mirror of
https://github.com/nodejs/node.git
synced 2024-12-01 16:10:02 +01:00
464 lines
16 KiB
Python
464 lines
16 KiB
Python
"""SCons.Defaults
|
|
|
|
Builders and other things for the local site. Here's where we'll
|
|
duplicate the functionality of autoconf until we move it into the
|
|
installation procedure or use something like qmconf.
|
|
|
|
The code that reads the registry to find MSVC components was borrowed
|
|
from distutils.msvccompiler.
|
|
|
|
"""
|
|
|
|
#
|
|
# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 The SCons Foundation
|
|
#
|
|
# Permission is hereby granted, free of charge, to any person obtaining
|
|
# a copy of this software and associated documentation files (the
|
|
# "Software"), to deal in the Software without restriction, including
|
|
# without limitation the rights to use, copy, modify, merge, publish,
|
|
# distribute, sublicense, and/or sell copies of the Software, and to
|
|
# permit persons to whom the Software is furnished to do so, subject to
|
|
# the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be included
|
|
# in all copies or substantial portions of the Software.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
|
|
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
|
|
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
#
|
|
|
|
__revision__ = "src/engine/SCons/Defaults.py 3842 2008/12/20 22:59:52 scons"
|
|
|
|
|
|
|
|
import os
|
|
import os.path
|
|
import shutil
|
|
import stat
|
|
import string
|
|
import time
|
|
import types
|
|
import sys
|
|
|
|
import SCons.Action
|
|
import SCons.Builder
|
|
import SCons.CacheDir
|
|
import SCons.Environment
|
|
import SCons.PathList
|
|
import SCons.Subst
|
|
import SCons.Tool
|
|
|
|
# A placeholder for a default Environment (for fetching source files
|
|
# from source code management systems and the like). This must be
|
|
# initialized later, after the top-level directory is set by the calling
|
|
# interface.
|
|
_default_env = None
|
|
|
|
# Lazily instantiate the default environment so the overhead of creating
|
|
# it doesn't apply when it's not needed.
|
|
def _fetch_DefaultEnvironment(*args, **kw):
|
|
"""
|
|
Returns the already-created default construction environment.
|
|
"""
|
|
global _default_env
|
|
return _default_env
|
|
|
|
def DefaultEnvironment(*args, **kw):
|
|
"""
|
|
Initial public entry point for creating the default construction
|
|
Environment.
|
|
|
|
After creating the environment, we overwrite our name
|
|
(DefaultEnvironment) with the _fetch_DefaultEnvironment() function,
|
|
which more efficiently returns the initialized default construction
|
|
environment without checking for its existence.
|
|
|
|
(This function still exists with its _default_check because someone
|
|
else (*cough* Script/__init__.py *cough*) may keep a reference
|
|
to this function. So we can't use the fully functional idiom of
|
|
having the name originally be a something that *only* creates the
|
|
construction environment and then overwrites the name.)
|
|
"""
|
|
global _default_env
|
|
if not _default_env:
|
|
import SCons.Util
|
|
_default_env = apply(SCons.Environment.Environment, args, kw)
|
|
if SCons.Util.md5:
|
|
_default_env.Decider('MD5')
|
|
else:
|
|
_default_env.Decider('timestamp-match')
