1 files changed, 80 insertions, 0 deletions
diff --git a/.config/nvim/after/ftplugin/markdown.lua b/.config/nvim/after/ftplugin/markdown.lua
new file mode 100644
index 0000000..755b9aa
--- /dev/null
+++ b/.config/nvim/after/ftplugin/markdown.lua
@@ -0,0 +1,80 @@
+local function format(callback)
+	local view = vim.fn.winsaveview()
+	local buf_str = ""
+	for _, v in ipairs(vim.api.nvim_buf_get_lines(0, 0, -1, false)) do
+		buf_str = buf_str .. v .. "\n"
+	end
+	local tempname = vim.fn.tempname()
+	local tempfile = assert(io.open(tempname, "w"), "Could not open temporary file")
+	tempfile:write(buf_str)
+	tempfile:close()
+
+	local r_check = vim.system({
+		"mdformat",
+		"--number",
+		"--extensions",
+		"tables",
+		"--extensions",
+		"frontmatter",
+		"--wrap",
+		tostring(vim.bo.textwidth),
+		"--check",
+		tempname,
+	}):wait()
+	if r_check.code == 0 then
+		return
+	elseif r_check.code ~= 1 then
+		vim.notify("mdformat failed (" .. r_check.code .. "):\n" .. r_check.stderr)
+	end
+	local r_format = vim.system({
+		"mdformat",
+		"--number",
+		"--extensions",
+		"tables",
+		"--extensions",
+		"frontmatter",
+		"--wrap",
+		tostring(vim.bo.textwidth),
+		tempname,
+	}):wait()
+	if r_format.code ~= 0 then
+		vim.notify("mdformat failed (" .. r_format.code .. "):\n" .. r_format.stderr)
+	end
+	local formatted_lines = {}
+	for line in io.lines(tempname) do
+		formatted_lines[#formatted_lines + 1] = line
+	end
+	vim.api.nvim_buf_set_lines(0, 0, -1, false, formatted_lines)
+
+	vim.fn.winrestview(view)
+	if callback then
+		callback()
+	end
+end
+
+vim.opt_local.tabstop = 2 -- CommonMark expects two spaces for indentation
+vim.opt_local.shiftwidth = 0
+vim.opt_local.softtabstop = -1
+vim.opt_local.expandtab = true -- Change tabs to spaces
+-- Nothing in the gutter, except sign columns if necessary
+vim.opt_local.number = false
+vim.opt_local.relativenumber = false
+vim.opt_local.signcolumn = "auto"
+vim.opt_local.foldcolumn = "0"
+--
+vim.opt_local.textwidth = 120 -- gw wraps at this value
+vim.opt_local.colorcolumn = "+1" -- Highlight one column after 'textwidth'
+vim.opt_local.foldlevel = 1
+-- Replace concealed text with a character from `'listchars'`
+-- With `'foldmethod'` set to `expr` and `'foldlevel'` set to 2 fenced code blocks are concealed and completely invisible
+-- I guess that's a TODO for later, find a way to use `'conceallevel'` = 2 but with folded fenced code blocks visible
+vim.opt_local.conceallevel = 1
+vim.opt_local.complete = {
+	"o", -- 'omnifunc'
+	".", -- current buffer
+}
+-- Visible link labels
+vim.api.nvim_set_hl(0, "@markup.link.label.markdown_inline", { underline = true, update = true })
+
+vim.b.autoformat = true
+vim.b.format_func = format