148 lines
3.5 KiB
Python
148 lines
3.5 KiB
Python
"""
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Generate a Python extension module with the constants defined in linux/input.h.
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"""
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import getopt
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import os
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import re
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import sys
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# -----------------------------------------------------------------------------
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# The default header file locations to try.
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headers = [
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"/usr/include/linux/input.h",
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"/usr/include/linux/input-event-codes.h",
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"/usr/include/linux/uinput.h",
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]
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opts, args = getopt.getopt(sys.argv[1:], "", ["ecodes", "stubs", "reproducible"])
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if not opts:
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print("usage: genecodes.py [--ecodes|--stubs] [--reproducible] <headers>")
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exit(2)
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if args:
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headers = args
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reproducible = ("--reproducible", "") in opts
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# -----------------------------------------------------------------------------
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macro_regex = r"#define\s+((?:KEY|ABS|REL|SW|MSC|LED|BTN|REP|SND|ID|EV|BUS|SYN|FF|UI_FF|INPUT_PROP)_\w+)"
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macro_regex = re.compile(macro_regex)
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if reproducible:
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uname = "hidden for reproducibility"
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else:
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# Uname without hostname.
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uname = list(os.uname())
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uname = " ".join((uname[0], *uname[2:]))
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# -----------------------------------------------------------------------------
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template_ecodes = r"""
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#include <Python.h>
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#ifdef __FreeBSD__
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#include <dev/evdev/input.h>
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#include <dev/evdev/uinput.h>
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#else
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#include <linux/input.h>
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#include <linux/uinput.h>
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#endif
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/* Automatically generated by evdev.genecodes */
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/* Generated on %s */
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/* Generated from %s */
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#define MODULE_NAME "_ecodes"
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#define MODULE_HELP "linux/input.h macros"
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static PyMethodDef MethodTable[] = {
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{ NULL, NULL, 0, NULL}
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};
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static struct PyModuleDef moduledef = {
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PyModuleDef_HEAD_INIT,
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MODULE_NAME,
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MODULE_HELP,
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-1, /* m_size */
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MethodTable, /* m_methods */
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NULL, /* m_reload */
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NULL, /* m_traverse */
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NULL, /* m_clear */
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NULL, /* m_free */
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};
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PyMODINIT_FUNC
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PyInit__ecodes(void)
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{
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PyObject* m = PyModule_Create(&moduledef);
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if (m == NULL) return NULL;
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%s
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return m;
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}
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"""
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template_stubs = r"""
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# Automatically generated by evdev.genecodes
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# Generated on %s
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# Generated from %s
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# pylint: skip-file
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ecodes: dict[str, int]
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keys: dict[int, str|list[str]]
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bytype: dict[int, dict[int, str|list[str]]]
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KEY: dict[int, str|list[str]]
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ABS: dict[int, str|list[str]]
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REL: dict[int, str|list[str]]
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SW: dict[int, str|list[str]]
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MSC: dict[int, str|list[str]]
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LED: dict[int, str|list[str]]
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BTN: dict[int, str|list[str]]
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REP: dict[int, str|list[str]]
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SND: dict[int, str|list[str]]
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ID: dict[int, str|list[str]]
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EV: dict[int, str|list[str]]
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BUS: dict[int, str|list[str]]
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SYN: dict[int, str|list[str]]
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FF_STATUS: dict[int, str|list[str]]
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FF_INPUT_PROP: dict[int, str|list[str]]
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%s
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"""
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def parse_headers(headers=headers):
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for header in headers:
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try:
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fh = open(header)
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except (IOError, OSError):
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continue
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for line in fh:
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macro = macro_regex.search(line)
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if macro:
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yield macro.group(1)
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all_macros = list(parse_headers())
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if not all_macros:
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print("no input macros found in: %s" % " ".join(headers), file=sys.stderr)
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sys.exit(1)
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# pylint: disable=possibly-used-before-assignment, used-before-assignment
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if ("--ecodes", "") in opts:
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body = (" PyModule_AddIntMacro(m, %s);" % macro for macro in all_macros)
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template = template_ecodes
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elif ("--stubs", "") in opts:
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body = ("%s: int" % macro for macro in all_macros)
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template = template_stubs
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body = os.linesep.join(body)
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text = template % (uname, headers if not reproducible else ["hidden for reproducibility"], body)
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print(text.strip())
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