mirror of
https://github.com/python/cpython.git
synced 2024-11-27 15:27:06 +01:00
471 lines
20 KiB
Python
471 lines
20 KiB
Python
"""Module/script to byte-compile all .py files to .pyc files.
|
|
|
|
When called as a script with arguments, this compiles the directories
|
|
given as arguments recursively; the -l option prevents it from
|
|
recursing into directories.
|
|
|
|
Without arguments, it compiles all modules on sys.path, without
|
|
recursing into subdirectories. (Even though it should do so for
|
|
packages -- for now, you'll have to deal with packages separately.)
|
|
|
|
See module py_compile for details of the actual byte-compilation.
|
|
"""
|
|
import os
|
|
import sys
|
|
import importlib.util
|
|
import py_compile
|
|
import struct
|
|
import filecmp
|
|
|
|
from functools import partial
|
|
from pathlib import Path
|
|
|
|
__all__ = ["compile_dir","compile_file","compile_path"]
|
|
|
|
def _walk_dir(dir, maxlevels, quiet=0):
|
|
if quiet < 2 and isinstance(dir, os.PathLike):
|
|
dir = os.fspath(dir)
|
|
if not quiet:
|
|
print('Listing {!r}...'.format(dir))
|
|
try:
|
|
names = os.listdir(dir)
|
|
except OSError:
|
|
if quiet < 2:
|
|
print("Can't list {!r}".format(dir))
|
|
names = []
|
|
names.sort()
|
|
for name in names:
|
|
if name == '__pycache__':
|
|
continue
|
|
fullname = os.path.join(dir, name)
|
|
if not os.path.isdir(fullname):
|
|
yield fullname
|
|
elif (maxlevels > 0 and name != os.curdir and name != os.pardir and
|
|
os.path.isdir(fullname) and not os.path.islink(fullname)):
|
|
yield from _walk_dir(fullname, maxlevels=maxlevels - 1,
|
|
quiet=quiet)
|
|
|
|
def compile_dir(dir, maxlevels=None, ddir=None, force=False,
|
|
rx=None, quiet=0, legacy=False, optimize=-1, workers=1,
|
|
invalidation_mode=None, *, stripdir=None,
|
|
prependdir=None, limit_sl_dest=None, hardlink_dupes=False):
|
|
"""Byte-compile all modules in the given directory tree.
|
|
|
|
Arguments (only dir is required):
|
|
|
|
dir: the directory to byte-compile
|
|
maxlevels: maximum recursion level (default `sys.getrecursionlimit()`)
|
|
ddir: the directory that will be prepended to the path to the
|
|
file as it is compiled into each byte-code file.
|
|
force: if True, force compilation, even if timestamps are up-to-date
|
|
quiet: full output with False or 0, errors only with 1,
|
|
no output with 2
|
|
legacy: if True, produce legacy pyc paths instead of PEP 3147 paths
|
|
optimize: int or list of optimization levels or -1 for level of
|
|
the interpreter. Multiple levels leads to multiple compiled
|
|
files each with one optimization level.
|
|
workers: maximum number of parallel workers
|
|
invalidation_mode: how the up-to-dateness of the pyc will be checked
|
|
stripdir: part of path to left-strip from source file path
|
|
prependdir: path to prepend to beginning of original file path, applied
|
|
after stripdir
|
|
limit_sl_dest: ignore symlinks if they are pointing outside of
|
|
the defined path
|
|
hardlink_dupes: hardlink duplicated pyc files
|
|
"""
|
|
ProcessPoolExecutor = None
|
|
if ddir is not None and (stripdir is not None or prependdir is not None):
|
|
raise ValueError(("Destination dir (ddir) cannot be used "
|
|
"in combination with stripdir or prependdir"))
|
|
if ddir is not None:
|
|
stripdir = dir
|
|
prependdir = ddir
|
|
ddir = None
|
|
if workers < 0:
|
|
raise ValueError('workers must be greater or equal to 0')
|
|
if workers != 1:
|
|
# Check if this is a system where ProcessPoolExecutor can function.
|
|
from concurrent.futures.process import _check_system_limits
|
|
try:
|
|
_check_system_limits()
|
|
except NotImplementedError:
|
|
workers = 1
|
|
else:
|
|
from concurrent.futures import ProcessPoolExecutor
|
|
if maxlevels is None:
|
|
maxlevels = sys.getrecursionlimit()
|
|
files = _walk_dir(dir, quiet=quiet, maxlevels=maxlevels)
|
|
success = True
|
|
if workers != 1 and ProcessPoolExecutor is not None:
|
|
import multiprocessing
|
|
if multiprocessing.get_start_method() == 'fork':
|
|
mp_context = multiprocessing.get_context('forkserver')
|
|
else:
|
|
mp_context = None
|
|
# If workers == 0, let ProcessPoolExecutor choose
|
|
workers = workers or None
|
|
with ProcessPoolExecutor(max_workers=workers,
|
|
mp_context=mp_context) as executor:
|
|
results = executor.map(partial(compile_file,
|
|
ddir=ddir, force=force,
|
|
rx=rx, quiet=quiet,
|
|
legacy=legacy,
|
|
optimize=optimize,
|
|
invalidation_mode=invalidation_mode,
|
|
stripdir=stripdir,
|
|
prependdir=prependdir,
|
|
limit_sl_dest=limit_sl_dest,
|
|
hardlink_dupes=hardlink_dupes),
|
|
files,
|
|
chunksize=4)
|
|
success = min(results, default=True)
|
|
else:
|
|
for file in files:
|
|
if not compile_file(file, ddir, force, rx, quiet,
|
|
legacy, optimize, invalidation_mode,
|
|
stripdir=stripdir, prependdir=prependdir,
|
|
limit_sl_dest=limit_sl_dest,
|
|
hardlink_dupes=hardlink_dupes):
|
|
success = False
|
|
return success
|
|
|
|
def compile_file(fullname, ddir=None, force=False, rx=None, quiet=0,
|
|
legacy=False, optimize=-1,
|
|
invalidation_mode=None, *, stripdir=None, prependdir=None,
|
|
limit_sl_dest=None, hardlink_dupes=False):
|
|
"""Byte-compile one file.
|
|
|
|
Arguments (only fullname is required):
|
|
|
|
fullname: the file to byte-compile
|
|
ddir: if given, the directory name compiled in to the
|
|
byte-code file.
|
|
force: if True, force compilation, even if timestamps are up-to-date
|
|
quiet: full output with False or 0, errors only with 1,
|
|
no output with 2
|
|
legacy: if True, produce legacy pyc paths instead of PEP 3147 paths
|
|
optimize: int or list of optimization levels or -1 for level of
|
|
the interpreter. Multiple levels leads to multiple compiled
|
|
files each with one optimization level.
|
|
invalidation_mode: how the up-to-dateness of the pyc will be checked
|
|
stripdir: part of path to left-strip from source file path
|
|
prependdir: path to prepend to beginning of original file path, applied
|
|
after stripdir
|
|
limit_sl_dest: ignore symlinks if they are pointing outside of
|
|
the defined path.
|
|
hardlink_dupes: hardlink duplicated pyc files
|
|
"""
|
|
|
|
if ddir is not None and (stripdir is not None or prependdir is not None):
|
|
raise ValueError(("Destination dir (ddir) cannot be used "
|
|
"in combination with stripdir or prependdir"))
|
|
|
|
success = True
|
|
fullname = os.fspath(fullname)
|
|
stripdir = os.fspath(stripdir) if stripdir is not None else None
|
|
name = os.path.basename(fullname)
|
|
|
|
dfile = None
|
|
|
|
if ddir is not None:
|
|
dfile = os.path.join(ddir, name)
|
|
|
|
if stripdir is not None:
|
|
fullname_parts = fullname.split(os.path.sep)
|
|
stripdir_parts = stripdir.split(os.path.sep)
|
|
|
|
if stripdir_parts != fullname_parts[:len(stripdir_parts)]:
|
|
if quiet < 2:
|
|
print("The stripdir path {!r} is not a valid prefix for "
|
|
"source path {!r}; ignoring".format(stripdir, fullname))
|
|
else:
|
|
dfile = os.path.join(*fullname_parts[len(stripdir_parts):])
|
|
|
|
if prependdir is not None:
|
|
if dfile is None:
|
|
dfile = os.path.join(prependdir, fullname)
|
|
else:
|
|
dfile = os.path.join(prependdir, dfile)
|
|
|
|
if isinstance(optimize, int):
|
|
optimize = [optimize]
