From 3843163e2e1202f12486edb22eb545170b806630 Mon Sep 17 00:00:00 2001
From: Johannes Altmanninger <aclopte@gmail.com>
Date: Fri, 31 Dec 2021 09:26:49 +0100
Subject: [PATCH] rc mail: enable jumping from inline diff to source file

This allows to jump from a mail buffer that contains an inline diff
to the source files (most accurate when the patch has been applied
locally).

This makes the diff module a mandatory dependency; we could relax that.
---
 rc/filetype/mail.kak | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/rc/filetype/mail.kak b/rc/filetype/mail.kak
index c99bd68f..9fb2d14e 100644
--- a/rc/filetype/mail.kak
+++ b/rc/filetype/mail.kak
@@ -4,6 +4,10 @@ hook global BufCreate .+\.eml %{
 
 hook global WinSetOption filetype=mail %{
     require-module mail
+    map buffer normal <ret> %{: diff-jump<ret>}
+    hook -once -always window WinSetOption filetype=.* %{
+        unmap buffer normal <ret> %{: diff-jump<ret>}
+    }
 }
 
 hook -group mail-highlight global WinSetOption filetype=mail %{
@@ -14,6 +18,8 @@ hook -group mail-highlight global WinSetOption filetype=mail %{
 
 provide-module mail %{
 
+require-module diff
+
 add-highlighter shared/mail group
 add-highlighter shared/mail/ regex ^(From|To|Cc|Bcc|Subject|Reply-To|In-Reply-To|References|Date):([^\n]*(?:\n\h+[^\n]+)*)$ 1:keyword 2:attribute
 add-highlighter shared/mail/ regex <[^@>]+@.*?> 0:string