ci: add integration tests and break out other checks to separate work…

…flow

.github/workflows/checks.yml

@@ -0,0 +1,18 @@
+name: "Codebase Checks"
+
+# This workflow runs various checks (type checking, code checks)
+# to ensure that Neorg is not breaking.
+
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  integration-test:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v4
+      - uses: DeterminateSystems/nix-installer-action@v10
+      - name: Run Checks
+        run: nix flake check

.github/workflows/integration_tests.yml

@@ -1,7 +1,7 @@
 name: "Nix-based Integration Test"
 
 # This workflow attempts to install Neorg with a kickstart config on all major OSes.
-# Uses Nix + devenv for convenience.
+# Uses Nix for reproducability.
 
 on:
   push:
@@ -22,4 +22,4 @@ jobs:
       - uses: actions/checkout@v4
       - uses: DeterminateSystems/nix-installer-action@v10
       - name: Run Checks
-        run: nix flake check
+        run: nix run .#integration-test

flake.nix

@@ -1,6 +1,5 @@
 # General TODOS:
 # - Extract into modules for better readability
-# - Readd integration tests
 # - Add comments explaining the more terse parts of the flake.
 {
   description = "Flake for Neorg development and testing";
@@ -91,6 +90,104 @@
           };
         };
 
+        packages.integration-test = let
+          kickstart-config =
+            pkgs.writeScript "kickstart.lua"
+            ''
+              -- Adapted from https://github.com/folke/lazy.nvim#-installation
+
+              -- Install lazy.nvim
+              local lazypath = vim.fn.stdpath("data") .. "/lazy/lazy.nvim"
+              if not (vim.uv or vim.loop).fs_stat(lazypath) then
+                vim.fn.system({
+                  "git",
+                  "clone",
+                  "--filter=blob:none",
+                  "https://github.com/folke/lazy.nvim.git",
+                  "--branch=stable", -- latest stable release
+                  lazypath,
+                })
+              end
+              vim.opt.rtp:prepend(lazypath)
+
+              -- Set up both the traditional leader (for keymaps) as well as the local leader (for norg files)
+              vim.g.mapleader = " "
+              vim.g.maplocalleader = ","
+
+              require("lazy").setup({
+                {
+                  "rebelot/kanagawa.nvim", -- neorg needs a colorscheme with treesitter support
+                  config = function()
+                      vim.cmd.colorscheme("kanagawa")
+                  end,
+                },
+                {
+                  "nvim-treesitter/nvim-treesitter",
+                  build = ":TSUpdate",
+                  opts = {
+                    ensure_installed = { "c", "lua", "vim", "vimdoc", "query" },
+                    highlight = { enable = true },
+                  },
+                  config = function(_, opts)
+                    require("nvim-treesitter.configs").setup(opts)
+                  end,
+                },
+                {
+                    "vhyrro/luarocks.nvim",
+                    priority = 1000,
+                    config = true,
+                },
+                {
+                  "nvim-neorg/neorg",
+                  dependencies = { "luarocks.nvim" },
+                  config = function()
+                    require("neorg").setup {
+                      load = {
+                        ["core.defaults"] = {},
+                        ["core.concealer"] = {},
+                        ["core.dirman"] = {
+                          config = {
+                            workspaces = {
+                              notes = "~/notes",
+                            },
+                            default_workspace = "notes",
+                          },
+                        },
+                      },
+                    }
+
+                    vim.cmd.e("success")
+
+                    vim.wo.foldlevel = 99
+                    vim.wo.conceallevel = 2
+                  end,
+                }
+              })
+            '';
+        in
+          pkgs.writeShellApplication {
+            name = "neorg-integration-test";
+
+            runtimeInputs = with pkgs; [neovim-unwrapped tree-sitter lua5_1 wget kickstart-config];
+
+            text = ''
+              export NVIM_APPNAME="nvim-neorg"
+
+              echo "* Hello World!" > example.norg
+
+              nvim --headless -u ${kickstart-config} example.norg -c wq
+
+              rm example.norg
+
+              if [ ! -f success ]; then
+                  echo "Integration test failed!"
+                  exit 1
+              fi
+
+              rm success
+            '';
+          };
+
         devShells.default = pkgs.mkShell {
           name = "neorg devShell";