Enable ameba linter

.ameba.yml

@@ -0,0 +1,130 @@
+# Global
+
+Excluded:
+  - src/unicode/data.cr
+  - src/openssl/lib_crypto.cr
+
+# Metrics
+
+Metrics/CyclomaticComplexity:
+  Enabled: false
+
+# Documentation
+
+Documentation/DocumentationAdmonition:
+  Enabled: false
+
+# Naming
+
+Naming/BlockParameterName:
+  Enabled: false
+
+Naming/BinaryOperatorParameterName:
+  Enabled: false
+
+Naming/ConstantNames:
+  Excluded:
+    - src/lib_c/x86_64-windows-msvc/**/*
+    - src/lib_c/aarch64-android/**/*
+
+Naming/TypeNames:
+  Excluded:
+    - src/lib_c/**/*
+    - src/llvm/abi/**/*
+    - src/float/printer/**/*
+    - src/time/format/custom/**/*
+
+Naming/MethodNames:
+  Excluded:
+    - samples/spectral-norm.cr
+    - src/crystal/system/win32/time.cr
+
+Naming/VariableNames:
+  Excluded:
+    - samples/spectral-norm.cr
+    - src/lib_c/**/*
+    - src/float/printer/**/*
+    - src/crystal/system/win32/time.cr
+    - src/crystal/system/win32/delay_load.cr
+    - src/xml/libxml2.cr
+
+# Lint
+
+Lint/Typos:
+  Enabled: false
+
+Lint/ShadowingOuterLocalVar:
+  Enabled: false
+
+Lint/NotNil:
+  Enabled: false
+
+Lint/UnusedArgument:
+  Enabled: false
+
+Lint/DebuggerStatement:
+  Excluded:
+    - spec/debug/**/*
+
+Lint/DebugCalls:
+  Excluded:
+    - scripts/generate_windows_zone_names.cr
+    - samples/**/*
+    - spec/std/pp_spec.cr
+    - src/kernel.cr
+
+Lint/UselessAssign:
+  Excluded:
+    - scripts/generate_grapheme_properties.cr
+    - scripts/generate_unicode_data.cr
+    - samples/mt_gc_test.cr
+    - spec/debug/**/*
+    - spec/std/concurrent/select_spec.cr
+    - spec/std/weak_ref_spec.cr
+    - src/crystal/system/unix/syscall.cr
+
+Lint/LiteralInInterpolation:
+  Excluded:
+    - spec/compiler/formatter/formatter_spec.cr
+    - spec/std/string_spec.cr
+    - spec/std/random_spec.cr
+
+Lint/LiteralInCondition:
+  Excluded:
+    - spec/std/range_spec.cr
+
+Lint/LiteralsComparison:
+  Excluded:
+    - spec/std/int_spec.cr
+    - spec/std/tuple_spec.cr
+    - spec/std/char_spec.cr
+    - spec/std/regex_spec.cr
+
+Lint/RandZero:
+  Excluded:
+    - spec/std/random_spec.cr
+
+Lint/SpecFocus:
+  Excluded:
+    - spec/compiler/parser/parser_spec.cr
+
+Lint/SpecFilename:
+  Excluded:
+    - spec/llvm-ir/**/*
+    - spec/compiler/crystal_path/**/*
+
+# Style
+
+Style/WhileTrue:
+  Enabled: false
+
+Style/NegatedConditionsInUnless:
+  Enabled: false
+
+Style/VerboseBlock:
+  ExcludeOperators: true
+  ExcludeSetters: true
+
+Style/RedundantNext:
+  Excluded:
+    - src/crystal/system/win32/**/*

.github/workflows/linux.yml

@@ -107,6 +107,23 @@ jobs:
       - name: Check Format
         run: bin/ci format
 
+  run_ameba:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Install latest Crystal version
+        uses: crystal-lang/install-crystal@v1
+        with:
+          crystal: latest
+
+      - name: Download Crystal source
+        uses: actions/checkout@v4
+
+      - name: Install dependencies
+        run: shards install
+
+      - name: Run Ameba linter
+        run: bin/ameba
+
   deploy_api_docs:
     if: github.repository_owner == 'crystal-lang' && github.event_name == 'push' && github.ref == 'refs/heads/master'
     env:

shard.lock

@@ -1,5 +1,9 @@
 version: 2.0
 shards:
+  ameba:
+    git: https://github.com/crystal-ameba/ameba.git
+    version: 1.6.1+git.commit.6d03cef6dfd0f52faf19bbcd47d14831db4d7834
+
   markd:
     git: https://github.com/icyleaf/markd.git
     version: 0.5.0

shard.yml

@@ -16,6 +16,11 @@ dependencies:
     github: I3oris/reply
     commit: 90a7eb5a76048884d5d56bf6b9369f1e67fdbcd7
 
+development_dependencies:
+  ameba:
+    github: crystal-ameba/ameba
+    commit: 6d03cef6dfd0f52faf19bbcd47d14831db4d7834
+
 license: Apache-2.0
 
 repository: https://github.com/crystal-lang/crystal