Bundle demo-catalog flow YAMLs for PyInstaller

[Edwardvaneechoud]

Summary

Adds PyInstaller data collection for demo-catalog flow YAML files to ensure they are bundled correctly in the compiled application. Without this, the demo catalog seeding fails at runtime because PyInstaller stores .py files as bytecode only, making relative YAML file lookups inaccessible.

Changes

• New function get_demo_flows_datas(): Collects the demo_flows/ directory from flowfile_core/flowfile_core/catalog/ and maps it for PyInstaller bundling to flowfile_core/catalog/demo_flows in the built application.
• Updated Analysis datas: Adds demo_flows_datas to the PyInstaller Analysis datas list alongside existing data collections (numpy, pyarrow, connectorx, alembic, code_generator, etc.).

Implementation Details

• The function mirrors the pattern of existing data collectors (get_code_generator_datas(), get_alembic_datas()) with a directory existence check.
• Preserves the relative path structure expected by demo_seed.py at runtime, which reads flows via Path(__file__).parent / "demo_flows".
• Ensures demo catalog initialization works correctly in PyInstaller-bundled distributions.

https://claude.ai/code/session_01PWr1cBV6omT7tYQcybqXNH

Summary by CodeRabbit

• New Features
  • Packaged builds now include demo flow examples, so the app can ship with the full set of demo catalog content available out of the box.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 6d14a9ae-ad06-43f2-ab18-a4ec7d7982fb

📥 Commits

Reviewing files that changed from the base of the PR and between b21f518 and 631dee7.

📒 Files selected for processing (1)

• build_backends/build_backends/main.py

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📝 Walkthrough

Walkthrough

The PyInstaller spec generator in build_backends/build_backends/main.py gains a get_demo_flows_datas() helper embedded in the generated spec string. It locates flowfile_core/flowfile_core/catalog/demo_flows and returns it as a PyInstaller datas tuple when present. The result is appended to the Analysis(datas=...) list so demo flow YAMLs are bundled in the built application.

Changes

Demo-catalog YAML bundling in PyInstaller spec

Layer / File(s)	Summary
Add demo_flows_datas helper and wire into Analysis build_backends/build_backends/main.py	Embeds get_demo_flows_datas() in the generated spec string to collect demo-catalog YAMLs from flowfile_core/.../catalog/demo_flows when the directory exists, and includes the result in the Analysis(datas=...) composition.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐇 Hop hop, the YAML files are packed,
Demo flows now neatly stacked,
A helper checks the folder's there,
Then bundles everything with care.
No flow left behind — that's a fact! 🌟

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes the main change: packaging demo-catalog flow YAMLs into the PyInstaller build.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch claude/relaxed-turing-cw53ie

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