No Rubocop linting with Solargraph 0.50 when using Kate Editor

[Robert Riemann]

Dear all,

I want to use solargraph inside of Kate Editor to receive rubocop linting.

I get method definitions and method completition popups in kate. However, linting is not working.

My Kate settings:

Screenshot of an editing session:

My solargraph config:

---
include:
- "**/*.rb"
exclude:
- spec/**/*
- test/**/*
- vendor/**/*
- ".bundle/**/*"
require: []
domains: []
reporters:
- rubocop
- require_not_found
formatter:
  rubocop:
    cops: safe
    except: []
    only: []
    extra_args: []
require_paths: []
plugins: []
max_files: 5000

Rubocop config .rubocop.yml:

File content

---
AllCops:
  TargetRubyVersion: 3.1
  Include:
  - lib/**/*.rb
  # - spec/**/*.rb
  NewCops: enable
  SuggestExtensions: false
Layout/EndAlignment:
  Severity: error
Lint/UnreachableCode:
  Severity: error
Lint/UselessAccessModifier:
  Enabled: false
Metrics/AbcSize:
  Max: 20
Metrics/BlockLength:
  Exclude:
    - spec/**/*.rb
Metrics/ClassLength:
  Max: 300
  Exclude:
  - !ruby/regexp /spec\/.*.rb$/
Metrics/CyclomaticComplexity:
  Max: 8
Layout/LineLength:
  Exclude:
    - Rakefile
    - Gemfile
    - jekyll-maps.gemspec
  Max: 90
  Severity: warning
Metrics/MethodLength:
  Max: 20
  CountComments: false
  Severity: error
Metrics/ModuleLength:
  Max: 240
Metrics/ParameterLists:
  Max: 4
Metrics/PerceivedComplexity:
  Max: 8
Style/Alias:
  Enabled: false
Style/AndOr:
  Severity: error
Style/Attr:
  Enabled: false
Style/ClassAndModuleChildren:
  Enabled: false
Style/Documentation:
  Enabled: false
Style/DoubleNegation:
  Enabled: false
Layout/EmptyLinesAroundAccessModifier:
  Enabled: false
Layout/EmptyLinesAroundModuleBody:
  Enabled: false
Layout/ExtraSpacing:
  AllowForAlignment: true
Naming/FileName:
  Enabled: false
Layout/FirstParameterIndentation:
  EnforcedStyle: consistent
Style/GuardClause:
  Enabled: false
Style/HashSyntax:
  EnforcedStyle: hash_rockets
  Severity: error
Style/IfUnlessModifier:
  Enabled: false
Layout/IndentationWidth:
  Severity: error
Style/ModuleFunction:
  Enabled: false
Layout/MultilineMethodCallIndentation:
  EnforcedStyle: indented
Layout/MultilineOperationIndentation:
  EnforcedStyle: indented
Style/MultilineTernaryOperator:
  Severity: error
Style/PercentLiteralDelimiters:
  PreferredDelimiters:
    "%q": "{}"
    "%Q": "{}"
    "%r": "!!"
    "%s": "()"
    "%w": "()"
    "%W": "()"
    "%x": "()"
Style/RedundantReturn:
  Enabled: false
Style/RedundantSelf:
  Enabled: false
Style/RegexpLiteral:
  EnforcedStyle: percent_r
Style/RescueModifier:
  Enabled: false
Style/SignalException:
  EnforcedStyle: only_raise
Style/SingleLineMethods:
  Enabled: false
Layout/SpaceAroundOperators:
  Enabled: false
Style/StringLiterals:
  EnforcedStyle: double_quotes
Style/StringLiteralsInInterpolation:
  EnforcedStyle: double_quotes
Style/RedundantCapitalW:
  Enabled: false
Style/SymbolArray:
  Enabled: false

I have configured to use ruby-3.1.2 with rvm (.ruby-version file). Kate Version 23.08.2 on opensuse tumbleweed linux 64bit

Any ideas how I can get it working? Once this is working, I can help to document this for a kate section at https://solargraph.org/guides .

[Fred Snyder]

Try turning on diagnostics with an initializationOptions or settings object.

"ruby": {
  "initializationOptions": {
    "diagnostics": true
  }
}

or

"ruby": {
  "settings": {
    "diagnostics": true
  }
}

[Robert Riemann]

I added:

      "ruby": {
        "settings": {
          "diagnostics": true
        }
      },

Since then, it seems to work:

Note however, that diagnostics was activated in the Kate menu before and this was not enough:

I ask in the Kate community what the expected behaviour of this menu is.

[Fred Snyder]

Fair point. In the early days of Solargraph, diagnostics support was experimental, so it was disabled by default. Nowadays, diagnostics work well and are configurable through .solargraph.yml, so it make sense to enable it by default now. I'll look into making that change.