ASF GitHub Bot commented on NIFIREG-162:

Github user bbende commented on the issue:

    Thanks @ijokarumawak ! Will review this soon.

> Add Git backed persistence provider
> -----------------------------------
>                 Key: NIFIREG-162
>                 URL: https://issues.apache.org/jira/browse/NIFIREG-162
>             Project: NiFi Registry
>          Issue Type: Improvement
>            Reporter: Koji Kawamura
>            Assignee: Koji Kawamura
>            Priority: Major
> Currently, NiFi Registry provides FileSystemFlowPersistenceProvider, which 
> stores Flow snapshot files into local file system. It simply manages snapshot 
> versions by creating directories with version numbers.
> While it works, there are also demands for using Git as a version control and 
> persistence mechanism.
> A Git backend persistence repository would be beneficial in following aspects:
> * Git is a SCM (Source Control Management) that manages commits, branches, 
> file diffs, patches natively and provide ways to contribute and apply changes 
> among users
> * Local and remote Git repositories can construct a distributed reliable 
> storage
> * There are several Git repository services on the internet which can be used 
> as remote Git repositories those can be used as backup storages
> There are few things with current NiFi Registry framework and existing 
> FileSystemFlowPersistenceProvider those may not be Git friendly:
> * Bucket id and Flow id are UUID and not recognizable by human, if those 
> files have human readable names, many Git commands and tools can be used 
> easier.
> * Current serialized Flow snapshots are binary files having header bytes and 
> XML encoded flow contents. If those are pure ASCII format, Git can provide 
> better diffs among commits, that can provide better UX in terms of 
> controlling Flow snapshot versions
> * NiFi Registry userid which can be used as author in Git commit is not 
> available in FlowSnapshotContext
> Also, if we are going to add another Persistence Provider implementation, we 
> also need to provide a way to migrate existing persisted files so that those 
> can be used by new one.

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