Add Bundle Graph visualization view to bndtools

[Copilot]

Adds a new Bundle Graph Eclipse ViewPart that renders a MermaidJS dependency graph of OSGi bundles in a bndtools workspace, with an interactive dual-list selection builder.

Model layer (bndtools.views.bundlegraph.model)

• BundleNode — record keyed on bsn + version (identity excludes projectName metadata so cross-provider nodes compare equal)
• BundleEdge(from, to, boolean optional) — edge is optional iff all contributing Import-Package entries carry resolution:=optional
• BundleGraphModel interface — nodes(), edges(), nodeToJar(); SimpleBundleGraphModel is the single concrete implementation
• GraphClosures — BFS transitive closure for dependencies / dependants

Dependency calculation (ManifestDependencyCalculator)

Reads MANIFEST.MF from each bundle's generated JAR via aQute.bnd.osgi.Jar.getManifest() + Domain.domain():

• Builds package → Set<BundleNode> exporter map (supports split packages / fragments — all co-exporters receive edges)
• Emits BundleEdge per (importer, exporter) pair, tracking optionality per contributing import
• Stored as nodeToJar: Map<BundleNode, File> in the model; mergeIntoUniverse() always recomputes edges over the full merged jar map so cross-provider edges (e.g. project node added to a repo universe) are never missed

Universe providers

Provider	Input	Notes
ProjectUniverseProvider	List<IProject>	Resolves JAR via Project.getOutputFile()
BndrunUniverseProvider	IFile (.bndrun)	Parses -runbundles via existing bnd APIs
RepositoryUniverseProvider	List<RepositoryPlugin>	Downloads JARs via repo.get() for all BSN/version pairs

View (BundleGraphView)

• Vertical SashForm: top = selection builder, bottom = embedded SWT Browser (MermaidJS bundled locally at resources/unprocessed/mermaid/mermaid.min.js — no CDN required)
• Available bundles list with Delete/Remove button; Selected bundles list with double-click-to-remove and Ctrl+C copy
• Toolbar: Refresh Universe, Add from Repositories (additive merge), Copy Mermaid to Clipboard, Toggle Graph Maximized
• Edge filter combo: All / Only mandatory / Only optional — when not ALL, nodes with no visible edges are hidden, and secondary↔secondary edges are suppressed (only edges touching a primary/seed node are shown)
• Primary (seed) nodes styled differently from secondary (dependency/dependant) nodes via MermaidJS classDef; optional edges rendered as dotted arrows (-.->)
• Zoom controls: − / combo (25 %–200 %) / +, implemented via window.setZoom(scale) scaling a #scaler div inside a scrollable #viewport

Drag-and-drop

Both lists accept drops from:

• Package Explorer / Navigator: .bndrun files → BndrunUniverseProvider; IProject resources → ProjectUniverseProvider
• Repositories view: RepositoryBundleVersion, RepositoryBundle (latest version), RepositoryPlugin (whole repo)

Drop on Available → merges into universe; drop on Selected → merges into universe and adds to selected set. After any merge the full edge set is recomputed over the combined jar map.

Context-menu integration (ShowBundleGraphHandler)

• Right-click .bndrun → Show Bundle Graph (seeds universe + selection from -runbundles)
• Right-click project(s) → Show Bundle Graph (seeds universe from project JARs)
• View supports allowMultiple="true" — each invocation opens a new instance with a unique secondary ID

Rendering (MermaidRenderer)

// EdgeFilter controls what edges (and their nodes) appear:
MermaidRenderer.toMermaid(model, subset, primaryNodes, EdgeFilter.ONLY_MANDATORY);
// → mandatory solid arrows -->, optional dotted arrows -.->
// → secondary↔secondary edges suppressed when primaryNodes non-empty
// → disconnected nodes hidden under ONLY_MANDATORY / ONLY_OPTIONAL

