feat: add more info to VimtexInfo

refer: lervag#3142

Author: lervag

autoload/vimtex/info.vim

@@ -39,6 +39,7 @@ function! s:info.gather_system_info() abort dict " {{{1
   let l:lines = [
         \ 'System info:',
         \ '  OS: ' . s:get_os_info(),
+        \ '  LaTeX version: ' . s:get_latex_info(),
         \ '  Vim version: ' . s:get_vim_info(),
         \]
 
@@ -50,6 +51,11 @@ function! s:info.gather_system_info() abort dict " {{{1
     call add(l:lines, '  Has clientserver: false')
   endif
 
+  call add(l:lines, '  $PATH:')
+  for l:path in uniq(sort(split($PATH, '[:;]')))
+    call add(l:lines, '    - ' .. l:path)
+  endfor
+
   return l:lines
 endfunction
 
@@ -207,6 +213,15 @@ function! s:get_os_info() abort " {{{1
   endif
 endfunction
 
+" }}}1
+function! s:get_latex_info() abort " {{{1
+  let l:result = executable('latex')
+      \ ? vimtex#jobs#capture('latex --version')[0]
+      \ : 'LATEX WAS NOT FOUND!'
+
+  return l:result
+endfunction
+
 " }}}1
 function! s:get_vim_info() abort " {{{1
   let l:info = vimtex#util#command('version')