Function macos_patch

pipcl.py:2611–2652

If running on MacOS, patches `library` so that all references to items in `sublibraries` are changed to `@rpath/{leafname}`. Does nothing on other platforms. library: Path of shared library. sublibraries: List of paths of shared libraries; these have typically b

( library, *sublibraries)

def macos_patch( library, *sublibraries):
    '''
    If running on MacOS, patches `library` so that all references to items in
    `sublibraries` are changed to `@rpath/{leafname}`. Does nothing on other
    platforms.

    library:
        Path of shared library.
    sublibraries:
        List of paths of shared libraries; these have typically been
        specified with `-l` when `library` was created.
    '''
    log2( f'macos_patch(): library={library}  sublibraries={sublibraries}')
    if not darwin():
        return
    if not sublibraries:
        return
    subprocess.run( f'otool -L {library}', shell=1, check=1)
    command = 'install_name_tool'
    names = []
    for sublibrary in sublibraries:
        name = subprocess.run(
                f'otool -D {sublibrary}',
                shell=1,
                check=1,
                capture_output=1,
                encoding='utf8',
                ).stdout.strip()
        name = name.split('\n')
        assert len(name) == 2 and name[0] == f'{sublibrary}:', f'{name=}'
        name = name[1]
        # strip trailing so_name.
        leaf = os.path.basename(name)
        m = re.match('^(.+[.]((so)|(dylib)))[0-9.]*$', leaf)
        assert m
        log2(f'Changing {leaf=} to {m.group(1)}')
        leaf = m.group(1)
        command += f' -change {name} @rpath/{leaf}'
    command += f' {library}'
    log2( f'Running: {command}')
    subprocess.run( command, shell=1, check=1)
    subprocess.run( f'otool -L {library}', shell=1, check=1)


def _macos_fixup_platform_tag(tag):