|
|
global DefaultEnvironment
|
|
DefaultEnvironment = _fetch_DefaultEnvironment
|
|
_default_env._CacheDir_path = None
|
|
return _default_env
|
|
|
|
# Emitters for setting the shared attribute on object files,
|
|
# and an action for checking that all of the source files
|
|
# going into a shared library are, in fact, shared.
|
|
def StaticObjectEmitter(target, source, env):
|
|
for tgt in target:
|
|
tgt.attributes.shared = None
|
|
return (target, source)
|
|
|
|
def SharedObjectEmitter(target, source, env):
|
|
for tgt in target:
|
|
tgt.attributes.shared = 1
|
|
return (target, source)
|
|
|
|
def SharedFlagChecker(source, target, env):
|
|
same = env.subst('$STATIC_AND_SHARED_OBJECTS_ARE_THE_SAME')
|
|
if same == '0' or same == '' or same == 'False':
|
|
for src in source:
|
|
try:
|
|
shared = src.attributes.shared
|
|
except AttributeError:
|
|
shared = None
|
|
if not shared:
|
|
raise SCons.Errors.UserError, "Source file: %s is static and is not compatible with shared target: %s" % (src, target[0])
|
|
|
|
SharedCheck = SCons.Action.Action(SharedFlagChecker, None)
|
|
|
|
# Some people were using these variable name before we made
|
|
# SourceFileScanner part of the public interface. Don't break their
|
|
# SConscript files until we've given them some fair warning and a
|
|
# transition period.
|
|
CScan = SCons.Tool.CScanner
|
|
DScan = SCons.Tool.DScanner
|
|
LaTeXScan = SCons.Tool.LaTeXScanner
|
|
ObjSourceScan = SCons.Tool.SourceFileScanner
|
|
ProgScan = SCons.Tool.ProgramScanner
|
|
|
|
# These aren't really tool scanners, so they don't quite belong with
|
|
# the rest of those in Tool/__init__.py, but I'm not sure where else
|
|
# they should go. Leave them here for now.
|
|
import SCons.Scanner.Dir
|
|
DirScanner = SCons.Scanner.Dir.DirScanner()
|
|
DirEntryScanner = SCons.Scanner.Dir.DirEntryScanner()
|
|
|
|
# Actions for common languages.
|
|
CAction = SCons.Action.Action("$CCCOM", "$CCCOMSTR")
|
|
ShCAction = SCons.Action.Action("$SHCCCOM", "$SHCCCOMSTR")
|
|
CXXAction = SCons.Action.Action("$CXXCOM", "$CXXCOMSTR")
|
|
ShCXXAction = SCons.Action.Action("$SHCXXCOM", "$SHCXXCOMSTR")
|
|
|
|
ASAction = SCons.Action.Action("$ASCOM", "$ASCOMSTR")
|
|
ASPPAction = SCons.Action.Action("$ASPPCOM", "$ASPPCOMSTR")
|
|
|
|
LinkAction = SCons.Action.Action("$LINKCOM", "$LINKCOMSTR")
|
|
ShLinkAction = SCons.Action.Action("$SHLINKCOM", "$SHLINKCOMSTR")
|
|
|
|
LdModuleLinkAction = SCons.Action.Action("$LDMODULECOM", "$LDMODULECOMSTR")
|
|
|
|
# Common tasks that we allow users to perform in platform-independent
|
|
# ways by creating ActionFactory instances.
|
|
ActionFactory = SCons.Action.ActionFactory
|
|
|
|
def get_paths_str(dest):
|
|
# If dest is a list, we need to manually call str() on each element
|
|
if SCons.Util.is_List(dest):
|
|
elem_strs = []
|
|
for element in dest:
|
|
elem_strs.append('"' + str(element) + '"')
|
|
return '[' + string.join(elem_strs, ', ') + ']'
|
|
else:
|
|
return '"' + str(dest) + '"'
|
|
|
|
def chmod_func(dest, mode):
|
|
SCons.Node.FS.invalidate_node_memos(dest)
|
|
if not SCons.Util.is_List(dest):
|
|
