tree, "-m", "Checkpoint"]);
                         git.run(&["commit-tree", &tree, "-m", "Checkpoint"]).await?
                     };
+                    dbg!(&checkpoint_sha);
 
                     excludes.restore_original().await?;
 
@@ -1551,6 +1557,8 @@ impl GitRepository for RealGitRepository {
         left: GitRepositoryCheckpoint,
         right: GitRepositoryCheckpoint,
     ) -> BoxFuture<'_, Result<bool>> {
+        // todo! fail or short circuit
+
         let working_directory = self.working_directory();
         let git_binary_path = self.git_binary_path.clone();
 
@@ -1559,6 +1567,11 @@ impl GitRepository for RealGitRepository {
             .spawn(async move {
                 let working_directory = working_directory?;
                 let git = GitBinary::new(git_binary_path, working_directory, executor);
+                log::error!(
+                    "git diff-tree --quiet {} {}",
+                    left.commit_sha,
+                    right.commit_sha
+                );
                 let result = git
                     .run(&[
                         "diff-tree",
@@ -1567,6 +1580,7 @@ impl GitRepository for RealGitRepository {
                         &right.commit_sha.to_string(),
                     ])
                     .await;
+                dbg!(&result);
                 match result {
                     Ok(_) => Ok(true),
                     Err(error) => {