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@@ -0,0 +1,508 @@
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+ """Module/script to byte-compile all .py files to .pyc files.
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+
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+ When called as a script with arguments, this compiles the directories
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+ given as arguments recursively; the -l option prevents it from
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+ recursing into directories.
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+
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+ Without arguments, if compiles all modules on sys.path, without
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+ recursing into subdirectories. (Even though it should do so for
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+ packages -- for now, you'll have to deal with packages separately.)
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+
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+ See module py_compile for details of the actual byte-compilation.
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+
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+ License:
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+ Compileall2 is an enhanced copy of Python's compileall module
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+ and it follows Python licensing. For more info see: https://www.python.org/psf/license/
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+ """
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+ import os
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+ import sys
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+ import importlib.util
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+ import py_compile
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+ import struct
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+ import filecmp
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+
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+ from functools import partial
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+ from pathlib import Path
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+
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+ # Python 3.7 and higher
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+ PY37 = sys.version_info[0:2] >= (3, 7)
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+ # Python 3.6 and higher
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+ PY36 = sys.version_info[0:2] >= (3, 6)
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+ # Python 3.5 and higher
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+ PY35 = sys.version_info[0:2] >= (3, 5)
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+
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+ # Python 3.7 and above has a different structure and length
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+ # of pyc files header. Also, multiple ways how to invalidate pyc file was
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+ # introduced in Python 3.7. These cases are covered by variables here or by PY37
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+ # variable itself.
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+ if PY37:
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+ pyc_struct_format = '<4sll'
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+ pyc_header_lenght = 12
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+ pyc_header_format = (pyc_struct_format, importlib.util.MAGIC_NUMBER, 0)
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+ else:
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+ pyc_struct_format = '<4sl'
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+ pyc_header_lenght = 8
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+ pyc_header_format = (pyc_struct_format, importlib.util.MAGIC_NUMBER)
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+
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+ __all__ = ["compile_dir","compile_file","compile_path"]
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+
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+ def optimization_kwarg(opt):
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+ """Returns opt as a dictionary {optimization: opt} for use as **kwarg
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+ for Python >= 3.5 and empty dictionary for Python 3.4"""
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+ if PY35:
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+ return dict(optimization=opt)
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+ else:
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+ # `debug_override` is a way how to enable optimized byte-compiled files
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+ # (.pyo) in Python <= 3.4
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+ if opt:
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+ return dict(debug_override=False)
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+ else:
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+ return dict()
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+
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+ def _walk_dir(dir, maxlevels, quiet=0):
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+ if PY36 and quiet < 2 and isinstance(dir, os.PathLike):
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+ dir = os.fspath(dir)
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+ else:
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+ dir = str(dir)
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+ if not quiet:
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+ print('Listing {!r}...'.format(dir))
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+ try:
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+ names = os.listdir(dir)
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+ except OSError:
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+ if quiet < 2:
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+ print("Can't list {!r}".format(dir))
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+ names = []
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+ names.sort()
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+ for name in names:
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+ if name == '__pycache__':
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+ continue
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+ fullname = os.path.join(dir, name)
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+ if not os.path.isdir(fullname):
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+ yield fullname
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+ elif (maxlevels > 0 and name != os.curdir and name != os.pardir and
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+ os.path.isdir(fullname) and not os.path.islink(fullname)):
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+ yield from _walk_dir(fullname, maxlevels=maxlevels - 1,
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+ quiet=quiet)
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+
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+ def compile_dir(dir, maxlevels=None, ddir=None, force=False,
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+ rx=None, quiet=0, legacy=False, optimize=-1, workers=1,
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+ invalidation_mode=None, stripdir=None,
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+ prependdir=None, limit_sl_dest=None, hardlink_dupes=False):
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+ """Byte-compile all modules in the given directory tree.
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+
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+ Arguments (only dir is required):
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+
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+ dir: the directory to byte-compile
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+ maxlevels: maximum recursion level (default `sys.getrecursionlimit()`)
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+ ddir: the directory that will be prepended to the path to the
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+ file as it is compiled into each byte-code file.
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+ force: if True, force compilation, even if timestamps are up-to-date
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+ quiet: full output with False or 0, errors only with 1,
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+ no output with 2
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+ legacy: if True, produce legacy pyc paths instead of PEP 3147 paths
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+ optimize: int or list of optimization levels or -1 for level of
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+ the interpreter. Multiple levels leads to multiple compiled
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+ files each with one optimization level.
