2000-04-03 22:40:52 -03:00
|
|
|
"""distutils.cmd
|
|
|
|
|
|
|
|
Provides the Command class, the base class for the command classes
|
|
|
|
in the distutils.command package."""
|
|
|
|
|
|
|
|
# created 2000/04/03, Greg Ward
|
|
|
|
# (extricated from core.py; actually dates back to the beginning)
|
|
|
|
|
|
|
|
__revision__ = "$Id$"
|
|
|
|
|
|
|
|
import sys, string
|
|
|
|
from types import *
|
|
|
|
from distutils.errors import *
|
|
|
|
from distutils import util
|
|
|
|
|
|
|
|
|
|
|
|
class Command:
|
|
|
|
"""Abstract base class for defining command classes, the "worker bees"
|
|
|
|
of the Distutils. A useful analogy for command classes is to
|
|
|
|
think of them as subroutines with local variables called
|
|
|
|
"options". The options are "declared" in 'initialize_options()'
|
|
|
|
and "defined" (given their final values, aka "finalized") in
|
|
|
|
'finalize_options()', both of which must be defined by every
|
|
|
|
command class. The distinction between the two is necessary
|
|
|
|
because option values might come from the outside world (command
|
|
|
|
line, option file, ...), and any options dependent on other
|
|
|
|
options must be computed *after* these outside influences have
|
|
|
|
been processed -- hence 'finalize_options()'. The "body" of the
|
|
|
|
subroutine, where it does all its work based on the values of its
|
|
|
|
options, is the 'run()' method, which must also be implemented by
|
|
|
|
every command class."""
|
|
|
|
|
|
|
|
# -- Creation/initialization methods -------------------------------
|
|
|
|
|
|
|
|
def __init__ (self, dist):
|
|
|
|
"""Create and initialize a new Command object. Most importantly,
|
|
|
|
invokes the 'initialize_options()' method, which is the
|
|
|
|
real initializer and depends on the actual command being
|
|
|
|
instantiated."""
|
|
|
|
|
|
|
|
# late import because of mutual dependence between these classes
|
|
|
|
from distutils.dist import Distribution
|
|
|
|
|
|
|
|
if not isinstance (dist, Distribution):
|
|
|
|
raise TypeError, "dist must be a Distribution instance"
|
|
|
|
if self.__class__ is Command:
|
|
|
|
raise RuntimeError, "Command is an abstract class"
|
|
|
|
|
|
|
|
self.distribution = dist
|
|
|
|
self.initialize_options ()
|
|
|
|
|
|
|
|
# Per-command versions of the global flags, so that the user can
|
|
|
|
# customize Distutils' behaviour command-by-command and let some
|
|
|
|
# commands fallback on the Distribution's behaviour. None means
|
|
|
|
# "not defined, check self.distribution's copy", while 0 or 1 mean
|
|
|
|
# false and true (duh). Note that this means figuring out the real
|
|
|
|
# value of each flag is a touch complicatd -- hence "self.verbose"
|
|
|
|
# (etc.) will be handled by __getattr__, below.
|
|
|
|
self._verbose = None
|
|
|
|
self._dry_run = None
|
|
|
|
self._force = None
|
|
|
|
|
|
|
|
# The 'help' flag is just used for command-line parsing, so
|
|
|
|
# none of that complicated bureaucracy is needed.
|
|
|
|
self.help = 0
|
|
|
|
|
|
|
|
# 'ready' records whether or not 'finalize_options()' has been
|
|
|
|
# called. 'finalize_options()' itself should not pay attention to
|
|
|
|
# this flag: it is the business of 'ensure_ready()', which always
|
|
|
|
# calls 'finalize_options()', to respect/update it.
|
|
|
|
self.ready = 0
|
|
|
|
|
|
|
|
# __init__ ()
|
|
|
|
|
|
|
|
|
|
|
|
def __getattr__ (self, attr):
|
|
|
|
if attr in ('verbose', 'dry_run', 'force'):
|
|
|
|
myval = getattr (self, "_" + attr)
|
|
|
|
if myval is None:
|
|
|
|
return getattr (self.distribution, attr)
|
|
|
|
else:
|
|
|
|
return myval
|
|
|
|
else:
|
|
|
|
raise AttributeError, attr
|
|
|
|
|
|
|
|
|
|
|
|
def ensure_ready (self):
|
|
|
|
if not self.ready:
|
|
|
|
self.finalize_options ()
|
|
|
|
self.ready = 1
|
|
|
|
|
|
|
|
|
|
|
|
# Subclasses must define:
|
|
|
|
# initialize_options()
|
|
|
|
# provide default values for all options; may be overridden
|
|
|
|
# by Distutils client, by command-line options, or by options
|
|
|
|
# from option file
|
|
|
|
# finalize_options()
|
|
|
|
# decide on the final values for all options; this is called
|
|
|
|
# after all possible intervention from the outside world
|
|
|
|
# (command-line, option file, etc.) has been processed
|
|
|
|
# run()
|
|
|
|
# run the command: do whatever it is we're here to do,
|
|
|
|
# controlled by the command's various option values
|
|
|
|
|
|
|
|
def initialize_options (self):
|
|
|
|
"""Set default values for all the options that this command
|
|
|
|
supports. Note that these defaults may be overridden
|
|
|
|
by the command-line supplied by the user; thus, this is
|
|
|
|
not the place to code dependencies between options; generally,
|
|
|
|
'initialize_options()' implementations are just a bunch
|
|
|
|
of "self.foo = None" assignments.
