feat: sessions per branch. Closes #9

lua/persistence/config.lua

@@ -6,6 +6,7 @@ local defaults = {
   -- minimum number of file buffers that need to be open to save
   -- Set to 0 to always save
   need = 1,
+  branch = true, -- use git branch to save session
 }
 
 ---@type Persistence.Config

lua/persistence/init.lua

@@ -10,6 +10,12 @@ local e = vim.fn.fnameescape
 
 function M.current()
   local name = vim.fn.getcwd():gsub("[\\/:]", "%%")
+  if Config.options.branch then
+    local branch = M.branch()
+    if branch and branch ~= "main" and branch ~= "master" then
+      name = name .. "-" .. branch
+    end
+  end
   return Config.options.dir .. name .. ".vim"
 end
 
@@ -111,4 +117,10 @@ function M.select()
   end)
 end
 
+--- get current branch name
+---@return string?
+function M.branch()
+  return vim.fn.systemlist("git branch --show-current")[1]
+end
+
 return M