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+ workers: maximum number of parallel workers
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+ invalidation_mode: how the up-to-dateness of the pyc will be checked
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+ stripdir: part of path to left-strip from source file path
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+ prependdir: path to prepend to beggining of original file path, applied
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+ after stripdir
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+ limit_sl_dest: ignore symlinks if they are pointing outside of
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+ the defined path
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+ hardlink_dupes: hardlink duplicated pyc files
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+ """
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+ ProcessPoolExecutor = None
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+ if workers is not None:
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+ if workers < 0:
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+ raise ValueError('workers must be greater or equal to 0')
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+ elif workers != 1:
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+ try:
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+ # Only import when needed, as low resource platforms may
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+ # fail to import it
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+ from concurrent.futures import ProcessPoolExecutor
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+ except ImportError:
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+ workers = 1
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+ if maxlevels is None:
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+ maxlevels = sys.getrecursionlimit()
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+ files = _walk_dir(dir, quiet=quiet, maxlevels=maxlevels)
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+ success = True
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+ if workers is not None and workers != 1 and ProcessPoolExecutor is not None:
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+ workers = workers or None
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+ with ProcessPoolExecutor(max_workers=workers) as executor:
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+ results = executor.map(partial(compile_file,
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+ ddir=ddir, force=force,
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+ rx=rx, quiet=quiet,
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+ legacy=legacy,
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+ optimize=optimize,
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+ invalidation_mode=invalidation_mode,
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+ stripdir=stripdir,
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+ prependdir=prependdir,
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+ limit_sl_dest=limit_sl_dest),
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+ files)
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+ success = min(results, default=True)
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+ else:
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+ for file in files:
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+ if not compile_file(file, ddir, force, rx, quiet,
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+ legacy, optimize, invalidation_mode,
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+ stripdir=stripdir, prependdir=prependdir,
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+ limit_sl_dest=limit_sl_dest,
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+ hardlink_dupes=hardlink_dupes):
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+ success = False
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+ return success
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+
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+ def compile_file(fullname, ddir=None, force=False, rx=None, quiet=0,
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+ legacy=False, optimize=-1,
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+ invalidation_mode=None, stripdir=None, prependdir=None,
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+ limit_sl_dest=None, hardlink_dupes=False):
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+ """Byte-compile one file.
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+
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+ Arguments (only fullname is required):
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+
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+ fullname: the file to byte-compile
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+ ddir: if given, the directory name compiled in to the
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+ byte-code file.
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+ force: if True, force compilation, even if timestamps are up-to-date
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+ quiet: full output with False or 0, errors only with 1,
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+ no output with 2
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+ legacy: if True, produce legacy pyc paths instead of PEP 3147 paths
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+ optimize: int or list of optimization levels or -1 for level of
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+ the interpreter. Multiple levels leads to multiple compiled
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+ files each with one optimization level.
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+ invalidation_mode: how the up-to-dateness of the pyc will be checked
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+ stripdir: part of path to left-strip from source file path
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+ prependdir: path to prepend to beggining of original file path, applied
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+ after stripdir
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+ limit_sl_dest: ignore symlinks if they are pointing outside of
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+ the defined path.
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+ hardlink_dupes: hardlink duplicated pyc files
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+ """
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+
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+ if ddir is not None and (stripdir is not None or prependdir is not None):
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+ raise ValueError(("Destination dir (ddir) cannot be used "
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+ "in combination with stripdir or prependdir"))
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+
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+ success = True
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+ if PY36 and quiet < 2 and isinstance(fullname, os.PathLike):
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+ fullname = os.fspath(fullname)
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+ else:
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+ fullname = str(fullname)
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+ name = os.path.basename(fullname)
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+
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+ dfile = None
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+
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+ if ddir is not None:
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+ if not PY36:
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+ ddir = str(ddir)
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+ dfile = os.path.join(ddir, name)
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+
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+ if stripdir is not None:
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+ fullname_parts = fullname.split(os.path.sep)
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+ stripdir_parts = stripdir.split(os.path.sep)
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+ ddir_parts = list(fullname_parts)
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+
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+ for spart, opart in zip(stripdir_parts, fullname_parts):
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+ if spart == opart:
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+ ddir_parts.remove(spart)
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+
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+ dfile = os.path.join(*ddir_parts)
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+
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+ if prependdir is not None:
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+ if dfile is None:
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+ dfile = os.path.join(prependdir, fullname)
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+ else:
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+ dfile = os.path.join(prependdir, dfile)
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+
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+ if isinstance(optimize, int):
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+ optimize = [optimize]
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+
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+ if hardlink_dupes:
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+ raise ValueError(("Hardlinking of duplicated bytecode makes sense "
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+ "only for more than one optimization level."))
