Remove unused manylinux auto-deduction functions

src/pip/_internal/pep425tags.py

@@ -18,7 +18,6 @@
     mac_platforms,
 )
 
-import pip._internal.utils.glibc
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
@@ -136,94 +135,6 @@ def get_platform():
     return result
 
 
-def is_linux_armhf():
-    # type: () -> bool
-    if get_platform() != "linux_armv7l":
-        return False
-    # hard-float ABI can be detected from the ELF header of the running
-    # process
-    try:
-        with open(sys.executable, 'rb') as f:
-            elf_header_raw = f.read(40)  # read 40 first bytes of ELF header
-    except (IOError, OSError, TypeError):
-        return False
-    if elf_header_raw is None or len(elf_header_raw) < 40:
-        return False
-    if isinstance(elf_header_raw, str):
-        elf_header = [ord(c) for c in elf_header_raw]
-    else:
-        elf_header = [b for b in elf_header_raw]
-    result = elf_header[0:4] == [0x7f, 0x45, 0x4c, 0x46]  # ELF magic number
-    result &= elf_header[4:5] == [1]  # 32-bit ELF
-    result &= elf_header[5:6] == [1]  # little-endian
-    result &= elf_header[18:20] == [0x28, 0]  # ARM machine
-    result &= elf_header[39:40] == [5]  # ARM EABIv5
-    result &= (elf_header[37:38][0] & 4) == 4  # EF_ARM_ABI_FLOAT_HARD
-    return result
-
-
-def is_manylinux1_compatible():
-    # type: () -> bool
-    # Only Linux, and only x86-64 / i686
-    if get_platform() not in {"linux_x86_64", "linux_i686"}:
-        return False
-
-    # Check for presence of _manylinux module
-    try:
-        import _manylinux
-        return bool(_manylinux.manylinux1_compatible)
-    except (ImportError, AttributeError):
-        # Fall through to heuristic check below
-        pass
-
-    # Check glibc version. CentOS 5 uses glibc 2.5.
-    return pip._internal.utils.glibc.have_compatible_glibc(2, 5)
-
-
-def is_manylinux2010_compatible():
-    # type: () -> bool
-    # Only Linux, and only x86-64 / i686
-    if get_platform() not in {"linux_x86_64", "linux_i686"}:
-        return False
-
-    # Check for presence of _manylinux module
-    try:
-        import _manylinux
-        return bool(_manylinux.manylinux2010_compatible)
-    except (ImportError, AttributeError):
-        # Fall through to heuristic check below
-        pass
-
-    # Check glibc version. CentOS 6 uses glibc 2.12.
-    return pip._internal.utils.glibc.have_compatible_glibc(2, 12)
-
-
-def is_manylinux2014_compatible():
-    # type: () -> bool
-    # Only Linux, and only supported architectures
-    platform = get_platform()
-    if platform not in {"linux_x86_64", "linux_i686", "linux_aarch64",
-                        "linux_armv7l", "linux_ppc64", "linux_ppc64le",
-                        "linux_s390x"}:
-        return False
-
-    # check for hard-float ABI in case we're running linux_armv7l not to
-    # install hard-float ABI wheel in a soft-float ABI environment
-    if platform == "linux_armv7l" and not is_linux_armhf():
-        return False
-
-    # Check for presence of _manylinux module
-    try:
-        import _manylinux
-        return bool(_manylinux.manylinux2014_compatible)
-    except (ImportError, AttributeError):
-        # Fall through to heuristic check below
-        pass
-
-    # Check glibc version. CentOS 7 uses glibc 2.17.
-    return pip._internal.utils.glibc.have_compatible_glibc(2, 17)
-
-
 def get_all_minor_versions_as_strings(version_info):
     # type: (Tuple[int, ...]) -> List[str]
     versions = []

tests/unit/test_pep425tags.py

@@ -119,55 +119,6 @@ def test_manual_abi_dm_flags(self):
         self.abi_tag_unicode('dm', {'Py_DEBUG': True, 'WITH_PYMALLOC': True})
 
 
-@pytest.mark.parametrize('is_manylinux_compatible', [
-    pep425tags.is_manylinux1_compatible,
-    pep425tags.is_manylinux2010_compatible,
-    pep425tags.is_manylinux2014_compatible,
-])
-class TestManylinuxTags(object):
-    """
-    Tests common to all manylinux tags (e.g. manylinux1, manylinux2010,
-    ...)
-    """
-    @patch('pip._internal.pep425tags.get_platform', lambda: 'linux_x86_64')
-    @patch('pip._internal.utils.glibc.have_compatible_glibc',
-           lambda major, minor: True)
-    def test_manylinux_compatible_on_linux_x86_64(self,
-                                                  is_manylinux_compatible):
-        """
-        Test that manylinuxes are enabled on linux_x86_64
-        """
-        assert is_manylinux_compatible()
-
-    @patch('pip._internal.pep425tags.get_platform', lambda: 'linux_i686')
-    @patch('pip._internal.utils.glibc.have_compatible_glibc',
-           lambda major, minor: True)
-    def test_manylinux_compatible_on_linux_i686(self,
-                                                is_manylinux_compatible):
-        """
-        Test that manylinuxes are enabled on linux_i686
-        """
-        assert is_manylinux_compatible()
-
-    @patch('pip._internal.pep425tags.get_platform', lambda: 'linux_x86_64')
-    @patch('pip._internal.utils.glibc.have_compatible_glibc',
-           lambda major, minor: False)
-    def test_manylinux_2(self, is_manylinux_compatible):
-        """
-        Test that manylinuxes are disabled with incompatible glibc
-        """
-        assert not is_manylinux_compatible()
-
-    @patch('pip._internal.pep425tags.get_platform', lambda: 'arm6vl')
-    @patch('pip._internal.utils.glibc.have_compatible_glibc',
-           lambda major, minor: True)
-    def test_manylinux_3(self, is_manylinux_compatible):
-        """
-        Test that manylinuxes are disabled on arm6vl
-        """
-        assert not is_manylinux_compatible()
-
-
 class TestManylinux2010Tags(object):
 
     @pytest.mark.parametrize("manylinux2010,manylinux1", [