dest = [dest]
|
|
for element in dest:
|
|
os.chmod(str(element), mode)
|
|
|
|
def chmod_strfunc(dest, mode):
|
|
return 'Chmod(%s, 0%o)' % (get_paths_str(dest), mode)
|
|
|
|
Chmod = ActionFactory(chmod_func, chmod_strfunc)
|
|
|
|
def copy_func(dest, src):
|
|
SCons.Node.FS.invalidate_node_memos(dest)
|
|
if SCons.Util.is_List(src) and os.path.isdir(dest):
|
|
for file in src:
|
|
shutil.copy2(file, dest)
|
|
return 0
|
|
elif os.path.isfile(src):
|
|
return shutil.copy2(src, dest)
|
|
else:
|
|
return shutil.copytree(src, dest, 1)
|
|
|
|
Copy = ActionFactory(copy_func,
|
|
lambda dest, src: 'Copy("%s", "%s")' % (dest, src),
|
|
convert=str)
|
|
|
|
def delete_func(dest, must_exist=0):
|
|
SCons.Node.FS.invalidate_node_memos(dest)
|
|
if not SCons.Util.is_List(dest):
|
|
dest = [dest]
|
|
for entry in dest:
|
|
entry = str(entry)
|
|
if not must_exist and not os.path.exists(entry):
|
|
continue
|
|
if not os.path.exists(entry) or os.path.isfile(entry):
|
|
os.unlink(entry)
|
|
continue
|
|
else:
|
|
shutil.rmtree(entry, 1)
|
|
continue
|
|
|
|
def delete_strfunc(dest, must_exist=0):
|
|
return 'Delete(%s)' % get_paths_str(dest)
|
|
|
|
Delete = ActionFactory(delete_func, delete_strfunc)
|
|
|
|
def mkdir_func(dest):
|
|
SCons.Node.FS.invalidate_node_memos(dest)
|
|
if not SCons.Util.is_List(dest):
|
|
dest = [dest]
|
|
for entry in dest:
|
|
os.makedirs(str(entry))
|
|
|
|
Mkdir = ActionFactory(mkdir_func,
|
|
lambda dir: 'Mkdir(%s)' % get_paths_str(dir))
|
|
|
|
def move_func(dest, src):
|
|
SCons.Node.FS.invalidate_node_memos(dest)
|
|
SCons.Node.FS.invalidate_node_memos(src)
|
|
os.rename(src, dest)
|
|
|
|
Move = ActionFactory(move_func,
|
|
lambda dest, src: 'Move("%s", "%s")' % (dest, src),
|
|
convert=str)
|
|
|
|
def touch_func(dest):
|
|
SCons.Node.FS.invalidate_node_memos(dest)
|
|
if not SCons.Util.is_List(dest):
|
|
dest = [dest]
|
|
for file in dest:
|
|
file = str(file)
|
|
mtime = int(time.time())
|
|
if os.path.exists(file):
|
|
atime = os.path.getatime(file)
|
|
else:
|
|
open(file, 'w')
|
|
atime = mtime
|
|
os.utime(file, (atime, mtime))
|
|
|
|
Touch = ActionFactory(touch_func,
|
|
lambda file: 'Touch(%s)' % get_paths_str(file))
|
|
|
|
# Internal utility functions
|
|
|
|
def _concat(prefix, list, suffix, env, f=lambda x: x, target=None, source=None):
|
|
"""
|
|
Creates a new list from 'list' by first interpolating each element
|
|
in the list using the 'env' dictionary and then calling f on the
|
|
list, and finally calling _concat_ixes to concatenate 'prefix' and
|
|
'suffix' onto each element of the list.
|
|
"""
|
|
if not list:
|
|
return list
|
|
|
|
l = f(SCons.PathList.PathList(list).subst_path(env, target, source))
|
|
if not l is None:
|
|
list = l
|
|
|
|
return _concat_ixes(prefix, list, suffix, env)
|
|
|
|
def _concat_ixes(prefix, list, suffix, env):
|
|
"""
|
|
Creates a new list from 'list' by concatenating the 'prefix' and
|
|
'suffix' arguments onto each element of the list. A trailing space
|
|
on 'prefix' or leading space on 'suffix' will cause them to be put
|
|
into separate list elements rather than being concatenated.
