1335 lines
48 KiB
Python
1335 lines
48 KiB
Python
"""SCons.Script
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This file implements the main() function used by the scons script.
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Architecturally, this *is* the scons script, and will likely only be
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called from the external "scons" wrapper. Consequently, anything here
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should not be, or be considered, part of the build engine. If it's
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something that we expect other software to want to use, it should go in
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some other module. If it's specific to the "scons" script invocation,
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it goes here.
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"""
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unsupported_python_version = (2, 3, 0)
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deprecated_python_version = (2, 4, 0)
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# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 The SCons Foundation
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
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# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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__revision__ = "src/engine/SCons/Script/Main.py 5134 2010/08/16 23:02:40 bdeegan"
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import SCons.compat
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import os
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import sys
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import time
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import traceback
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# Strip the script directory from sys.path() so on case-insensitive
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# (Windows) systems Python doesn't think that the "scons" script is the
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# "SCons" package. Replace it with our own version directory so, if
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# if they're there, we pick up the right version of the build engine
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# modules.
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#sys.path = [os.path.join(sys.prefix,
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# 'lib',
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# 'scons-%d' % SCons.__version__)] + sys.path[1:]
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import SCons.CacheDir
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import SCons.Debug
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import SCons.Defaults
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import SCons.Environment
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import SCons.Errors
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import SCons.Job
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import SCons.Node
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import SCons.Node.FS
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import SCons.SConf
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import SCons.Script
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import SCons.Taskmaster
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import SCons.Util
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import SCons.Warnings
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import SCons.Script.Interactive
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def fetch_win32_parallel_msg():
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# A subsidiary function that exists solely to isolate this import
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# so we don't have to pull it in on all platforms, and so that an
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# in-line "import" statement in the _main() function below doesn't
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# cause warnings about local names shadowing use of the 'SCons'
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# globl in nest scopes and UnboundLocalErrors and the like in some
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# versions (2.1) of Python.
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import SCons.Platform.win32
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return SCons.Platform.win32.parallel_msg
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#
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class SConsPrintHelpException(Exception):
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pass
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display = SCons.Util.display
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progress_display = SCons.Util.DisplayEngine()
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first_command_start = None
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last_command_end = None
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class Progressor(object):
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prev = ''
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count = 0
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target_string = '$TARGET'
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def __init__(self, obj, interval=1, file=None, overwrite=False):
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if file is None:
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file = sys.stdout
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self.obj = obj
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self.file = file
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self.interval = interval
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self.overwrite = overwrite
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if callable(obj):
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self.func = obj
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elif SCons.Util.is_List(obj):
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self.func = self.spinner
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elif obj.find(self.target_string) != -1:
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self.func = self.replace_string
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else:
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self.func = self.string
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def write(self, s):
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self.file.write(s)
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self.file.flush()
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self.prev = s
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def erase_previous(self):
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if self.prev:
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length = len(self.prev)
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if self.prev[-1] in ('\n', '\r'):
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length = length - 1
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self.write(' ' * length + '\r')
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self.prev = ''
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def spinner(self, node):
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self.write(self.obj[self.count % len(self.obj)])
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def string(self, node):
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self.write(self.obj)
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def replace_string(self, node):
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self.write(self.obj.replace(self.target_string, str(node)))
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def __call__(self, node):
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self.count = self.count + 1
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if (self.count % self.interval) == 0:
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if self.overwrite:
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self.erase_previous()
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self.func(node)
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ProgressObject = SCons.Util.Null()
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def Progress(*args, **kw):
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global ProgressObject
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ProgressObject = Progressor(*args, **kw)
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# Task control.
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#
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_BuildFailures = []
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def GetBuildFailures():
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return _BuildFailures
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class BuildTask(SCons.Taskmaster.OutOfDateTask):
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"""An SCons build task."""
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progress = ProgressObject
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def display(self, message):
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display('scons: ' + message)
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def prepare(self):
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self.progress(self.targets[0])
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return SCons.Taskmaster.OutOfDateTask.prepare(self)
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def needs_execute(self):
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if SCons.Taskmaster.OutOfDateTask.needs_execute(self):
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return True
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if self.top and self.targets[0].has_builder():
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display("scons: `%s' is up to date." % str(self.node))
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return False
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def execute(self):
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if print_time:
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start_time = time.time()
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global first_command_start
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if first_command_start is None:
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first_command_start = start_time
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SCons.Taskmaster.OutOfDateTask.execute(self)
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if print_time:
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global cumulative_command_time
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global last_command_end
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finish_time = time.time()
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last_command_end = finish_time
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cumulative_command_time = cumulative_command_time+finish_time-start_time
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sys.stdout.write("Command execution time: %f seconds\n"%(finish_time-start_time))
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def do_failed(self, status=2):
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_BuildFailures.append(self.exception[1])
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global exit_status
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global this_build_status
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if self.options.ignore_errors:
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SCons.Taskmaster.OutOfDateTask.executed(self)
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elif self.options.keep_going:
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SCons.Taskmaster.OutOfDateTask.fail_continue(self)
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exit_status = status
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this_build_status = status
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else:
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SCons.Taskmaster.OutOfDateTask.fail_stop(self)
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exit_status = status
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this_build_status = status
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def executed(self):
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t = self.targets[0]
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if self.top and not t.has_builder() and not t.side_effect:
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if not t.exists():
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if t.__class__.__name__ in ('File', 'Dir', 'Entry'):
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errstr="Do not know how to make %s target `%s' (%s)." % (t.__class__.__name__, t, t.abspath)
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else: # Alias or Python or ...
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errstr="Do not know how to make %s target `%s'." % (t.__class__.__name__, t)
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sys.stderr.write("scons: *** " + errstr)
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if not self.options.keep_going:
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sys.stderr.write(" Stop.")
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sys.stderr.write("\n")
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try:
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raise SCons.Errors.BuildError(t, errstr)
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except KeyboardInterrupt:
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raise
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except:
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self.exception_set()
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self.do_failed()
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else:
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print "scons: Nothing to be done for `%s'." % t
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SCons.Taskmaster.OutOfDateTask.executed(self)
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else:
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SCons.Taskmaster.OutOfDateTask.executed(self)
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def failed(self):
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# Handle the failure of a build task. The primary purpose here
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# is to display the various types of Errors and Exceptions
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# appropriately.
