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15 """A set of functions performing routine administrative I/O tasks."""
16
17 from __future__ import absolute_import
18 from __future__ import print_function
19 import contextlib
20 import itertools
21 import logging
22 import os
23 import re
24 import signal
25 import subprocess
26 import sys
27 import optparse
28 import time
29 import shutil
30 import stat
31 import traceback
32 import gzip as ziplib
33 from distutils.version import LooseVersion, StrictVersion
34 import six
35 from six.moves import zip_longest
36 from six.moves import range
37 from six.moves import zip
38 from six.moves import input
39 StringIO = six
40 if six.PY3:
41 import io
42 file = io.IOBase
43 try:
44
45 import madgraph
46 except Exception as error:
47
48 import internal
49 from internal import MadGraph5Error, InvalidCmd
50 import internal.files as files
51 MADEVENT = True
52 else:
53 from madgraph import MadGraph5Error, InvalidCmd
54 import madgraph.iolibs.files as files
55 MADEVENT = False
56
57
58 logger = logging.getLogger('cmdprint.ext_program')
59 logger_stderr = logging.getLogger('madevent.misc')
60 pjoin = os.path.join
66 """Parse a newline separated list of "param=value" as a dictionnary
67 """
68
69 info_dict = {}
70 pattern = re.compile("(?P<name>\w*)\s*=\s*(?P<value>.*)",
71 re.IGNORECASE | re.VERBOSE)
72 for entry in fsock:
73 entry = entry.strip()
74 if len(entry) == 0: continue
75 m = pattern.match(entry)
76 if m is not None:
77 info_dict[m.group('name')] = m.group('value')
78 else:
79 raise IOError("String %s is not a valid info string" % entry)
80
81 return info_dict
82
83
84 -def glob(name, path=''):
85 """call to glob.glob with automatic security on path"""
86 import glob as glob_module
87 path = re.sub('(?P<name>\?|\*|\[|\])', '[\g<name>]', path)
88 return glob_module.glob(pjoin(path, name))
89
90
91
92
93 -def mute_logger(names=['madgraph','ALOHA','cmdprint','madevent'], levels=[50,50,50,50]):
94 """change the logger level and restore those at their initial value at the
95 end of the function decorated."""
96 def control_logger(f):
97 def restore_old_levels(names, levels):
98 for name, level in zip(names, levels):
99 log_module = logging.getLogger(name)
100 log_module.setLevel(level)
101
102 def f_with_no_logger(self, *args, **opt):
103 old_levels = []
104 for name, level in zip(names, levels):
105 log_module = logging.getLogger(name)
106 old_levels.append(log_module.level)
107 log_module.setLevel(level)
108 try:
109 out = f(self, *args, **opt)
110 restore_old_levels(names, old_levels)
111 return out
112 except:
113 restore_old_levels(names, old_levels)
114 raise
115
116 return f_with_no_logger
117 return control_logger
118
119 PACKAGE_INFO = {}
124 """Returns the current version information of the MadGraph5_aMC@NLO package,
125 as written in the VERSION text file. If the file cannot be found,
126 a dictionary with empty values is returned. As an option, an info
127 string can be passed to be read instead of the file content.
128 """
129 global PACKAGE_INFO
130
131 if info_str:
132 info_dict = parse_info_str(StringIO.StringIO(info_str))
133 return info_dict
134
135 if PACKAGE_INFO:
136 return PACKAGE_INFO
137
138 elif MADEVENT:
139 info_dict ={}
140 info_dict['version'] = open(pjoin(internal.__path__[0],'..','..','MGMEVersion.txt')).read().strip()
141 info_dict['date'] = '20xx-xx-xx'
142 PACKAGE_INFO = info_dict
143 else:
144 if PACKAGE_INFO:
145 return PACKAGE_INFO
146 info_dict = files.read_from_file(os.path.join(madgraph.__path__[0],
147 "VERSION"),
148 parse_info_str,
149 print_error=False)
150 PACKAGE_INFO = info_dict
151
152 return info_dict
153
158 """Returns the present time info for use in MG5 command history header.
159 """
160
161 creation_time = time.asctime()
162 time_info = {'time': creation_time,
163 'fill': ' ' * (26 - len(creation_time))}
164
165 return time_info
166
172 """ Returns None if compatible or, it not compatible, a string explaining
173 why it is so."""
174
175 ma5_version = None
176 try:
177 for line in open(pjoin(ma5path,'version.txt'),'r').read().split('\n'):
178 if line.startswith('MA5 version :'):
179 ma5_version=LooseVersion(line[13:].strip())
180 break
181 except:
182 ma5_version = None
183
184 if ma5_version is None:
185 reason = "No MadAnalysis5 version number could be read from the path supplied '%s'."%ma5path
186 reason += "\nThe specified version of MadAnalysis5 will not be active in your session."
187 return reason
188
189 mg5_version = None
190 try:
191 info = get_pkg_info()
192 mg5_version = LooseVersion(info['version'])
193 except:
194 mg5_version = None
195
196
197 if not mg5_version:
198 return None
199
200 if mg5_version < LooseVersion("2.6.1") and ma5_version >= LooseVersion("1.6.32"):
201 reason = "This active MG5aMC version is too old (v%s) for your selected version of MadAnalysis5 (v%s)"%(mg5_version,ma5_version)
202 reason += "\nUpgrade MG5aMC or re-install MA5 from within MG5aMC to fix this compatibility issue."
203 reason += "\nThe specified version of MadAnalysis5 will not be active in your session."
204 return reason
205
206 if mg5_version >= LooseVersion("2.6.1") and ma5_version < LooseVersion("1.6.32"):
207 reason = "Your selected version of MadAnalysis5 (v%s) is too old for this active version of MG5aMC (v%s)."%(ma5_version,mg5_version)
208 reason += "\nRe-install MA5 from within MG5aMC to fix this compatibility issue."
209 reason += "\nThe specified version of MadAnalysis5 will not be active in your session."
210 return reason
211
212 return None
213
218 """Browse the subdirectories of the path 'start_path' and returns the first
219 one found which contains at least one file ending with the string extension
220 given in argument."""
