From 8182cb008a60705b06a4bccda760d903a010e75e Mon Sep 17 00:00:00 2001
From: Vasiliy Tolstov <v.tolstov@unistack.org>
Date: Mon, 15 Jan 2024 00:46:00 +0300
Subject: [PATCH] config: add conditions

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
---
 config/default.go | 12 ++++++++++--
 config/options.go |  4 ++++
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/config/default.go b/config/default.go
index 53175018..4b01dfec 100644
--- a/config/default.go
+++ b/config/default.go
@@ -7,8 +7,8 @@ import (
 	"strings"
 	"time"
 
-	"github.com/google/uuid"
 	"dario.cat/mergo"
+	"github.com/google/uuid"
 	"go.unistack.org/micro/v4/options"
 	mid "go.unistack.org/micro/v4/util/id"
 	rutil "go.unistack.org/micro/v4/util/reflect"
@@ -40,6 +40,10 @@ func (c *defaultConfig) Init(opts ...options.Option) error {
 }
 
 func (c *defaultConfig) Load(ctx context.Context, opts ...options.Option) error {
+	if c.opts.SkipLoad != nil && c.opts.SkipLoad(ctx, c) {
+		return nil
+	}
+
 	if err := DefaultBeforeLoad(ctx, c); err != nil && !c.opts.AllowFail {
 		return err
 	}
@@ -292,7 +296,11 @@ func fillValues(valueOf reflect.Value, tname string) error {
 	return nil
 }
 
-func (c *defaultConfig) Save(ctx context.Context, opts ...options.Option) error {
+func (c *defaultConfig) Save(ctx context.Context, _ ...options.Option) error {
+	if c.opts.SkipSave != nil && c.opts.SkipSave(ctx, c) {
+		return nil
+	}
+
 	if err := DefaultBeforeSave(ctx, c); err != nil {
 		return err
 	}
diff --git a/config/options.go b/config/options.go
index eaa8b15e..87c99fc3 100644
--- a/config/options.go
+++ b/config/options.go
@@ -43,6 +43,10 @@ type Options struct {
 	AfterInit []func(context.Context, Config) error
 	// AllowFail flag to allow fail in config source
 	AllowFail bool
+	// SkipLoad runs only if condition returns true
+	SkipLoad func(context.Context, Config) bool
+	// SkipSave runs only if condition returns true
+	SkipSave func(context.Context, Config) bool
 }
 
 // NewOptions new options struct with filed values