From ad5df55159bc8bbb349aed4ce364c0e1052a3296 Mon Sep 17 00:00:00 2001
From: Alfonso Ros <alfonsoros88@gmail.com>
Date: Wed, 14 Dec 2022 19:44:57 +0100
Subject: [PATCH] fix: use fugitive functions to parse fugitive:// url

Fixes #686
---
 lua/gitsigns.lua  | 15 ++++++++-------
 teal/gitsigns.tl  | 17 +++++++++--------
 types/vim.d.tl    |  1 +
 types/vim/fn.d.tl |  3 +++
 4 files changed, 21 insertions(+), 15 deletions(-)

diff --git a/lua/gitsigns.lua b/lua/gitsigns.lua
index 291f4f1d..5ba7491a 100644
--- a/lua/gitsigns.lua
+++ b/lua/gitsigns.lua
@@ -74,17 +74,18 @@ M.detach = function(bufnr, _keep_signs)
 end
 
 local function parse_fugitive_uri(name)
-   local _, _, root_path, sub_module_path, commit, real_path = 
-   name:find([[^fugitive://(.*)/%.git(.*/)/(%x-)/(.*)]])
+   if vim.g.loaded_fugitive == 0 then
+      return
+   end
+   local path = vim.fn.FugitiveReal(name)
+   local result = vim.fn.FugitiveParse(name)
+   local commit = result[1]:match('([^:]+):.*')
    if commit == '0' then
 
       commit = nil
    end
-   if root_path then
-      sub_module_path = sub_module_path:gsub("^/modules", "")
-      name = root_path .. sub_module_path .. real_path
-   end
-   return name, commit
+
+   return path, commit
 end
 
 local function parse_gitsigns_uri(name)
diff --git a/teal/gitsigns.tl b/teal/gitsigns.tl
index e6fa1b47..7d1a00b3 100644
--- a/teal/gitsigns.tl
+++ b/teal/gitsigns.tl
@@ -74,17 +74,18 @@ M.detach = function(bufnr: integer, _keep_signs: boolean)
 end
 
 local function parse_fugitive_uri(name: string): string, string
-  local _, _, root_path, sub_module_path, commit, real_path =
-    name:find([[^fugitive://(.*)/%.git(.*/)/(%x-)/(.*)]])
+  if vim.g.loaded_fugitive == 0 then
+    return
+  end
+  local path = vim.fn.FugitiveReal(name)
+  local result = vim.fn.FugitiveParse(name)
+  local commit = result[1]:match('([^:]+):.*')
   if commit == '0' then
-    -- '0' means the index so cleat commit so we attach normally
+    -- '0' means the index so clear commit so we attach normally
     commit = nil
   end
-  if root_path then
-    sub_module_path = sub_module_path:gsub("^/modules", "")
-    name = root_path .. sub_module_path .. real_path
-  end
-  return name, commit
+
+  return path, commit
 end
 
 local function parse_gitsigns_uri(name: string): string, string
diff --git a/types/vim.d.tl b/types/vim.d.tl
index 47e46301..727aafa1 100644
--- a/types/vim.d.tl
+++ b/types/vim.d.tl
@@ -85,6 +85,7 @@ local record M
 
   record g
     gitsigns_head: string
+    loaded_fugitive: integer
   end
 
   record v
diff --git a/types/vim/fn.d.tl b/types/vim/fn.d.tl
index acbedc7f..7b709d36 100644
--- a/types/vim/fn.d.tl
+++ b/types/vim/fn.d.tl
@@ -74,6 +74,9 @@ local record M
   systemlist: function({string}): {string}
   tempname: function(): string
   type: function(any): integer
+
+  FugitiveReal: function(...: any): string
+  FugitiveParse: function(...: any): {string, string}
 end
 
 return M