221
222 if not os.path.isdir(start_path):
223 return None
224 subdirs=[pjoin(start_path,dir) for dir in os.listdir(start_path)]
225 for subdir in subdirs:
226 if os.path.isfile(subdir):
227 if os.path.basename(subdir).endswith(extension):
228 return start_path
229 elif os.path.isdir(subdir):
230 path = find_includes_path(subdir, extension)
231 if path:
232 return path
233 return None
234
240 """ Get whether ninja supports quad prec in different ways"""
241
242
243 ninja_config = os.path.abspath(pjoin(
244 ninja_lib_path,os.pardir,'bin','ninja-config'))
245 if os.path.exists(ninja_config):
246 try:
247 p = Popen([ninja_config, '-quadsupport'], stdout=subprocess.PIPE,
248 stderr=subprocess.PIPE)
249 output, error = p.communicate()
250 return 'TRUE' in output.decode().upper()
251 except Exception:
252 pass
253
254
255
256 return False
257
258
259
260
261 -def which(program):
262 def is_exe(fpath):
263 return os.path.exists(fpath) and os.access(\
264 os.path.realpath(fpath), os.X_OK)
265
266 if not program:
267 return None
268
269 fpath, fname = os.path.split(program)
270 if fpath:
271 if is_exe(program):
272 return program
273 else:
274 for path in os.environ["PATH"].split(os.pathsep):
275 exe_file = os.path.join(path, program)
276 if is_exe(exe_file):
277 return exe_file
278 return None
279
295
301 """ Make sure to turn off some dependency of MG5aMC. """
302
303 def tell(msg):
304 if log == 'stdout':
305 print(msg)
306 elif callable(log):
307 log(msg)
308
309
310 if dependency in ['pjfry','golem','samurai','ninja','collier']:
311 if cmd.options[dependency] not in ['None',None,'']:
312 tell("Deactivating MG5_aMC dependency '%s'"%dependency)
313 cmd.options[dependency] = None
314
316 """ Checks whether the specfieid MG dependency can be activated if it was
317 not turned off in MG5 options."""
318
319 def tell(msg):
320 if log == 'stdout':
321 print(msg)
322 elif callable(log):
323 log(msg)
324
325 if cmd is None:
326 cmd = MGCmd.MasterCmd()
327
328 if dependency=='pjfry':
329 if cmd.options['pjfry'] in ['None',None,''] or \
330 (cmd.options['pjfry'] == 'auto' and which_lib('libpjfry.a') is None) or\
331 which_lib(pjoin(cmd.options['pjfry'],'libpjfry.a')) is None:
332 tell("Installing PJFry...")
333 cmd.do_install('PJFry')
334
335 if dependency=='golem':
336 if cmd.options['golem'] in ['None',None,''] or\
337 (cmd.options['golem'] == 'auto' and which_lib('libgolem.a') is None) or\
338 which_lib(pjoin(cmd.options['golem'],'libgolem.a')) is None:
339 tell("Installing Golem95...")
340 cmd.do_install('Golem95')
341
342 if dependency=='samurai':
343 raise MadGraph5Error('Samurai cannot yet be automatically installed.')
344
345 if dependency=='ninja':
346 if cmd.options['ninja'] in ['None',None,''] or\
347 (cmd.options['ninja'] == './HEPTools/lib' and not MG5dir is None and\
348 which_lib(pjoin(MG5dir,cmd.options['ninja'],'libninja.a')) is None):
349 tell("Installing ninja...")
350 cmd.do_install('ninja')
351
352 if dependency=='collier':
353 if cmd.options['collier'] in ['None',None,''] or\
354 (cmd.options['collier'] == 'auto' and which_lib('libcollier.a') is None) or\
355 which_lib(pjoin(cmd.options['collier'],'libcollier.a')) is None:
356 tell("Installing COLLIER...")
357 cmd.do_install('collier')
358
363 def is_lib(fpath):
364 return os.path.exists(fpath) and os.access(fpath, os.R_OK)
365
366 if not lib:
367 return None
368
369 fpath, fname = os.path.split(lib)
370 if fpath:
371 if is_lib(lib):
372 return lib
373 else:
374 locations = sum([os.environ[env_path].split(os.pathsep) for env_path in
375 ["DYLD_LIBRARY_PATH","LD_LIBRARY_PATH","LIBRARY_PATH","PATH"]
376 if env_path in os.environ],[])
377 for path in locations:
378 lib_file = os.path.join(path, lib)
379 if is_lib(lib_file):
380 return lib_file
381 return None
382
387 """ Return nice information on the current variable """
388
389
390 info = [('type',type(var)),('str', var)]
391 if hasattr(var, 'func_doc'):
392 info.append( ('DOC', var.__doc__) )
393 if hasattr(var, '__doc__'):
394 info.append( ('DOC', var.__doc__) )
395 if hasattr(var, '__dict__'):
396 info.append( ('ATTRIBUTE', list(var.__dict__.keys()) ))
397
398 spaces = ' ' * nb_space
399
400 outstr=''
401 for name, value in info:
402 outstr += '%s%3s : %s\n' % (spaces,name, value)
403
404 return outstr
405
406
407
408
409 wait_once = False
411
412 def deco_retry(f):
413 def deco_f_retry(*args, **opt):
414 for i in range(nb_try):
415 try:
416 return f(*args, **opt)
417 except KeyboardInterrupt:
418 raise
419 except Exception as error:
420 global wait_once
421 if not wait_once:
422 text = """Start waiting for update. (more info in debug mode)"""
423 logger.info(text)
424 logger_stderr.debug('fail to do %s function with %s args. %s try on a max of %s (%s waiting time)' %
425 (str(f), ', '.join([str(a) for a in args]), i+1, nb_try, sleep * (i+1)))
426 logger_stderr.debug('error is %s' % str(error))
427 if __debug__: logger_stderr.debug('and occurred at :'+traceback.format_exc())
428 wait_once = True
429 time.sleep(sleep * (i+1))
430
431 if __debug__:
432 raise
433 raise error.__class__('[Fail %i times] \n %s ' % (i+1, error))
434 return deco_f_retry
435 return deco_retry
436
441 """return a name of the type xxxx[A-B]yyy
442 where xxx and yyy are the common part between the two names.
