feat: support <pattern> for git-for-each-ref (git_branches) (#1248)

doc/telescope.txt

@@ -812,6 +812,7 @@ builtin.git_branches({opts})                          *builtin.git_branches()*
         {cwd}          (string)   specify the path of the repo
         {use_git_root} (boolean)  if we should use git root as cwd or the cwd
                                   (important for submodule) (default: true)
+        {pattern}      (string)   specify the pattern to match all refs
 
 
 builtin.git_status({opts})                              *builtin.git_status()*

lua/telescope/builtin/git.lua

@@ -195,7 +195,10 @@ git.branches = function(opts)
     .. "%(authorname)"
     .. "%(upstream:lstrip=2)"
     .. "%(committerdate:format-local:%Y/%m/%d %H:%M:%S)"
-  local output = utils.get_os_command_output({ "git", "for-each-ref", "--perl", "--format", format }, opts.cwd)
+  local output = utils.get_os_command_output(
+    { "git", "for-each-ref", "--perl", "--format", format, opts.pattern },
+    opts.cwd
+  )
 
   local results = {}
   local widths = {

lua/telescope/builtin/init.lua

@@ -182,6 +182,7 @@ builtin.git_bcommits = require_on_exported_call("telescope.builtin.git").bcommit
 ---@param opts table: options to pass to the picker
 ---@field cwd string: specify the path of the repo
 ---@field use_git_root boolean: if we should use git root as cwd or the cwd (important for submodule) (default: true)
+---@field pattern string: specify the pattern to match all refs
 builtin.git_branches = require_on_exported_call("telescope.builtin.git").branches
 
 --- Lists git status for current directory