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Allow METADATA files in pip_repository generated targets #637

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Merged
merged 1 commit into from
Mar 4, 2022
Merged

Allow METADATA files in pip_repository generated targets #637

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1 change: 1 addition & 0 deletions 1 examples/pip_repository_annotations/WORKSPACE
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,7 @@ write_file(
copy_executables = {"@pip_repository_annotations_example//:data/copy_executable.py": "copied_content/executable.py"},
copy_files = {"@pip_repository_annotations_example//:data/copy_file.txt": "copied_content/file.txt"},
data = [":generated_file"],
data_exclude_glob = ["*.dist-info/WHEEL"],
),
}

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28 changes: 28 additions & 0 deletions 28 examples/pip_repository_annotations/pip_repository_annotations_test.py
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Expand Up @@ -64,6 +64,34 @@ def test_copy_executables(self):
stdout = proc.stdout.decode("utf-8").strip()
self.assertEqual(stdout, "Hello world from copied executable")

def test_data_exclude_glob(self):
current_wheel_version = "0.37.1"

r = runfiles.Create()
dist_info_dir = (
"pip_repository_annotations_example/external/{}/wheel-{}.dist-info".format(
self.wheel_pkg_dir(),
current_wheel_version,
)
)

# Note: `METADATA` is important as it's consumed by https://docs.python.org/3/library/importlib.metadata.html
# `METADATA` is expected to be there to show dist-info files are included in the runfiles.
metadata_path = r.Rlocation("{}/METADATA".format(dist_info_dir))
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This is a restored regression test from #626 but has new meaning as it now uses METADATA files to ensure this isn't removed from the data attributes of generated targets.


# However, `WHEEL` was explicitly excluded, so it should be missing
wheel_path = r.Rlocation("{}/WHEEL".format(dist_info_dir))

# Because windows does not have `--enable_runfiles` on by default, the
# `runfiles.Rlocation` results will be different on this platform vs
# unix platforms. See `@rules_python//python/runfiles` for more details.
if platform.system() == "Windows":
self.assertIsNotNone(metadata_path)
self.assertIsNone(wheel_path)
else:
self.assertTrue(Path(metadata_path).exists())
self.assertFalse(Path(wheel_path).exists())


if __name__ == "__main__":
unittest.main()
8 changes: 3 additions & 5 deletions 8 python/pip_install/extract_wheels/lib/bazel.py
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Expand Up @@ -139,12 +139,10 @@ def generate_build_file_contents(
there may be no Python sources whatsoever (e.g. packages written in Cython: like `pymssql`).
"""

# `dist-info` contains non-determinisitc files which can change any time
# the repository rules run. Below is a list of known patterns to these
# files. However, not all files should be ignored as certain packages
# require things like `top_level.txt`.
dist_info_ignores = [
"**/*.dist-info/METADATA",
# RECORD is known to contain sha256 checksums of files which might include the checksums
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Are there known examples this happens in? Some import lib functions fail still because they use data from RECORD, the files() method on a distribution for instance.

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@groodt groodt Jun 1, 2022 •
edited
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I too have been wondering why we're doing so much non-standard unpacking and exclusion of files from wheel packages.

I'm trying to land a change that uses installer to bring some PEP standards into this rule set. See: #715

I think we need a better way to handle non-determinism. I think we need to either make it opt-in somehow, or direct people in how to use a "wheel only" setup (using --only-binary=:all:). If you do that, then the only non-determinism is generated .pyc files, which can be excluded/included via some parameters.

# of generated files produced when wheels are installed. The file is ignored to avoid
# Bazel caching issues.
"**/*.dist-info/RECORD",
]

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