From 07c69c1e742caa8139ee115f9027ab3ef13b15df Mon Sep 17 00:00:00 2001
From: Nik Revenco <154856872+NikitaRevenco@users.noreply.github.com>
Date: Mon, 24 Mar 2025 04:00:02 +0000
Subject: [PATCH] fix: update blame when editing config

---
 helix-term/src/application.rs    |  6 ++++++
 helix-term/src/events.rs         |  3 ++-
 helix-term/src/handlers/blame.rs | 24 +++++++++++++++++++++++-
 helix-view/src/events.rs         |  7 ++++++-
 4 files changed, 37 insertions(+), 3 deletions(-)

diff --git a/helix-term/src/application.rs b/helix-term/src/application.rs
index 3bc324395..b97cb29e4 100644
--- a/helix-term/src/application.rs
+++ b/helix-term/src/application.rs
@@ -11,6 +11,7 @@ use helix_view::{
     align_view,
     document::{DocumentOpenError, DocumentSavedEventResult},
     editor::{ConfigEvent, EditorEvent},
+    events::EditorConfigDidChange,
     graphics::Rect,
     theme,
     tree::Layout,
@@ -364,6 +365,11 @@ impl Application {
             // the Application can apply it.
             ConfigEvent::Update(editor_config) => {
                 let mut app_config = (*self.config.load().clone()).clone();
+                helix_event::dispatch(EditorConfigDidChange {
+                    old_config: &app_config.editor,
+                    new_config: &editor_config,
+                    editor: &mut self.editor,
+                });
                 app_config.editor = *editor_config;
                 if let Err(err) = self.terminal.reconfigure(app_config.editor.clone().into()) {
                     self.editor.set_error(err.to_string());
diff --git a/helix-term/src/events.rs b/helix-term/src/events.rs
index 80f045cd7..4e1161d14 100644
--- a/helix-term/src/events.rs
+++ b/helix-term/src/events.rs
@@ -2,7 +2,7 @@ use helix_event::{events, register_event};
 use helix_view::document::Mode;
 use helix_view::events::{
     DiagnosticsDidChange, DocumentDidChange, DocumentDidClose, DocumentDidOpen, DocumentFocusLost,
-    LanguageServerExited, LanguageServerInitialized, SelectionDidChange,
+    EditorConfigDidChange, LanguageServerExited, LanguageServerInitialized, SelectionDidChange,
 };
 
 use crate::commands;
@@ -20,6 +20,7 @@ pub fn register() {
     register_event::<PostCommand>();
     register_event::<DocumentDidOpen>();
     register_event::<DocumentDidChange>();
+    register_event::<EditorConfigDidChange>();
     register_event::<DocumentDidClose>();
     register_event::<DocumentFocusLost>();
     register_event::<SelectionDidChange>();
diff --git a/helix-term/src/handlers/blame.rs b/helix-term/src/handlers/blame.rs
index 6a35859f8..93fdf4e3d 100644
--- a/helix-term/src/handlers/blame.rs
+++ b/helix-term/src/handlers/blame.rs
@@ -4,7 +4,7 @@ use helix_event::register_hook;
 use helix_vcs::FileBlame;
 use helix_view::{
     editor::InlineBlameBehaviour,
-    events::DocumentDidOpen,
+    events::{DocumentDidOpen, EditorConfigDidChange},
     handlers::{BlameEvent, Handlers},
     DocumentId,
 };
@@ -91,4 +91,26 @@ pub(super) fn register_hooks(handlers: &Handlers) {
         }
         Ok(())
     });
+    let tx = handlers.blame.clone();
+    register_hook!(move |event: &mut EditorConfigDidChange<'_>| {
+        if event.old_config.inline_blame.behaviour == InlineBlameBehaviour::Disabled
+            && event.new_config.inline_blame.behaviour != InlineBlameBehaviour::Disabled
+        {
+            // request blame for all documents, since any of them could have
+            // outdated blame
+            for doc in event.editor.documents() {
+                if let Some(path) = doc.path() {
+                    helix_event::send_blocking(
+                        &tx,
+                        BlameEvent {
+                            path: path.to_path_buf(),
+                            doc_id: doc.id(),
+                            line: None,
+                        },
+                    );
+                }
+            }
+        }
+        Ok(())
+    });
 }
diff --git a/helix-view/src/events.rs b/helix-view/src/events.rs
index 89969642b..58881d9ef 100644
--- a/helix-view/src/events.rs
+++ b/helix-view/src/events.rs
@@ -2,7 +2,7 @@ use helix_core::{ChangeSet, Rope};
 use helix_event::events;
 use helix_lsp::LanguageServerId;
 
-use crate::{Document, DocumentId, Editor, ViewId};
+use crate::{editor::Config, Document, DocumentId, Editor, ViewId};
 
 events! {
     DocumentDidOpen<'a> {
@@ -17,6 +17,11 @@ events! {
         changes: &'a ChangeSet,
         ghost_transaction: bool
     }
+    EditorConfigDidChange<'a> {
+        old_config: &'a Config,
+        new_config: &'a Config,
+        editor: &'a mut Editor
+    }
     DocumentDidClose<'a> {
         editor: &'a mut Editor,
         doc: Document