Migrate library fields after confirmation. Store selected migration preference inside library

[koppor]

I claim: If one opens a .bib file with JabRef, save it and close it, the file is not modified

However, JabRef migrates the field review to comment without any user information. This should not happen.

Proposal:

1. In case JabRef wants to do a migration, then it asks for the user (example: pdf field)
2. The answer to the migration choice should be stored in the library

Note on 1: A list of migrations to be performed would be nice. The user can then add and remove migrations on demand.

Links:

• Pre-condition: New format for meta data: jabref-meta storage in bib file should be improved (by switching to embedded JSON) #10371
• This (somehow) contributes to Generic way to store preferences in .bib file / self-contained library settings #8701
• Alternative: Do not migrate review to comment if review is a customized field. Long explanation at Rename the Review Tab into Comments Tab #3658 (comment) (not chosen as I really opt for transparency)
• Other migration WTF example: https://discourse.jabref.org/t/convert-timestamp-to-creationdate-in-5-3/2787?u=koppor

[koppor]

As far as I remember, the decision to automatically migrate review was done, because our check in 2015 revealed that review was a custom JabRef field and not used by any other software. We also wanted to streamline the code and support only the latest release version of JabRef.

[koppor]

Code:

jabref/src/main/java/org/jabref/gui/importer/actions/OpenDatabaseAction.java

Line 55 in c444c73

new MergeReviewIntoCommentAction(),

and

jabref/src/main/java/org/jabref/logic/importer/OpenDatabase.java

Line 33 in c444c73

private static void performLoadDatabaseMigrations(ParserResult parserResult,

[koppor]

Implementation hints were given at #3658 (comment). Follow-up at #3733.

[koppor]

Code merging the fields at org.jabref.migrations.MergeReviewIntoCommentMigration.

[koppor]

Code is in org.jabref.gui.importer.actions.OpenDatabaseAction

    private static final List<GUIPostOpenAction> POST_OPEN_ACTIONS = List.of(
            // Migrations:
            // Warning for migrating the Review into the Comment field
            new MergeReviewIntoCommentAction(),