Preserve magic comments and content encoding of copied migrations.

During insertion of "# This migration comes from ... " comment at the beginning of
a migration, presence of magic comment was not considered.

2 files changed, 32 insertions, 0 deletions

diff --git a/activerecord/test/cases/migration_test.rb b/activerecord/test/cases/migration_test.rb
index 6f90500189..f8afb7c591 100644
--- a/activerecord/test/cases/migration_test.rb
+++ b/activerecord/test/cases/migration_test.rb
@@ -738,6 +738,26 @@ class CopyMigrationsTest < ActiveRecord::TestCase
     clear
   end
 
+  def test_copying_migrations_preserving_magic_comments
+    ActiveRecord::Base.timestamped_migrations = false
+    @migrations_path = MIGRATIONS_ROOT + "/valid"
+    @existing_migrations = Dir[@migrations_path + "/*.rb"]
+
+    copied = ActiveRecord::Migration.copy(@migrations_path, {:bukkits => MIGRATIONS_ROOT + "/magic"})
+    assert File.exists?(@migrations_path + "/4_currencies_have_symbols.bukkits.rb")
+    assert_equal [@migrations_path + "/4_currencies_have_symbols.bukkits.rb"], copied.map(&:filename)
+
+    expected = "# coding: ISO-8859-15\n# This migration comes from bukkits (originally 1)"
+    assert_equal expected, IO.readlines(@migrations_path + "/4_currencies_have_symbols.bukkits.rb")[0..1].join.chomp
+
+    files_count = Dir[@migrations_path + "/*.rb"].length
+    copied = ActiveRecord::Migration.copy(@migrations_path, {:bukkits => MIGRATIONS_ROOT + "/magic"})
+    assert_equal files_count, Dir[@migrations_path + "/*.rb"].length
+    assert copied.empty?
+  ensure
+    clear
+  end
+
   def test_skipping_migrations
     @migrations_path = MIGRATIONS_ROOT + "/valid_with_timestamps"
     @existing_migrations = Dir[@migrations_path + "/*.rb"]
diff --git a/activerecord/test/migrations/magic/1_currencies_have_symbols.rb b/activerecord/test/migrations/magic/1_currencies_have_symbols.rb
new file mode 100644
index 0000000000..c066c068c2
--- /dev/null
+++ b/activerecord/test/migrations/magic/1_currencies_have_symbols.rb
@@ -0,0 +1,12 @@
+# coding: ISO-8859-15
+
+class CurrenciesHaveSymbols < ActiveRecord::Migration
+  def self.up
+    # We use ¤ for default currency symbol
+    add_column "currencies", "symbol", :string, :default => "¤"
+  end
+
+  def self.down
+    remove_column "currencies", "symbol"
+  end
+end