refactor: move things to packages

internal/updater/generic.go

@@ -0,0 +1,17 @@
+package updater
+
+import (
+	"regexp"
+	"strings"
+)
+
+var GenericUpdaterSemVerRegex = regexp.MustCompile(`\d+\.\d+\.\d+(-[\w.]+)?(.*x-releaser-pleaser-version)`)
+
+func Generic(info ReleaseInfo) Updater {
+	return func(content string) (string, error) {
+		// We strip the "v" prefix to avoid adding/removing it from the users input.
+		version := strings.TrimPrefix(info.Version, "v")
+
+		return GenericUpdaterSemVerRegex.ReplaceAllString(content, version+"${2}"), nil
+	}
+}