nvim: Add indent-blankline plugin

.config/nvim/init.lua

@@ -26,3 +26,4 @@ require("plugins.lsp.lspconfig")
 require("plugins.lsp.null-ls")
 require("plugins.leap")
 require("plugins.project")
+require("plugins.indent-blankline")

.config/nvim/lua/plugin-setup.lua

@@ -107,6 +107,9 @@ return packer.startup({
     -- schemastore for nvim
     use("b0o/schemastore.nvim")
 
+    -- indent guide lines
+    use("lukas-reineke/indent-blankline.nvim")
+
     if packer.bootstrap then
       require("packer").sync()
     end

.config/nvim/lua/plugins/indent-blankline.lua

@@ -0,0 +1,26 @@
+local status, indent_blankline = pcall(require, "indent_blankline")
+if not status then
+  return
+end
+
+vim.cmd([[highlight IndentBlanklineIndent1 guifg=#E06C75 gui=nocombine]])
+vim.cmd([[highlight IndentBlanklineIndent2 guifg=#E5C07B gui=nocombine]])
+vim.cmd([[highlight IndentBlanklineIndent3 guifg=#98C379 gui=nocombine]])
+vim.cmd([[highlight IndentBlanklineIndent4 guifg=#56B6C2 gui=nocombine]])
+vim.cmd([[highlight IndentBlanklineIndent5 guifg=#61AFEF gui=nocombine]])
+vim.cmd([[highlight IndentBlanklineIndent6 guifg=#C678DD gui=nocombine]])
+
+indent_blankline.setup({
+  show_current_context = true,
+  show_current_context_start = true,
+  show_end_of_line = true,
+  space_char_blankline = " ",
+  char_highlight_list = {
+    "IndentBlanklineIndent1",
+    "IndentBlanklineIndent2",
+    "IndentBlanklineIndent3",
+    "IndentBlanklineIndent4",
+    "IndentBlanklineIndent5",
+    "IndentBlanklineIndent6",
+  },
+})