Merge pull request #65 from numbata/feature/ignore_tables

Add :db_ignore_tables option
Thanks to @rdeshpande

README.markdown

@@ -36,6 +36,12 @@ Add to config/deploy.rb:
     # if you want to remove the dump file from the server after downloading
     set :db_remote_clean, true
 
+    # if you want to exclude table from dump
+    set :db_ignore_tables, []
+
+    # if you want to exclude table data (but not table schema) from dump
+    set :db_ignore_data_tables, []
+
     # If you want to import assets, you can change default asset dir (default = system)
     # This directory must be in your shared directory on the server
     set :assets_dir, %w(public/assets public/att)
@@ -49,6 +55,7 @@ Add to config/deploy.rb:
 
     # if you prefer bzip2/unbzip2 instead of gzip
     set :compressor, :bzip2
+
 ```
 
 Add to .gitignore

lib/capistrano-db-tasks/database.rb

@@ -46,10 +46,6 @@ def output_file
       @output_file ||= "db/#{database}_#{current_time}.sql.#{compressor.file_extension}"
     end
 
-    def pgpass
-      "PGPASSWORD='#{@config['password']}'" if @config['password']
-    end
-
     def compressor
       @compressor ||= begin
         compressor_klass = @cap.fetch(:compressor).to_s.split('_').collect(&:capitalize).join
@@ -60,11 +56,15 @@ def compressor
 
   private
 
+    def pgpass
+      @config['password'] ? "PGPASSWORD='#{@config['password']}'" : ""
+    end
+
     def dump_cmd
       if mysql?
-        "mysqldump #{credentials} #{database} --lock-tables=false"
+        "mysqldump #{credentials} #{database} #{dump_cmd_opts}"
       elsif postgresql?
-        "#{pgpass} pg_dump --no-acl --no-owner #{credentials} #{database}"
+        "#{pgpass} pg_dump #{credentials} #{database} #{dump_cmd_opts}"
       end
     end
 
@@ -77,6 +77,30 @@ def import_cmd(file)
       end
     end
 
+    def dump_cmd_opts
+      if mysql?
+        "--lock-tables=false #{dump_cmd_ignore_tables_opts} #{dump_cmd_ignore_data_tables_opts}"
+      elsif postgresql?
+        "--no-acl --no-owner #{dump_cmd_ignore_tables_opts} #{dump_cmd_ignore_data_tables_opts}"
+      end
+    end
+
+    def dump_cmd_ignore_tables_opts
+      ignore_tables = @cap.fetch(:db_ignore_tables, [])
+      if mysql?
+        ignore_tables.map{ |t| "--ignore-table=#{t}" }.join(" ")
+      elsif postgresql?
+        ignore_tables.map{ |t| "--exclude-table=#{t}" }.join(" ")
+      end
+    end
+
+    def dump_cmd_ignore_data_tables_opts
+      ignore_tables = @cap.fetch(:db_ignore_data_tables, [])
+      if postgresql?
+        ignore_tables.map{ |t| "--exclude-table-data=#{t}" }.join(" ")
+      end
+    end
+
   end
 
   class Remote < Base