DEV: Enable ruby Syntax Tree format

.github/workflows/plugin-linting.yml

@@ -55,3 +55,7 @@ jobs:
       - name: Rubocop
         if: ${{ always() }}
         run: bundle exec rubocop .
+
+      - name: Syntax Tree
+        if: ${{ always() }}
+        run: RUBYOPT="-W0" bundle exec stree check --print-width=100 --plugins=plugin/trailing_comma **/*.rb Gemfile **/*.rake

Gemfile

@@ -1,7 +1,8 @@
 # frozen_string_literal: true
 
-source 'https://rubygems.org'
+source "https://rubygems.org"
 
 group :development do
-  gem 'rubocop-discourse'
+  gem "rubocop-discourse", git: "https://github.com/discourse/rubocop-discourse/", branch: "stree"
+  gem "syntax_tree"
 end

Gemfile.lock

@@ -1,34 +1,49 @@
+GIT
+  remote: https://github.com/discourse/rubocop-discourse/
+  revision: 8afca6460a423a11a2e0bf1f7051b18dd9a7231b
+  branch: stree
+  specs:
+    rubocop-discourse (2.5.0)
+      rubocop (>= 1.1.0)
+      rubocop-rspec (>= 2.0.0)
+
 GEM
   remote: https://rubygems.org/
   specs:
-    ast (2.4.0)
-    jaro_winkler (1.5.4)
-    parallel (1.19.1)
-    parser (2.7.1.2)
-      ast (~> 2.4.0)
-    rainbow (3.0.0)
+    ast (2.4.2)
+    json (2.6.2)
+    parallel (1.22.1)
+    parser (3.1.2.0)
+      ast (~> 2.4.1)
+    prettier_print (0.1.0)
+    rainbow (3.1.1)
+    regexp_parser (2.5.0)
     rexml (3.2.5)
-    rubocop (0.82.0)
-      jaro_winkler (~> 1.5.1)
+    rubocop (1.32.0)
+      json (~> 2.3)
       parallel (~> 1.10)
-      parser (>= 2.7.0.1)
+      parser (>= 3.1.0.0)
       rainbow (>= 2.2.2, < 4.0)
-      rexml
+      regexp_parser (>= 1.8, < 3.0)
+      rexml (>= 3.2.5, < 4.0)
+      rubocop-ast (>= 1.19.1, < 2.0)
       ruby-progressbar (~> 1.7)
-      unicode-display_width (>= 1.4.0, < 2.0)
-    rubocop-discourse (2.1.2)
-      rubocop (>= 0.69.0)
-      rubocop-rspec (>= 1.39.0)
-    rubocop-rspec (1.39.0)
-      rubocop (>= 0.68.1)
-    ruby-progressbar (1.10.1)
-    unicode-display_width (1.7.0)
+      unicode-display_width (>= 1.4.0, < 3.0)
+    rubocop-ast (1.19.1)
+      parser (>= 3.1.1.0)
+    rubocop-rspec (2.12.1)
+      rubocop (~> 1.31)
+    ruby-progressbar (1.11.0)
+    syntax_tree (3.2.1)
+      prettier_print
+    unicode-display_width (2.2.0)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  rubocop-discourse
+  rubocop-discourse!
+  syntax_tree
 
 BUNDLED WITH
-   2.1.4
+   2.2.22