|
|
|
|
|
|
|
|
This method must be implemented by all command classes."""
|
|
|
|
|
|
|
|
raise RuntimeError, \
|
|
|
|
"abstract method -- subclass %s must override" % self.__class__
|
|
|
|
|
|
|
|
def finalize_options (self):
|
|
|
|
"""Set final values for all the options that this command
|
|
|
|
supports. This is always called as late as possible, ie.
|
|
|
|
after any option assignments from the command-line or from
|
|
|
|
other commands have been done. Thus, this is the place to to
|
|
|
|
code option dependencies: if 'foo' depends on 'bar', then it
|
|
|
|
is safe to set 'foo' from 'bar' as long as 'foo' still has
|
|
|
|
the same value it was assigned in 'initialize_options()'.
|
|
|
|
|
|
|
|
This method must be implemented by all command classes."""
|
|
|
|
|
|
|
|
raise RuntimeError, \
|
|
|
|
"abstract method -- subclass %s must override" % self.__class__
|
|
|
|
|
|
|
|
def run (self):
|
|
|
|
"""A command's raison d'etre: carry out the action it exists
|
|
|
|
to perform, controlled by the options initialized in
|
|
|
|
'initialize_options()', customized by the user and other
|
|
|
|
commands, and finalized in 'finalize_options()'. All
|
|
|
|
terminal output and filesystem interaction should be done by
|
|
|
|
'run()'.
|
|
|
|
|
|
|
|
This method must be implemented by all command classes."""
|
|
|
|
|
|
|
|
raise RuntimeError, \
|
|
|
|
"abstract method -- subclass %s must override" % self.__class__
|
|
|
|
|
|
|
|
def announce (self, msg, level=1):
|
|
|
|
"""If the Distribution instance to which this command belongs
|
|
|
|
has a verbosity level of greater than or equal to 'level'
|
|
|
|
print 'msg' to stdout."""
|
|
|
|
|
|
|
|
if self.verbose >= level:
|
|
|
|
print msg
|
|
|
|
|
|
|
|
|
|
|
|
# -- Option query/set methods --------------------------------------
|
|
|
|
|
|
|
|
def get_option (self, option):
|
|
|
|
"""Return the value of a single option for this command. Raise
|
|
|
|
DistutilsOptionError if 'option' is not known."""
|
|
|
|
try:
|
|
|
|
return getattr (self, option)
|
|
|
|
except AttributeError:
|
|
|
|
raise DistutilsOptionError, \
|
|
|
|
"command %s: no such option %s" % \
|
|
|
|
(self.get_command_name(), option)
|
|
|
|
|
|
|
|
|
|
|
|
def get_options (self, *options):
|
|
|
|
"""Return (as a tuple) the values of several options for this
|
|
|
|
command. Raise DistutilsOptionError if any of the options in
|
|
|
|
'options' are not known."""
|
|
|
|
|
|
|
|
values = []
|
|
|
|
try:
|
|
|
|
for opt in options:
|
|
|
|
values.append (getattr (self, opt))
|
|
|
|
except AttributeError, name:
|
|
|
|
raise DistutilsOptionError, \
|
|
|
|
"command %s: no such option %s" % \
|
|
|
|
(self.get_command_name(), name)
|
|
|
|
|
|
|
|
return tuple (values)
|
|
|
|
|
|
|
|
|
|
|
|
def set_option (self, option, value):
|
|
|
|
"""Set the value of a single option for this command. Raise
|
|
|
|
DistutilsOptionError if 'option' is not known."""
|
|
|
|
|
|
|
|
if not hasattr (self, option):
|
|
|
|
raise DistutilsOptionError, \
|
|
|
|
"command '%s': no such option '%s'" % \
|
|
|
|
(self.get_command_name(), option)
|
|
|
|
if value is not None:
|
|
|
|
setattr (self, option, value)
|
|
|
|
|
|
|
|
def set_options (self, **optval):
|
|
|
|
"""Set the values of several options for this command. Raise
|
|
|
|
DistutilsOptionError if any of the options specified as
|
|
|
|
keyword arguments are not known."""