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+
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+ if rx is not None:
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+ mo = rx.search(fullname)
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+ if mo:
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+ return success
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+
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+ if limit_sl_dest is not None and os.path.islink(fullname):
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+ if Path(limit_sl_dest).resolve() not in Path(fullname).resolve().parents:
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+ return success
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+
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+ opt_cfiles = {}
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+
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+ if os.path.isfile(fullname):
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+ for opt_level in optimize:
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+ if legacy:
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+ opt_cfiles[opt_level] = fullname + 'c'
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+ else:
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+ if opt_level >= 0:
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+ opt = opt_level if opt_level >= 1 else ''
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+ opt_kwarg = optimization_kwarg(opt)
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+ cfile = (importlib.util.cache_from_source(
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+ fullname, **opt_kwarg))
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+ opt_cfiles[opt_level] = cfile
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+ else:
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+ cfile = importlib.util.cache_from_source(fullname)
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+ opt_cfiles[opt_level] = cfile
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+
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+ head, tail = name[:-3], name[-3:]
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+ if tail == '.py':
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+ if not force:
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+ try:
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+ mtime = int(os.stat(fullname).st_mtime)
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+ expect = struct.pack(*(pyc_header_format + (mtime,)))
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+ for cfile in opt_cfiles.values():
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+ with open(cfile, 'rb') as chandle:
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+ actual = chandle.read(pyc_header_lenght)
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+ if expect != actual:
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+ break
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+ else:
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+ return success
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+ except OSError:
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+ pass
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+ if not quiet:
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+ print('Compiling {!r}...'.format(fullname))
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+ try:
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+ for index, opt_level in enumerate(sorted(optimize)):
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+ cfile = opt_cfiles[opt_level]
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+ if PY37:
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+ ok = py_compile.compile(fullname, cfile, dfile, True,
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+ optimize=opt_level,
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+ invalidation_mode=invalidation_mode)
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+ else:
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+ ok = py_compile.compile(fullname, cfile, dfile, True,
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+ optimize=opt_level)
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+
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+ if index > 0 and hardlink_dupes:
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+ previous_cfile = opt_cfiles[optimize[index - 1]]
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+ if previous_cfile == cfile and optimize[0] not in (1, 2):
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+ # Python 3.4 has only one .pyo file for -O and -OO so
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+ # we hardlink it only if there is a .pyc file
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+ # with the same content
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+ previous_cfile = opt_cfiles[optimize[0]]
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+ if previous_cfile != cfile and filecmp.cmp(cfile, previous_cfile, shallow=False):
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+ os.unlink(cfile)
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+ os.link(previous_cfile, cfile)
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+
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+ except py_compile.PyCompileError as err:
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+ success = False
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+ if quiet >= 2:
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+ return success
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+ elif quiet:
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+ print('*** Error compiling {!r}...'.format(fullname))
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+ else:
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+ print('*** ', end='')
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+ # escape non-printable characters in msg
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+ msg = err.msg.encode(sys.stdout.encoding,
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+ errors='backslashreplace')
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+ msg = msg.decode(sys.stdout.encoding)
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+ print(msg)
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+ except (SyntaxError, UnicodeError, OSError) as e:
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+ success = False
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+ if quiet >= 2:
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+ return success
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+ elif quiet:
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+ print('*** Error compiling {!r}...'.format(fullname))
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+ else:
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+ print('*** ', end='')
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+ print(e.__class__.__name__ + ':', e)
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+ else:
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+ if ok == 0:
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+ success = False
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+ return success
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+
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+ def compile_path(skip_curdir=1, maxlevels=0, force=False, quiet=0,
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+ legacy=False, optimize=-1,
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+ invalidation_mode=None):
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+ """Byte-compile all module on sys.path.