443 """
444
445
446 base = [first[i] for i in range(len(first)) if first[:i+1] == last[:i+1]]
447
448 while base and base[0].isdigit():
449 base = base[1:]
450
451 end = [first[-(i+1)] for i in range(len(first)) if first[-(i+1):] == last[-(i+1):]]
452
453 while end and end[-1].isdigit():
454 end = end[:-1]
455 end.reverse()
456
457 base, end = ''.join(base), ''.join(end)
458 if end:
459 name = "%s[%s-%s]%s" % (base, first[len(base):-len(end)], last[len(base):-len(end)],end)
460 else:
461 name = "%s[%s-%s]%s" % (base, first[len(base):], last[len(base):],end)
462 return name
463
464
465
466
467 -def compile(arg=[], cwd=None, mode='fortran', job_specs = True, nb_core=1 ,**opt):
468 """compile a given directory"""
469
470 if 'nocompile' in opt:
471 if opt['nocompile'] == True:
472 if not arg:
473 return
474 if cwd:
475 executable = pjoin(cwd, arg[0])
476 else:
477 executable = arg[0]
478 if os.path.exists(executable):
479 return
480 del opt['nocompile']
481
482 cmd = ['make']
483 try:
484 if nb_core > 1:
485 cmd.append('-j%s' % nb_core)
486 cmd += arg
487 p = subprocess.Popen(cmd, stdout=subprocess.PIPE,
488 stderr=subprocess.STDOUT, cwd=cwd, **opt)
489 (out, err) = p.communicate()
490 except OSError as error:
491 if cwd and not os.path.exists(cwd):
492 raise OSError('Directory %s doesn\'t exists. Impossible to run make' % cwd)
493 else:
494 error_text = "Impossible to compile %s directory\n" % cwd
495 error_text += "Trying to launch make command returns:\n"
496 error_text += " " + str(error) + "\n"
497 error_text += "In general this means that your computer is not able to compile."
498 if sys.platform == "darwin":
499 error_text += "Note that MacOSX doesn\'t have gmake/gfortan install by default.\n"
500 error_text += "Xcode contains gmake. For gfortran we advise: http://hpc.sourceforge.net/"
501 raise MadGraph5Error(error_text)
502
503 if p.returncode:
504
505 if not cwd:
506 cwd = os.getcwd()
507 all_file = [f.lower() for f in os.listdir(cwd)]
508 if 'makefile' not in all_file and '-f' not in arg:
509 raise OSError('no makefile present in %s' % os.path.realpath(cwd))
510
511 if mode == 'fortran' and not (which('g77') or which('gfortran')):
512 error_msg = 'A fortran compiler (g77 or gfortran) is required to create this output.\n'
513 error_msg += 'Please install g77 or gfortran on your computer and retry.'
514 raise MadGraph5Error(error_msg)
515 elif mode == 'cpp' and not which('g++'):
516 error_msg ='A C++ compiler (g++) is required to create this output.\n'
517 error_msg += 'Please install g++ (which is part of the gcc package) on your computer and retry.'
518 raise MadGraph5Error(error_msg)
519
520 try:
521 out = out.decode('utf-8')
522 except Exception:
523 out = str(out)
524
525
526 if any(tag.upper() in out.upper() for tag in ['real(kind=16)','real*16',
527 'complex*32']) and mode == 'fortran' and not \
528 ''.join(get_gfortran_version().split('.')) >= '46':
529 if not which('gfortran'):
530 raise MadGraph5Error('The fortran compiler gfortran v4.6 or later '+\
531 'is required to compile %s.\nPlease install it and retry.'%cwd)
532 else:
533 logger_stderr.error('ERROR, you could not compile %s because'%cwd+\
534 ' your version of gfortran is older than 4.6. MadGraph5_aMC@NLO will carry on,'+\
535 ' but will not be able to compile an executable.')
536 return p.returncode
537
538 error_text = 'A compilation Error occurs '
539 if cwd:
540 error_text += 'when trying to compile %s.\n' % cwd
541 error_text += 'The compilation fails with the following output message:\n'
542 error_text += ' '+out.replace('\n','\n ')+'\n'
543 error_text += 'Please try to fix this compilations issue and retry.\n'
544 error_text += 'Help might be found at https://answers.launchpad.net/mg5amcnlo.\n'
545 error_text += 'If you think that this is a bug, you can report this at https://bugs.launchpad.net/mg5amcnlo'
546 raise MadGraph5Error(error_text)
547 return p.returncode
548
550 """ Returns the gfortran version as a string.
551 Returns '0' if it failed."""
552 try:
553 p = Popen([compiler, '-dumpversion'], stdout=subprocess.PIPE,
554 stderr=subprocess.PIPE)
555 output, error = p.communicate()
556 output = output.decode("utf-8")
557 version_finder=re.compile(r"(?P<version>\d[\d.]*)")
558 version = version_finder.search(output).group('version')
559 return version
560 except Exception as error:
561 raise error
562 return '0'
563
564 -def mod_compilator(directory, new='gfortran', current=None, compiler_type='gfortran'):
565
566 if type(directory)!=list:
567 directory=[directory]
568
569
570 file_to_change=find_makefile_in_dir(directory)
571 if compiler_type == 'gfortran':
572 comp_re = re.compile('^(\s*)FC\s*=\s*(.+)\s*$')
573 var = 'FC'
574 elif compiler_type == 'cpp':
575 comp_re = re.compile('^(\s*)CXX\s*=\s*(.+)\s*$')
576 var = 'CXX'
577 else:
578 MadGraph5Error, 'Unknown compiler type: %s' % compiler_type
579
580 mod = False
581 for name in file_to_change:
582 lines = open(name,'r').read().split('\n')
583 for iline, line in enumerate(lines):
584 result = comp_re.match(line)
585 if result:
586 if new != result.group(2) and '$' not in result.group(2):
587 mod = True
588 lines[iline] = result.group(1) + var + "=" + new
589 elif compiler_type == 'gfortran' and line.startswith('DEFAULT_F_COMPILER'):
590 lines[iline] = "DEFAULT_F_COMPILER = %s" % new
591 elif compiler_type == 'cpp' and line.startswith('DEFAULT_CPP_COMPILER'):
592 lines[iline] = "DEFAULT_CPP_COMPILER = %s" % new
593
594 if mod:
595 open(name,'w').write('\n'.join(lines))
596
597 mod = False
598
600 """Check whether pid exists in the current process table.
