v0.2.0 - Schema Diff

Schema Diff

New \gdbviz diff\ command compares two geodatabase schema snapshots and reports exactly what changed.

What's New

• Schema diff command: \gdbviz diff --before v1.json --after v2.json\
• Node-level changes: added, removed, modified nodes with property-level diffs
• Edge-level changes: added and removed relationships
• Multiple output formats: terminal (rich tables), JSON, Markdown
• CI-automation friendly: JSON output with structured summary for scripting

Usage

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Extract two snapshots

gdbviz extract -p old.gdb -f json -o before.json
gdbviz extract -p new.gdb -f json -o after.json

Compare

gdbviz diff --before before.json --after after.json

Save as Markdown report

gdbviz diff -b before.json -a after.json -o changes.md

Save as JSON for CI

gdbviz diff -b before.json -a after.json -f json -o diff.json
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Full Changelog

• Add schema diff engine (\gdbviz/diff.py) with structured diff model
• Add \diff\ CLI command with terminal, JSON, and Markdown output
• Add 18 new tests for diff engine (95 total)
• Update roadmap to reflect v0.2.0 as current release

v0.1.0

gdb-visualizer v0.1.0

First public release.

Features

• CLI extraction from ArcGIS geodatabases (arcpy full + GDAL/OGR basic)
• 5 export formats: JSON, Mermaid, PlantUML, Graphviz DOT, Markdown
• D3.js interactive visualization with force-directed graph, dark theme, format tabs
• Esri Schema Report integration for large schemas
• Dual extraction backends: ArcGIS Pro (full) and GDAL (basic, no ArcGIS needed)

CLI Commands

• \gdbviz extract\ — extract schema + export to any format
• \gdbviz visualize\ — serve D3.js visualization in browser
• \gdbviz demo\ — run with sample schema
• \gdbviz formats\ — list available formats
• \gdbviz extractors\ — list extraction backends

Install

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pip install gdb-visualizer
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Requirements

• Python 3.10+
• ArcGIS Pro (optional, for full extraction) or GDAL (for basic extraction)