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import os
import pathlib
import json
import platform as OsPlatform
import subprocess
thisdir = pathlib.Path(__file__).parent.absolute().resolve()
tooldir = ( thisdir / '..' / '..' ).absolute().resolve()
resourcedir = ( tooldir / '../resources' ).absolute().resolve()
bindir = ( tooldir / '../../../bin' ).absolute().resolve()
libdir = ( tooldir / '../../../lib' ).absolute().resolve()
def check_env_vars():
''' checks the OS environment variables '''
global configuration
global compilation
# Initially figure out if this is McStas or McXtrace
MCCODE_OVERRIDE = configuration["MCCODE"].upper() + '_OVERRIDE'
MCCODE_CFLAGS_OVERRIDE = configuration["MCCODE"].upper() + '_CFLAGS_OVERRIDE'
MCCODE_CC_OVERRIDE = configuration["MCCODE"].upper() + '_CC_OVERRIDE'
MCCODE_MPICC_OVERRIDE = configuration["MCCODE"].upper() + '_MPICC_OVERRIDE'
# MCCODE_LIB_DIR
if os.getenv(MCCODE_OVERRIDE) is not None:
configuration['MCCODE_LIB_DIR'] = os.getenv(MCCODE_OVERRIDE)
# CFLAGS
if os.getenv(MCCODE_CFLAGS_OVERRIDE) is not None:
compilation['CFLAGS'] = os.getenv(MCCODE_CFLAGS_OVERRIDE)
# CC
if os.getenv(MCCODE_CC_OVERRIDE) is not None:
compilation['CC'] = os.getenv(MCCODE_CC_OVERRIDE)
# MPICC
if os.getenv(MCCODE_MPICC_OVERRIDE) is not None:
compilation['MPICC'] = os.getenv(MCCODE_MPICC_OVERRIDE)
def load_config(path=None):
''' loads a json user config to the dictionaries in this module '''
global configuration
global compilation
global platform
global directories
if path is None:
level="system"
userconfig = os.path.join(os.path.dirname(__file__),"mccode_config.json")
info=""
elif path=="user":
level="user"
if OsPlatform.system() == 'Windows':
userdir = os.path.join(os.path.expandvars("$USERPROFILE"),"AppData",configuration['MCCODE'],configuration['MCCODE_VERSION'])
else:
userdir = os.path.join(os.path.expandvars("$HOME"),"." + configuration['MCCODE'],configuration['MCCODE_VERSION'])
userconfig = os.path.join(userdir,"mccode_config.json")
info = " from " + userconfig
if not os.path.isfile(userconfig):
return
else:
level="override"
userconfig= os.path.join(path,"mccode_config.json")
info = " from " + userconfig
#slightly nasty workaround to suppress print statement below:
if os.environ.get('MCCODE_SUPPRESS_LOAD_CONFIG_PRINT_STATEMENT','') != '1':
print("loading " + level + " configuration" + info )
text = open(userconfig).read()
obj = json.loads(text)
configuration = obj['configuration']
compilation = obj['compilation']
# Special handling of build-env detected settings on conda
if configuration['ISCONDAPKG']=='1':
# Map existing ${CONDA_PREFIX} 'symbols' to actual current CONDA_PREFIX
conda_prefix = os.environ.get('CONDA_PREFIX')
if conda_prefix:
entries_with_conda_prefix=['CFLAGS','NEXUSFLAGS','MPIFLAGS','OACCFLAGS','CC','MPICC','MPIRUN']
conda_prefix = str(pathlib.Path(conda_prefix).absolute().resolve())
for e in entries_with_conda_prefix:
if '${CONDA_PREFIX}' in compilation[e]:
compilation[e] = str(compilation[e].replace('${CONDA_PREFIX}',conda_prefix))
else:
compilation[e] = str(compilation[e])
# On macOS, map ${XCRUN_DETECTED} 'symbols' to actual, current "SDK" path from xcrun
if OsPlatform.system() == 'Darwin':
cmd = "xcrun --show-sdk-path"
errmsg = lambda : f'Errors encountered while executing cmd: {cmd}'
try:
returncode = 1
with subprocess.Popen( cmd,
shell=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE ) as proc:
xcrun_path = proc.communicate()[0].decode("utf-8").rstrip()
returncode = proc.returncode
except:
print(errmsg())
raise
entries_with_isysroot=['CFLAGS','NEXUSFLAGS','MPIFLAGS','OACCFLAGS','CC','MPICC','MPIRUN']
conda_prefix = str(pathlib.Path(xcrun_path).absolute().resolve())
for e in entries_with_isysroot:
if '${XCRUN_DETECTED}' in compilation[e]:
compilation[e] = str(compilation[e].replace('${XCRUN_DETECTED}',xcrun_path))
else:
compilation[e] = str(compilation[e])
platform = obj['platform']
directories = obj['directories']
# Fill in the location of MCCODE_LIB_DIR based on location of Python script
configuration["MCCODE_LIB_DIR"]=str(resourcedir) #NB: Is actually in the 'directories' part now (as a non-absolute directory name).