601 UNIX only.
602 https://stackoverflow.com/questions/568271/how-to-check-if-there-exists-a-process-with-a-given-pid-in-python
603 """
604 import errno
605
606 if pid < 0:
607 return False
608 if pid == 0:
609
610
611
612
613 raise ValueError('invalid PID 0')
614 try:
615 os.kill(pid, 0)
616 except OSError as err:
617 if err.errno == errno.ESRCH:
618
619 return False
620 elif err.errno == errno.EPERM:
621
622 return True
623 else:
624
625
626 raise
627 else:
628 return True
629
636 """mute_logger (designed to work as with statement),
637 files allow to redirect the output of the log to a given file.
638 """
639
640 - def __init__(self, names, levels, files=None, **opt):
641 assert isinstance(names, list)
642 assert isinstance(names, list)
643
644 self.names = names
645 self.levels = levels
646 if isinstance(files, list):
647 self.files = files
648 else:
649 self.files = [files] * len(names)
650 self.logger_saved_info = {}
651 self.opts = opt
652
663
664 - def __exit__(self, ctype, value, traceback ):
675
677 """ Setup the logger by redirecting them all to logfiles in tmp """
678
679 logs = full_logname.split('.')
680 lognames = [ '.'.join(logs[:(len(logs)-i)]) for i in\
681 range(len(full_logname.split('.')))]
682 for logname in lognames:
683 try:
684 os.remove(path)
685 except Exception as error:
686 pass
687 my_logger = logging.getLogger(logname)
688 hdlr = logging.FileHandler(path)
689
690
691 self.logger_saved_info[logname] = [hdlr, my_logger.handlers]
692
693
694 for old_hdlr in list(my_logger.handlers):
695 my_logger.removeHandler(old_hdlr)
696 my_logger.addHandler(hdlr)
697
698 my_logger.debug('Log of %s' % logname)
699
701 """ Setup the logger by redirecting them all to logfiles in tmp """
702
703 logs = full_logname.split('.')
704 lognames = [ '.'.join(logs[:(len(logs)-i)]) for i in\
705 range(len(full_logname.split('.')))]
706 for logname in lognames:
707 if path:
708 try:
709 os.remove(path)
710 except Exception as error:
711 pass
712 my_logger = logging.getLogger(logname)
713 if logname in self.logger_saved_info:
714 my_logger.removeHandler(self.logger_saved_info[logname][0])
715 for old_hdlr in self.logger_saved_info[logname][1]:
716 my_logger.addHandler(old_hdlr)
717 else:
718 my_logger.setLevel(level)
719
720
721
722
723 nb_open =0
726 """
727 A context manager to temporarily redirect stdout or stderr
728
729 e.g.:
730
731
732 with stdchannel_redirected(sys.stderr, os.devnull):
733 if compiler.has_function('clock_gettime', libraries=['rt']):
734 libraries.append('rt')
735 """
736
737 if logger.getEffectiveLevel()>5:
738
739 try:
740 oldstdchannel = os.dup(stdchannel.fileno())
741 dest_file = open(dest_filename, 'w')
742 os.dup2(dest_file.fileno(), stdchannel.fileno())
743 yield
744 finally:
745 if oldstdchannel is not None:
746 os.dup2(oldstdchannel, stdchannel.fileno())
747 os.close(oldstdchannel)
748 if dest_file is not None:
749 dest_file.close()
750 else:
751 try:
752 logger.debug('no stdout/stderr redirection due to debug level')
753 yield
754 finally:
755 return
756
759 '''
760 return the number of open file descriptors for current process
761
762 .. warning: will only work on UNIX-like os-es.
763 '''
764 import subprocess
765 import os
766
767 pid = os.getpid()
768 procs = subprocess.check_output(
769 [ "lsof", '-w', '-Ff', "-p", str( pid ) ] )
770 nprocs = [s for s in procs.split( '\n' ) if s and s[ 0 ] == 'f' and s[1: ].isdigit()]
771
772 return nprocs
773
775 """ Detects whether the specified C++ compiler is clang."""
776
777 try:
778 p = Popen([cpp_compiler, '--version'], stdout=subprocess.PIPE,
779 stderr=subprocess.PIPE)
780 output, error = p.communicate()
781 except Exception as error:
782
783 return False
784
785 output = output.decode()
786 return 'LLVM' in str(output) or "clang" in str(output)
787
790 """ Detects if the specified c++ compiler will normally link against the C++
791 standard library -lc++ or -libstdc++."""
