cpython/Lib/compileall.py

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"""Module/script to "compile" all .py files to .pyc (or .pyo) file.
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 stat
import sys
import py_compile
def compile_dir(dir, maxlevels=10, ddir=None, force=0):
"""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: if given, purported directory name (this is the
directory name that will show up in error messages)
force: if 1, force compilation, even if timestamps are up-to-date
"""
print 'Listing', dir, '...'
try:
names = os.listdir(dir)
except os.error:
print "Can't list", dir
names = []
names.sort()
for name in names:
fullname = os.path.join(dir, name)
if ddir:
dfile = os.path.join(ddir, name)
else:
dfile = None
if os.path.isfile(fullname):
head, tail = name[:-3], name[-3:]
if tail == '.py':
cfile = fullname + (__debug__ and 'c' or 'o')
ftime = os.stat(fullname)[stat.ST_MTIME]
try: ctime = os.stat(cfile)[stat.ST_MTIME]
except os.error: ctime = 0
if (ctime > ftime) and not force: continue
print 'Compiling', fullname, '...'
try:
py_compile.compile(fullname, None, dfile)
except KeyboardInterrupt:
raise KeyboardInterrupt
except:
if type(sys.exc_type) == type(''):
exc_type_name = sys.exc_type
else: exc_type_name = sys.exc_type.__name__
print 'Sorry:', exc_type_name + ':',
print sys.exc_value
elif maxlevels > 0 and \
name != os.curdir and name != os.pardir and \
os.path.isdir(fullname) and \
not os.path.islink(fullname):
compile_dir(fullname, maxlevels - 1, dfile, force)
def compile_path(skip_curdir=1, maxlevels=0, force=0):
"""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 0)
"""
for dir in sys.path:
if (not dir or dir == os.curdir) and skip_curdir:
print 'Skipping current directory'
else:
compile_dir(dir, maxlevels, None, force)
def main():
"""Script main program."""
import getopt
try:
opts, args = getopt.getopt(sys.argv[1:], 'lfd:')
except getopt.error, msg:
print msg
print "usage: compileall [-l] [-f] [-d destdir] [directory ...]"
print "-l: don't recurse down"
print "-f: force rebuild even if timestamps are up-to-date"
print "-d destdir: purported directory name for error messages"
print "if no directory arguments, -l sys.path is assumed"
sys.exit(2)
maxlevels = 10
ddir = None
force = 0
for o, a in opts:
if o == '-l': maxlevels = 0
if o == '-d': ddir = a
if o == '-f': force = 1
if ddir:
if len(args) != 1:
print "-d destdir require exactly one directory argument"
sys.exit(2)
try:
if args:
for dir in args:
compile_dir(dir, maxlevels, ddir, force)
else:
compile_path()
except KeyboardInterrupt:
print "\n[interrupt]"
if __name__ == '__main__':
main()