Support msys2 (path format)

[q962]

Because msys simulates the linux environment, the path format used in msys is the same as the linux path format.

But there is a path conversion tool in msys2
cygpath -m /home/name/path => D:/msys64_install_path/home/name/path

just need to slightly modified

let fullpath = fnamemodify(bufname, ':p')
if has_key(environ(), 'MSYSTEM')
  " cygpath returns results containing \n
  let fullpath = system("cygpath -m " . fullpath)[0:-2]
endif
"...

'fullpath': empty(bufname) ? '' : fullpath,

About the MSYSTEM ：https://www.msys2.org/docs/environments/

[q962]

Local validation is correct. Ability to open include files correctly

Before modification, 'd:' will be added before the original path, resulting in a wrong path

For example: D:\home\name\path

[q962]

Are there any other files besides utils that involve path?

diff --git a/autoload/coc/util.vim b/autoload/coc/util.vim
index 95f5fe1..37c4a9b 100644
--- a/autoload/coc/util.vim
+++ b/autoload/coc/util.vim
@@ -3,6 +3,12 @@ let s:root = expand('<sfile>:h:h:h')
 let s:is_win = has('win32') || has('win64')
 let s:is_vim = !has('nvim')
 let s:vim_api_version = 28
+let s:is_msys = has_key(environ(), 'MSYSTEM')
+let s:root_path = ""
+if s:is_msys
+  " remove '/\n'
+  let s:root_path = system('cygpath -m /')[0:-3]
+endif
 
 function! coc#util#api_version() abort
   return s:vim_api_version
@@ -33,10 +39,20 @@ function! coc#util#jumpTo(line, character) abort
   call coc#cursor#move_to(a:line, a:character)
 endfunction
 
+function! coc#util#path_conversion(path) abort
+  if s:is_msys
+     " remove '\n'
+      let path = system("cygpath -m " . a:path)[0:-2]
+  endif
+  " echom 'cygpath@'. path
+  return path
+endfunction
+
+
 function! coc#util#path_replace_patterns() abort
   if has('win32unix') && exists('g:coc_cygqwin_path_prefixes')
-    echohl WarningMsg 
-    echon 'g:coc_cygqwin_path_prefixes is deprecated, use g:coc_uri_prefix_replace_patterns instead' 
+    echohl WarningMsg
+    echon 'g:coc_cygqwin_path_prefixes is deprecated, use g:coc_uri_prefix_replace_patterns instead'
     echohl None
     return g:coc_cygqwin_path_prefixes
   endif
@@ -249,7 +265,7 @@ function! coc#util#get_bufoptions(bufnr) abort
         \ 'filetype': getbufvar(a:bufnr, '&filetype'),
         \ 'iskeyword': getbufvar(a:bufnr, '&iskeyword'),
         \ 'changedtick': getbufvar(a:bufnr, 'changedtick'),
-        \ 'fullpath': empty(bufname) ? '' : fnamemodify(bufname, ':p'),
+        \ 'fullpath': empty(bufname) ? '' : coc#util#path_conversion(fnamemodify(bufname, ':p')),
         \}
 endfunction
 
@@ -299,7 +315,7 @@ function! coc#util#preview_info(info, filetype, ...) abort
   wincmd p
 endfunction
 
-function! coc#util#get_config_home()
+function! s:get_config_home()
   if !empty(get(g:, 'coc_config_home', ''))
       return resolve(expand(g:coc_config_home))
   endif
@@ -322,6 +338,10 @@ function! coc#util#get_config_home()
   endif
 endfunction
 
+function! coc#util#get_config_home()
+  return coc#util#path_conversion(s:get_config_home())
+endfunction
+
 function! coc#util#get_data_home()
   if !empty(get(g:, 'coc_data_home', ''))
     let dir = resolve(expand(g:coc_data_home))
@@ -336,6 +356,7 @@ function! coc#util#get_data_home()
       endif
     endif
   endif
+  let dir = coc#util#path_conversion(dir)
   if !isdirectory(dir)
     call coc#float#create_notification(['creating data directory: '.dir], {'timeout': 2000})
     call mkdir(dir, "p", 0755)
@@ -364,7 +385,7 @@ function! coc#util#get_complete_option()
         \ 'input': empty(input) ? '' : input,
         \ 'line': line,
         \ 'filetype': &filetype,
-        \ 'filepath': expand('%:p'),
+        \ 'filepath': coc#util#path_conversion(expand('%:p')),
         \ 'bufnr': bufnr('%'),
         \ 'linenr': pos[1],
         \ 'colnr' : pos[2],
@@ -536,6 +557,8 @@ function! coc#util#getpid()
 endfunction
 
 function! coc#util#vim_info()
+  let l:runtimepath = join(map(globpath(&runtimepath, "", 0, 1), {key,path->s:root_path.path}), ',')
+
   return {
         \ 'apiversion': s:vim_api_version,
         \ 'mode': mode(),
@@ -558,9 +581,9 @@ function! coc#util#vim_info()
         \ 'colorscheme': get(g:, 'colors_name', ''),
         \ 'workspaceFolders': get(g:, 'WorkspaceFolders', v:null),
         \ 'background': &background,
-        \ 'runtimepath': join(globpath(&runtimepath, '', 0, 1), ','),
+        \ 'runtimepath': l:runtimepath,
         \ 'locationlist': get(g:,'coc_enable_locationlist', 1),
-        \ 'progpath': v:progpath,
+        \ 'progpath': coc#util#path_conversion(v:progpath),
         \ 'guicursor': &guicursor,
         \ 'tabCount': tabpagenr('$'),
         \ 'updateHighlight': has('nvim-0.5.0') || has('patch-8.1.1719') ? v:true : v:false,

[ducklin5]

Yes! please can we do this. I've just realized that my cygwin coc-settings.json was not taking effect because although I was running vim from cygwin, (and :CocConfig opens up ~/.vim/coc-settings.json from cygwin); the config coc currently uses is athe the windows path: C:/Users/me/.vim/coc-settings.json. Msys and Cygwin have separated a home directory from the windows directory. I believe this change should fix the issue.

[q962]

Of course, it's just that I don't know if I have modified all the path-related functions (all in utils.vim), which needs to be confirmed by the developer. Although I use normal :)