792
793 is_clang = detect_if_cpp_compiler_is_clang(cpp_compiler)
794 if is_clang:
795 try:
796 import platform
797 v, _,_ = platform.mac_ver()
798 if not v:
799
800
801 return '-lc++'
802 else:
803 v = float(v.rsplit('.')[1])
804 if v >= 9:
805 return '-lc++'
806 else:
807 return '-lstdc++'
808 except:
809 return '-lstdc++'
810 return '-lstdc++'
811
813 """find the current compiler for the current directory"""
814
815
816
817 if compiler_type == 'fortran':
818 comp = re.compile("^\s*FC\s*=\s*([\w\/\\.\-]+)\s*")
819 elif compiler_type == 'cpp':
820 comp = re.compile("^\s*CXX\s*=\s*([\w\/\\.\-]+)\s*")
821 else:
822 MadGraph5Error, 'Unknown compiler type: %s' % compiler_type
823
824 for line in open(path):
825 if comp.search(line):
826 compiler = comp.search(line).groups()[0]
827 return compiler
828 elif compiler_type == 'fortran' and line.startswith('DEFAULT_F_COMPILER'):
829 return line.split('=')[1].strip()
830 elif compiler_type == 'cpp' and line.startswith('DEFAULT_CPP_COMPILER'):
831 return line.split('=')[1].strip()
832
834 """ return a list of all file starting with makefile in the given directory"""
835
836 out=[]
837
838 if type(directory)==list:
839 for name in directory:
840 out+=find_makefile_in_dir(name)
841 return out
842
843
844 for name in os.listdir(directory):
845 if os.path.isdir(directory+'/'+name):
846 out+=find_makefile_in_dir(directory+'/'+name)
847 elif os.path.isfile(directory+'/'+name) and name.lower().startswith('makefile'):
848 out.append(directory+'/'+name)
849 elif os.path.isfile(directory+'/'+name) and name.lower().startswith('make_opt'):
850 out.append(directory+'/'+name)
851 return out
852
854
855
856 os.path.walk('.', rm_file_extension, '.o')
857
858
859 libraries = ['libblocks.a', 'libgeneric_mw.a', 'libMWPS.a', 'libtools.a', 'libdhelas3.a',
860 'libdsample.a', 'libgeneric.a', 'libmodel.a', 'libpdf.a', 'libdhelas3.so', 'libTF.a',
861 'libdsample.so', 'libgeneric.so', 'libmodel.so', 'libpdf.so']
862 lib_pos='./lib'
863 [os.remove(os.path.join(lib_pos, lib)) for lib in libraries \
864 if os.path.exists(os.path.join(lib_pos, lib))]
865
879
883
887 replace_dict = dict(key_values)
888 replacement_function = lambda match: replace_dict[match.group(0)]
889 pattern = re.compile("|".join([re.escape(k) for k, v in key_values]), re.M)
890 return lambda string: pattern.sub(replacement_function, string)
891
894
897 def deco_check(f):
898 def deco_f(arg, *args, **opt):
899 try:
900 return f(arg, *args, **opt)
901 except OSError as error:
902 logger.debug('try to recover from %s' % error)
903 if isinstance(arg, (list,tuple)):
904 prog = arg[0]
905 else:
906 prog = arg
907
908
909 if error.errno == 13:
910 if os.path.exists(prog):
911 os.system('chmod +x %s' % prog)
912 elif 'cwd' in opt and opt['cwd'] and \
913 os.path.isfile(pjoin(opt['cwd'],arg[0])):
914 os.system('chmod +x %s' % pjoin(opt['cwd'],arg[0]))
915 return f(arg, *args, **opt)
916
917 elif error.errno == 2:
918
919 raise Exception('%s fails with no such file or directory' \
920 % arg)
921 else:
922 raise
923 return deco_f
924 return deco_check
925
926
927 @check_system_error()
928 -def call(arg, *args, **opt):
929 """nice way to call an external program with nice error treatment"""
930 try:
931 return subprocess.call(arg, *args, **opt)
932 except OSError:
933 arg[0] = './%s' % arg[0]
934 return subprocess.call(arg, *args, **opt)
935
936 @check_system_error()
937 -def Popen(arg, *args, **opt):
938 """nice way to call an external program with nice error treatment"""
939 return subprocess.Popen(arg, *args, **opt)
940
941 @check_system_error()
942 -def call_stdout(arg, *args, **opt):
943 """nice way to call an external program with nice error treatment"""
944 try:
945 out = subprocess.Popen(arg, *args, stdout=subprocess.PIPE, **opt)
946 except OSError:
947 arg[0] = './%s' % arg[0]
948 out = subprocess.call(arg, *args, stdout=subprocess.PIPE, **opt)
949
950 str_out = out.stdout.read().decode().strip()
951 return str_out
952
953
954
955 -def copytree(src, dst, symlinks = False, ignore = None):
956 if not os.path.exists(dst):
957 os.makedirs(dst)
958 shutil.copystat(src, dst)
959 lst = os.listdir(src)
960 if ignore:
961 excl = ignore(src, lst)
962 lst = [x for x in lst if x not in excl]
963 for item in lst:
964 s = os.path.join(src, item)
965 d = os.path.join(dst, item)
966 if symlinks and os.path.islink(s):
967 if os.path.lexists(d):
968 os.remove(d)
969 os.symlink(os.readlink(s), d)
970 try:
971 st = os.lstat(s)
972 mode = stat.S_IMODE(st.st_mode)
973 os.lchmod(d, mode)
974 except:
975 pass
976 elif os.path.isdir(s):
977 copytree(s, d, symlinks, ignore)
978 else:
979 shutil.copy2(s, d)
980
981
982
983 @multiple_try()
984 -def mult_try_open(filepath, *args, **opt):
985 """try to open a file with multiple try to ensure that filesystem is sync"""
986 return open(filepath, *args, ** opt)
987
988
989
990
991 -def tail(f, n, offset=None):
992 """Reads a n lines from f with an offset of offset lines. The return
993 value is a tuple in the form ``lines``.
994 """
995 avg_line_length = 74
996 to_read = n + (offset or 0)
997
998 while 1:
999 try:
1000 f.seek(-(avg_line_length * to_read), 2)
1001 except IOError:
1002
1003
1004 f.seek(0)
1005 pos = f.tell()
1006 lines = f.read().splitlines()
1007 if len(lines) >= to_read or pos == 0:
1008 return lines[-to_read:offset and -offset or None]
1009 avg_line_length *= 1.3
1010 avg_line_length = int(avg_line_length)
1011
1013 """ makes a piping fifo (First-in First-out) file and nicely intercepts
1014 error in case the file format of the target drive doesn't suppor tit."""
1015
1016 try:
1017 os.mkfifo(fifo_path)
1018 except:
1019 raise OSError('MadGraph5_aMCatNLO could not create a fifo file at:\n'+
1020 ' %s\n'%fifo_path+'Make sure that this file does not exist already'+
1021 ' and that the file format of the target drive supports fifo file (i.e not NFS).')