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+
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+ Arguments (all optional):
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+
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+ skip_curdir: if true, skip current directory (default True)
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+ maxlevels: max recursion level (default 0)
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+ force: as for compile_dir() (default False)
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+ quiet: as for compile_dir() (default 0)
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+ legacy: as for compile_dir() (default False)
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+ optimize: as for compile_dir() (default -1)
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+ invalidation_mode: as for compiler_dir()
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+ """
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+ success = True
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+ for dir in sys.path:
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+ if (not dir or dir == os.curdir) and skip_curdir:
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+ if quiet < 2:
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+ print('Skipping current directory')
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+ else:
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+ success = success and compile_dir(
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+ dir,
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+ maxlevels,
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+ None,
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+ force,
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+ quiet=quiet,
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+ legacy=legacy,
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+ optimize=optimize,
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+ invalidation_mode=invalidation_mode,
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+ )
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+ return success
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+
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+
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+ def main():
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+ """Script main program."""
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+ import argparse
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+
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+ parser = argparse.ArgumentParser(
|
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+ description='Utilities to support installing Python libraries.')
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+ parser.add_argument('-l', action='store_const', const=0,
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+ default=None, dest='maxlevels',
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+ help="don't recurse into subdirectories")
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+ parser.add_argument('-r', type=int, dest='recursion',
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+ help=('control the maximum recursion level. '
|
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+ 'if `-l` and `-r` options are specified, '
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+ 'then `-r` takes precedence.'))
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+ parser.add_argument('-f', action='store_true', dest='force',
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+ help='force rebuild even if timestamps are up to date')
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+ parser.add_argument('-q', action='count', dest='quiet', default=0,
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+ help='output only error messages; -qq will suppress '
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+ 'the error messages as well.')
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+ parser.add_argument('-b', action='store_true', dest='legacy',
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+ help='use legacy (pre-PEP3147) compiled file locations')
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+ parser.add_argument('-d', metavar='DESTDIR', dest='ddir', default=None,
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+ help=('directory to prepend to file paths for use in '
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+ 'compile-time tracebacks and in runtime '
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+ 'tracebacks in cases where the source file is '
|
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+ 'unavailable'))
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+ parser.add_argument('-s', metavar='STRIPDIR', dest='stripdir',
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+ default=None,
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+ help=('part of path to left-strip from path '
|
| |
+ 'to source file - for example buildroot. '
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+ '`-d` and `-s` options cannot be '
|
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+ 'specified together.'))
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+ parser.add_argument('-p', metavar='PREPENDDIR', dest='prependdir',
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+ 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 '
|
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+ 'specified together.'))
|
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+ parser.add_argument('-x', metavar='REGEXP', dest='rx', default=None,
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+ help=('skip files matching the regular expression; '
|
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+ 'the regexp is searched for in the full path '
|
| |
+ 'of each file considered for compilation'))
|
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+ parser.add_argument('-i', metavar='FILE', dest='flist',
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+ help=('add all the files and directories listed in '
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+ 'FILE to the list considered for compilation; '
|
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+ 'if "-", names are read from stdin'))
|
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+ parser.add_argument('compile_dest', metavar='FILE|DIR', nargs='*',
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+ help=('zero or more file and directory names '
|
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+ 'to compile; if no arguments given, defaults '
|
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+ 'to the equivalent of -l sys.path'))
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+ parser.add_argument('-j', '--workers', default=1,
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+ type=int, help='Run compileall concurrently')
|
| |
+ parser.add_argument('-o', action='append', type=int, dest='opt_levels',
|
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+ help=('Optimization levels to run compilation with. '
|
| |
+ 'Default is -1 which uses optimization level of '
|
| |
+ 'Python interpreter itself (specified by -O).'))
|
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+ 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')
|
| |
+
|
| |
+ if PY37:
|
| |
+ invalidation_modes = [mode.name.lower().replace('_', '-')
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| |
+ 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.'))
|
| |
+
|
| |
+ args = parser.parse_args()
|
| |
+ compile_dests = args.compile_dest
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| |
+
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| |
+ if args.rx:
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+ 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)) 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
|
| |
+
|
| |
+ if PY37 and 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)
|
| |
churchyard
commented 4 years ago
No macros here use it, but since we updated python38, python39 to use it,
we need the module if we don't want to diverge the branches of python3Y needlessly.