# Finally, set dynamically deduced directory paths:
directories['bindir'] = str( bindir )
directories['libdir'] = str( libdir )
directories['tooldir'] = str( tooldir )
directories['resourcedir'] = str( resourcedir )
directories['pydir'] = str( tooldir / 'Python' )
directories['datadir'] = str( resourcedir / 'data' )
directories['sharedir'] = str( resourcedir / 'share' )
directories['compdir'] = str( resourcedir )
directories['exampledir'] = str( resourcedir / 'examples' )
def save_user_config():
''' attempts to save the current values to a local .json file '''
text = json.dumps({'configuration' : configuration, 'compilation' : compilation, 'platform' : platform, 'directories' : directories}, indent=2)
if OsPlatform.system() == 'Windows':
homedirconf = os.path.join(os.path.expandvars("$USERPROFILE"),"AppData",configuration['MCCODE'])
else:
homedirconf = os.path.join(os.path.expandvars("$HOME"),"." + configuration['MCCODE'])
if not os.path.isdir(homedirconf):
try:
os.mkdir(homedirconf)
except Exception as e:
print("Directory %s could not be created: %s " % (homedirconf, e.__str__()))
userdir = os.path.join(homedirconf,configuration['MCCODE_VERSION'])
if not os.path.isdir(userdir):
try:
os.mkdir(userdir)
except Exception as e:
print("Directory %s could not be created: %s " % (userdir, e.__str__()))
userconfig = os.path.join(userdir,"mccode_config.json")
f = None
try:
f = open(str(userconfig), 'w')
f.write(text)
print("userconfig saved to %s" % userconfig)
except Exception as e:
print("userconfig could not be saved to %s: %s" % (userconfig, e.__str__()))
finally:
if f:
f.close()
def get_options():
''' values below are not enforced in the dicts, but probably used to populate certain gui menus '''
if OsPlatform.system() == 'Windows':
suffix='-pl'
#suffix2='.pl'
else:
suffix='.pl'
#suffix2=''
if configuration['MCCODE'] == "mcstas":
prefix = "mc"
mcdisplay_lst = [prefix+"display-webgl",
prefix+"display-webgl-classic",
prefix+"display-pyqtgraph",
prefix+"display-pyqtgraph --tof",
prefix+"display-matplotlib",
prefix+"display-matlab",
prefix+"display-cad",
prefix+"display-mantid"]
mcrun_lst = [prefix+"run", prefix+"run --format=NeXus", prefix+"run --format=NeXus --IDF"]
format_lst = ["McCode", "NeXus", "NeXus --IDF", "NeXus -c", "NeXus --IDF -c"]
else:
prefix = "mx"
mcdisplay_lst = [prefix+"display-webgl",
prefix+"display-webgl-classic",
prefix+"display-pyqtgraph",
prefix+"display-matplotlib",
prefix+"display-matlab",
prefix+"display-cad"]
mcrun_lst = [prefix+"run", prefix+"run --format=NeXus"]
format_lst = ["McCode", "NeXus", "NeXus -c"]
mcplot_lst = [prefix+"plot-pyqtgraph",
prefix+"plot-matplotlib",
prefix+"plot-matlab",
prefix+"plot-html"]
return mcrun_lst, mcplot_lst, mcdisplay_lst, format_lst
def get_mccode_prefix():
''' returns 'mc' or 'mx' depending on system configuration '''
if configuration["MCCODE"] == "mcstas":
return "mc"
else:
return "mx"
'''
mcstas/mcxtrace configuration.
'''
configuration = {
}
'''
Compilation, parallelisation etc.
'''
compilation = {
}
'''
Platform settings
'''
platform = {
}
'''
Directories
'''
directories = {
}
load_config()
# Set environment variables according to the above
os.environ[configuration["MCCODE"].upper()] = str(resourcedir)
os.environ["PATH"] = '%s%s%s'%(str(bindir),os.pathsep,os.environ.get("PATH",''))
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