1022
1027 """return the last line of a file"""
1028
1029 return tail(fsock, 1)[0]
1030
1034 """A generator that returns the lines of a file in reverse order"""
1035 with open(filename) as fh:
1036 segment = None
1037 offset = 0
1038 fh.seek(0, os.SEEK_END)
1039 file_size = remaining_size = fh.tell()
1040 while remaining_size > 0:
1041 offset = min(file_size, offset + buf_size)
1042 fh.seek(file_size - offset)
1043 buffer = fh.read(min(remaining_size, buf_size))
1044 remaining_size -= buf_size
1045 lines = buffer.split('\n')
1046
1047
1048
1049 if segment is not None:
1050
1051
1052
1053 if buffer[-1] != '\n':
1054 lines[-1] += segment
1055 else:
1056 yield segment
1057 segment = lines[0]
1058 for index in range(len(lines) - 1, 0, -1):
1059 if lines[index]:
1060 yield lines[index]
1061
1062 if segment is not None:
1063 yield segment
1064
1082
1096
1102 """create a temporary directory and ensure this one to be cleaned.
1103 """
1104
1105 - def __init__(self, suffix='', prefix='tmp', dir=None):
1106 self.nb_try_remove = 0
1107 import tempfile
1108 self.path = tempfile.mkdtemp(suffix, prefix, dir)
1109
1110
1111 - def __exit__(self, ctype, value, traceback ):
1112
1113 if False and isinstance(value, Exception):
1114 sprint("Directory %s not cleaned. This directory can be removed manually" % self.path)
1115 return False
1116 try:
1117 shutil.rmtree(self.path)
1118 except OSError:
1119 self.nb_try_remove += 1
1120 if self.nb_try_remove < 3:
1121 time.sleep(10)
1122 self.__exit__(ctype, value, traceback)
1123 else:
1124 logger.warning("Directory %s not completely cleaned. This directory can be removed manually" % self.path)
1125
1128
1130 """replace an attribute of a class with another value for the time of the
1131 context manager
1132 """
1133
1134 - def __init__(self, cls, attribute, value):
1135
1136 self.cls = cls
1137 self.attribute = attribute
1138 if isinstance(attribute, list):
1139 self.old_value = []
1140 for key, onevalue in zip(attribute, value):
1141 self.old_value.append(getattr(cls, key))
1142 setattr(self.cls, key, onevalue)
1143 else:
1144 self.old_value = getattr(cls, attribute)
1145 setattr(self.cls, self.attribute, value)
1146
1147 - def __exit__(self, ctype, value, traceback ):
1148
1149 if isinstance(self.attribute, list):
1150 for key, old_value in zip(self.attribute, self.old_value):
1151 setattr(self.cls, key, old_value)
1152 else:
1153 setattr(self.cls, self.attribute, self.old_value)
1154
1156 return self.old_value
1157
1158
1160 def wrapper(*args, **kwds):
1161 with self:
1162 return func(*args, **kwds)
1163
1164
1165
1166
1167 -def gunzip(path, keep=False, stdout=None):
1168 """ a standard replacement for os.system('gunzip -f %s.gz ' % event_path)"""
1169
1170
1171 if not path.endswith(".gz"):
1172 if os.path.exists("%s.gz" % path):
1173 path = "%s.gz" % path
1174 else:
1175 raise Exception("%(path)s does not finish by .gz and the file %(path)s.gz does not exists" %\
1176 {"path": path})
1177
1178
1179
1180 if os.path.getsize(path) > 1e8:
1181 if stdout:
1182 os.system('gunzip -c %s > %s' % (path, stdout))
1183 else:
1184 os.system('gunzip %s' % path)
1185 return 0
1186
1187 if not stdout:
1188 stdout = path[:-3]
1189 try:
1190 gfile = ziplib.open(path, "r")
1191 except IOError:
1192 raise
1193 else:
1194 try:
1195 open(stdout,'w').write(gfile.read().decode())
1196 except IOError as error:
1197 sprint(error)
1198
1199 if stdout == path:
1200 return
1201 else:
1202 files.cp(path, stdout)
1203 finally:
1204 gfile.close()
1205 if not keep:
1206 os.remove(path)
1207 return 0
1208
1209 -def gzip(path, stdout=None, error=True, forceexternal=False):
1210 """ a standard replacement for os.system('gzip %s ' % path)"""
1211
1212
1213 if os.path.getsize(path) > 1e9 or forceexternal:
1214 call(['gzip', '-f', path])
1215 if stdout:
1216 if not stdout.endswith(".gz"):
1217 stdout = "%s.gz" % stdout
1218 shutil.move('%s.gz' % path, stdout)
1219 return
1220
1221 if not stdout:
1222 stdout = "%s.gz" % path
1223 elif not stdout.endswith(".gz"):
1224 stdout = "%s.gz" % stdout
1225
1226 try:
1227 ziplib.open(stdout,"w").write(open(path).read().encode())
1228 except OverflowError:
1229 gzip(path, stdout, error=error, forceexternal=True)
1230 except Exception:
1231 if error:
1232 raise
1233 else:
1234 return
1235 finally:
1236 os.remove(path)
1237
1242 """ a convinient class to open a file """
1243
1244 web_browser = None
1245 eps_viewer = None
1246 text_editor = None
1247 configured = False
1248
1250 """open a file"""
1251
1252
1253 if not self.configured:
1254 self.configure()
1255
1256 try:
1257 extension = filename.rsplit('.',1)[1]
1258 except IndexError:
1259 extension = ''
1260
1261
1262
1263 if extension in ['html','htm','php']:
1264 self.open_program(self.web_browser, filename, background=True)
1265 elif extension in ['ps','eps']:
1266 self.open_program(self.eps_viewer, filename, background=True)
1267 else:
1268 self.open_program(self.text_editor,filename, mac_check=False)
1269
1270
1271 @classmethod
1294
1295 @classmethod
1333
1334
1335 @staticmethod
1337 """find a valid shell program in the list"""
1338
1339 for p in possibility:
1340 if which(p):
1341 logger.info('Using default %s \"%s\". ' % (program, p) + \
1342 'Set another one in ./input/mg5_configuration.txt')
1343 return p
1344
1345 logger.info('No valid %s found. ' % program + \
1346 'Please set in ./input/mg5_configuration.txt')
1347 return None
1348
1349
1350 - def open_program(self, program, file_path, mac_check=True, background=False):
1351 """ open a file with a given program """
1352
1353 if mac_check==True and sys.platform == 'darwin':
1354 return self.open_mac_program(program, file_path)
1355
1356
1357 if program:
1358 arguments = program.split()
1359 arguments.append(file_path)
1360
1361 if not background:
1362 subprocess.call(arguments)
1363 else:
1364 import six.moves._thread
1365 six.moves._thread.start_new_thread(subprocess.call,(arguments,))
1366 else:
1367 logger.warning('Not able to open file %s since no program configured.' % file_path + \
1368 'Please set one in ./input/mg5_configuration.txt')
1369
1371 """ open a text with the text editor """
1372
1373 if not program:
1374
1375 os.system('open %s' % file_path)
1376 elif which(program):
1377
1378 arguments = program.split()
1379 arguments.append(file_path)
1380 subprocess.call(arguments)
1381 else:
1382
1383 os.system('open -a %s %s' % (program, file_path))
1384
1404
1406 """ Try and guess what shell type does the user use."""
