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import md5
import subprocess
import SCons.Action
def default_variant_dir_generator(target, source, env, for_signature):
if env.GetOption('cache') != None:
return 'cached'
# If an option should affect the variant directory, name it here.
variant_options = [
'opt',
'dbg',
]
# Hash the named options and their values, and take the first 8 characters of the hash as
# the variant name
hasher = md5.md5()
for option in variant_options:
hasher.update(option)
hasher.update(str(env.GetOption(option)))
variant_dir = hasher.hexdigest()[0:8]
# If our option hash yields a well known hash, replace it with its name.
known_variant_hashes = {
'343e6678' : 'debug',
'85fcf9b0' : 'opt',
'981ce870' : 'debug',
'9fface73' : 'optdebug',
'c52b1cc3' : 'opt',
}
return known_variant_hashes.get(variant_dir, variant_dir)
def os_specific_variant_dir_generator(target, source, env, for_signature):
return '-'.join([
env['TARGET_OS'],
default_variant_dir_generator(target, source, env, for_signature)])
def get_toolchain_ver(env, tool):
# By default we don't know the version of each tool, and only report what
# command gets executed (gcc vs /opt/mongodbtoolchain/bin/gcc).
verstr = "version unknown"
proc = None
if env.ToolchainIs('clang', 'gcc'):
proc = SCons.Action._subproc(env,
env.subst("${%s} --version" % tool),
stdout=subprocess.PIPE,
stderr='devnull',
stdin='devnull',
universal_newlines=True,
error='raise',
shell=True)
verstr = proc.stdout.readline()
elif env.ToolchainIs('msvc') and env.TargetOSIs('windows'):
proc = SCons.Action._subproc(env,
env.subst("${%s}" % tool),
stdout='devnull',
stderr=subprocess.PIPE,
stdin='devnull',
universal_newlines=True,
error='raise',
shell=True)
verstr = proc.stderr.readline()
# If we started a process, we should drain its stdout/stderr and wait for
# it to end.
if proc:
proc.communicate()
return env.subst('${%s}: %s' % (tool, verstr))
# This is the tuple that will be returned by the buildInfo command and
# printed by the --version command-line option to mongod.
# Each tuple consists of:
# key (string)
# value (string)
# should be included in buildInfo output (bool)
# should be included in --version output (bool)
# The values will be passed through env.subst, so you can use any SCons variables you
# want to define them.
def default_buildinfo_environment_data():
return (
('distmod', '$MONGO_DISTMOD', True, True,),
('distarch', '$MONGO_DISTARCH', True, True,),
('cc', '$CC_VERSION', True, False,),
('ccflags', '$CCFLAGS', True, False,),
('cxx', '$CXX_VERSION', True, False,),
('cxxflags', '$CXXFLAGS', True, False,),
('linkflags', '$LINKFLAGS', True, False,),
('target_arch', '$TARGET_ARCH', True, True,),
('target_os', '$TARGET_OS', True, False,),
)
# If you want buildInfo and --version to be relatively empty, set
# env['MONGO_BUILDINFO_ENVIRONMENT_DATA'] = empty_buildinfo_environment_data()
def empty_buildinfo_environment_data():
return ()
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