feat(rewrite): print updated names in reference-transaction

CHANGELOG.md

@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 - Added: `git move` now supports forcing an in-memory rebase with the `--in-memory` flag.
+- Added: The `reference-transaction` hook prints out which references were updated.
 - Fixed: `git move` preserves committer timestamps when `branchless.restack.preserveTimestamps` is set. The configuration key may change in the future.
 - Fixed: The output of `git` subcommands is streamed to stdout, rather than accumulated and dumped at the end.
 - Fixed: Commits rebased in-memory by `git move` are now marked as reachable by the Git garbage collector, so that they aren't collected prematurely.

src/commands/hooks.rs

@@ -352,8 +352,25 @@ pub fn hook_reference_transaction(transaction_state: &str) -> anyhow::Result<()>
         plural: "updates to branches/refs",
     };
     println!(
-        "branchless: processing {}",
-        num_reference_updates.to_string()
+        "branchless: processing {} {}",
+        num_reference_updates.to_string(),
+        console::style(format!(
+            "({})",
+            events
+                .iter()
+                .filter_map(|event| {
+                    match event {
+                        Event::RefUpdateEvent { ref_name, .. } => Some(ref_name.to_string_lossy()),
+                        Event::RewriteEvent { .. }
+                        | Event::CommitEvent { .. }
+                        | Event::HideEvent { .. }
+                        | Event::UnhideEvent { .. } => None,
+                    }
+                })
+                .collect::<Vec<_>>()
+                .join(", ")
+        ))
+        .green(),
     );
     event_log_db.add_events(events)?;
 

src/git/run.rs

@@ -238,11 +238,11 @@ mod tests {
             // Trigger the `post-rewrite` hook that we wrote above.
             let (stdout, stderr) = git.run(&["commit", "--amend", "-m", "foo"])?;
             insta::assert_snapshot!(stderr, @r###"
-                branchless: processing 2 updates to branches/refs
-                branchless: processing commit
-                Contents of test1.txt:
-                test1 contents
-                "###);
+            branchless: processing 2 updates to branches/refs (HEAD, refs/heads/master)
+            branchless: processing commit
+            Contents of test1.txt:
+            test1 contents
+            "###);
             insta::assert_snapshot!(stdout, @r###"
                 [master f23bf8f] foo
                  Date: Thu Oct 29 12:34:56 2020 -0100

tests/command/test_move.rs

@@ -226,12 +226,12 @@ fn test_move_with_source_not_in_smartlog_in_memory() -> anyhow::Result<()> {
             &test1_oid.to_string(),
         ])?;
         insta::assert_snapshot!(stdout, @r###"
-            Attempting rebase in-memory...
-            branchless: processing 1 update to a branch/ref
-            branchless: processing 2 rewritten commits
-            branchless: <git-executable> checkout master
-            In-memory rebase succeeded.
-            "###);
+        Attempting rebase in-memory...
+        branchless: processing 1 update to a branch/ref (master)
+        branchless: processing 2 rewritten commits
+        branchless: <git-executable> checkout master
+        In-memory rebase succeeded.
+        "###);
     }
 
     {
@@ -392,12 +392,12 @@ fn test_move_branch() -> anyhow::Result<()> {
     {
         let (stdout, _stderr) = git.run(&["move", "-d", &test2_oid.to_string()])?;
         insta::assert_snapshot!(stdout, @r###"
-            Attempting rebase in-memory...
-            branchless: processing 1 update to a branch/ref
-            branchless: processing 1 rewritten commit
-            branchless: <git-executable> checkout master
-            In-memory rebase succeeded.
-            "###);
+        Attempting rebase in-memory...
+        branchless: processing 1 update to a branch/ref (master)
+        branchless: processing 1 rewritten commit
+        branchless: <git-executable> checkout master
+        In-memory rebase succeeded.
+        "###);
     }
 
     {
@@ -438,7 +438,7 @@ fn test_move_base_onto_head() -> anyhow::Result<()> {
         let (stdout, stderr) = git.run(&["move", "-b", "HEAD"])?;
         insta::assert_snapshot!(stderr, @r###"
         Previous HEAD position was 70deb1e create test3.txt
-        branchless: processing 1 update to a branch/ref
+        branchless: processing 1 update to a branch/ref (HEAD)
         HEAD is now at a45568b create test3.txt
         branchless: processing checkout
         "###);
@@ -570,7 +570,7 @@ fn test_move_in_memory_gc() -> anyhow::Result<()> {
         let (stdout, stderr) = git.run(&["move", "-d", "master", "--in-memory"])?;
         insta::assert_snapshot!(stderr, @r###"
         Previous HEAD position was 96d1c37 create test2.txt
-        branchless: processing 1 update to a branch/ref
+        branchless: processing 1 update to a branch/ref (HEAD)
         HEAD is now at fe65c1f create test2.txt
         branchless: processing checkout
         "###);

tests/command/test_restack.rs

@@ -124,7 +124,7 @@ fn test_move_abandoned_branch() -> anyhow::Result<()> {
         let stdout = remove_rebase_lines(stdout);
         insta::assert_snapshot!(stdout, @r###"
         No abandoned commits to restack.
-        branchless: processing 1 update to a branch/ref
+        branchless: processing 1 update to a branch/ref (master)
         Finished restacking branches.
         branchless: <git-executable> checkout 662b451fb905b92404787e024af717ced49e3045
         :
@@ -168,7 +168,7 @@ fn test_amended_initial_commit() -> anyhow::Result<()> {
         Calling Git for on-disk rebase...
         branchless: <git-executable> rebase --continue
         Finished restacking commits.
-        branchless: processing 1 update to a branch/ref
+        branchless: processing 1 update to a branch/ref (master)
         Finished restacking branches.
         branchless: <git-executable> checkout 9a9f929a0d4f052ff5d58bedd97b2f761120f8ed
         @ 9a9f929a new initial commit
@@ -204,7 +204,7 @@ fn test_restack_amended_master() -> anyhow::Result<()> {
         Calling Git for on-disk rebase...
         branchless: <git-executable> rebase --continue
         Finished restacking commits.
-        branchless: processing 1 update to a branch/ref
+        branchless: processing 1 update to a branch/ref (master)
         Finished restacking branches.
         branchless: <git-executable> checkout ae94dc2a748bc0965c88fcf3edac2e30074ff7e2
         :