1407 try:
1408 if os.environ['SHELL'].endswith('bash'):
1409 return 'bash'
1410 elif os.environ['SHELL'].endswith('tcsh'):
1411 return 'tcsh'
1412 else:
1413
1414 return None
1415 except KeyError:
1416 return None
1417
1419 """ check if a path is executable"""
1420 try:
1421 return os.access(path, os.X_OK)
1422 except Exception:
1423 return False
1424
1426 """Option Peaser which raise an error instead as calling exit"""
1427
1428 - def exit(self, status=0, msg=None):
1433
1435 """Returns the current line number in our program."""
1436
1437 if not __debug__:
1438 return
1439
1440
1441 import inspect
1442 if 'cond' in opt and not opt['cond']:
1443 return
1444
1445 use_print = False
1446 if 'use_print' in opt and opt['use_print']:
1447 use_print = True
1448
1449 if 'log' in opt:
1450 log = opt['log']
1451 else:
1452 log = logging.getLogger('madgraph')
1453 if 'level' in opt:
1454 level = opt['level']
1455 else:
1456 level = logging.getLogger('madgraph').level
1457 if level == 0:
1458 use_print = True
1459
1460
1461
1462
1463 if 'wait' in opt:
1464 wait = bool(opt['wait'])
1465 else:
1466 wait = False
1467
1468 lineno = inspect.currentframe().f_back.f_lineno
1469 fargs = inspect.getframeinfo(inspect.currentframe().f_back)
1470 filename, lineno = fargs[:2]
1471
1472
1473 try:
1474 source = inspect.getsourcelines(inspect.currentframe().f_back)
1475 line = source[0][lineno-source[1]]
1476 line = re.findall(r"misc\.sprint\(\s*(.*)\)\s*($|#)", line)[0][0]
1477 if line.startswith("'") and line.endswith("'") and line.count(",") ==0:
1478 line= ''
1479 elif line.startswith("\"") and line.endswith("\"") and line.count(",") ==0:
1480 line= ''
1481 elif line.startswith(("\"","'")) and len(args)==1 and "%" in line:
1482 line= ''
1483 except Exception:
1484 line=''
1485
1486 if line:
1487 intro = ' %s = \033[0m' % line
1488 else:
1489 intro = ''
1490
1491
1492 if not use_print:
1493 log.log(level, ' '.join([intro]+[str(a) for a in args]) + \
1494 ' \033[1;30m[%s at line %s]\033[0m' % (os.path.basename(filename), lineno))
1495 else:
1496 print(' '.join([intro]+[str(a) for a in args]) + \
1497 ' \033[1;30m[%s at line %s]\033[0m' % (os.path.basename(filename), lineno))
1498
1499 if wait:
1500 input('press_enter to continue')
1501 elif 'sleep' in opt:
1502 time.sleep(int(opt['sleep']))
1503
1504 return
1505
1506
1507
1508
1509 -def equal(a,b,sig_fig=6, zero_limit=True):
1510 """function to check if two float are approximatively equal"""
1511 import math
1512
1513 if isinstance(sig_fig, int):
1514 if not a or not b:
1515 if zero_limit:
1516 if zero_limit is not True:
1517 power = zero_limit
1518 else:
1519 power = sig_fig + 1
1520 else:
1521 return a == b
1522 else:
1523 power = sig_fig - int(math.log10(abs(a)))
1524
1525 return ( a==b or abs(int(a*10**power) - int(b*10**power)) < 10)
1526 else:
1527 return abs(a-b) < sig_fig
1528
1529
1530
1531
1532
1533
1534
1535 -class chdir:
1537 self.newPath = newPath
1538
1540 self.savedPath = os.getcwd()
1541 os.chdir(self.newPath)
1542
1543 - def __exit__(self, etype, value, traceback):
1544 os.chdir(self.savedPath)
1545
1546
1547
1548
1549
1550 -def timeout(func, args=(), kwargs={}, timeout_duration=1, default=None):
1551 '''This function will spwan a thread and run the given function using the args, kwargs and
1552 return the given default value if the timeout_duration is exceeded
1553 '''
1554 import threading
1555 class InterruptableThread(threading.Thread):
1556 def __init__(self):
1557 threading.Thread.__init__(self)
1558 self.result = default
1559 def run(self):
1560 try:
1561 self.result = func(*args, **kwargs)
1562 except Exception as error:
1563 print(error)
1564 self.result = default
1565 it = InterruptableThread()
1566 it.start()
1567 it.join(timeout_duration)
1568 return it.result
1569
1570 -def mmin(iter, default=None):
1576
1577
1578
1579
1580
1581 -class digest:
1582
1584 try:
1585 return self.test_hashlib()
1586 except Exception:
1587 pass
1588 try:
1589 return self.test_md5()
1590 except Exception:
1591 pass
1592 try:
1593 return self.test_zlib()
1594 except Exception:
1595 pass
1596
1598 import hashlib
1599 def digest(text):
1600 """using mg5 for the hash"""
1601 t = hashlib.md5()
1602 t.update(text.encode())
1603 return t.hexdigest()
1604 return digest
1605
1607 import md5
1608 def digest(text):
1609 """using mg5 for the hash"""
1610 t = md5.md5()
1611 t.update(text)
1612 return t.hexdigest()
1613 return digest
1614
1616 import zlib
1617 def digest(text):
1618 return zlib.adler32(text)
1619
1620 digest = digest().test_all()
1627 self.cmd_args = args
1628 self.cmd_opts = opts
1629 self.execution_state = False
1630
