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hooks: pkg_resources: implement support for package content listing #5284

Merged
merged 6 commits into from Mar 23, 2021
Merged

hooks: pkg_resources: implement support for package content listing #5284

merged 6 commits into from Mar 23, 2021

Commits on Mar 3, 2021

  1. tests: add test for pkg_resources package content listing 

    The test script tests for behavior of resource_exists(), resource_isdir(),
and resource_listdir() functions from pkg_resources package (which
in turn call the methods with same name in the provider class).

The idea is to run the test script twice, once as unfrozen python
script and once as a frozen program. In both cases, the test package
is once present as a plain package directory and once as a zipped egg
(generated on-the-fly from the source directory).

This way, we test behavior of the original provider (DefaultProvider
or ZipProvider) and the provider used within the frozen application
(which we will need to implement to replace the currently used
NullProvider).
    @rokm
    rokm committed Mar 3, 2021
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  2. hooks: pkg_resources: implement custom pkg_resources provider 

    Implement PyiFrozenProvider that subclasses NullProvider from
pkg_resources and provides _has(), _isdir(), and _listdir()
methods. The implementation of these methods supports both
PYZ-embedded and on-filesystem resources, in that order of
precedence.
    @rokm
    rokm committed Mar 3, 2021
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  3. hooks: pkg_resources: prevent duplication of directories in _listdir() 

    Because a directory may exist as both an embedded and on-filesystem
resource, we need to de-duplicate the results when listing the
filesystem in addition to embedded tree.
    @rokm
    rokm committed Mar 3, 2021
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  4. hooks: pkg_resources: defer embedded resource tree initialization to … 

    …first use
    @rokm
    rokm committed Mar 3, 2021
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  5. hooks: pkg_resources: implement caching for embedded-resource trees

    @rokm
    rokm committed Mar 3, 2021
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  6. hooks: pkg_resources: improve documentation 

    Add a block describing basic behavior of PyiFrozenProvider, w.r.t.
to PYZ-embedded and on-filesystem resources.
    @rokm
    rokm committed Mar 3, 2021
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