##### SUMMARY
If you have executable files in your source code they are not kept in the tarball.

Could be related to https://github.com/ansible/ansible/blob/99d7f150873011e7515851db9b44ff486efa9d77/lib/ansible/galaxy/collection.py#L763

This was noticed as I had some auxiliary scripts in my repo.

Need to also consider scripts in `files/` if/when Collections support roles.

This seems to fail the "principal of least suprise"

**Proposal 1: Keep on stripping executable flags**

Add some line to the output
`WARNING: tests/coverage.sh: source file has executable flag, though this will be ignored in generated tar.gz`
Update developing a collection documentation page
Update integration tests to ensure that executable mode is always stripped.
Update code to link to this issue

**Proposal 2: Allow executible flags**

Update developing a collection documentation page
Update integration tests to ensure that executable mode is preserved
Update code to link to this issue
Changelog


##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
ansible-galaxy

##### ANSIBLE VERSION
```paste below
2.10
```

##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->

<!--- Paste example playbooks or commands between quotes below -->
```yaml

```

<!--- HINT: You can paste gist.github.com links for larger files -->


install_path = to_text(tmp_path_factory.mktemp('test-ÅÑŚÌβŁÈ Collections'))
    expected = "Invalid collection name '%s', name must be in the format <namespace>.<collection>" % expected
    gc = GalaxyCLI(args=['ansible-galaxy', 'collection', 'install', name, '-p', os.path.join(install_path, 'install')])
    with pytest.raises(AnsibleError, match=expected):
        gc.run()
@pytest.mark.parametrize('collection_skeleton', [
    ('ansible_test.build_collection', None),
], indirect=True)
def test_collection_build(collection_artifact):
    tar_path = os.path.join(collection_artifact, 'ansible_test-build_collection-1.0.0.tar.gz')
    assert tarfile.is_tarfile(tar_path)
    with tarfile.open(tar_path, mode='r') as tar:
        tar_members = tar.getmembers()
        valid_files = ['MANIFEST.json', 'FILES.json', 'roles', 'docs', 'plugins', 'plugins/README.md', 'README.md']
        assert len(tar_members) == 7
        # Verify the uid and gid is 0 and the correct perms are set
        for member in tar_members:
            assert member.name in valid_files
            assert member.gid == 0
            assert member.gname == ''
            assert member.uid == 0
            assert member.uname == ''
            if member.isdir():
                assert member.mode == 0o0755