Dynamic group mirroring the file system.

[koppor]

As user, I organize my PDFs in folders. Example:

Related_Work_Collection
├── Quantum_Computing
│   ├── Algorithms
│   │   ├── Quantum_Factorization_Overview.pdf
│   │   └── Grover_Search_Implementation.pdf
│   ├── Error_Correction
│   │   ├── Topological_Qubits_and_Error_Correction.pdf
│   │   └── Quantum_Codec_Principles.pdf
│   └── Hardware
│       └── Superconducting_Qubits_Advancements.pdf
├── Machine_Learning
│   ├── Neural_Networks
│   │   ├── Deep_Learning_Architectures.pdf
│   │   └── CNN_for_Image_Recognition.pdf
│   ├── Reinforcement_Learning
│   │   └── RL_in_Video_Games.pdf
│   └── Natural_Language_Processing
│       ├── BERT_and_Transformers.pdf
│       └── Sentiment_Analysis_Techniques.pdf
└── Environmental_Science
    ├── Climate_Change
    │   └── Impact_of_Climate_Change_on_Biodiversity.pdf
    ├── Renewable_Energy
    │   ├── Solar_Energy_Trends.pdf
    │   └── Wind_Power_Innovations.pdf
    └── Conservation
        ├── Wildlife_Conservation_Strategies.pdf
        └── Marine_Protection_Efforts.pdf

When one wants to have this hierarchy in JabRef, one needs to manually create groups and sub groups.

A new type of group "Directory structure" should be created:

JabRef then mirrors the directory structure in the group tree. Sub groups are automatically created.

Currently: Only inbound mirroring. Use WatchService to watch for changes.

All BibEntries having a file in the selected directory belong to that group.

File added to a folder -> automatically added to the respective group and a new BibEntry created (with PDF import)

Implementation hint:

• A user selects the root directory, all sub groups are automatically updated (created and remved) by JabRef upon file system changes.
• Implement a DirectoryUpdateMonitor (similar to org.jabref.model.util.FileUpdateMonitor) which watches directories and sends updates to the group tree (see third bullet point at Add FileMonitor for LaTeX citations #10937 (comment) in another context)

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Future work:

1. Group moved -> On file system also renames and BibTeX entry "files" field adapted accordingly
2. Group renamed -> On file system also renamed and BibTeX entry "files" field adapted accordingly
3. file moved -> entry assigned to another group BibTeX entry "files" field adapted accordingly

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Related issues:

• PDF file sync should create/use groups based on path jabref-koppor#501
• PDF should be moved to group directory jabref-koppor#502

[Siedlerchr]

The other way round is working:

With file directory pattern, JabRef can automatically create subfolders and move the files into the directory based on the defined pattern. As an example, you have a single folder, e.g. papers for all your PDFs linked to their corresponding entry in JabRef. Now you want to arrange them according to defined groups. Let's say you have two groups, Automation and Biology, with a couple of entries.
Now set the file directory pattern to: [groups:(unknown)]

https://docs.jabref.org/finding-sorting-and-cleaning-entries/filelinks#filename-format-and-file-directory-pattern

[eggestig]

Hi! We are a group of 5 uni students who'd like to try and tackle this issue. We would love to be assigned to this issue and if there's anything extra to help us get started that would be much appreciated as well!