ExportFormats: Use FileExtension enum

[Siedlerchr]

Export Formats should use the FileExtensions Enum (analog to import), too

[PJozeph]

Can I have this issue ? @Siedlerchr

[tobiasdiez]

@PJozeph sure! Let us know if you need help on the way (either ask here in this issue or open a PR with your preliminary code).

[PJozeph]

okay, i'm on it

[PJozeph]

Do I understood it right that in the ExportFormats class the EXPORT_FORMATS map needs to hold FileExtensions values ? @tobiasdiez

[tobiasdiez]

Yes. The extension in ExportFormat

jabref/src/main/java/org/jabref/logic/exporter/ExportFormat.java

Line 41 in 07652a9

private String extension;

should not be a string but an instance of FileExtensions.

[PJozeph]

im done, is there a documentation how to proceed push ? I did not find it on wiki. @tobiasdiez

[tobiasdiez]

Nice, that was quick! We have some general comments in https://github.com/JabRef/jabref/blob/master/CONTRIBUTING.md but in the end it boils down to the typical steps to contribute code: you push the changes to your own branch and create a pullrequest here on github.

[tobiasdiez]

Implemented by #3565