|
|
|
|
# Use set() to remove duplicates.
|
|
# Use sorted() to create pyc files in a deterministic order.
|
|
optimize = sorted(set(optimize))
|
|
|
|
if hardlink_dupes and len(optimize) < 2:
|
|
raise ValueError("Hardlinking of duplicated bytecode makes sense "
|
|
"only for more than one optimization level")
|
|
|
|
if rx is not None:
|
|
mo = rx.search(fullname)
|
|
if mo:
|
|
return success
|
|
|
|
if limit_sl_dest is not None and os.path.islink(fullname):
|
|
if Path(limit_sl_dest).resolve() not in Path(fullname).resolve().parents:
|
|
return success
|
|
|
|
opt_cfiles = {}
|
|
|
|
if os.path.isfile(fullname):
|
|
for opt_level in optimize:
|
|
if legacy:
|
|
opt_cfiles[opt_level] = fullname + 'c'
|
|
else:
|
|
if opt_level >= 0:
|
|
opt = opt_level if opt_level >= 1 else ''
|
|
cfile = (importlib.util.cache_from_source(
|
|
fullname, optimization=opt))
|
|
opt_cfiles[opt_level] = cfile
|
|
else:
|
|
cfile = importlib.util.cache_from_source(fullname)
|
|
opt_cfiles[opt_level] = cfile
|
|
|
|
head, tail = name[:-3], name[-3:]
|
|
if tail == '.py':
|
|
if not force:
|
|
try:
|
|
mtime = int(os.stat(fullname).st_mtime)
|
|
expect = struct.pack('<4sLL', importlib.util.MAGIC_NUMBER,
|
|
0, mtime & 0xFFFF_FFFF)
|
|
for cfile in opt_cfiles.values():
|
|
with open(cfile, 'rb') as chandle:
|
|
actual = chandle.read(12)
|
|
if expect != actual:
|
|
break
|
|
else:
|
|
return success
|
|
except OSError:
|
|
pass
|
|
if not quiet:
|
|
print('Compiling {!r}...'.format(fullname))
|
|
try:
|
|
for index, opt_level in enumerate(optimize):
|
|
cfile = opt_cfiles[opt_level]
|
|
ok = py_compile.compile(fullname, cfile, dfile, True,
|
|
optimize=opt_level,
|
|
invalidation_mode=invalidation_mode)
|
|
if index > 0 and hardlink_dupes:
|
|
previous_cfile = opt_cfiles[optimize[index - 1]]
|
|
if filecmp.cmp(cfile, previous_cfile, shallow=False):
|
|
os.unlink(cfile)
|
|
os.link(previous_cfile, cfile)
|
|
except py_compile.PyCompileError as err:
|
|
success = False
|
|
if quiet >= 2:
|
|
return success
|
|
elif quiet:
|
|
print('*** Error compiling {!r}...'.format(fullname))
|
|
else:
|
|
print('*** ', end='')
|
|
# escape non-printable characters in msg
|
|
encoding = sys.stdout.encoding or sys.getdefaultencoding()
|
|
msg = err.msg.encode(encoding, errors='backslashreplace').decode(encoding)
|
|
print(msg)
|
|
except (SyntaxError, UnicodeError, OSError) as e:
|
|
success = False
|
|
if quiet >= 2:
|
|
return success
|
|
elif quiet:
|
|
print('*** Error compiling {!r}...'.format(fullname))
|
|
else:
|
|
print('*** ', end='')
|
|
print(e.__class__.__name__ + ':', e)
|
|
else:
|
|
if ok == 0:
|
|
success = False
|
|
return success
|
|
|
|
def compile_path(skip_curdir=1, maxlevels=0, force=False, quiet=0,
|
|
legacy=False, optimize=-1,
|
|
invalidation_mode=None):
|
|
"""Byte-compile all module on sys.path.
