/usr/lib/python3.7/compileall.py is in libpython3.7-minimal 3.7.0~b3-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 | """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, if 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
try:
from concurrent.futures import ProcessPoolExecutor
except ImportError:
ProcessPoolExecutor = None
from functools import partial
__all__ = ["compile_dir","compile_file","compile_path"]
def _walk_dir(dir, ddir=None, maxlevels=10, 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 ddir is not None:
dfile = os.path.join(ddir, name)
else:
dfile = None
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, ddir=dfile,
maxlevels=maxlevels - 1, quiet=quiet)
def compile_dir(dir, maxlevels=10, ddir=None, force=False, rx=None,
quiet=0, legacy=False, optimize=-1, workers=1,
invalidation_mode=py_compile.PycInvalidationMode.TIMESTAMP):
"""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 10)
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: optimization level or -1 for level of the interpreter
workers: maximum number of parallel workers
invalidation_mode: how the up-to-dateness of the pyc will be checked
"""
if workers is not None and workers < 0:
raise ValueError('workers must be greater or equal to 0')
files = _walk_dir(dir, quiet=quiet, maxlevels=maxlevels,
ddir=ddir)
success = True
if workers is not None and workers != 1 and ProcessPoolExecutor is not None:
workers = workers or None
with ProcessPoolExecutor(max_workers=workers) as executor:
results = executor.map(partial(compile_file,
ddir=ddir, force=force,
rx=rx, quiet=quiet,
legacy=legacy,
optimize=optimize,
invalidation_mode=invalidation_mode),
files)
success = min(results, default=True)
else:
for file in files:
if not compile_file(file, ddir, force, rx, quiet,
legacy, optimize, invalidation_mode):
success = False
return success
def compile_file(fullname, ddir=None, force=False, rx=None, quiet=0,
legacy=False, optimize=-1,
invalidation_mode=py_compile.PycInvalidationMode.TIMESTAMP):
"""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: optimization level or -1 for level of the interpreter
invalidation_mode: how the up-to-dateness of the pyc will be checked
"""
success = True
if quiet < 2 and isinstance(fullname, os.PathLike):
fullname = os.fspath(fullname)
name = os.path.basename(fullname)
if ddir is not None:
dfile = os.path.join(ddir, name)
else:
dfile = None
if rx is not None:
mo = rx.search(fullname)
if mo:
return success
if os.path.isfile(fullname):
if legacy:
cfile = fullname + 'c'
else:
if optimize >= 0:
opt = optimize if optimize >= 1 else ''
cfile = importlib.util.cache_from_source(
fullname, optimization=opt)
else:
cfile = importlib.util.cache_from_source(fullname)
cache_dir = os.path.dirname(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)
with open(cfile, 'rb') as chandle:
actual = chandle.read(12)
if expect == actual:
return success
except OSError:
pass
if not quiet:
print('Compiling {!r}...'.format(fullname))
try:
ok = py_compile.compile(fullname, cfile, dfile, True,
optimize=optimize,
invalidation_mode=invalidation_mode)
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
msg = err.msg.encode(sys.stdout.encoding,
errors='backslashreplace')
msg = msg.decode(sys.stdout.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=py_compile.PycInvalidationMode.TIMESTAMP):
"""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=10, 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('-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', default='timestamp',
choices=sorted(invalidation_modes),
help='How the pycs will be invalidated at runtime')
args = parser.parse_args()
compile_dests = args.compile_dest
if args.rx:
import re
args.rx = re.compile(args.rx)
if args.recursion is not None:
maxlevels = args.recursion
else:
maxlevels = args.maxlevels
# if flist is provided then load it
if args.flist:
try:
with (sys.stdin if args.flist=='-' else open(args.flist)) 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.workers is not None:
args.workers = args.workers or None
ivl_mode = args.invalidation_mode.replace('-', '_').upper()
invalidation_mode = py_compile.PycInvalidationMode[ivl_mode]
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):
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):
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)
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