ci: lints

.github/workflows/lint.yml

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+name: Run tests
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  luacheck:
+    name: Luacheck
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Prepare
+        run: |
+          sudo apt-get update
+          sudo add-apt-repository universe
+          sudo apt install luarocks -y
+          sudo luarocks install luacheck
+
+      - name: Run Luacheck
+        run: luacheck lua tests
+
+  typecheck:
+    name: typecheck
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: stevearc/nvim-typecheck-action@v1
+        with:
+          path: lua
+
+  stylua:
+    name: StyLua
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Stylua
+        uses: JohnnyMorganz/stylua-action@v3
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          version: v0.18.2
+          args: --check lua tests

.luacheckrc

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+-- vim: ft=lua tw=80
+
+-- Rerun tests only if their modification time changed.
+cache = true
+
+-- Global objects defined by the C code
+read_globals = { "vim" }

stylua.toml

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+column_width = 80
+indent_type = "Spaces"
+indent_width = 2
+quote_style = "AutoPreferDouble"