neovim/runtime/filetype.lua
Gregory Anders f3ce06cfa1
refactor(filetype)!: allow vim.filetype.match to use different strategies (#18895)
This enables vim.filetype.match to match based on a buffer (most
accurate) or simply a filename or file contents, which are less accurate
but may still be useful for some scenarios.

When matching based on a buffer, the buffer's name and contents are both
used to do full filetype matching. When using a filename, if the file
exists the file is loaded into a buffer and full filetype detection is
performed. If the file does not exist then filetype matching is only
performed against the filename itself. Content-based matching does the
equivalent of scripts.vim, and matches solely based on file contents
without any information from the name of the file itself (e.g. for
shebangs).

BREAKING CHANGE: use `vim.filetype.match({buf = bufnr})` instead 
of `vim.filetype.match(name, bufnr)`
2022-06-26 18:41:20 +02:00

54 lines
1.4 KiB
Lua

if vim.g.did_load_filetypes and vim.g.did_load_filetypes ~= 0 then
return
end
-- For now, make this opt-in with a global variable
if vim.g.do_filetype_lua ~= 1 then
return
end
vim.api.nvim_create_augroup('filetypedetect', { clear = false })
vim.api.nvim_create_autocmd({ 'BufRead', 'BufNewFile' }, {
group = 'filetypedetect',
callback = function(args)
local ft, on_detect = vim.filetype.match({ buf = args.buf })
if ft then
vim.api.nvim_buf_set_option(args.buf, 'filetype', ft)
if on_detect then
on_detect(args.buf)
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
runtime! ftdetect/*.lua
augroup END
]])
end
-- Set a marker so that the ftdetect scripts are not sourced a second time by filetype.vim
vim.g.did_load_ftdetect = 1
-- If filetype.vim is disabled, set up the autocmd to use scripts.vim
if vim.g.did_load_filetypes then
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',
})
end
if not vim.g.ft_ignore_pat then
vim.g.ft_ignore_pat = '\\.\\(Z\\|gz\\|bz2\\|zip\\|tgz\\)$'
end