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dotfiles/config/nvim/nifoc/formatting.fnl

48 lines
2 KiB
Fennel

(let [mod {}
b vim.b
cmd vim.cmd
api vim.api
set-bufvar vim.api.nvim_buf_set_var]
(fn mod.setup []
(let [usercmd vim.api.nvim_create_user_command
augroup (vim.api.nvim_create_augroup :NifocFormatting {:clear true})
aucmd vim.api.nvim_create_autocmd]
(usercmd :FormatDisableBuffer mod.disable-for-buffer
{:desc "Disable Formatting for the current buffer"})
(usercmd :FormatEnableBuffer mod.enable-for-buffer
{:desc "Enable Formatting for the current buffer"})
(aucmd :BufWritePre {:callback mod.maybe-format-buffer
:group augroup
:desc "Run Formatter"})))
(fn mod.enable-for-buffer []
(set-bufvar 0 :nifoc_formatter_disabled 0))
(fn mod.disable-for-buffer []
(set-bufvar 0 :nifoc_formatter_disabled 1))
(fn mod.active? []
(if (= b.nifoc_formatter_disabled 1) false
(= b.nifoc_lsp_formatter_enabled 1) true
(not= (vim.opt_local.formatprg:get) "") true
false))
(fn mod.maybe-enable-lsp [client bufnr]
(when (client.supports_method :textDocument/rangeFormatting)
(api.nvim_buf_set_option bufnr :formatexpr "v:lua.vim.lsp.formatexpr()"))
(when (client.supports_method :textDocument/formatting)
(set-bufvar bufnr :nifoc_lsp_formatter_enabled 1)))
(fn mod.maybe-format-buffer []
(let [formatprg (vim.opt_local.formatprg:get)
formatprg-exe (-> formatprg (vim.split " " {:trimempty true}) (. 1))]
(if (= b.nifoc_formatter_disabled 1) nil
(= b.nifoc_lsp_formatter_enabled 1) (vim.lsp.buf.format {:timeout_ms 1000})
(not= formatprg-exe nil) (let [neoformat (.. "Neoformat "
formatprg-exe)]
(cmd (.. "try | undojoin | " neoformat
" | catch /E790/ | " neoformat
" | endtry"))))))
mod)