|
|
"""
|
|
|
|
result = []
|
|
|
|
# ensure that prefix and suffix are strings
|
|
prefix = str(env.subst(prefix, SCons.Subst.SUBST_RAW))
|
|
suffix = str(env.subst(suffix, SCons.Subst.SUBST_RAW))
|
|
|
|
for x in list:
|
|
if isinstance(x, SCons.Node.FS.File):
|
|
result.append(x)
|
|
continue
|
|
x = str(x)
|
|
if x:
|
|
|
|
if prefix:
|
|
if prefix[-1] == ' ':
|
|
result.append(prefix[:-1])
|
|
elif x[:len(prefix)] != prefix:
|
|
x = prefix + x
|
|
|
|
result.append(x)
|
|
|
|
if suffix:
|
|
if suffix[0] == ' ':
|
|
result.append(suffix[1:])
|
|
elif x[-len(suffix):] != suffix:
|
|
result[-1] = result[-1]+suffix
|
|
|
|
return result
|
|
|
|
def _stripixes(prefix, list, suffix, stripprefixes, stripsuffixes, env, c=None):
|
|
"""
|
|
This is a wrapper around _concat()/_concat_ixes() that checks for the
|
|
existence of prefixes or suffixes on list elements and strips them
|
|
where it finds them. This is used by tools (like the GNU linker)
|
|
that need to turn something like 'libfoo.a' into '-lfoo'.
|
|
"""
|
|
|
|
if not list:
|
|
return list
|
|
|
|
if not callable(c):
|
|
env_c = env['_concat']
|
|
if env_c != _concat and callable(env_c):
|
|
# There's a custom _concat() method in the construction
|
|
# environment, and we've allowed people to set that in
|
|
# the past (see test/custom-concat.py), so preserve the
|
|
# backwards compatibility.
|
|
c = env_c
|
|
else:
|
|
c = _concat_ixes
|
|
|
|
stripprefixes = map(env.subst, SCons.Util.flatten(stripprefixes))
|
|
stripsuffixes = map(env.subst, SCons.Util.flatten(stripsuffixes))
|
|
|
|
stripped = []
|
|
for l in SCons.PathList.PathList(list).subst_path(env, None, None):
|
|
if isinstance(l, SCons.Node.FS.File):
|
|
stripped.append(l)
|
|
continue
|
|
|
|
if not SCons.Util.is_String(l):
|
|
l = str(l)
|
|
|
|
for stripprefix in stripprefixes:
|
|
lsp = len(stripprefix)
|
|
if l[:lsp] == stripprefix:
|
|
l = l[lsp:]
|
|
# Do not strip more than one prefix
|
|
break
|
|
|
|
for stripsuffix in stripsuffixes:
|
|
lss = len(stripsuffix)
|
|
if l[-lss:] == stripsuffix:
|
|
l = l[:-lss]
|
|
# Do not strip more than one suffix
|
|
break
|
|
|
|
stripped.append(l)
|
|
|
|
return c(prefix, stripped, suffix, env)
|
|
|
|
def _defines(prefix, defs, suffix, env, c=_concat_ixes):
|
|
"""A wrapper around _concat_ixes that turns a list or string
|
|
into a list of C preprocessor command-line definitions.
|
|
"""
|
|
if SCons.Util.is_List(defs):
|
|
l = []
|
|
for d in defs:
|
|
if SCons.Util.is_List(d) or type(d) is types.TupleType:
|
|
l.append(str(d[0]) + '=' + str(d[1]))
|
|
else:
|
|
l.append(str(d))
|
|
elif SCons.Util.is_Dict(defs):
|
|
# The items in a dictionary are stored in random order, but
|
|
# if the order of the command-line options changes from
|
|
# invocation to invocation, then the signature of the command
|
|
# line will change and we'll get random unnecessary rebuilds.
|
|
# Consequently, we have to sort the keys to ensure a
|
|
# consistent order...
|
|
l = []
|
|
keys = defs.keys()
|
|
keys.sort()
|
|
for k in keys:
|
|
v = defs[k]
|
|
if v is None:
|
|
l.append(str(k))
|
|
else:
|
|
l.append(str(k) + '=' + str(v))
|
|
else:
|
|
l = [str(defs)]
|
|
return c(prefix, env.subst_path(l), suffix, env)
|
|
|
|
class NullCmdGenerator:
|
|
"""This is a callable class that can be used in place of other
|
|
command generators if you don't want them to do anything.
