release: cleanup patch, minor, major

lib/release/new_version.rb

@@ -0,0 +1,44 @@
+require_relative './base'
+
+module Release
+
+  class NewVersion < Release::Base
+    def valid?
+      argv.size > 1
+    end
+
+    def help
+      "release #{subcommand_name} version"
+    end
+
+    def execute
+      subcommand, version, *extras = *argv
+
+      validate_version_format version
+
+      validate_current_branch_master
+      git_pull current_branch
+
+      validate_version_exists version
+
+      new_branch = increment_version(version)
+      validate_release_branch_does_not_exist(new_branch)
+
+      git_local_branch_create new_branch, "v#{version}"
+
+      git_push new_branch
+    end
+
+    private
+
+    def subcommand_name
+      error "override"
+    end
+
+    def increment_version (version)
+      error "override"
+    end
+
+  end
+
+end