chore: ci and stylua (#36)

* chore: ci

* chore: reformat with stylua

* fix: small fix

Author: Conni2461

.github/workflows/ci.yml

@@ -0,0 +1,49 @@
+name: Tests
+
+on: [push, pull_request]
+
+jobs:
+  tree-sitter:
+    name: tree-sitter
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: '14'
+      - run: npm install
+      - name: Generate grammar
+        run: make generate
+      - name: Run tests
+        run: ./node_modules/tree-sitter-cli/tree-sitter test
+
+  docgen:
+    name: X64-ubuntu
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - run: date +%F > todays-date
+      - name: Restore cache for today's nightly.
+        uses: actions/cache@v2
+        with:
+          path: _neovim
+          key: ${{ runner.os }}-x64-${{ hashFiles('todays-date') }}
+
+      - name: Prepare
+        run: |
+          mkdir -p ~/.local/share/nvim/site/pack/vendor/start
+          git clone --depth 1 https://github.com/nvim-lua/plenary.nvim ~/.local/share/nvim/site/pack/vendor/start/plenary.nvim
+          ln -s $(pwd) ~/.local/share/nvim/site/pack/vendor/start
+      - name: Build parser
+        run: |
+          # We have to build the parser every single time to keep up with parser changes
+          mkdir -p build parser
+          cc -o ./build/parser.so -I./src src/parser.c src/scanner.cc -shared -Os -lstdc++ -fPIC
+          ln -s ../build/parser.so parser/lua.so
+      - name: Run tests
+        run: |
+          curl -OL https://raw.githubusercontent.com/norcalli/bot-ci/master/scripts/github-actions-setup.sh
+          source github-actions-setup.sh nightly-x64
+          nvim --headless --noplugin \
+            -u tests/minimal_init.vim \
+            -c "PlenaryBustedDirectory lua/tests/ {minimal_init = 'tests/minimal_init.vim'}"

.github/workflows/lint.yml

@@ -0,0 +1,28 @@
+name: Linting and style checking
+
+on: [push, pull_request]
+
+jobs:
+  luacheck:
+    name: Luacheck
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: Prepare
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y luarocks
+          sudo luarocks install luacheck
+      - name: Lint
+        run: sudo make lualint
+
+  stylua:
+    name: stylua
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: JohnnyMorganz/[email protected]
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          # CLI arguments
+          args: --color always --check lua/

.luacheckrc

@@ -0,0 +1,23 @@
+-- Rerun tests only if their modification time changed.
+cache = true
+
+std = luajit
+codes = true
+
+self = false
+
+-- Glorious list of warnings: https://luacheck.readthedocs.io/en/stable/warnings.html
+ignore = {
+  "212", -- Unused argument, In the case of callback function, _arg_name is easier to understand than _, so this option is set to off.
+  "122", -- Indirectly setting a readonly global
+  "331"
+}
+
+globals = {
+  "_",
+}
+
+-- Global objects defined by the C code
+read_globals = {
+  "vim",
+}

.stylua.toml

@@ -0,0 +1,6 @@
+column_width = 120
+line_endings = "Unix"
+indent_type = "Spaces"
+indent_width = 2
+quote_style = "AutoPreferDouble"
+no_call_parentheses = true

Makefile

@@ -33,6 +33,9 @@ build_parser: generate
 gen_howto:
 	nvim --headless --noplugin -u tests/minimal_init.vim -c "luafile ./scratch/gen_howto.lua" -c 'qa'
 
+lualint:
+	luacheck lua/docgen
+
 wasm: build_parser
 	${ts} build-wasm