Add ERB Lint

.erb-lint.yml

@@ -0,0 +1,24 @@
+---
+EnableDefaultLinters: true
+linters:
+  Rubocop:
+    enabled: true
+    rubocop_config:
+      inherit_from:
+        - .rubocop.yml
+      Layout/ArgumentAlignment:
+        Enabled: false
+      Layout/CommentIndentation:
+        Enabled: false
+      Layout/FirstArgumentIndentation:
+        Enabled: false
+      Layout/FirstArrayElementIndentation:
+        Enabled: false
+      Layout/FirstHashElementIndentation:
+        Enabled: false
+      Layout/InitialIndentation:
+        Enabled: false
+      Layout/TrailingEmptyLines:
+        Enabled: false
+      Lint/UselessAssignment:
+        Enabled: false

Gemfile

@@ -78,6 +78,7 @@ group :development do
   gem "web-console", ">= 4.1.0"
   # Display performance information such as SQL time and flame graphs for each request in your browser.
   # Can be configured to work on production as well see: https://github.com/MiniProfiler/rack-mini-profiler/blob/master/README.md
+  gem "erb_lint", require: false
   gem "rack-mini-profiler", "~> 2.0"
   gem "rubocop-govuk", require: false
   gem "rubocop-performance", require: false

Gemfile.lock

@@ -121,6 +121,14 @@ GEM
     aws-sigv4 (1.4.0)
       aws-eventstream (~> 1, >= 1.0.2)
     bcrypt (3.1.17)
+    better_html (1.0.16)
+      actionview (>= 4.0)
+      activesupport (>= 4.0)
+      ast (~> 2.0)
+      erubi (~> 1.4)
+      html_tokenizer (~> 0.0.6)
+      parser (>= 2.4)
+      smart_properties
     bindex (0.8.1)
     bootsnap (1.11.1)
       msgpack (~> 1.2)
@@ -159,6 +167,14 @@ GEM
       dotenv (= 2.7.6)
       railties (>= 3.2)
     encryptor (3.0.0)
+    erb_lint (0.1.1)
+      activesupport
+      better_html (~> 1.0.7)
+      html_tokenizer
+      parser (>= 2.7.1.4)
+      rainbow
+      rubocop
+      smart_properties
     erubi (1.10.0)
     excon (0.92.2)
     factory_bot (6.2.1)
@@ -188,6 +204,7 @@ GEM
       actionpack (>= 5.2)
       activesupport (>= 5.2)
     hashdiff (1.0.1)
+    html_tokenizer (0.0.7)
     i18n (1.10.0)
       concurrent-ruby (~> 1.0)
     inherited_resources (1.13.1)
@@ -420,6 +437,7 @@ GEM
       simplecov_json_formatter (~> 0.1)
     simplecov-html (0.12.3)
     simplecov_json_formatter (0.1.4)
+    smart_properties (1.17.0)
     stimulus-rails (1.0.4)
       railties (>= 6.0.0)
     strscan (3.0.1)
@@ -469,6 +487,7 @@ DEPENDENCIES
   chartkick
   devise!
   dotenv-rails
+  erb_lint
   factory_bot_rails
   govuk-components
   govuk_design_system_formbuilder