From cc606adb36cfb96d1714d81804691f000b28fe1c Mon Sep 17 00:00:00 2001
From: kam-hak <kah411@pitt.edu>
Date: Sun, 5 Apr 2026 11:52:10 -0400
Subject: [PATCH] feat: reload edited buffer after Claude writes to disk
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Fires checktime on the buffer matching the edited file so changes
appear without requiring focus/blur. Runs regardless of diff state
(visible_only mode, manually-closed tab, etc) — Claude wrote the
file whether or not a preview was shown.

Iterates nvim_list_bufs() and compares canonical paths (fs_realpath)
instead of vim.fn.bufnr(), which does partial+regex matching on
buffer names and mis-matches paths containing regex metacharacters
(e.g. /tmp/foo[1].md).
---
 bin/claude-close-diff.sh | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/bin/claude-close-diff.sh b/bin/claude-close-diff.sh
index 6278502..923f554 100755
--- a/bin/claude-close-diff.sh
+++ b/bin/claude-close-diff.sh
@@ -20,11 +20,22 @@ if [[ "$TOOL_NAME" == "Bash" ]]; then
   exit 0
 fi
 
-# Only clean up if a diff was actually open
+FILE_PATH="$(echo "$INPUT" | jq -r '.tool_input.file_path // empty' 2>/dev/null || true)"
+
+# Reload nvim buffer Claude edited to display changes without refocus, other open buffers not affected.
+# Runs regardless of diff state — Claude wrote the file whether or not a preview was shown.
+# Iterate vim.api.nvim_list_bufs() and compare canonical paths instead of using vim.fn.bufnr(path),
+# which does partial+regex matching on buffer names and mis-matches paths containing regex
+# metacharacters (e.g. /tmp/foo[1].md).
+if [[ -n "$FILE_PATH" ]]; then
+  FILE_PATH_ESC="$(escape_lua "$FILE_PATH")"
+  nvim_send "local target = vim.uv.fs_realpath('$FILE_PATH_ESC') or vim.fn.fnamemodify('$FILE_PATH_ESC', ':p') for _, b in ipairs(vim.api.nvim_list_bufs()) do local n = vim.api.nvim_buf_get_name(b) if n ~= '' then local name = vim.uv.fs_realpath(n) or vim.fn.fnamemodify(n, ':p') if name == target then vim.api.nvim_buf_call(b, function() vim.cmd('checktime ' .. b) end) break end end end" || true
+fi
+
+# Only clean up diff UI if a diff was actually open
 DIFF_OPEN=$(nvim --server "$NVIM_SOCKET" --remote-expr "luaeval(\"require('claude-preview.diff').is_open()\")" 2>/dev/null || echo "false")
 
 if [[ "$DIFF_OPEN" == "true" ]]; then
-  FILE_PATH="$(echo "$INPUT" | jq -r '.tool_input.file_path // empty' 2>/dev/null || true)"
   nvim_send "require('claude-preview.changes').clear_all()" || true
   nvim_send "require('claude-preview.diff').close_diff()" || true
   if [[ -n "$FILE_PATH" ]]; then