tmdl-diff 1.1.0

Professional CLI tool for comparing Power BI TMDL and PBIP project files with semantic diff.

TMDL-DIFF CLI

Stop hunting for broken visuals. Start comparing.

tmdl-diff is a high-level semantic comparison tool for Power BI developers. It compares TMDL (Tabular Model Definition Language) and PBIP (Power BI Project) files to instantly identify structural changes that break reports.

✨ Key Value

• Visual Integrity: Quickly see if a structural change (like a rename) will impact your report visuals.
• Semantic Diff: Goes beyond text comparison to understand Tables, Measures, and Columns.
• CLI Speed: No need to open heavy PBIX files just to see what's different between versions.
• Live Detection: Identify and inspect open Power BI Desktop instances on your machine.

📦 Installation

pip install tmdl-diff

🚀 Quick Usage

1. Compare two Project Files (.pbip)

tmdl-diff diff version1.pbip version2.pbip

2. List Open Instances & Files

tmdl-diff list

3. Interactive Comparison

tmdl-diff compare

Note: For the best experience, run tmdl-diff from the directory where your .tmdl or .pbip files are located. While the tool supports absolute paths (even across different drives), placing your snapshots in the current working directory allows for faster selection and automatic folder detection.

🖼️ Visual Preview

📄 License

MIT