CSMigrator.h
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//
// CSMigrator.h
// CocoaSettings
//
// Created by Yunpeng Li on 2018/5/14.
// Copyright © 2018年 Baidu. All rights reserved.
//
#import <Foundation/Foundation.h>
#import <CocoaSettings/NSDictionary+CSJSONKeyPath.h>
#define CSMigrateUserDefaultsStart \
NSDictionary *willBeMigratedData = nil; \
NSMutableArray *migratedKeys = nil;\
NSMutableDictionary *migratingData = [[NSMutableDictionary alloc] init]
#define CSMigrateUserDefaultsEnd \
_CSMigrateImportData; \
[[NSUserDefaults standardUserDefaults] synchronize]
#define CSMigrateDictionaryStart(DATA) \
NSDictionary *willBeMigratedData = DATA; \
NSMutableArray *migratedKeys = [[NSMutableArray alloc] init]; \
NSMutableDictionary *migratingData = [[NSMutableDictionary alloc] init]
#define CSMigrateDictionaryEnd \
_CSMigrateImportData; \
return migratedKeys
#define _CSMigrateImportData \
do {\
[migratingData enumerateKeysAndObjectsUsingBlock:^(id _Nonnull layerIdentifier, NSDictionary *layerData, BOOL * _Nonnull stop) {\
CSDataLayer *layer = [[CocoaSettings sharedInstance] layerForIdentifier:layerIdentifier];\
[layerData enumerateKeysAndObjectsUsingBlock:^(id _Nonnull key, NSDictionary * values, BOOL * _Nonnull stop) {\
[layer loadSettingsFromDictionary:values forClass:NSClassFromString(key)];\
}];\
}];\
} while(0)
#define CSMigrateToModified(KEY, CLASS, PROPERTY) _CSMigrateTo(KEY, kCSDataLayerIdentifierModified, CLASS, @keypath([CLASS defaults], PROPERTY))
/**
将值写入migratingData， 并将key计入migratedKeys
@param KEY 迁移前对应的Key(可以是JSONPathKey也可以是UserDefault的Key)
@param LAYER_IDENTIFIER 对应Layer的identifier
@param CLASS 目标类
@param SETTINGS_KEY key
*/
#define _CSMigrateTo(KEY, LAYER_IDENTIFIER, CLASS, SETTINGS_KEY) \
do { \
id value; \
if (willBeMigratedData == nil) {\
value = [[NSUserDefaults standardUserDefaults] objectForKey: KEY]; \
} else { \
value = [willBeMigratedData cs_valueForJSONKeyPath:KEY error: NULL]; \
}\
if (value != nil) {\
NSString *key = [NSString stringWithFormat:@"%@.%@.%@", LAYER_IDENTIFIER, @#CLASS, SETTINGS_KEY]; \
[migratingData cs_setValue:value forJSONKeyPath:key error:NULL]; \
if (willBeMigratedData == nil) { \
[[NSUserDefaults standardUserDefaults] removeObjectForKey: KEY]; \
} \
} \
[migratedKeys addObject:KEY]; \
} while(0)
@interface CSMigrator : NSObject
+ (void)migratePlistPath:(NSString *)path migration:(NSArray *(^)(NSDictionary *data))migration completion:(void (^)(NSArray *migratedKeys))completion;
+ (void)migrateDictionary:(NSDictionary *)data migration:(NSArray *(^)(NSDictionary *data))migration completion:(void (^)(NSArray *migratedKeys))completion;
@end