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• bndtools.jfrog.io
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.util.concurrent=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED --add-opens=java.xml/javax.xml.namespace=ALL-UNNAMED --add-opens=java.base/java.time=ALL-UNNAMED -Xms1024m -Xmx2048m -Dfile.encoding=UTF-8 -Duser.country -Duser.language=en (dns block)
• scans-in.gradle.com
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.util.concurrent=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED --add-opens=java.xml/javax.xml.namespace=ALL-UNNAMED --add-opens=java.base/java.time=ALL-UNNAMED -Xms1024m -Xmx2048m -Dfile.encoding=UTF-8 -Duser.country -Duser.language=en (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

---

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[Copilot]

Pull request overview

Adds a new Bundle Graph visualization feature to the bndtools.core Eclipse plugin, including a model layer, universe providers (workspace projects, .bndrun, repositories), manifest-based dependency calculation, and MermaidJS-based rendering inside an SWT Browser.

Changes:

• Introduces bundle graph model types (BundleNode, BundleEdge, BundleGraphModel) plus closure utilities for dependencies/dependants.
• Implements universe providers and a view (BundleGraphView) with drag-and-drop, repository loading, edge filtering, and zoom.
• Adds Mermaid rendering + unit tests for closures, rendering modes, and manifest dependency optionality.

Reviewed changes

Copilot reviewed 20 out of 21 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
bndtools.core/test/bndtools/views/bundlegraph/MermaidRendererTest.java	Unit tests for Mermaid rendering modes, styling, and edge filtering
bndtools.core/test/bndtools/views/bundlegraph/ManifestDependencyCalculatorTest.java	Unit tests for dependency calculation and optional-edge behavior
bndtools.core/test/bndtools/views/bundlegraph/GraphClosuresTest.java	Unit tests for dependency/dependant closure logic and node identity semantics
bndtools.core/src/bndtools/views/bundlegraph/render/MermaidRenderer.java	Converts graph subsets into Mermaid definitions (styling + filters)
bndtools.core/src/bndtools/views/bundlegraph/render/EdgeFilter.java	Defines edge filtering options (all/mandatory/optional)
bndtools.core/src/bndtools/views/bundlegraph/model/SimpleBundleGraphModel.java	Concrete model implementation storing nodes/edges/jar map
bndtools.core/src/bndtools/views/bundlegraph/model/GraphClosures.java	BFS closure helper over dependencies/dependants
bndtools.core/src/bndtools/views/bundlegraph/model/BundleNode.java	Node identity semantics (bsn+version) with projectName metadata
bndtools.core/src/bndtools/views/bundlegraph/model/BundleGraphModel.java	Model interface, with default edges() and nodeToJar()
bndtools.core/src/bndtools/views/bundlegraph/model/BundleEdge.java	Edge type including optionality flag
bndtools.core/src/bndtools/views/bundlegraph/RepositoryUniverseProvider.java	Builds a model from selected bnd repositories
bndtools.core/src/bndtools/views/bundlegraph/RepositorySelectionDialog.java	UI dialog to select repositories to import into the universe
bndtools.core/src/bndtools/views/bundlegraph/ProjectUniverseProvider.java	Builds a model from selected Eclipse projects
bndtools.core/src/bndtools/views/bundlegraph/ManifestDependencyCalculator.java	Manifest-driven Import/Export-Package dependency + optionality computation
bndtools.core/src/bndtools/views/bundlegraph/BundleGraphView.java	Eclipse view: selection builder + embedded Mermaid browser renderer
bndtools.core/src/bndtools/views/bundlegraph/BundleGraphDropAdapter.java	Drag-and-drop support for .bndrun, projects, and repository items
bndtools.core/src/bndtools/views/bundlegraph/BndrunUniverseProvider.java	Builds a model from -runbundles in a .bndrun
bndtools.core/src/bndtools/command/ShowBundleGraphHandler.java	Command handler to open/populate the Bundle Graph view
bndtools.core/resources/unprocessed/mermaid/LICENSE-mermaid.txt	Adds Mermaid MIT license text for bundled MermaidJS
bndtools.core/_plugin.xml	Registers the view, command, handler, and context-menu contributions

[chrisrueger]

Current state which is ready for master.

Last thing I added support for drag&drop from Repositories, Projects or .bndrun files into the Graph lists.