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exc_info = self.exc_info()
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try:
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t, e, tb = exc_info
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except ValueError:
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t, e = exc_info
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tb = None
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if t is None:
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# The Taskmaster didn't record an exception for this Task;
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# see if the sys module has one.
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try:
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t, e, tb = sys.exc_info()[:]
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except ValueError:
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t, e = exc_info
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tb = None
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# Deprecated string exceptions will have their string stored
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# in the first entry of the tuple.
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if e is None:
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e = t
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buildError = SCons.Errors.convert_to_BuildError(e)
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if not buildError.node:
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buildError.node = self.node
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node = buildError.node
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if not SCons.Util.is_List(node):
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node = [ node ]
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nodename = ', '.join(map(str, node))
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errfmt = "scons: *** [%s] %s\n"
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sys.stderr.write(errfmt % (nodename, buildError))
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if (buildError.exc_info[2] and buildError.exc_info[1] and
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not isinstance(
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buildError.exc_info[1],
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(EnvironmentError, SCons.Errors.StopError,
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SCons.Errors.UserError))):
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type, value, trace = buildError.exc_info
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traceback.print_exception(type, value, trace)
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elif tb and print_stacktrace:
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sys.stderr.write("scons: internal stack trace:\n")
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traceback.print_tb(tb, file=sys.stderr)
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self.exception = (e, buildError, tb) # type, value, traceback
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self.do_failed(buildError.exitstatus)
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self.exc_clear()
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def postprocess(self):
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if self.top:
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t = self.targets[0]
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for tp in self.options.tree_printers:
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tp.display(t)
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if self.options.debug_includes:
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tree = t.render_include_tree()
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if tree:
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print
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print tree
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SCons.Taskmaster.OutOfDateTask.postprocess(self)
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def make_ready(self):
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"""Make a task ready for execution"""
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SCons.Taskmaster.OutOfDateTask.make_ready(self)
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if self.out_of_date and self.options.debug_explain:
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explanation = self.out_of_date[0].explain()
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if explanation:
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sys.stdout.write("scons: " + explanation)
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class CleanTask(SCons.Taskmaster.AlwaysTask):
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"""An SCons clean task."""
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def fs_delete(self, path, pathstr, remove=1):
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try:
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if os.path.lexists(path):
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if os.path.isfile(path) or os.path.islink(path):
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if remove: os.unlink(path)
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display("Removed " + pathstr)
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elif os.path.isdir(path) and not os.path.islink(path):
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# delete everything in the dir
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for e in sorted(os.listdir(path)):
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p = os.path.join(path, e)
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s = os.path.join(pathstr, e)
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if os.path.isfile(p):
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if remove: os.unlink(p)
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display("Removed " + s)
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else:
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self.fs_delete(p, s, remove)
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# then delete dir itself
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if remove: os.rmdir(path)
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display("Removed directory " + pathstr)
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else:
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errstr = "Path '%s' exists but isn't a file or directory."
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raise SCons.Errors.UserError(errstr % (pathstr))
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except SCons.Errors.UserError, e:
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print e
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except (IOError, OSError), e:
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print "scons: Could not remove '%s':" % pathstr, e.strerror
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def show(self):
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target = self.targets[0]
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if (target.has_builder() or target.side_effect) and not target.noclean:
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for t in self.targets:
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if not t.isdir():
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display("Removed " + str(t))
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if target in SCons.Environment.CleanTargets:
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files = SCons.Environment.CleanTargets[target]
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for f in files:
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self.fs_delete(f.abspath, str(f), 0)
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def remove(self):
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target = self.targets[0]
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if (target.has_builder() or target.side_effect) and not target.noclean:
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for t in self.targets:
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try:
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removed = t.remove()
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except OSError, e:
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# An OSError may indicate something like a permissions
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# issue, an IOError would indicate something like
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# the file not existing. In either case, print a
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# message and keep going to try to remove as many
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# targets aa possible.
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print "scons: Could not remove '%s':" % str(t), e.strerror
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else:
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if removed:
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display("Removed " + str(t))
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if target in SCons.Environment.CleanTargets:
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files = SCons.Environment.CleanTargets[target]
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for f in files:
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self.fs_delete(f.abspath, str(f))
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execute = remove
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# We want the Taskmaster to update the Node states (and therefore
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# handle reference counts, etc.), but we don't want to call
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# back to the Node's post-build methods, which would do things
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# we don't want, like store .sconsign information.
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executed = SCons.Taskmaster.Task.executed_without_callbacks
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# Have the taskmaster arrange to "execute" all of the targets, because
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# we'll figure out ourselves (in remove() or show() above) whether
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# anything really needs to be done.
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make_ready = SCons.Taskmaster.Task.make_ready_all
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def prepare(self):
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pass
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class QuestionTask(SCons.Taskmaster.AlwaysTask):
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"""An SCons task for the -q (question) option."""
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def prepare(self):
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pass
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def execute(self):
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if self.targets[0].get_state() != SCons.Node.up_to_date or \
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(self.top and not self.targets[0].exists()):
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global exit_status
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global this_build_status
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exit_status = 1
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this_build_status = 1
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self.tm.stop()
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def executed(self):
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pass
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class TreePrinter(object):
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def __init__(self, derived=False, prune=False, status=False):
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self.derived = derived
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self.prune = prune
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self.status = status
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def get_all_children(self, node):
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return node.all_children()
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def get_derived_children(self, node):
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children = node.all_children(None)
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return [x for x in children if x.has_builder()]
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def display(self, t):
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if self.derived:
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func = self.get_derived_children
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else:
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func = self.get_all_children
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s = self.status and 2 or 0
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SCons.Util.print_tree(t, func, prune=self.prune, showtags=s)
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def python_version_string():
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return sys.version.split()[0]
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def python_version_unsupported(version=sys.version_info):
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return version < unsupported_python_version
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def python_version_deprecated(version=sys.version_info):
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return version < deprecated_python_version
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# Global variables
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print_objects = 0
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print_memoizer = 0
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print_stacktrace = 0
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print_time = 0
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sconscript_time = 0
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cumulative_command_time = 0
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exit_status = 0 # final exit status, assume success by default
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this_build_status = 0 # "exit status" of an individual build
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num_jobs = None
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delayed_warnings = []
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|
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class FakeOptionParser(object):
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"""
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A do-nothing option parser, used for the initial OptionsParser variable.
