Remove the SchemaDumper options and change the default behavior

Now the schema dumper by default doesn't align the types and arguments
in the ruby format anymore.

4 files changed, 17 insertions, 137 deletions

diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index fd2c5dd9bb..4aa1853bde 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,6 +1,4 @@
-*   Option to remove standardized column types/arguments spaces in schema dump
-    with `ActiveRecord::SchemaDumper.standardized_argument_widths` and
-    `ActiveRecord::SchemaDumper.standardized_type_widths` methods.
+*   Remove standardized column types/arguments spaces in schema dump.
 
     *Tim Petricola*
 
diff --git a/activerecord/lib/active_record/schema_dumper.rb b/activerecord/lib/active_record/schema_dumper.rb
index be74922453..b65d5b56f1 100644
--- a/activerecord/lib/active_record/schema_dumper.rb
+++ b/activerecord/lib/active_record/schema_dumper.rb
@@ -16,22 +16,6 @@ module ActiveRecord
     cattr_accessor :ignore_tables
     @@ignore_tables = []
 
-    ##
-    # :singleton-method:
-    # Define whether column arguments are lined up in dump.
-    # Acceptable values are true or false.
-    # This setting is only used if ActiveRecord::Base.schema_format == :ruby
-    cattr_accessor :standardized_argument_widths
-    @@standardized_argument_widths = true
-
-    ##
-    # :singleton-method:
-    # Define whether columns types are lined up in dump.
-    # Acceptable values are true or false.
-    # This setting is only used if ActiveRecord::Base.schema_format == :ruby
-    cattr_accessor :standardized_type_widths
-    @@standardized_type_widths = true
-
     class << self
       def dump(connection=ActiveRecord::Base.connection, stream=STDOUT, config = ActiveRecord::Base)
         new(connection, generate_options(config)).dump(stream)
@@ -162,32 +146,13 @@ HEADER
           keys = @connection.migration_keys
 
           # figure out the lengths for each column based on above keys
-          lengths = if standardized_argument_widths
-            keys.map { |key|
-              column_specs.map { |spec|
-                spec[key] ? spec[key].length + 2 : 0
-              }.max
-            }
-          else
-            [0] * keys.length
-          end
+          lengths = [0] * keys.length
 
           # the string we're going to sprintf our values against, with standardized column widths
-          format_string = if standardized_argument_widths
-            lengths.map { |len| "%-#{len}s" }
-          else
-            ["%s"] * keys.length
-          end
+          format_string = ["%s"] * keys.length
 
           # add column type definition to our format string
-          if standardized_type_widths
-            # find the max length for the 'type' column, which is special
-            type_length = column_specs.map { |column| column[:type].length }.max
-
-            format_string.unshift "    t.%-#{type_length}s "
-          else
-            format_string.unshift "    t.%s "
-          end
+          format_string.unshift "    t.%s "
 
           format_string *= ""
 
diff --git a/activerecord/test/cases/schema_dumper_test.rb b/activerecord/test/cases/schema_dumper_test.rb
index 23cfe46d7f..57b1bc889a 100644
--- a/activerecord/test/cases/schema_dumper_test.rb
+++ b/activerecord/test/cases/schema_dumper_test.rb
@@ -70,38 +70,35 @@ class SchemaDumperTest < ActiveRecord::TestCase
     assert_match %r{create_table "CamelCase"}, output
   end
 
-  def assert_line_up(lines, pattern, required = false)
+  def assert_no_line_up(lines, pattern)
     return assert(true) if lines.empty?
     matches = lines.map { |line| line.match(pattern) }
-    assert matches.all? if required
     matches.compact!
     return assert(true) if matches.empty?
-    assert_equal 1, matches.map { |match| match.offset(0).first }.uniq.length
+    line_matches = lines.map { |line| [line, line.match(pattern)] }.select { |line, match| match }
+    assert line_matches.all? { |line, match|
+      start = match.offset(0).first
+      line[start - 2..start - 1] == ", "
+    }
   end
 
   def column_definition_lines(output = standard_dump)
     output.scan(/^( *)create_table.*?\n(.*?)^\1end/m).map { |m| m.last.split(/\n/) }
   end
 
-  def test_types_line_up
+  def test_types_no_line_up
     column_definition_lines.each do |column_set|
       next if column_set.empty?
 
