chore: exclude test_ files from published package

[paul-nechifor]

Problem

We ship a lot of test_*.py files. They are useless for the users.

Closes DIM-539

Solution

Don't include them.

[greptile-apps]

Greptile Summary

This PR excludes test_*.py and conftest.py files from the published package by updating both MANIFEST.in (for source distributions) and setup.py (for wheels), using a two-pronged approach that covers all distribution formats.

• MANIFEST.in: Adds two global-exclude directives that strip test and conftest files from sdist archives.
• setup.py: Introduces a build_py subclass overriding find_package_modules to filter test files during wheel builds using fnmatch, then registers it via cmdclass.

Confidence Score: 5/5

Safe to merge — the change only affects which files are bundled into the published package, with no impact on runtime behaviour or source code logic.

Both distribution paths (sdist via MANIFEST.in and wheel via the build_py override) are handled correctly. The fnmatch filter operates on the filename only via os.path.basename, the superclass call is properly chained, and the patterns (test_*.py, conftest.py) precisely target only test artefacts. No production modules are at risk of being accidentally excluded.

No files require special attention.

Important Files Changed

Filename	Overview
MANIFEST.in	Adds global-exclude test_*.py and global-exclude conftest.py to prevent test files from being included in the source distribution (sdist).
setup.py	Adds a custom build_py subclass that overrides find_package_modules to filter out test files during wheel builds, complementing the MANIFEST.in change for sdist.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[pip install / build] --> B{Distribution type?}
    B -->|sdist| C[MANIFEST.in processed]
    B -->|wheel| D[setup.py build_py invoked]

    C --> E["global-exclude test_*.py\nglobal-exclude conftest.py"]
    E --> F[Test files removed from sdist]

    D --> G["build_py.find_package_modules()"]
    G --> H["super().find_package_modules()"]
    H --> I[All .py modules found]
    I --> J{"fnmatch: matches\ntest_*.py or conftest.py?"}
    J -->|Yes| K[Excluded from wheel]
    J -->|No| L[Included in wheel]

Loading

%%{init: {'theme': 'base', 'themeVariables': {"darkMode": true, "background": "#0d1117", "primaryColor": "#21262d", "primaryTextColor": "#e6edf3", "primaryBorderColor": "#8b949e", "lineColor": "#8b949e", "textColor": "#e6edf3", "edgeLabelBackground": "#161b22", "actorBkg": "#21262d", "actorBorder": "#8b949e", "actorTextColor": "#e6edf3", "actorLineColor": "#8b949e", "signalColor": "#8b949e", "signalTextColor": "#e6edf3", "noteBkgColor": "#373320", "noteBorderColor": "#d4a72c", "noteTextColor": "#f0e6c0", "labelBoxBkgColor": "#21262d", "labelBoxBorderColor": "#8b949e", "labelTextColor": "#e6edf3", "loopTextColor": "#e6edf3", "activationBkgColor": "#30363d", "activationBorderColor": "#8b949e"}}}%%
flowchart TD
    A[pip install / build] --> B{Distribution type?}
    B -->|sdist| C[MANIFEST.in processed]
    B -->|wheel| D[setup.py build_py invoked]

    C --> E["global-exclude test_*.py\nglobal-exclude conftest.py"]
    E --> F[Test files removed from sdist]

    D --> G["build_py.find_package_modules()"]
    G --> H["super().find_package_modules()"]
    H --> I[All .py modules found]
    I --> J{"fnmatch: matches\ntest_*.py or conftest.py?"}
    J -->|Yes| K[Excluded from wheel]
    J -->|No| L[Included in wheel]

Loading

_{Reviews (1): Last reviewed commit: "chore: exclude test_ files from publishe..." | Re-trigger Greptile}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

@@           Coverage Diff           @@
##             main    #2706   +/-   ##
=======================================
  Coverage   72.04%   72.04%           
=======================================
  Files         893      893           
  Lines       80728    80728           
  Branches     7310     7310           
=======================================
  Hits        58163    58163           
  Misses      20614    20614           
  Partials     1951     1951           

Flag	Coverage Δ
OS-ubuntu-24.04-arm	64.13% <ø> (-0.01%)	⬇️
OS-ubuntu-latest	66.82% <ø> (ø)
Py-3.10	66.81% <ø> (+<0.01%)	⬆️
Py-3.11	66.81% <ø> (-0.01%)	⬇️
Py-3.12	66.81% <ø> (-0.01%)	⬇️
Py-3.13	66.81% <ø> (-0.01%)	⬇️
Py-3.14	66.83% <ø> (+<0.01%)	⬆️
Py-3.14t	66.82% <ø> (+0.01%)	⬆️
SelfHosted-Large	30.14% <ø> (ø)
SelfHosted-Linux	37.99% <ø> (+<0.01%)	⬆️
SelfHosted-macOS	36.31% <ø> (+0.03%)	⬆️

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