Added handling for fugitive buffers in asyncrun#fullname() function

plugin/asyncrun.vim

@@ -1,9 +1,9 @@
 " asyncrun.vim - Run shell commands in background and output to quickfix
 "
-" Maintainer: skywind3000 (at) gmail.com, 2016-2023
+" Maintainer: skywind3000 (at) gmail.com, 2016-2024
 " Homepage: https://github.com/skywind3000/asyncrun.vim
 "
-" Last Modified: 2023/09/25 23:19
+" Last Modified: 2024/02/16 11:36
 "
 " Run shell command in background and output to quickfix:
 "     :AsyncRun[!] [options] {cmd} ...
@@ -1083,7 +1083,9 @@ function! asyncrun#fullname(f)
 			let f = ''
 		elseif &bt != ''
 			let is_directory = 0
-			if f =~ '[\/\\]$'
+			if f =~ '\v^fugitive\:[\\\/][\\\/][\\\/]'
+				return asyncrun#fullname(f)
+			elseif f =~ '[\/\\]$'
 				if f =~ '^[\/\\]' || f =~ '^.:[\/\\]'
 					let is_directory = isdirectory(f)
 				endif
@@ -1092,6 +1094,13 @@ function! asyncrun#fullname(f)
 		endif
 	elseif f =~ '^\~[\/\\]'
 		let f = expand(f)
+	elseif f =~ '\v^fugitive\:[\\\/][\\\/][\\\/]'
+		let path = strpart(f, s:asyncrun_windows? 12 : 11)
+		let pos = stridx(path, '.git')
+		if pos >= 0
+			let path = strpart(path, 0, pos)
+		endif
+		let f = fnamemodify(path, ':h')
 	endif
 	let f = fnamemodify(f, ':p')
 	if s:asyncrun_windows
@@ -1139,12 +1148,6 @@ endfunc
 " guess root
 function! s:guess_root(filename, markers)
 	let fullname = asyncrun#fullname(a:filename)
-	if fullname =~ '^fugitive:/'
-		if exists('b:git_dir')
-			return fnamemodify(b:git_dir, ':h')
-		endif
-		return '' " skip any fugitive buffers early
-	endif
 	let pivot = fullname
 	if !isdirectory(pivot)
 		let pivot = fnamemodify(pivot, ':h')
@@ -2295,7 +2298,7 @@ endfunc
 " asyncrun - version
 "----------------------------------------------------------------------
 function! asyncrun#version()
-	return '2.12.2'
+	return '2.12.3'
 endfunc