-      lengths = column_set.map do |column|
-        if match = column.match(/\bt\.\w+\s+(?="\w+?")/)
-          match[0].length
-        end
-      end.compact
-
-      assert_equal 1, lengths.uniq.length
+      assert column_set.all? { |column| !column.match(/\bt\.\w+\s{2,}/) }
     end
   end
 
-  def test_arguments_line_up
+  def test_arguments_no_line_up
     column_definition_lines.each do |column_set|
-      assert_line_up(column_set, /default: /)
-      assert_line_up(column_set, /limit: /)
-      assert_line_up(column_set, /null: /)
+      assert_no_line_up(column_set, /default: /)
+      assert_no_line_up(column_set, /limit: /)
+      assert_no_line_up(column_set, /null: /)
     end
   end
 
@@ -442,81 +439,3 @@ class SchemaDumperDefaultsTest < ActiveRecord::TestCase
     assert_match %r{t\.time\s+"time_with_default",\s+default: '2000-01-01 07:17:04'}, output
   end
 end
-
-class SchemaDumperNoStandardizedArgumentWidthsTest < ActiveRecord::TestCase
-  include SchemaDumpingHelper
-
-  setup do
-    ActiveRecord::SchemaDumper.standardized_argument_widths = false
-    ActiveRecord::SchemaMigration.create_table
-  end
-
-  teardown do
-    ActiveRecord::SchemaDumper.standardized_argument_widths = true
-  end
-
-  def standard_dump
-    @@standard_dump ||= perform_schema_dump
-  end
-
-  def perform_schema_dump
-    dump_all_table_schema []
-  end
-
-  def assert_no_line_up(lines, pattern)
-    return assert(true) if lines.empty?
-    matches = lines.map { |line| line.match(pattern) }
-    matches.compact!
-    return assert(true) if matches.empty?
-    line_matches = lines.map { |line| [line, line.match(pattern)] }.select { |line, match| match }
-    assert line_matches.all? { |line, match|
-      start = match.offset(0).first
-      line[start - 2..start - 1] == ", "
-    }
-  end
-
-  def column_definition_lines(output = standard_dump)
-    output.scan(/^( *)create_table.*?\n(.*?)^\1end/m).map { |m| m.last.split(/\n/) }
-  end
-
-  def test_arguments_no_line_up
-    column_definition_lines.each do |column_set|
-      assert_no_line_up(column_set, /default: /)
-      assert_no_line_up(column_set, /limit: /)
-      assert_no_line_up(column_set, /null: /)
-    end
-  end
-end
-
-class SchemaDumperNoStandardizedTypeWidthsTest < ActiveRecord::TestCase
-  include SchemaDumpingHelper
-
-  setup do
-    ActiveRecord::SchemaDumper.standardized_type_widths = false
-    ActiveRecord::SchemaMigration.create_table
-  end
-
-  teardown do
-    ActiveRecord::SchemaDumper.standardized_type_widths = true
-  end
-
-  def standard_dump
-    @@standard_dump ||= perform_schema_dump
-  end
-
-  def perform_schema_dump
-    dump_all_table_schema []
-  end
-
-  def column_definition_lines(output = standard_dump)
-    output.scan(/^( *)create_table.*?\n(.*?)^\1end/m).map { |m| m.last.split(/\n/) }
-  end
-
-  def test_types_no_line_up
-    column_definition_lines.each do |column_set|
-      next if column_set.empty?
-
-      assert column_set.all? { |column| !column.match(/\bt\.\w+\s{2,}/) }
-    end
-  end
-end
diff --git a/guides/source/configuring.md b/guides/source/configuring.md
index 3e27dfafa0..7239105b29 100644
--- a/guides/source/configuring.md
+++ b/guides/source/configuring.md
@@ -368,11 +368,9 @@ The MySQL adapter adds one additional configuration option:
 
 * `ActiveRecord::ConnectionAdapters::Mysql2Adapter.emulate_booleans` controls whether Active Record will consider all `tinyint(1)` columns as booleans. Defaults to `true`.
 
-The schema dumper adds additional configuration options:
+The schema dumper adds one additional configuration option:
 
 * `ActiveRecord::SchemaDumper.ignore_tables` accepts an array of tables that should _not_ be included in any generated schema file. This setting is ignored unless `config.active_record.schema_format == :ruby`.
-* `ActiveRecord::SchemaDumper.standardized_argument_widths` configures whether colum arguments should be lined up or not in dump. By default this is `true`. This setting is ignored unless `config.active_record.schema_format == :ruby`.
-* `ActiveRecord::SchemaDumper.standardized_type_widths` configures whether colum types should be lined up or not in dump. By default this is `true`. This setting is ignored unless `config.active_record.schema_format == :ruby`.
 
 ### Configuring Action Controller