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"""Module/script to byte-compile all .py files to .pyc (or .pyo) 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 py_compile
import struct
import imp
__all__ = ["compile_dir","compile_file","compile_path"]
def compile_dir(dir, maxlevels=10, ddir=None,
force=0, rx=None, quiet=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: the directory that will be prepended to the path to the
file as it is compiled into each byte-code file.
force: if 1, force compilation, even if timestamps are up-to-date
quiet: if 1, be quiet during compilation
"""
if not quiet:
print 'Listing', dir, '...'
try:
names = os.listdir(dir)
except os.error:
print "Can't list", dir
names = []
names.sort()
success = 1
for name in names:
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):
if not compile_file(fullname, ddir, force, rx, quiet):
success = 0
elif maxlevels > 0 and \
name != os.curdir and name != os.pardir and \
os.path.isdir(fullname) and \
not os.path.islink(fullname):
if not compile_dir(fullname, maxlevels - 1, dfile, force, rx,
quiet):
success = 0
return success
def compile_file(fullname, ddir=None, force=0, rx=None, quiet=0):
"""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 1, force compilation, even if timestamps are up-to-date
quiet: if 1, be quiet during compilation
"""
success = 1
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):
head, tail = name[:-3], name[-3:]
if tail == '.py':
if not force:
try:
mtime = int(os.stat(fullname).st_mtime)
expect = struct.pack('<4sl', imp.get_magic(), mtime)
cfile = fullname + (__debug__ and 'c' or 'o')
with open(cfile, 'rb') as chandle:
actual = chandle.read(8)
if expect == actual:
return success
except IOError:
pass
if not quiet:
print 'Compiling', fullname, '...'
try:
ok = py_compile.compile(fullname, None, dfile, True)
except py_compile.PyCompileError,err:
if quiet:
print 'Compiling', fullname, '...'
print err.msg
success = 0
except IOError, e:
print "Sorry", e
success = 0
else:
if ok == 0:
success = 0
return success
def compile_path(skip_curdir=1, maxlevels=0, force=0, quiet=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)
quiet: as for compile_dir() (default 0)
"""
success = 1
for dir in sys.path:
if (not dir or dir == os.curdir) and skip_curdir:
print 'Skipping current directory'
else:
success = success and compile_dir(dir, maxlevels, None,
force, quiet=quiet)
return success
def expand_args(args, flist):
"""read names in flist and append to args"""
expanded = args[:]
if flist:
try:
if flist == '-':
fd = sys.stdin
else:
fd = open(flist)
while 1:
line = fd.readline()
if not line:
break
expanded.append(line[:-1])
except IOError:
print "Error reading file list %s" % flist
raise
return expanded
def main():
"""Script main program."""
import getopt
try:
opts, args = getopt.getopt(sys.argv[1:], 'lfqd:x:i:')
except getopt.error, msg:
print msg
print "usage: python compileall.py [-l] [-f] [-q] [-d destdir] " \
"[-x regexp] [-i list] [directory|file ...]"
print
print "arguments: zero or more file and directory names to compile; " \
"if no arguments given, "
print " defaults to the equivalent of -l sys.path"
print
print "options:"
print "-l: don't recurse into subdirectories"
print "-f: force rebuild even if timestamps are up-to-date"
print "-q: output only error messages"
print "-d destdir: directory to prepend to file paths for use in " \
"compile-time tracebacks and in"
print " runtime tracebacks in cases where the source " \
"file is unavailable"
print "-x regexp: skip files matching the regular expression regexp; " \
"the regexp is searched for"
print " in the full path of each file considered for " \
"compilation"
print "-i file: add all the files and directories listed in file to " \
"the list considered for"
print ' compilation; if "-", names are read from stdin'
sys.exit(2)
maxlevels = 10
ddir = None
force = 0
quiet = 0
rx = None
flist = None
for o, a in opts:
if o == '-l': maxlevels = 0
if o == '-d': ddir = a
if o == '-f': force = 1
if o == '-q': quiet = 1
if o == '-x':
import re
rx = re.compile(a)
if o == '-i': flist = a
if ddir:
if len(args) != 1 and not os.path.isdir(args[0]):
print "-d destdir require exactly one directory argument"
sys.exit(2)
success = 1
try:
if args or flist:
try:
if flist:
args = expand_args(args, flist)
except IOError:
success = 0
if success:
for arg in args:
if os.path.isdir(arg):
if not compile_dir(arg, maxlevels, ddir,
force, rx, quiet):
success = 0
else:
if not compile_file(arg, ddir, force, rx, quiet):
success = 0
else:
success = compile_path()
except KeyboardInterrupt:
print "\n[interrupted]"
success = 0
return success
if __name__ == '__main__':
exit_status = int(not main())
sys.exit(exit_status)