Latest configuration changes

ftplugin/java.lua

@@ -1,4 +1,4 @@
 vim.opt_local.shiftwidth = 2
 vim.opt_local.tabstop = 2
-vim.opt_local.tw = 180
+vim.opt_local.tw = 100
 vim.opt_local.colorcolumn = "+1"

ftplugin/sh.lua

@@ -0,0 +1,37 @@
+vim.opt_local.colorcolumn = "100"
+vim.opt_local.textwidth = 100
+vim.opt_local.expandtab = true
+
+local function detect_indent(bufnr)
+	local lines = vim.api.nvim_buf_get_lines(bufnr, 0, 100, false)
+	local counts = {}
+	for _, line in ipairs(lines) do
+		local spaces = line:match("^( +)[^ ]")
+		if spaces then
+			local n = #spaces
+			counts[n] = (counts[n] or 0) + 1
+		end
+	end
+	-- find the smallest indent size with meaningful usage
+	for _, size in ipairs({ 2, 4, 8 }) do
+		if (counts[size] or 0) > 0 then
+			return size
+		end
+	end
+	return 4 -- default
+end
+
+local bufnr = vim.api.nvim_get_current_buf()
+local size = detect_indent(bufnr)
+
+vim.opt_local.shiftwidth = size
+vim.opt_local.tabstop = size
+vim.opt_local.softtabstop = size
+
+-- update beautysh indent size for this buffer
+local ok, conform = pcall(require, "conform")
+if ok then
+	conform.formatters.beautysh = {
+		prepend_args = { "--indent-size", tostring(size) },
+	}
+end

ftplugin/sh.vim

@@ -1,2 +0,0 @@
-set colorcolumn=100
-set tw=100