|
|
|
|
Arguments (all optional):
|
|
|
|
skip_curdir: if true, skip current directory (default True)
|
|
maxlevels: max recursion level (default 0)
|
|
force: as for compile_dir() (default False)
|
|
quiet: as for compile_dir() (default 0)
|
|
legacy: as for compile_dir() (default False)
|
|
optimize: as for compile_dir() (default -1)
|
|
invalidation_mode: as for compiler_dir()
|
|
"""
|
|
success = True
|
|
for dir in sys.path:
|
|
if (not dir or dir == os.curdir) and skip_curdir:
|
|
if quiet < 2:
|
|
print('Skipping current directory')
|
|
else:
|
|
success = success and compile_dir(
|
|
dir,
|
|
maxlevels,
|
|
None,
|
|
force,
|
|
quiet=quiet,
|
|
legacy=legacy,
|
|
optimize=optimize,
|
|
invalidation_mode=invalidation_mode,
|
|
)
|
|
return success
|
|
|
|
|
|
def main():
|
|
"""Script main program."""
|
|
import argparse
|
|
|
|
parser = argparse.ArgumentParser(
|
|
description='Utilities to support installing Python libraries.')
|
|
parser.add_argument('-l', action='store_const', const=0,
|
|
default=None, dest='maxlevels',
|
|
help="don't recurse into subdirectories")
|
|
parser.add_argument('-r', type=int, dest='recursion',
|
|
help=('control the maximum recursion level. '
|
|
'if `-l` and `-r` options are specified, '
|
|
'then `-r` takes precedence.'))
|
|
parser.add_argument('-f', action='store_true', dest='force',
|
|
help='force rebuild even if timestamps are up to date')
|
|
parser.add_argument('-q', action='count', dest='quiet', default=0,
|
|
help='output only error messages; -qq will suppress '
|
|
'the error messages as well.')
|
|
parser.add_argument('-b', action='store_true', dest='legacy',
|
|
help='use legacy (pre-PEP3147) compiled file locations')
|
|
parser.add_argument('-d', metavar='DESTDIR', dest='ddir', default=None,
|
|
help=('directory to prepend to file paths for use in '
|
|
'compile-time tracebacks and in runtime '
|
|
'tracebacks in cases where the source file is '
|
|
'unavailable'))
|
|
parser.add_argument('-s', metavar='STRIPDIR', dest='stripdir',
|
|
default=None,
|
|
help=('part of path to left-strip from path '
|
|
'to source file - for example buildroot. '
|
|
'`-d` and `-s` options cannot be '
|
|
'specified together.'))
|
|
parser.add_argument('-p', metavar='PREPENDDIR', dest='prependdir',
|
|
default=None,
|
|
help=('path to add as prefix to path '
|
|
'to source file - for example / to make '
|
|
'it absolute when some part is removed '
|
|
'by `-s` option. '
|
|
'`-d` and `-p` options cannot be '
|
|
'specified together.'))
|
|
parser.add_argument('-x', metavar='REGEXP', dest='rx', default=None,
|
|
help=('skip files matching the regular expression; '
|
|
'the regexp is searched for in the full path '
|
|
'of each file considered for compilation'))
|
|
parser.add_argument('-i', metavar='FILE', dest='flist',
|
|
help=('add all the files and directories listed in '
|
|
'FILE to the list considered for compilation; '
|
|
'if "-", names are read from stdin'))
|
|
parser.add_argument('compile_dest', metavar='FILE|DIR', nargs='*',
|
|
help=('zero or more file and directory names '
|
|
'to compile; if no arguments given, defaults '
|
|
'to the equivalent of -l sys.path'))
|
|
parser.add_argument('-j', '--workers', default=1,
|
|
type=int, help='Run compileall concurrently')
|
|
invalidation_modes = [mode.name.lower().replace('_', '-')
|
|
for mode in py_compile.PycInvalidationMode]
|
|
parser.add_argument('--invalidation-mode',
|
|
choices=sorted(invalidation_modes),
|
|
help=('set .pyc invalidation mode; defaults to '
|
|
'"checked-hash" if the SOURCE_DATE_EPOCH '
|
|
'environment variable is set, and '
|
|
'"timestamp" otherwise.'))
