added statusline

nvim/lua/tracer/statusline.lua

@@ -0,0 +1,49 @@
+local M = {}
+
+local function progress_bar()
+  local columns = vim.o.columns
+  local total_lines = vim.fn.line("$")
+  local current_line = vim.fn.line(".")
+  local current_col = vim.fn.virtcol(".")
+
+  local bar_width = math.max(columns - 65, 3)
+  local progress
+
+  if total_lines > 1 then
+    progress = math.floor((current_line - 1) * (bar_width - 1) / (total_lines - 1))
+  else
+    progress = math.floor(bar_width / 2)
+  end
+
+  local pad = #tostring(total_lines) - #tostring(current_line) + 3
+    - #tostring(current_col) + 3
+    - #tostring(math.floor(current_line * 100 / math.max(total_lines, 1)))
+
+  return string.rep(" ", math.max(pad, 0))
+    .. " ["
+    .. "%#DiffAdd#"
+    .. string.rep("-", progress)
+    .. "%#DiffDelete#0%#DiffAdd#"
+    .. string.rep("-", math.max(bar_width - progress - 1, 0))
+    .. "%*]"
+end
+
+function M.render()
+  local encoding = vim.bo.fenc ~= "" and vim.bo.fenc or vim.o.enc
+  local bomb = vim.bo.bomb and ",B" or ""
+
+  return table.concat({
+    "%f",
+    " [",
+    encoding,
+    bomb,
+    "%M%R%H%W] ",
+    "%y",
+    " [%l/%L,%v] [%p%%]",
+    progress_bar(),
+  })
+end
+
+vim.o.statusline = "%!v:lua.require'tracer.statusline'.render()"
+
+return M