def read_manifest():
<EOL>if not os.path.isfile('<STR_LIT>'):<EOL><INDENT>return<EOL><DEDENT>with open('<STR_LIT>') as manifest:<EOL><INDENT>contents = manifest.read()<EOL><DEDENT>ignore, ignore_regexps = _get_ignore_from_manifest(contents)<EOL>IGNORE.extend(ignore)<EOL>IGNORE_REGEXPS.extend(ignore_regexps)<EOL>
Read existing configuration from MANIFEST.in.

    We use that to ignore anything the MANIFEST.in ignores.