Revert "Add support for linting ECR files (#536)" (#540)

This reverts commit 371414e.

README.md

@@ -174,7 +174,6 @@ In this example we define default globs and exclude `src/compiler` folder:
 ``` yaml
 Globs:
   - "**/*.cr"
-  - "**/*.ecr"
   - "!lib"
 
 Excluded:

spec/ameba/source_spec.cr

@@ -70,31 +70,5 @@ module Ameba
           CRYSTAL
       end
     end
-
-    if Ameba.ecr_supported?
-      describe "#ast" do
-        it "parses an ECR file" do
-          source = Source.new <<-ECR, "filename.ecr"
-            hello <%= "world" %>
-            ECR
-
-          source.ast.to_s.should eq(<<-CRYSTAL)
-            __str__ << "hello "
-            ("world").to_s(__str__)
-
-            CRYSTAL
-        end
-
-        it "raises an exception when ECR parsing fails" do
-          source = Source.new <<-ECR, "filename.ecr"
-            hello <%= "world" >
-            ECR
-
-          expect_raises(Crystal::SyntaxException) do
-            source.ast
-          end
-        end
-      end
-    end
   end
 end

src/ameba.cr

@@ -40,8 +40,4 @@ module Ameba
   def run(config = Config.load)
     Runner.new(config).run
   end
-
-  def self.ecr_supported? : Bool
-    {{ compare_versions(Crystal::VERSION, "1.15.0") >= 0 }}
-  end
 end

src/ameba/config.cr

@@ -1,6 +1,5 @@
 require "semantic_version"
 require "yaml"
-require "ecr/processor"
 require "./glob_utils"
 
 # A configuration entry for `Ameba::Runner`.
@@ -63,10 +62,6 @@ class Ameba::Config
     !lib
   )
 
-  if Ameba.ecr_supported?
-    DEFAULT_GLOBS << "**/*.ecr"
-  end
-
   getter rules : Array(Rule::Base)
   property severity = Severity::Convention
 
@@ -172,7 +167,7 @@ class Ameba::Config
   # ```
   # config = Ameba::Config.load
   # config.sources # => list of default sources
-  # config.globs = ["**/*.cr", "**/*.ecr"]
+  # config.globs = ["**/*.cr"]
   # config.excluded = ["spec"]
   # config.sources # => list of sources pointing to files found by the wildcards
   # ```

src/ameba/glob_utils.cr

@@ -24,14 +24,7 @@ module Ameba
     def expand(globs)
       globs
         .flat_map do |glob|
-          if File.directory?(glob)
-            glob += "/**/*.cr"
-
-            if Ameba.ecr_supported?
-              glob += "/**/*.ecr"
-            end
-          end
-
+          glob += "/**/*.cr" if File.directory?(glob)
           Dir[glob]
         end
         .uniq!

src/ameba/source.cr

@@ -57,22 +57,6 @@ module Ameba
     # source.ast
     # ```
     getter ast : Crystal::ASTNode do
-      code = @code
-
-      if Ameba.ecr_supported? && @path.ends_with?(".ecr")
-        begin
-          code = ECR.process_string(code, @path)
-        rescue ex : ECR::Lexer::SyntaxException
-          # Need to rescue to add the filename
-          raise Crystal::SyntaxException.new(
-            ex.message,
-            ex.line_number,
-            ex.column_number,
-            @path
-          )
-        end
-      end
-
       Crystal::Parser.new(code)
         .tap(&.wants_doc = true)
         .tap(&.filename = path)