chore: Add GitHub CI workflow

Also fix two elisp-check warnings in the package code.

Author: dhanak

.github/workflows/CI.yml

@@ -0,0 +1,38 @@
+name: CI
+on:
+  pull_request:
+  workflow_dispatch:
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        emacs-version:
+          - 29.1
+          - 29.2
+          - 29.3
+          - 29.4
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Emacs
+        uses: purcell/setup-emacs@master
+        with:
+          version: ${{ matrix.emacs-version }}
+      - name: Install prerequisites
+        shell: emacs --script {0}
+        run: |
+          (package-install 'julia-mode t)
+          (add-to-list 'load-path "${{ github.workspace }}")
+          (require 'julia-ts-mode)
+          (treesit-install-language-grammar 'julia)
+      - name: MELPA checks
+        uses: leotaku/elisp-check@master
+        with:
+          check: melpa
+          file: julia-ts-mode.el
+      - name: ERT checks
+        uses: leotaku/elisp-check@master
+        with:
+          check: ert
+          file: test/test.el

julia-ts-mode.el

@@ -31,7 +31,7 @@
 ;;
 ;;; Commentary:
 ;; This major modes uses tree-sitter for font-lock, indentation, imenu, and
-;; navigation. It is derived from `julia-mode'.
+;; navigation.  It is derived from `julia-mode'.
 
 ;;;; Code:
 
@@ -54,6 +54,13 @@
 ;; Notice that all custom variables and faces are automatically added to the
 ;; most recent group.
 
+;; As of the grammar version 0.22, it uses the argument_list node for both
+;; function definitions and calls.
+(define-obsolete-variable-alias
+  'julia-ts-align-parameter-list-to-first-sibling
+  'julia-ts-align-argument-list-to-first-sibling
+  "0.3")
+
 (defcustom julia-ts-align-argument-list-to-first-sibling nil
   "Align the argument list to the first sibling.
 
@@ -86,13 +93,6 @@ Otherwise, the indentation is:
   :version "29.1"
   :type 'boolean)
 
-;; As of the grammar version 0.22, it uses the argument_list node for both
-;; function definitions and calls.
-(define-obsolete-variable-alias
-  'julia-ts-align-parameter-list-to-first-sibling
-  'julia-ts-align-argument-list-to-first-sibling
-  "0.3")
-
 (defcustom julia-ts-align-curly-brace-expressions-to-first-sibling nil
   "Align curly brace expressions to the first sibling.
 
@@ -120,19 +120,19 @@ Otherwise, the indentation is:
 
 (defface julia-ts-quoted-symbol-face
   '((t :inherit font-lock-constant-face))
-  "Face for quoted Julia symbols in `julia-ts-mode', e.g. :foo.")
+  "Face for quoted Julia symbols in `julia-ts-mode', e.g., :foo.")
 
 (defface julia-ts-keyword-argument-face
   '((t :inherit font-lock-constant-face))
   "Face for keyword argument names in `julia-ts-mode'.")
 
 (defface julia-ts-interpolation-expression-face
   '((t :inherit font-lock-constant-face))
-  "Face for interpolation expressions in `julia-ts-mode', e.g. $foo.")
+  "Face for interpolation expressions in `julia-ts-mode', e.g., $foo.")
 
 (defface julia-ts-string-interpolation-face
   '((t :inherit font-lock-constant-face :weight bold))
-  "Face for string interpolations in `julia-ts-mode', e.g. \"$foo\".")
+  "Face for string interpolations in `julia-ts-mode', e.g., \"$foo\".")
 
 (defvar julia-ts--keywords
   '("baremodule" "begin" "catch" "const" "do" "else" "elseif" "end" "export"

test/test.el

@@ -4,6 +4,7 @@
 
 ;;; Code:
 (require 'faceup)
+(require 'julia-ts-mode)
 
 (defvar julia-font-lock-test-dir (faceup-this-file-directory))