add fish script support (#3033)

autoload/SpaceVim/layers/edit.vim

@@ -608,12 +608,14 @@ endif
 
 augroup spacevim_layer_edit
   au!
-  autocmd BufNewFile * call <SID>add_buffer_head()
+  autocmd FileType * call <SID>add_buffer_head()
 augroup END
 let s:ft_head_tp = {}
 function! s:add_buffer_head() abort
-  if has_key(s:ft_head_tp, &ft)
-    call setline(1, s:ft_head_tp[&ft])
+  if has_key(s:ft_head_tp, &ft) && getline(1) == '' && line('$')  == 1
+    let head = s:ft_head_tp[&ft]
+    call setline(1, head)
+    call cursor(len(head), 0)
   endif
 endfunction
 

autoload/SpaceVim/layers/lang/python.vim

@@ -70,7 +70,9 @@ function! SpaceVim#layers#lang#python#config() abort
   call SpaceVim#layers#edit#add_ft_head_tamplate('python',
         \ ['#!/usr/bin/env python',
         \ '# -*- coding: utf-8 -*-',
-        \ '']
+        \ '',
+        \ ''
+        \ ]
         \ )
   if executable('ipython')
     call SpaceVim#plugins#repl#reg('python', 'ipython --no-term-title')

autoload/SpaceVim/layers/lang/sh.vim

@@ -9,6 +9,7 @@
 function! SpaceVim#layers#lang#sh#plugins() abort
   let l:plugins = []
   call add(l:plugins, ['chrisbra/vim-zsh', { 'on_ft' : 'zsh' }])
+  call add(l:plugins, ['dag/vim-fish', { 'merged' : 0 }])
   if get(g:, 'spacevim_enable_ycm') == 1
     call add(l:plugins, ['Valodim/vim-zsh-completion', { 'on_ft' : 'zsh' }])
   else
@@ -24,10 +25,18 @@ function! SpaceVim#layers#lang#sh#config() abort
 
   call SpaceVim#layers#edit#add_ft_head_tamplate('sh',
         \ ['#!/usr/bin/env bash',
-                \ '']
+        \ '',
+        \ ''
+        \ ]
         \ )
   call SpaceVim#layers#edit#add_ft_head_tamplate('zsh', [
         \ '#!/usr/bin/env zsh',
+        \ '',
+        \ ''
+        \ ])
+  call SpaceVim#layers#edit#add_ft_head_tamplate('fish', [
+        \ '#!/usr/bin/env fish',
+        \ '',
         \ ''
         \ ])
   augroup spacevim_layer_lang_sh
@@ -35,6 +44,8 @@ function! SpaceVim#layers#lang#sh#config() abort
     autocmd FileType sh setlocal omnifunc=SpaceVim#plugins#bashcomplete#omnicomplete
   augroup END
   call SpaceVim#mapping#gd#add('sh', function('s:go_to_def'))
+  call SpaceVim#mapping#gd#add('zsh', function('s:go_to_def'))
+  call SpaceVim#mapping#gd#add('fish', function('s:go_to_def'))
   call SpaceVim#mapping#space#regesit_lang_mappings('sh', function('s:language_specified_mappings'))
 endfunction
 function! s:language_specified_mappings() abort
@@ -49,7 +60,7 @@ function! s:language_specified_mappings() abort
 endfunction
 
 function! s:go_to_def() abort
-  if SpaceVim#layers#lsp#check_filetype('sh')
+  if SpaceVim#layers#lsp#check_filetype(&filetype)
     call SpaceVim#lsp#go_to_def()
   endif
 endfunction

autoload/SpaceVim/mapping/guide.vim

@@ -599,6 +599,9 @@ function! s:winclose() abort " {{{
     let s:gwin = -1
     noautocmd execute s:winnr.'wincmd w'
     call winrestview(s:winv)
+    if exists('*nvim_open_win')
+      doautocmd WinEnter
+    endif
   endif
   call s:remove_cursor_highlight()
 endfunction " }}}

docs/cn/layers/lang/sh.md

@@ -18,7 +18,7 @@ lang: cn
 
 ## 模块简介
 
-这一模块为 SpaceVim 提供了 Shell Script 开发支持。Shell Script 是指 Bash script 和 Zsh script。
+这一模块为 SpaceVim 提供了 Shell Script 开发支持。Shell Script 是指 bash script、zsh script 和 fish script。
 
 ## 功能特性
 

docs/layers/lang/sh.md

@@ -18,7 +18,7 @@ description: "Shell script development layer, provides autocompletion, syntax ch
 
 ## Description
 
-This layer is for shell script development. Shell script includes bash script and zsh script.
+This layer is for shell script development. Shell script includes bash, zsh and fish script.
 
 ## Features