neovim/runtime/filetype.lua
Gregory Anders 020d1f626a fix(filetype): call on_detect before setting buffer filetype
The on_detect functions returned by filetype.lua set buffer local
variables which are often used by filetype plugins. For example, the
on_detect function for shell buffers sets variables such as b:is_bash or
b:is_sh, which are used by the sh ftplugin.

When called after setting the buffer's filetype, these variables cannot
be used by the ftplugin (because they are not yet defined). Instead,
call on_detect before setting the buffer filetype so that any buffer
variables set by on_detect can be used in the ftplugin.
2023-08-24 12:48:21 -05:00

57 lines
1.7 KiB
Lua

if vim.g.did_load_filetypes then
return
end
vim.g.did_load_filetypes = 1
vim.api.nvim_create_augroup('filetypedetect', { clear = false })
vim.api.nvim_create_autocmd({ 'BufRead', 'BufNewFile', 'StdinReadPost' }, {
group = 'filetypedetect',
callback = function(args)
local ft, on_detect = vim.filetype.match({ filename = args.match, buf = args.buf })
if not ft then
-- Generic configuration file used as fallback
ft = require('vim.filetype.detect').conf(args.file, args.buf)
if ft then
vim.api.nvim_buf_call(args.buf, function()
vim.api.nvim_cmd({ cmd = 'setf', args = { 'FALLBACK', ft } }, {})
end)
end
else
-- on_detect is called before setting the filetype so that it can set any buffer local
-- variables that may be used the filetype's ftplugin
if on_detect then
on_detect(args.buf)
end
vim.api.nvim_buf_call(args.buf, function()
vim.api.nvim_cmd({ cmd = 'setf', args = { ft } }, {})
end)
end
end,
})
-- These *must* be sourced after the autocommand above is created
if not vim.g.did_load_ftdetect then
vim.cmd([[
augroup filetypedetect
runtime! ftdetect/*.{vim,lua}
augroup END
]])
end
-- Set up the autocmd for user scripts.vim
vim.api.nvim_create_autocmd({ 'BufRead', 'BufNewFile' }, {
group = 'filetypedetect',
command = "if !did_filetype() && expand('<amatch>') !~ g:ft_ignore_pat | runtime! scripts.vim | endif",
})
vim.api.nvim_create_autocmd('StdinReadPost', {
group = 'filetypedetect',
command = 'if !did_filetype() | runtime! scripts.vim | endif',
})
if not vim.g.ft_ignore_pat then
vim.g.ft_ignore_pat = '\\.\\(Z\\|gz\\|bz2\\|zip\\|tgz\\)$'
end