|
|
|
|
|
|
|
|
for k in optval.keys():
|
|
|
|
if optval[k] is not None:
|
|
|
|
self.set_option (k, optval[k])
|
|
|
|
|
|
|
|
|
|
|
|
# -- Convenience methods for commands ------------------------------
|
|
|
|
|
|
|
|
def get_command_name (self):
|
|
|
|
if hasattr (self, 'command_name'):
|
|
|
|
return self.command_name
|
|
|
|
else:
|
|
|
|
return self.__class__.__name__
|
|
|
|
|
|
|
|
|
|
|
|
def set_undefined_options (self, src_cmd, *option_pairs):
|
|
|
|
"""Set the values of any "undefined" options from corresponding
|
|
|
|
option values in some other command object. "Undefined" here
|
|
|
|
means "is None", which is the convention used to indicate
|
|
|
|
that an option has not been changed between
|
|
|
|
'set_initial_values()' and 'set_final_values()'. Usually
|
|
|
|
called from 'set_final_values()' for options that depend on
|
|
|
|
some other command rather than another option of the same
|
|
|
|
command. 'src_cmd' is the other command from which option
|
|
|
|
values will be taken (a command object will be created for it
|
|
|
|
if necessary); the remaining arguments are
|
|
|
|
'(src_option,dst_option)' tuples which mean "take the value
|
|
|
|
of 'src_option' in the 'src_cmd' command object, and copy it
|
|
|
|
to 'dst_option' in the current command object"."""
|
|
|
|
|
|
|
|
# Option_pairs: list of (src_option, dst_option) tuples
|
|
|
|
|
|
|
|
src_cmd_obj = self.distribution.find_command_obj (src_cmd)
|
|
|
|
src_cmd_obj.ensure_ready ()
|
|
|
|
try:
|
|
|
|
for (src_option, dst_option) in option_pairs:
|
|
|
|
if getattr (self, dst_option) is None:
|
|
|
|
self.set_option (dst_option,
|
|
|
|
src_cmd_obj.get_option (src_option))
|
|
|
|
except AttributeError, name:
|
|
|
|
# duh, which command?
|
|
|
|
raise DistutilsOptionError, "unknown option %s" % name
|
|
|
|
|
|
|
|
|
|
|
|
def find_peer (self, command, create=1):
|
|
|
|
"""Wrapper around Distribution's 'find_command_obj()' method:
|
|
|
|
find (create if necessary and 'create' is true) the command
|
|
|
|
object for 'command'.."""
|
|
|
|
|
|
|
|
cmd_obj = self.distribution.find_command_obj (command, create)
|
|
|
|
cmd_obj.ensure_ready ()
|
|
|
|
return cmd_obj
|
|
|
|
|
|
|
|
|
|
|
|
def get_peer_option (self, command, option):
|
|
|
|
"""Find or create the command object for 'command', and return
|
|
|
|
its 'option' option."""
|
|
|
|
|
|
|
|
cmd_obj = self.find_peer (command)
|
|
|
|
return cmd_obj.get_option (option)
|
|
|
|
|
|
|
|
|
|
|
|
def run_peer (self, command):
|
|
|
|
"""Run some other command: uses the 'run_command()' method of
|
|
|
|
Distribution, which creates the command object if necessary
|
|
|
|
and then invokes its 'run()' method."""
|
|
|
|
|
|
|
|
self.distribution.run_command (command)
|
|
|
|
|
|
|
|
|
|
|
|
# -- External world manipulation -----------------------------------
|
|
|
|
|
|
|
|
def warn (self, msg):
|
|
|
|
sys.stderr.write ("warning: %s: %s\n" %
|
|
|
|
(self.get_command_name(), msg))
|
|
|
|
|
|
|
|
|
|
|
|
def execute (self, func, args, msg=None, level=1):
|
|
|
|
"""Perform some action that affects the outside world (eg.
|
|
|
|
by writing to the filesystem). Such actions are special because
|
|
|
|
they should be disabled by the "dry run" flag, and should
|
|
|
|
announce themselves if the current verbosity level is high
|
|
|
|
enough. This method takes care of all that bureaucracy for you;
|
|
|
|
all you have to do is supply the funtion to call and an argument
|
|
|
|
tuple for it (to embody the "external action" being performed),
|
|
|
|
a message to print if the verbosity level is high enough, and an
|
|
|
|
optional verbosity threshold."""