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During normal SCons operation, the OptionsParser is created right
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away by the main() function. Certain tests scripts however, can
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introspect on different Tool modules, the initialization of which
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can try to add a new, local option to an otherwise uninitialized
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OptionsParser object. This allows that introspection to happen
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without blowing up.
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"""
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class FakeOptionValues(object):
|
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def __getattr__(self, attr):
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return None
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values = FakeOptionValues()
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def add_local_option(self, *args, **kw):
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pass
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OptionsParser = FakeOptionParser()
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def AddOption(*args, **kw):
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if 'default' not in kw:
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kw['default'] = None
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result = OptionsParser.add_local_option(*args, **kw)
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return result
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|
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def GetOption(name):
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return getattr(OptionsParser.values, name)
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|
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def SetOption(name, value):
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return OptionsParser.values.set_option(name, value)
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|
|
#
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class Stats(object):
|
|
def __init__(self):
|
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self.stats = []
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self.labels = []
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self.append = self.do_nothing
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self.print_stats = self.do_nothing
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def enable(self, outfp):
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self.outfp = outfp
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self.append = self.do_append
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self.print_stats = self.do_print
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def do_nothing(self, *args, **kw):
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pass
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|
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class CountStats(Stats):
|
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def do_append(self, label):
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self.labels.append(label)
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self.stats.append(SCons.Debug.fetchLoggedInstances())
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def do_print(self):
|
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stats_table = {}
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for s in self.stats:
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for n in [t[0] for t in s]:
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stats_table[n] = [0, 0, 0, 0]
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i = 0
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for s in self.stats:
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for n, c in s:
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stats_table[n][i] = c
|
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i = i + 1
|
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self.outfp.write("Object counts:\n")
|
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pre = [" "]
|
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post = [" %s\n"]
|
|
l = len(self.stats)
|
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fmt1 = ''.join(pre + [' %7s']*l + post)
|
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fmt2 = ''.join(pre + [' %7d']*l + post)
|
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labels = self.labels[:l]
|
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labels.append(("", "Class"))
|
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self.outfp.write(fmt1 % tuple([x[0] for x in labels]))
|
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self.outfp.write(fmt1 % tuple([x[1] for x in labels]))
|
|
for k in sorted(stats_table.keys()):
|
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r = stats_table[k][:l] + [k]
|
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self.outfp.write(fmt2 % tuple(r))
|
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|
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count_stats = CountStats()
|
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|
|
class MemStats(Stats):
|
|
def do_append(self, label):
|
|
self.labels.append(label)
|
|
self.stats.append(SCons.Debug.memory())
|
|
def do_print(self):
|
|
fmt = 'Memory %-32s %12d\n'
|
|
for label, stats in zip(self.labels, self.stats):
|
|
self.outfp.write(fmt % (label, stats))
|
|
|
|
memory_stats = MemStats()
|
|
|
|
# utility functions
|
|
|
|
def _scons_syntax_error(e):
|
|
"""Handle syntax errors. Print out a message and show where the error
|
|
occurred.
|
|
"""
|
|
etype, value, tb = sys.exc_info()
|
|
lines = traceback.format_exception_only(etype, value)
|
|
for line in lines:
|
|
sys.stderr.write(line+'\n')
|
|
sys.exit(2)
|
|
|
|
def find_deepest_user_frame(tb):
|
|
"""
|
|
Find the deepest stack frame that is not part of SCons.
|
|
|
|
Input is a "pre-processed" stack trace in the form
|
|
returned by traceback.extract_tb() or traceback.extract_stack()
|
|
"""
|
|
|
|
tb.reverse()
|
|
|
|
# find the deepest traceback frame that is not part
|
|
# of SCons:
|
|
for frame in tb:
|
|
filename = frame[0]
|
|
if filename.find(os.sep+'SCons'+os.sep) == -1:
|
|
return frame
|
|
return tb[0]
|
|
|
|
def _scons_user_error(e):
|
|
"""Handle user errors. Print out a message and a description of the
|
|
error, along with the line number and routine where it occured.
|
|
The file and line number will be the deepest stack frame that is
|
|
not part of SCons itself.
|
|
"""
|
|
global print_stacktrace
|
|
etype, value, tb = sys.exc_info()
|
|
if print_stacktrace:
|
|
traceback.print_exception(etype, value, tb)
|
|
filename, lineno, routine, dummy = find_deepest_user_frame(traceback.extract_tb(tb))
|
|
sys.stderr.write("\nscons: *** %s\n" % value)
|
|
sys.stderr.write('File "%s", line %d, in %s\n' % (filename, lineno, routine))
|
|
sys.exit(2)
|
|
|
|
def _scons_user_warning(e):
|
|
"""Handle user warnings. Print out a message and a description of
|
|
the warning, along with the line number and routine where it occured.
|
|
The file and line number will be the deepest stack frame that is
|
|
not part of SCons itself.
|
|
"""
|
|
etype, value, tb = sys.exc_info()
|
|
filename, lineno, routine, dummy = find_deepest_user_frame(traceback.extract_tb(tb))
|
|
sys.stderr.write("\nscons: warning: %s\n" % e)
|
|
sys.stderr.write('File "%s", line %d, in %s\n' % (filename, lineno, routine))
|
|
|
|
def _scons_internal_warning(e):
|
|
"""Slightly different from _scons_user_warning in that we use the
|
|
*current call stack* rather than sys.exc_info() to get our stack trace.
|
|
This is used by the warnings framework to print warnings."""
|
|
filename, lineno, routine, dummy = find_deepest_user_frame(traceback.extract_stack())
|
|
sys.stderr.write("\nscons: warning: %s\n" % e.args[0])
|
|
sys.stderr.write('File "%s", line %d, in %s\n' % (filename, lineno, routine))
|
|
|
|
def _scons_internal_error():
|
|
"""Handle all errors but user errors. Print out a message telling
|
|
the user what to do in this case and print a normal trace.