|
|
|
|
The __call__ method for this class simply returns the thing
|
|
you instantiated it with.
|
|
|
|
Example usage:
|
|
env["DO_NOTHING"] = NullCmdGenerator
|
|
env["LINKCOM"] = "${DO_NOTHING('$LINK $SOURCES $TARGET')}"
|
|
"""
|
|
|
|
def __init__(self, cmd):
|
|
self.cmd = cmd
|
|
|
|
def __call__(self, target, source, env, for_signature=None):
|
|
return self.cmd
|
|
|
|
class Variable_Method_Caller:
|
|
"""A class for finding a construction variable on the stack and
|
|
calling one of its methods.
|
|
|
|
We use this to support "construction variables" in our string
|
|
eval()s that actually stand in for methods--specifically, use
|
|
of "RDirs" in call to _concat that should actually execute the
|
|
"TARGET.RDirs" method. (We used to support this by creating a little
|
|
"build dictionary" that mapped RDirs to the method, but this got in
|
|
the way of Memoizing construction environments, because we had to
|
|
create new environment objects to hold the variables.)
|
|
"""
|
|
def __init__(self, variable, method):
|
|
self.variable = variable
|
|
self.method = method
|
|
def __call__(self, *args, **kw):
|
|
try: 1/0
|
|
except ZeroDivisionError:
|
|
# Don't start iterating with the current stack-frame to
|
|
# prevent creating reference cycles (f_back is safe).
|
|
frame = sys.exc_info()[2].tb_frame.f_back
|
|
variable = self.variable
|
|
while frame:
|
|
if frame.f_locals.has_key(variable):
|
|
v = frame.f_locals[variable]
|
|
if v:
|
|
method = getattr(v, self.method)
|
|
return apply(method, args, kw)
|
|
frame = frame.f_back
|
|
return None
|
|
|
|
ConstructionEnvironment = {
|
|
'BUILDERS' : {},
|
|
'SCANNERS' : [],
|
|
'CONFIGUREDIR' : '#/.sconf_temp',
|
|
'CONFIGURELOG' : '#/config.log',
|
|
'CPPSUFFIXES' : SCons.Tool.CSuffixes,
|
|
'DSUFFIXES' : SCons.Tool.DSuffixes,
|
|
'ENV' : {},
|
|
'IDLSUFFIXES' : SCons.Tool.IDLSuffixes,
|
|
'LATEXSUFFIXES' : SCons.Tool.LaTeXSuffixes,
|
|
'_concat' : _concat,
|
|
'_defines' : _defines,
|
|
'_stripixes' : _stripixes,
|
|
'_LIBFLAGS' : '${_concat(LIBLINKPREFIX, LIBS, LIBLINKSUFFIX, __env__)}',
|
|
'_LIBDIRFLAGS' : '$( ${_concat(LIBDIRPREFIX, LIBPATH, LIBDIRSUFFIX, __env__, RDirs, TARGET, SOURCE)} $)',
|
|
'_CPPINCFLAGS' : '$( ${_concat(INCPREFIX, CPPPATH, INCSUFFIX, __env__, RDirs, TARGET, SOURCE)} $)',
|
|
'_CPPDEFFLAGS' : '${_defines(CPPDEFPREFIX, CPPDEFINES, CPPDEFSUFFIX, __env__)}',
|
|
'TEMPFILE' : NullCmdGenerator,
|
|
'Dir' : Variable_Method_Caller('TARGET', 'Dir'),
|
|
'Dirs' : Variable_Method_Caller('TARGET', 'Dirs'),
|
|
'File' : Variable_Method_Caller('TARGET', 'File'),
|
|
'RDirs' : Variable_Method_Caller('TARGET', 'RDirs'),
|
|
}
|