Index: app/models/issue_import.rb
===================================================================
--- app/models/issue_import.rb	(リビジョン 20154)
+++ app/models/issue_import.rb	(作業コピー)
@@ -179,7 +179,7 @@
         else
           add_callback(parent_issue_id, 'set_as_parent', item.position)
         end
-      elsif parent_issue_id =~ /\A\d+\z/
+      elsif /\A\d+\z/.match?(parent_issue_id)
         # refers to other row by position
         parent_issue_id = parent_issue_id.to_i
 
Index: app/models/setting.rb
===================================================================
--- app/models/setting.rb	(リビジョン 20154)
+++ app/models/setting.rb	(作業コピー)
@@ -186,7 +186,7 @@
     if settings.key?(:mail_from)
       begin
         mail_from = Mail::Address.new(settings[:mail_from])
-        raise unless mail_from.address =~ EmailAddress::EMAIL_REGEXP
+        raise unless EmailAddress::EMAIL_REGEXP.match?(mail_from.address)
       rescue
         messages << [:mail_from, l('activerecord.errors.messages.invalid')]
       end
Index: db/migrate/20120422150750_change_repositories_to_full_sti.rb
===================================================================
--- db/migrate/20120422150750_change_repositories_to_full_sti.rb	(リビジョン 20154)
+++ db/migrate/20120422150750_change_repositories_to_full_sti.rb	(作業コピー)
@@ -3,7 +3,7 @@
     Repository.connection.
          select_rows("SELECT id, type FROM #{Repository.table_name}").
          each do |repository_id, repository_type|
-      unless repository_type =~ /^Repository::/
+      unless /^Repository::/.match?(repository_type)
         Repository.where(["id = ?", repository_id]).
           update_all(["type = ?", "Repository::#{repository_type}"])
       end
Index: db/migrate/20180923082945_change_sqlite_booleans_to_0_and_1.rb
===================================================================
--- db/migrate/20180923082945_change_sqlite_booleans_to_0_and_1.rb	(リビジョン 20154)
+++ db/migrate/20180923082945_change_sqlite_booleans_to_0_and_1.rb	(作業コピー)
@@ -23,7 +23,7 @@
   }
 
   def up
-    if ActiveRecord::Base.connection.adapter_name =~ /sqlite/i
+    if /sqlite/i.match?(ActiveRecord::Base.connection.adapter_name)
       COLUMNS.each do |klass, columns|
         columns.each do |column|
           klass.where("#{column} = 't'").update_all(column => 1)
@@ -34,7 +34,7 @@
   end
 
   def down
-    if ActiveRecord::Base.connection.adapter_name =~ /sqlite/i
+    if /sqlite/i.match?(ActiveRecord::Base.connection.adapter_name)
       COLUMNS.each do |klass, columns|
         columns.each do |column|
           klass.where("#{column} = 1").update_all(column => 't')
Index: db/migrate/20180923091603_change_sqlite_booleans_default.rb
===================================================================
--- db/migrate/20180923091603_change_sqlite_booleans_default.rb	(リビジョン 20154)
+++ db/migrate/20180923091603_change_sqlite_booleans_default.rb	(作業コピー)
@@ -74,7 +74,7 @@
   }
 
   def up
-    if ActiveRecord::Base.connection.adapter_name =~ /sqlite/i
+    if /sqlite/i.match?(ActiveRecord::Base.connection.adapter_name)
       DEFAULTS.each do |table, defaults|
         defaults.each do |column, value|
           # Reset default values for boolean column (t/f => 1/0)
@@ -85,7 +85,7 @@
   end
 
   def down
-    if ActiveRecord::Base.connection.adapter_name =~ /sqlite/i
+    if /sqlite/i.match?(ActiveRecord::Base.connection.adapter_name)
       # Cannot restore default values as t/f
       raise ActiveRecord::IrreversibleMigration
     end
Index: lib/redmine/scm/adapters/bazaar_adapter.rb
===================================================================
--- lib/redmine/scm/adapters/bazaar_adapter.rb	(リビジョン 20154)
+++ lib/redmine/scm/adapters/bazaar_adapter.rb	(作業コピー)
@@ -137,7 +137,7 @@
             revision = nil
             parsing  = nil
             io.each_line do |line|
-              if line =~ /^----/
+              if /^----/.match?(line)
                 revisions << revision if revision
                 revision = Revision.new(:paths => [], :message => '')
                 parsing = nil
@@ -152,7 +152,7 @@
                   revision.scmid = $1.strip
                 elsif line =~ /^timestamp: (.+)$/
                   revision.time = Time.parse($1).localtime
-                elsif line =~ /^    -----/
+                elsif /^    -----/.match?(line)
                   # partial revisions
                   parsing = nil unless parsing == 'message'
                 elsif line =~ /^(message|added|modified|removed|renamed):/
Index: lib/redmine/scm/adapters/cvs_adapter.rb
===================================================================
--- lib/redmine/scm/adapters/cvs_adapter.rb	(リビジョン 20154)
+++ lib/redmine/scm/adapters/cvs_adapter.rb	(作業コピー)
@@ -198,10 +198,10 @@
                   next
                 end
               elsif state == "tags"
-                if /^#{STARTLOG}/ =~ line
+                if /^#{STARTLOG}/.match?(line)
                   commit_log = ""
                   state = "revision"
-                elsif /^#{ENDLOG}/ =~ line
+                elsif /^#{ENDLOG}/.match?(line)
                   state = "head"
                 end
                 next
@@ -232,13 +232,13 @@
                   end
                   commit_log = ""
                   revision   = nil
-                  if /^#{ENDLOG}/ =~ line
+                  if /^#{ENDLOG}/.match?(line)
                     state = "entry_start"
                   end
                   next
                 end
 
-                if /^branches: (.+)$/ =~ line
+                if /^branches: (.+)$/.match?(line)
                   # TODO: version.branch = $1
                 elsif /^revision (\d+(?:\.\d+)+).*$/ =~ line
                   revision = $1
@@ -260,7 +260,7 @@
                   #                  version.line_minus = 0
                   #                end
                 else
-                  commit_log += line unless line =~ /^\*\*\* empty log message \*\*\*/
+                  commit_log += line unless /^\*\*\* empty log message \*\*\*/.match?(line)
                 end
               end
             end
Index: lib/redmine/wiki_formatting/textile/redcloth3.rb
===================================================================
--- lib/redmine/wiki_formatting/textile/redcloth3.rb	(リビジョン 20154)
+++ lib/redmine/wiki_formatting/textile/redcloth3.rb	(作業コピー)
@@ -636,7 +636,7 @@
     end
 
     def lT( text )
-        text =~ /\#$/ ? 'o' : 'u'
+        /\#$/.match?(text) ? 'o' : 'u'
     end
 
     def hard_break( text )
@@ -908,7 +908,7 @@
 
     def refs( text )
         @rules.each do |rule_name|
-            method( rule_name ).call( text ) if rule_name.to_s.match /^refs_/
+            method( rule_name ).call( text ) if rule_name.to_s.match? /^refs_/
         end
     end
 
@@ -1061,9 +1061,9 @@
             text.gsub!( ALLTAG_MATCH ) do |line|
                 ## matches are off if we're between <code>, <pre> etc.
                 if $1
-                    if line =~ OFFTAG_OPEN
+                    if OFFTAG_OPEN.match?(line)
                         codepre += 1
-                    elsif line =~ OFFTAG_CLOSE
+                    elsif OFFTAG_CLOSE.match?(line)
                         codepre -= 1
                         codepre = 0 if codepre < 0
                     end