|
|
"""
|
|
print 'internal error'
|
|
traceback.print_exc()
|
|
sys.exit(2)
|
|
|
|
def _SConstruct_exists(dirname='', repositories=[], filelist=None):
|
|
"""This function checks that an SConstruct file exists in a directory.
|
|
If so, it returns the path of the file. By default, it checks the
|
|
current directory.
|
|
"""
|
|
if not filelist:
|
|
filelist = ['SConstruct', 'Sconstruct', 'sconstruct']
|
|
for file in filelist:
|
|
sfile = os.path.join(dirname, file)
|
|
if os.path.isfile(sfile):
|
|
return sfile
|
|
if not os.path.isabs(sfile):
|
|
for rep in repositories:
|
|
if os.path.isfile(os.path.join(rep, sfile)):
|
|
return sfile
|
|
return None
|
|
|
|
def _set_debug_values(options):
|
|
global print_memoizer, print_objects, print_stacktrace, print_time
|
|
|
|
debug_values = options.debug
|
|
|
|
if "count" in debug_values:
|
|
# All of the object counts are within "if __debug__:" blocks,
|
|
# which get stripped when running optimized (with python -O or
|
|
# from compiled *.pyo files). Provide a warning if __debug__ is
|
|
# stripped, so it doesn't just look like --debug=count is broken.
|
|
enable_count = False
|
|
if __debug__: enable_count = True
|
|
if enable_count:
|
|
count_stats.enable(sys.stdout)
|
|
else:
|
|
msg = "--debug=count is not supported when running SCons\n" + \
|
|
"\twith the python -O option or optimized (.pyo) modules."
|
|
SCons.Warnings.warn(SCons.Warnings.NoObjectCountWarning, msg)
|
|
if "dtree" in debug_values:
|
|
options.tree_printers.append(TreePrinter(derived=True))
|
|
options.debug_explain = ("explain" in debug_values)
|
|
if "findlibs" in debug_values:
|
|
SCons.Scanner.Prog.print_find_libs = "findlibs"
|
|
options.debug_includes = ("includes" in debug_values)
|
|
print_memoizer = ("memoizer" in debug_values)
|
|
if "memory" in debug_values:
|
|
memory_stats.enable(sys.stdout)
|
|
print_objects = ("objects" in debug_values)
|
|
if "presub" in debug_values:
|
|
SCons.Action.print_actions_presub = 1
|
|
if "stacktrace" in debug_values:
|
|
print_stacktrace = 1
|
|
if "stree" in debug_values:
|
|
options.tree_printers.append(TreePrinter(status=True))
|
|
if "time" in debug_values:
|
|
print_time = 1
|
|
if "tree" in debug_values:
|
|
options.tree_printers.append(TreePrinter())
|
|
|
|
def _create_path(plist):
|
|
path = '.'
|
|
for d in plist:
|
|
if os.path.isabs(d):
|
|
path = d
|
|
else:
|
|
path = path + '/' + d
|
|
return path
|
|
|
|
def _load_site_scons_dir(topdir, site_dir_name=None):
|
|
"""Load the site_scons dir under topdir.
|
|
Adds site_scons to sys.path, imports site_scons/site_init.py,
|
|
and adds site_scons/site_tools to default toolpath."""
|
|
if site_dir_name:
|
|
err_if_not_found = True # user specified: err if missing
|
|
else:
|
|
site_dir_name = "site_scons"
|
|
err_if_not_found = False
|
|
|
|
site_dir = os.path.join(topdir.path, site_dir_name)
|
|
if not os.path.exists(site_dir):
|
|
if err_if_not_found:
|
|
raise SCons.Errors.UserError("site dir %s not found."%site_dir)
|
|
return
|
|
|
|
site_init_filename = "site_init.py"
|
|
site_init_modname = "site_init"
|
|
site_tools_dirname = "site_tools"
|
|
sys.path = [os.path.abspath(site_dir)] + sys.path
|
|
site_init_file = os.path.join(site_dir, site_init_filename)
|
|
site_tools_dir = os.path.join(site_dir, site_tools_dirname)
|
|
if os.path.exists(site_init_file):
|
|
import imp
|
|
# TODO(2.4): turn this into try:-except:-finally:
|
|
try:
|
|
try:
|
|
fp, pathname, description = imp.find_module(site_init_modname,
|
|
[site_dir])
|
|
# Load the file into SCons.Script namespace. This is
|
|
# opaque and clever; m is the module object for the
|
|
# SCons.Script module, and the exec ... in call executes a
|
|
# file (or string containing code) in the context of the
|
|
# module's dictionary, so anything that code defines ends
|
|
# up adding to that module. This is really short, but all
|
|
# the error checking makes it longer.
|
|
try:
|
|
m = sys.modules['SCons.Script']
|
|
except Exception, e:
|
|
fmt = 'cannot import site_init.py: missing SCons.Script module %s'
|
|
raise SCons.Errors.InternalError(fmt % repr(e))
|
|
try:
|
|
# This is the magic.
|
|
exec fp in m.__dict__
|
|
except KeyboardInterrupt:
|
|
raise
|
|
except Exception, e:
|
|
fmt = '*** Error loading site_init file %s:\n'
|
|
sys.stderr.write(fmt % repr(site_init_file))
|
|
raise
|
|
except KeyboardInterrupt:
|
|
raise
|
|
except ImportError, e:
|
|
fmt = '*** cannot import site init file %s:\n'
|
|
sys.stderr.write(fmt % repr(site_init_file))
|
|
raise
|
|
finally:
|
|
if fp:
|
|
fp.close()
|
|
if os.path.exists(site_tools_dir):
|
|
SCons.Tool.DefaultToolpath.append(os.path.abspath(site_tools_dir))
|
|
|
|
def version_string(label, module):
|
|
version = module.__version__
|
|
build = module.__build__
|
|
if build:
|
|
if build[0] != '.':
|
|
build = '.' + build
|
|
version = version + build
|
|
fmt = "\t%s: v%s, %s, by %s on %s\n"
|
|
return fmt % (label,
|
|
version,
|
|
module.__date__,
|
|
module.__developer__,
|
|
module.__buildsys__)
|
|
|
|
def _main(parser):
