From 578c5f15dfaeca9841dee85e44001216376bb9ca Mon Sep 17 00:00:00 2001
From: NicolasGB <ngou0210@gmail.com>
Date: Sat, 4 Apr 2026 15:45:19 +0200
Subject: [PATCH] feat(diff): Now diff command supports `<rev1>..<rev2>` format

---
 lua/jj/cmd/init.lua | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/lua/jj/cmd/init.lua b/lua/jj/cmd/init.lua
index b1bdf69..62c17b7 100644
--- a/lua/jj/cmd/init.lua
+++ b/lua/jj/cmd/init.lua
@@ -1254,7 +1254,20 @@ function M.j(args)
 			require("jj.cmd.split").split(opts)
 		end,
 		diff = function()
-			M.diff({ current = false })
+			if remaining_args_str == "" then
+				M.diff({ current = false })
+			else
+				local parts = parser.parse_diff_range(remaining_args_str)
+				utils.notify(vim.inspect(parts))
+				if parts then
+					require("jj.diff").diff_revisions({ left = parts.left, right = parts.right })
+				else
+					utils.notify(
+						"Invalid diff range. Format must be `<left>..<right>` or `<left>...<right>`",
+						vim.log.levels.ERROR
+					)
+				end
+			end
 		end,
 		diff_history = function()
 			if remaining_args_str == "" then