51 lines
1.2 KiB
Markdown
51 lines
1.2 KiB
Markdown
# 27. Implement Config File Backup on Update
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meta:
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id: config-persistence-27
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feature: config-persistence
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priority: P2
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depends_on: [config-persistence-26]
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tags: [backup, data-safety, migration]
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objective:
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- Create backups of config files before updates
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- Handle config file changes during app updates
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- Provide rollback capability if needed
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deliverables:
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- Config backup utility
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- Backup on config changes
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- Config version history
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steps:
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1. Create config backup function
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2. Implement backup on config save
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3. Add config version history management
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4. Test backup and restore scenarios
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5. Add config file version display
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tests:
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- Unit: Test backup function
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- Integration: Test backup on config save
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- Manual: Test restore from backup
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acceptance_criteria:
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- Config files are backed up before updates
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- Backup preserves data integrity
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- Config version history is maintained
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validation:
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- Make config changes
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- Verify backup created
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- Restart app and check backup
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- Test restore from backup
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notes:
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- Backup file naming: feeds.json.backup, themes.json.backup
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- Keep last N backups (e.g., 5)
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- Backup timestamp in filename
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- Use atomic file operations
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- Test with large config files
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- Add config file size tracking
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- Consider automatic cleanup of old backups
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