|
|
global exit_status
|
|
global this_build_status
|
|
|
|
options = parser.values
|
|
|
|
# Here's where everything really happens.
|
|
|
|
# First order of business: set up default warnings and then
|
|
# handle the user's warning options, so that we can issue (or
|
|
# suppress) appropriate warnings about anything that might happen,
|
|
# as configured by the user.
|
|
|
|
default_warnings = [ SCons.Warnings.WarningOnByDefault,
|
|
SCons.Warnings.DeprecatedWarning,
|
|
]
|
|
|
|
for warning in default_warnings:
|
|
SCons.Warnings.enableWarningClass(warning)
|
|
SCons.Warnings._warningOut = _scons_internal_warning
|
|
SCons.Warnings.process_warn_strings(options.warn)
|
|
|
|
# Now that we have the warnings configuration set up, we can actually
|
|
# issue (or suppress) any warnings about warning-worthy things that
|
|
# occurred while the command-line options were getting parsed.
|
|
try:
|
|
dw = options.delayed_warnings
|
|
except AttributeError:
|
|
pass
|
|
else:
|
|
delayed_warnings.extend(dw)
|
|
for warning_type, message in delayed_warnings:
|
|
SCons.Warnings.warn(warning_type, message)
|
|
|
|
if options.diskcheck:
|
|
SCons.Node.FS.set_diskcheck(options.diskcheck)
|
|
|
|
# Next, we want to create the FS object that represents the outside
|
|
# world's file system, as that's central to a lot of initialization.
|
|
# To do this, however, we need to be in the directory from which we
|
|
# want to start everything, which means first handling any relevant
|
|
# options that might cause us to chdir somewhere (-C, -D, -U, -u).
|
|
if options.directory:
|
|
script_dir = os.path.abspath(_create_path(options.directory))
|
|
else:
|
|
script_dir = os.getcwd()
|
|
|
|
target_top = None
|
|
if options.climb_up:
|
|
target_top = '.' # directory to prepend to targets
|
|
while script_dir and not _SConstruct_exists(script_dir,
|
|
options.repository,
|
|
options.file):
|
|
script_dir, last_part = os.path.split(script_dir)
|
|
if last_part:
|
|
target_top = os.path.join(last_part, target_top)
|
|
else:
|
|
script_dir = ''
|
|
|
|
if script_dir and script_dir != os.getcwd():
|
|
display("scons: Entering directory `%s'" % script_dir)
|
|
try:
|
|
os.chdir(script_dir)
|
|
except OSError:
|
|
sys.stderr.write("Could not change directory to %s\n" % script_dir)
|
|
|
|
# Now that we're in the top-level SConstruct directory, go ahead
|
|
# and initialize the FS object that represents the file system,
|
|
# and make it the build engine default.
|
|
fs = SCons.Node.FS.get_default_fs()
|
|
|
|
for rep in options.repository:
|
|
fs.Repository(rep)
|
|
|
|
# Now that we have the FS object, the next order of business is to
|
|
# check for an SConstruct file (or other specified config file).
|
|
# If there isn't one, we can bail before doing any more work.
|
|
scripts = []
|
|
if options.file:
|
|
scripts.extend(options.file)
|
|
if not scripts:
|
|
sfile = _SConstruct_exists(repositories=options.repository,
|
|
filelist=options.file)
|
|
if sfile:
|
|
scripts.append(sfile)
|
|
|
|
if not scripts:
|
|
if options.help:
|
|
# There's no SConstruct, but they specified -h.
|
|
# Give them the options usage now, before we fail
|
|
# trying to read a non-existent SConstruct file.
|
|
raise SConsPrintHelpException
|
|
raise SCons.Errors.UserError("No SConstruct file found.")
|
|
|
|
if scripts[0] == "-":
|
|
d = fs.getcwd()
|
|
else:
|
|
d = fs.File(scripts[0]).dir
|
|
fs.set_SConstruct_dir(d)
|
|
|
|
_set_debug_values(options)
|
|
SCons.Node.implicit_cache = options.implicit_cache
|
|
SCons.Node.implicit_deps_changed = options.implicit_deps_changed
|
|
SCons.Node.implicit_deps_unchanged = options.implicit_deps_unchanged
|
|
|
|
if options.no_exec:
|
|
SCons.SConf.dryrun = 1
|
|
SCons.Action.execute_actions = None
|
|
if options.question:
|
|
SCons.SConf.dryrun = 1
|
|
if options.clean:
|
|
SCons.SConf.SetBuildType('clean')
|
|
if options.help:
|
|
SCons.SConf.SetBuildType('help')
|
|
SCons.SConf.SetCacheMode(options.config)
|
|
SCons.SConf.SetProgressDisplay(progress_display)
|
|
|
|
if options.no_progress or options.silent:
|
|
progress_display.set_mode(0)
|
|
|
|
if options.site_dir:
|
|
_load_site_scons_dir(d, options.site_dir)
|
|
elif not options.no_site_dir:
|
|
_load_site_scons_dir(d)
|
|
|
|
if options.include_dir:
|
|
sys.path = options.include_dir + sys.path
|
|
|
|
# That should cover (most of) the options. Next, set up the variables
|
|
# that hold command-line arguments, so the SConscript files that we
|
|
# read and execute have access to them.
|
|
targets = []
|
|
xmit_args = []
|
|
for a in parser.largs:
|
|
if a[:1] == '-':
|
|
continue
|
|
if '=' in a:
|
|
xmit_args.append(a)
|
|
else:
|
|
targets.append(a)
|
|
SCons.Script._Add_Targets(targets + parser.rargs)
|
|
SCons.Script._Add_Arguments(xmit_args)
|
|
|
|
# If stdout is not a tty, replace it with a wrapper object to call flush
|
|
# after every write.
|
|
#
|
|
# Tty devices automatically flush after every newline, so the replacement
|
|
# isn't necessary. Furthermore, if we replace sys.stdout, the readline
|
|
# module will no longer work. This affects the behavior during
|
|
# --interactive mode. --interactive should only be used when stdin and
|
|
# stdout refer to a tty.
|
|
if not hasattr(sys.stdout, 'isatty') or not sys.stdout.isatty():
|
|
sys.stdout = SCons.Util.Unbuffered(sys.stdout)
|
|
if not hasattr(sys.stderr, 'isatty') or not sys.stderr.isatty():
|
|
sys.stderr = SCons.Util.Unbuffered(sys.stderr)
|
|
|
|
memory_stats.append('before reading SConscript files:')
|
|
count_stats.append(('pre-', 'read'))
|
|
|
|
# And here's where we (finally) read the SConscript files.
|
|
|
|
progress_display("scons: Reading SConscript files ...")