|
|
|
|
|
|
|
|
# Generate a message if we weren't passed one
|
|
|
|
if msg is None:
|
|
|
|
msg = "%s %s" % (func.__name__, `args`)
|
|
|
|
if msg[-2:] == ',)': # correct for singleton tuple
|
|
|
|
msg = msg[0:-2] + ')'
|
|
|
|
|
|
|
|
# Print it if verbosity level is high enough
|
|
|
|
self.announce (msg, level)
|
|
|
|
|
|
|
|
# And do it, as long as we're not in dry-run mode
|
|
|
|
if not self.dry_run:
|
|
|
|
apply (func, args)
|
|
|
|
|
|
|
|
# execute()
|
|
|
|
|
|
|
|
|
|
|
|
def mkpath (self, name, mode=0777):
|
|
|
|
util.mkpath (name, mode,
|
|
|
|
self.verbose, self.dry_run)
|
|
|
|
|
|
|
|
|
|
|
|
def copy_file (self, infile, outfile,
|
|
|
|
preserve_mode=1, preserve_times=1, link=None, level=1):
|
|
|
|
"""Copy a file respecting verbose, dry-run and force flags."""
|
|
|
|
|
|
|
|
return util.copy_file (infile, outfile,
|
|
|
|
preserve_mode, preserve_times,
|
|
|
|
not self.force,
|
|
|
|
link,
|
|
|
|
self.verbose >= level,
|
|
|
|
self.dry_run)
|
|
|
|
|
|
|
|
|
|
|
|
def copy_tree (self, infile, outfile,
|
|
|
|
preserve_mode=1, preserve_times=1, preserve_symlinks=0,
|
|
|
|
level=1):
|
|
|
|
"""Copy an entire directory tree respecting verbose, dry-run,
|
|
|
|
and force flags."""
|
|
|
|
|
|
|
|
return util.copy_tree (infile, outfile,
|
|
|
|
preserve_mode,preserve_times,preserve_symlinks,
|
|
|
|
not self.force,
|
|
|
|
self.verbose >= level,
|
|
|
|
self.dry_run)
|
|
|
|
|
|
|
|
|
|
|
|
def move_file (self, src, dst, level=1):
|
|
|
|
"""Move a file respecting verbose and dry-run flags."""
|
|
|
|
return util.move_file (src, dst,
|
|
|
|
self.verbose >= level,
|
|
|
|
self.dry_run)
|
|
|
|
|
|
|
|
|
|
|
|
def spawn (self, cmd, search_path=1, level=1):
|
|
|
|
from distutils.spawn import spawn
|
|
|
|
spawn (cmd, search_path,
|
|
|
|
self.verbose >= level,
|
|
|
|
self.dry_run)
|
|
|
|
|
|
|
|
|
|
|
|
def make_archive (self, base_name, format,
|
|
|
|
root_dir=None, base_dir=None):
|
|
|
|
util.make_archive (base_name, format, root_dir, base_dir,
|
|
|
|
self.verbose, self.dry_run)
|
|
|
|
|
|
|
|
|
|
|
|
def make_file (self, infiles, outfile, func, args,
|
|
|
|
exec_msg=None, skip_msg=None, level=1):
|
|
|
|
|
|
|
|
"""Special case of 'execute()' for operations that process one or
|
|
|
|
more input files and generate one output file. Works just like
|
|
|
|
'execute()', except the operation is skipped and a different
|
|
|
|
message printed if 'outfile' already exists and is newer than
|
|
|
|
all files listed in 'infiles'."""
|
|
|
|
|
|
|
|
|
|
|
|
if exec_msg is None:
|
|
|
|
exec_msg = "generating %s from %s" % \
|
|
|
|
(outfile, string.join (infiles, ', '))
|
|
|
|
if skip_msg is None:
|
|
|
|
skip_msg = "skipping %s (inputs unchanged)" % outfile
|
|
|
|
|
|
|
|
|
|
|
|
# Allow 'infiles' to be a single string
|
|
|
|
if type (infiles) is StringType:
|
|
|
|
infiles = (infiles,)
|
|
|
|
elif type (infiles) not in (ListType, TupleType):
|
|
|
|
raise TypeError, \
|
|
|
|
"'infiles' must be a string, or a list or tuple of strings"
|
|
|
|
|
|
|
|
# If 'outfile' must be regenerated (either because it doesn't
|
|
|
|
# exist, is out-of-date, or the 'force' flag is true) then
|
|
|
|
# perform the action that presumably regenerates it
|
|
|
|
if self.force or util.newer_group (infiles, outfile):
|
|
|
|
self.execute (func, args, exec_msg, level)
|
|
|
|
|
|
|
|
# Otherwise, print the "skip" message
|
|
|
|
else:
|
|
|
|
self.announce (skip_msg, level)
|
|
|
|
|
|
|
|
# make_file ()
|
|
|
|
|
|
|
|
# class Command
|
2000-04-09 00:48:37 -03:00
|
|
|
|
|
|
|
|
|
|
|
if __name__ == "__main__":
|
|
|
|
print "ok"
|