Partially import github.com/dag/vim-fish

vim/ftdetect/fish.vim

@@ -0,0 +1,23 @@
+autocmd BufRead,BufNewFile *.fish setfiletype fish
+
+" Detect fish scripts by the shebang line.
+autocmd BufRead *
+            \ if getline(1) =~# '\v^#!%(\f*/|/usr/bin/env\s*<)fish>' |
+            \     setlocal filetype=fish |
+            \ endif
+
+" Move cursor to first empty line when using funced.
+autocmd BufRead fish_funced_*_*.fish call search('^$')
+
+" Fish histories are YAML documents.
+autocmd BufRead,BufNewFile ~/.config/fish/fish_{read_,}history setfiletype yaml
+
+" Universal variable storages should not be hand edited.
+autocmd BufRead,BufNewFile ~/.config/fish/fishd.* setlocal readonly
+
+" Mimic `funced` when manually creating functions.
+autocmd BufNewFile ~/.config/fish/functions/*.fish
+            \ call append(0, ['function '.expand('%:t:r'),
+                             \'',
+                             \'end']) |
+            \ 2