|
|
|
|
start_time = time.time()
|
|
try:
|
|
for script in scripts:
|
|
SCons.Script._SConscript._SConscript(fs, script)
|
|
except SCons.Errors.StopError, e:
|
|
# We had problems reading an SConscript file, such as it
|
|
# couldn't be copied in to the VariantDir. Since we're just
|
|
# reading SConscript files and haven't started building
|
|
# things yet, stop regardless of whether they used -i or -k
|
|
# or anything else.
|
|
sys.stderr.write("scons: *** %s Stop.\n" % e)
|
|
exit_status = 2
|
|
sys.exit(exit_status)
|
|
global sconscript_time
|
|
sconscript_time = time.time() - start_time
|
|
|
|
progress_display("scons: done reading SConscript files.")
|
|
|
|
memory_stats.append('after reading SConscript files:')
|
|
count_stats.append(('post-', 'read'))
|
|
|
|
# Re-{enable,disable} warnings in case they disabled some in
|
|
# the SConscript file.
|
|
#
|
|
# We delay enabling the PythonVersionWarning class until here so that,
|
|
# if they explicity disabled it in either in the command line or in
|
|
# $SCONSFLAGS, or in the SConscript file, then the search through
|
|
# the list of deprecated warning classes will find that disabling
|
|
# first and not issue the warning.
|
|
#SCons.Warnings.enableWarningClass(SCons.Warnings.PythonVersionWarning)
|
|
SCons.Warnings.process_warn_strings(options.warn)
|
|
|
|
# Now that we've read the SConscript files, we can check for the
|
|
# warning about deprecated Python versions--delayed until here
|
|
# in case they disabled the warning in the SConscript files.
|
|
if python_version_deprecated():
|
|
msg = "Support for pre-2.4 Python (%s) is deprecated.\n" + \
|
|
" If this will cause hardship, contact dev@scons.tigris.org."
|
|
SCons.Warnings.warn(SCons.Warnings.PythonVersionWarning,
|
|
msg % python_version_string())
|
|
|
|
if not options.help:
|
|
SCons.SConf.CreateConfigHBuilder(SCons.Defaults.DefaultEnvironment())
|
|
|
|
# Now re-parse the command-line options (any to the left of a '--'
|
|
# argument, that is) with any user-defined command-line options that
|
|
# the SConscript files may have added to the parser object. This will
|
|
# emit the appropriate error message and exit if any unknown option
|
|
# was specified on the command line.
|
|
|
|
parser.preserve_unknown_options = False
|
|
parser.parse_args(parser.largs, options)
|
|
|
|
if options.help:
|
|
help_text = SCons.Script.help_text
|
|
if help_text is None:
|
|
# They specified -h, but there was no Help() inside the
|
|
# SConscript files. Give them the options usage.
|
|
raise SConsPrintHelpException
|
|
else:
|
|
print help_text
|
|
print "Use scons -H for help about command-line options."
|
|
exit_status = 0
|
|
return
|
|
|
|
# Change directory to the top-level SConstruct directory, then tell
|
|
# the Node.FS subsystem that we're all done reading the SConscript
|
|
# files and calling Repository() and VariantDir() and changing
|
|
# directories and the like, so it can go ahead and start memoizing
|
|
# the string values of file system nodes.
|
|
|
|
fs.chdir(fs.Top)
|
|
|
|
SCons.Node.FS.save_strings(1)
|
|
|
|
# Now that we've read the SConscripts we can set the options
|
|
# that are SConscript settable:
|
|
SCons.Node.implicit_cache = options.implicit_cache
|
|
SCons.Node.FS.set_duplicate(options.duplicate)
|
|
fs.set_max_drift(options.max_drift)
|
|
|
|
SCons.Job.explicit_stack_size = options.stack_size
|
|
|
|
if options.md5_chunksize:
|
|
SCons.Node.FS.File.md5_chunksize = options.md5_chunksize
|
|
|
|
platform = SCons.Platform.platform_module()
|
|
|
|
if options.interactive:
|
|
SCons.Script.Interactive.interact(fs, OptionsParser, options,
|
|
targets, target_top)
|
|
|
|
else:
|
|
|
|
# Build the targets
|
|
nodes = _build_targets(fs, options, targets, target_top)
|
|
if not nodes:
|
|
exit_status = 2
|
|
|
|
def _build_targets(fs, options, targets, target_top):
|
|
|
|
global this_build_status
|
|
this_build_status = 0
|
|
|
|
progress_display.set_mode(not (options.no_progress or options.silent))
|
|
display.set_mode(not options.silent)
|
|
SCons.Action.print_actions = not options.silent
|
|
SCons.Action.execute_actions = not options.no_exec
|
|
SCons.Node.FS.do_store_info = not options.no_exec
|
|
SCons.SConf.dryrun = options.no_exec
|
|
|
|
if options.diskcheck:
|
|
SCons.Node.FS.set_diskcheck(options.diskcheck)
|
|
|
|
SCons.CacheDir.cache_enabled = not options.cache_disable
|
|
SCons.CacheDir.cache_debug = options.cache_debug
|
|
SCons.CacheDir.cache_force = options.cache_force
|
|
SCons.CacheDir.cache_show = options.cache_show
|
|
|
|
if options.no_exec:
|
|
CleanTask.execute = CleanTask.show
|
|
else:
|
|
CleanTask.execute = CleanTask.remove
|
|
|
|
lookup_top = None
|
|
if targets or SCons.Script.BUILD_TARGETS != SCons.Script._build_plus_default:
|
|
# They specified targets on the command line or modified
|
|
# BUILD_TARGETS in the SConscript file(s), so if they used -u,
|
|
# -U or -D, we have to look up targets relative to the top,
|
|
# but we build whatever they specified.
|
|
if target_top:
|
|
lookup_top = fs.Dir(target_top)
|
|
target_top = None
|
|
|
|
targets = SCons.Script.BUILD_TARGETS
|
|
else:
|
|
# There are no targets specified on the command line,
|
|
# so if they used -u, -U or -D, we may have to restrict
|
|
# what actually gets built.
|
|
d = None
|
|
if target_top:
|
|
if options.climb_up == 1:
|
|
# -u, local directory and below
|
|
target_top = fs.Dir(target_top)
|
|
lookup_top = target_top
|
|
elif options.climb_up == 2:
|
|
# -D, all Default() targets
|
|
target_top = None
|
|
lookup_top = None
|
|
elif options.climb_up == 3:
|
|
# -U, local SConscript Default() targets
|
|
target_top = fs.Dir(target_top)
|
|
def check_dir(x, target_top=target_top):
|
|
if hasattr(x, 'cwd') and not x.cwd is None:
|
|
cwd = x.cwd.srcnode()
|
|
return cwd == target_top
|
|
else:
|
|
# x doesn't have a cwd, so it's either not a target,
|
|
# or not a file, so go ahead and keep it as a default
|
|
# target and let the engine sort it out:
|
|
return 1
|
|
d = list(filter(check_dir, SCons.Script.DEFAULT_TARGETS))
|
|
SCons.Script.DEFAULT_TARGETS[:] = d
|
|
target_top = None
|
|
lookup_top = None
|
|
|
|
targets = SCons.Script._Get_Default_Targets(d, fs)
|
|
|
|
if not targets:
|
|
sys.stderr.write("scons: *** No targets specified and no Default() targets found. Stop.\n")
|
|
return None
|
|
|
|
def Entry(x, ltop=lookup_top, ttop=target_top, fs=fs):
|
|
if isinstance(x, SCons.Node.Node):
|
|
node = x
|
|
else:
|
|
node = None
|
|
# Why would ltop be None? Unfortunately this happens.
|
|
if ltop is None: ltop = ''
|
|
# Curdir becomes important when SCons is called with -u, -C,
|
|
# or similar option that changes directory, and so the paths
|
|
# of targets given on the command line need to be adjusted.
|
|
curdir = os.path.join(os.getcwd(), str(ltop))
|
|
for lookup in SCons.Node.arg2nodes_lookups:
|
|
node = lookup(x, curdir=curdir)
|
|
if node is not None:
|
|
break
|
|
if node is None:
|
|
node = fs.Entry(x, directory=ltop, create=1)
|
|
if ttop and not node.is_under(ttop):
|
|
if isinstance(node, SCons.Node.FS.Dir) and ttop.is_under(node):
|
|
node = ttop
|
|
else:
|
|
node = None
|
|
return node
|
|
|
|
nodes = [_f for _f in map(Entry, targets) if _f]
|
|
|
|
task_class = BuildTask # default action is to build targets
|
|
opening_message = "Building targets ..."
|
|
closing_message = "done building targets."
|
|
if options.keep_going:
|
|
failure_message = "done building targets (errors occurred during build)."
|
|
else:
|
|
failure_message = "building terminated because of errors."
|
|
if options.question:
|
|
task_class = QuestionTask
|
|
try:
|
|
if options.clean:
|
|
task_class = CleanTask
|
|
opening_message = "Cleaning targets ..."
|
|
closing_message = "done cleaning targets."
|
|
if options.keep_going:
|
|
failure_message = "done cleaning targets (errors occurred during clean)."
|
|
else:
|
|
failure_message = "cleaning terminated because of errors."
|
|
except AttributeError:
|
|
pass
|
|
|
|
task_class.progress = ProgressObject
|
|
|
|
if options.random:
|
|
def order(dependencies):
|
|
"""Randomize the dependencies."""
|
|
import random
|
|
# This is cribbed from the implementation of
|
|
# random.shuffle() in Python 2.X.
|
|
d = dependencies
|
|
for i in range(len(d)-1, 0, -1):
|
|
j = int(random.random() * (i+1))
|
|
d[i], d[j] = d[j], d[i]
|
|
return d
|
|
else:
|
|
def order(dependencies):
|
|
"""Leave the order of dependencies alone."""
|
|
return dependencies
|
|
|
|
if options.taskmastertrace_file == '-':
|
|
tmtrace = sys.stdout
|
|
elif options.taskmastertrace_file:
|
|
tmtrace = open(options.taskmastertrace_file, 'wb')
|
|
else:
|
|
tmtrace = None
|
|
taskmaster = SCons.Taskmaster.Taskmaster(nodes, task_class, order, tmtrace)
|
|
|
|
# Let the BuildTask objects get at the options to respond to the
|
|
# various print_* settings, tree_printer list, etc.
|
|
BuildTask.options = options
|
|
|
|
global num_jobs
|
|
num_jobs = options.num_jobs
|
|
jobs = SCons.Job.Jobs(num_jobs, taskmaster)
|
|
if num_jobs > 1:
|
|
msg = None
|
|
if jobs.num_jobs == 1:
|
|
msg = "parallel builds are unsupported by this version of Python;\n" + \
|
|
"\tignoring -j or num_jobs option.\n"
|
|
elif sys.platform == 'win32':
|
|
msg = fetch_win32_parallel_msg()
|
|
if msg:
|
|
SCons.Warnings.warn(SCons.Warnings.NoParallelSupportWarning, msg)
|
|
|
|
memory_stats.append('before building targets:')
|
|
count_stats.append(('pre-', 'build'))
|
|
|
|
def jobs_postfunc(
|
|
jobs=jobs,
|
|
options=options,
|
|
closing_message=closing_message,
|
|
failure_message=failure_message
|
|
):
|
|
if jobs.were_interrupted():
|
|
if not options.no_progress and not options.silent:
|
|
sys.stderr.write("scons: Build interrupted.\n")
|
|
global exit_status
|
|
global this_build_status
|
|
exit_status = 2
|
|
this_build_status = 2
|
|
|
|
if this_build_status:
|
|
progress_display("scons: " + failure_message)
|
|
else:
|
|
progress_display("scons: " + closing_message)
|
|
if not options.no_exec:
|
|
if jobs.were_interrupted():
|
|
progress_display("scons: writing .sconsign file.")