|
|
parser.add_argument('-o', action='append', type=int, dest='opt_levels',
|
|
help=('Optimization levels to run compilation with. '
|
|
'Default is -1 which uses the optimization level '
|
|
'of the Python interpreter itself (see -O).'))
|
|
parser.add_argument('-e', metavar='DIR', dest='limit_sl_dest',
|
|
help='Ignore symlinks pointing outsite of the DIR')
|
|
parser.add_argument('--hardlink-dupes', action='store_true',
|
|
dest='hardlink_dupes',
|
|
help='Hardlink duplicated pyc files')
|
|
|
|
args = parser.parse_args()
|
|
compile_dests = args.compile_dest
|
|
|
|
if args.rx:
|
|
import re
|
|
args.rx = re.compile(args.rx)
|
|
|
|
if args.limit_sl_dest == "":
|
|
args.limit_sl_dest = None
|
|
|
|
if args.recursion is not None:
|
|
maxlevels = args.recursion
|
|
else:
|
|
maxlevels = args.maxlevels
|
|
|
|
if args.opt_levels is None:
|
|
args.opt_levels = [-1]
|
|
|
|
if len(args.opt_levels) == 1 and args.hardlink_dupes:
|
|
parser.error(("Hardlinking of duplicated bytecode makes sense "
|
|
"only for more than one optimization level."))
|
|
|
|
if args.ddir is not None and (
|
|
args.stripdir is not None or args.prependdir is not None
|
|
):
|
|
parser.error("-d cannot be used in combination with -s or -p")
|
|
|
|
# if flist is provided then load it
|
|
if args.flist:
|
|
try:
|
|
with (sys.stdin if args.flist=='-' else
|
|
open(args.flist, encoding="utf-8")) as f:
|
|
for line in f:
|
|
compile_dests.append(line.strip())
|
|
except OSError:
|
|
if args.quiet < 2:
|
|
print("Error reading file list {}".format(args.flist))
|
|
return False
|
|
|
|
if args.invalidation_mode:
|
|
ivl_mode = args.invalidation_mode.replace('-', '_').upper()
|
|
invalidation_mode = py_compile.PycInvalidationMode[ivl_mode]
|
|
else:
|
|
invalidation_mode = None
|
|
|
|
success = True
|
|
try:
|
|
if compile_dests:
|
|
for dest in compile_dests:
|
|
if os.path.isfile(dest):
|
|
if not compile_file(dest, args.ddir, args.force, args.rx,
|
|
args.quiet, args.legacy,
|
|
invalidation_mode=invalidation_mode,
|
|
stripdir=args.stripdir,
|
|
prependdir=args.prependdir,
|
|
optimize=args.opt_levels,
|
|
limit_sl_dest=args.limit_sl_dest,
|
|
hardlink_dupes=args.hardlink_dupes):
|
|
success = False
|
|
else:
|
|
if not compile_dir(dest, maxlevels, args.ddir,
|
|
args.force, args.rx, args.quiet,
|
|
args.legacy, workers=args.workers,
|
|
invalidation_mode=invalidation_mode,
|
|
stripdir=args.stripdir,
|
|
prependdir=args.prependdir,
|
|
optimize=args.opt_levels,
|
|
limit_sl_dest=args.limit_sl_dest,
|
|
hardlink_dupes=args.hardlink_dupes):
|
|
success = False
|
|
return success
|
|
else:
|
|
return compile_path(legacy=args.legacy, force=args.force,
|
|
quiet=args.quiet,
|
|
invalidation_mode=invalidation_mode)
|
|
except KeyboardInterrupt:
|
|
if args.quiet < 2:
|
|
print("\n[interrupted]")
|
|
return False
|
|
return True
|
|
|
|
|
|
if __name__ == '__main__':
|
|
exit_status = int(not main())
|
|
sys.exit(exit_status)
|