1 files changed, 14 insertions(+), 2 deletions(-)

M lua/srht-patches/init.lua

@@ 1,19 1,31 @@
 local Patch = {}
 
--- Check if email is a patch; email is a patch is the subject line contains PATCH
+-- Check if email is a patch; email is a patch if the subject line contains PATCH
 local function check_patch()
-  local result = vim.fn.search("^Subject:.*PATCH.*", "nw")
+  local result = vim.fn.search("^Subject:.*PATCH.*$", "nw")
   if result == 0 then
     return false
   end
   return true
 end
 
+-- Check if header already exists
+local function check_header()
+  local result = vim.fn.search("^X-Sourcehut-Patchset-Update.*$", "nw")
+  return result
+end
+
 local function set_header(status)
   if not check_patch() then
     return
   end
 
+  -- In case the header already exists, delete it
+  local header_position = check_header()
+  if header_position ~= 0 then
+    vim.api.nvim_buf_set_lines(0, header_position - 1, header_position, true, { nil })
+  end
+
   -- Move cursor to file start and save position
   local cursor_position = vim.api.nvim_win_get_cursor(0)
   vim.api.nvim_win_set_cursor(0, { 1, 0 })