|
|
SCons.SConsign.write()
|
|
|
|
progress_display("scons: " + opening_message)
|
|
jobs.run(postfunc = jobs_postfunc)
|
|
|
|
memory_stats.append('after building targets:')
|
|
count_stats.append(('post-', 'build'))
|
|
|
|
return nodes
|
|
|
|
def _exec_main(parser, values):
|
|
sconsflags = os.environ.get('SCONSFLAGS', '')
|
|
all_args = sconsflags.split() + sys.argv[1:]
|
|
|
|
options, args = parser.parse_args(all_args, values)
|
|
|
|
if isinstance(options.debug, list) and "pdb" in options.debug:
|
|
import pdb
|
|
pdb.Pdb().runcall(_main, parser)
|
|
elif options.profile_file:
|
|
# compat layer imports "cProfile" for us if it's available.
|
|
from profile import Profile
|
|
|
|
# Some versions of Python 2.4 shipped a profiler that had the
|
|
# wrong 'c_exception' entry in its dispatch table. Make sure
|
|
# we have the right one. (This may put an unnecessary entry
|
|
# in the table in earlier versions of Python, but its presence
|
|
# shouldn't hurt anything).
|
|
try:
|
|
dispatch = Profile.dispatch
|
|
except AttributeError:
|
|
pass
|
|
else:
|
|
dispatch['c_exception'] = Profile.trace_dispatch_return
|
|
|
|
prof = Profile()
|
|
try:
|
|
prof.runcall(_main, parser)
|
|
except SConsPrintHelpException, e:
|
|
prof.dump_stats(options.profile_file)
|
|
raise e
|
|
except SystemExit:
|
|
pass
|
|
prof.dump_stats(options.profile_file)
|
|
else:
|
|
_main(parser)
|
|
|
|
def main():
|
|
global OptionsParser
|
|
global exit_status
|
|
global first_command_start
|
|
|
|
# Check up front for a Python version we do not support. We
|
|
# delay the check for deprecated Python versions until later,
|
|
# after the SConscript files have been read, in case they
|
|
# disable that warning.
|
|
if python_version_unsupported():
|
|
msg = "scons: *** SCons version %s does not run under Python version %s.\n"
|
|
sys.stderr.write(msg % (SCons.__version__, python_version_string()))
|
|
sys.exit(1)
|
|
|
|
parts = ["SCons by Steven Knight et al.:\n"]
|
|
try:
|
|
import __main__
|
|
parts.append(version_string("script", __main__))
|
|
except (ImportError, AttributeError):
|
|
# On Windows there is no scons.py, so there is no
|
|
# __main__.__version__, hence there is no script version.
|
|
pass
|
|
parts.append(version_string("engine", SCons))
|
|
parts.append("Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 The SCons Foundation")
|
|
version = ''.join(parts)
|
|
|
|
import SConsOptions
|
|
parser = SConsOptions.Parser(version)
|
|
values = SConsOptions.SConsValues(parser.get_default_values())
|
|
|
|
OptionsParser = parser
|
|
|
|
try:
|
|
_exec_main(parser, values)
|
|
except SystemExit, s:
|
|
if s:
|
|
exit_status = s
|
|
except KeyboardInterrupt:
|
|
print("scons: Build interrupted.")
|
|
sys.exit(2)
|
|
except SyntaxError, e:
|
|
_scons_syntax_error(e)
|
|
except SCons.Errors.InternalError:
|
|
_scons_internal_error()
|
|
except SCons.Errors.UserError, e:
|
|
_scons_user_error(e)
|
|
except SConsPrintHelpException:
|
|
parser.print_help()
|
|
exit_status = 0
|
|
except SCons.Errors.BuildError, e:
|
|
exit_status = e.exitstatus
|
|
except:
|
|
# An exception here is likely a builtin Python exception Python
|
|
# code in an SConscript file. Show them precisely what the
|
|
# problem was and where it happened.
|
|
SCons.Script._SConscript.SConscript_exception()
|
|
sys.exit(2)
|
|
|
|
memory_stats.print_stats()
|
|
count_stats.print_stats()
|
|
|
|
if print_objects:
|
|
SCons.Debug.listLoggedInstances('*')
|
|
#SCons.Debug.dumpLoggedInstances('*')
|
|
|
|
if print_memoizer:
|
|
SCons.Memoize.Dump("Memoizer (memory cache) hits and misses:")
|
|
|
|
# Dump any development debug info that may have been enabled.
|
|
# These are purely for internal debugging during development, so
|
|
# there's no need to control them with --debug= options; they're
|
|
# controlled by changing the source code.
|
|
SCons.Debug.dump_caller_counts()
|
|
SCons.Taskmaster.dump_stats()
|
|
|
|
if print_time:
|
|
total_time = time.time() - SCons.Script.start_time
|
|
if num_jobs == 1:
|
|
ct = cumulative_command_time
|
|
else:
|
|
if last_command_end is None or first_command_start is None:
|
|
ct = 0.0
|
|
else:
|
|
ct = last_command_end - first_command_start
|
|
scons_time = total_time - sconscript_time - ct
|
|
print "Total build time: %f seconds"%total_time
|
|
print "Total SConscript file execution time: %f seconds"%sconscript_time
|
|
print "Total SCons execution time: %f seconds"%scons_time
|
|
print "Total command execution time: %f seconds"%ct
|
|
|
|
sys.exit(exit_status)
|
|
|
|
# Local Variables:
|
|
# tab-width:4
|
|
# indent-tabs-mode:nil
|
|
# End:
|
|
# vim: set expandtab tabstop=4 shiftwidth=4:
|