1632 self.max_vms_memory = 0
1633 self.max_rss_memory = 0
1634
1635 self.t1 = None
1636 self.t0 = time.time()
1637 self.p = subprocess.Popen(*self.cmd_args,**self.cmd_opts)
1638 self.execution_state = True
1639
1641 if not self.check_execution_state():
1642 return False
1643
1644 self.t1 = time.time()
1645
1646
1647
1648 flash = subprocess.Popen("ps -p %i -o rss"%self.p.pid,
1649 shell=True,stdout=subprocess.PIPE,stderr=open(os.devnull,"w"))
1650 stdout_list = flash.communicate()[0].decode().split('\n')
1651 rss_memory = int(stdout_list[1])
1652
1653 vms_memory = 0
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682 self.max_vms_memory = max(self.max_vms_memory,vms_memory)
1683 self.max_rss_memory = max(self.max_rss_memory,rss_memory)
1684
1685 return self.check_execution_state()
1686
1688
1689
1690 return self.p.poll() == None
1691
1693 if not self.execution_state:
1694 return False
1695 if self.is_running():
1696 return True
1697 self.executation_state = False
1698 self.t1 = time.time()
1699 return False
1700
1701 - def close(self,kill=False):
1702
1703 if self.p.poll() == None:
1704 if kill:
1705 self.p.kill()
1706 else:
1707 self.p.terminate()
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720 -class Applenotification(object):
1721
1723 self.init = False
1724 self.working = True
1725
1727 try:
1728 import Foundation
1729 import objc
1730 self.NSUserNotification = objc.lookUpClass('NSUserNotification')
1731 self.NSUserNotificationCenter = objc.lookUpClass('NSUserNotificationCenter')
1732 except:
1733 self.working=False
1734 self.working=True
1735
1736 - def __call__(self,subtitle, info_text, userInfo={}):
1737
1738 if not self.init:
1739 self.load_notification()
1740 if not self.working:
1741 return
1742 try:
1743 notification = self.NSUserNotification.alloc().init()
1744 notification.setTitle_('MadGraph5_aMC@NLO')
1745 notification.setSubtitle_(subtitle)
1746 notification.setInformativeText_(info_text)
1747 try:
1748 notification.setUserInfo_(userInfo)
1749 except:
1750 pass
1751 self.NSUserNotificationCenter.defaultUserNotificationCenter().scheduleNotification_(notification)
1752 except:
1753 pass
1754
1755
1756
1757 apple_notify = Applenotification()
1760
1761 done_notification = False
1762 message_aprilfirst =\
1763 {'error': ['Be careful, a cat is eating a lot of fish today. This makes the code unstable.',
1764 'Really, this sounds fishy.',
1765 'A Higgs boson walks into a church. The priest says "We don\'t allow Higgs bosons in here." The Higgs boson replies, "But without me, how can you have mass?"',
1766 "Why does Heisenberg detest driving cars? Because, every time he looks at the speedometer he gets lost!",
1767 "May the mass times acceleration be with you.",
1768 "NOTE: This product may actually be nine-dimensional. If this is the case, functionality is not affected by the extra five dimensions.",
1769 "IMPORTANT: This product is composed of 100%% matter: It is the responsibility of the User to make sure that it does not come in contact with antimatter.",
1770 "",
1771 'The fish are out of jokes. See you next year for more!'],
1772
1773
1774 }
1775
1776 default_banner_1 = "************************************************************\n" + \
1777 "* *\n" + \
1778 "* W E L C O M E to *\n" + \
1779 "* M A D G R A P H 5 _ a M C @ N L O *\n" + \
1780 "* *\n" + \
1781 "* *\n"
1782
1783
1784 default_banner_2 = "* *\n" + \
1785 "%s" + \
1786 "* *\n" + \
1787 "* The MadGraph5_aMC@NLO Development Team - Find us at *\n" + \
1788 "* https://server06.fynu.ucl.ac.be/projects/madgraph *\n" + \
1789 "* and *\n" + \
1790 "* http://amcatnlo.web.cern.ch/amcatnlo/ *\n" + \
1791 "* *\n" + \
1792 "* Type 'help' for in-line help. *\n" + \
1793 "* Type 'tutorial' to learn how MG5 works *\n" + \
1794 "* Type 'tutorial aMCatNLO' to learn how aMC@NLO works *\n" + \
1795 "* Type 'tutorial MadLoop' to learn how MadLoop works *\n" + \
1796 "* *\n" + \
1797 "************************************************************"
1798
1799 May4_banner = "* _____ *\n" + \
1800 "* ,-~\" \"~-. *\n" + \
1801 "* * ,^ ___ ^. * *\n" + \
1802 "* * / .^ ^. \ * *\n" + \
1803 "* * Y l o ! Y * *\n" + \
1804 "* * l_ `.___.' _,[ * *\n" + \
1805 "* * |^~\"--------------~\"\"^| * *\n" + \
1806 "* * ! May the 4th ! * *\n" + \
1807 "* * \ / * *\n" + \
1808 "* * ^. .^ * *\n" + \
1809 "* * \"-.._____.,-\" * *\n"
1810
1811 special_banner = {(4,5): May4_banner}
1812
1813
1852
1854 try:
1855 self.call_apple(msg)
1856 except:
1857 pass
1858
1864
1865
1867
1868
1869 p = subprocess.Popen("osascript -e 'get volume settings'", stdout=subprocess.PIPE, shell=True)
1870 output, _ = p.communicate()
1871 output = output.decode()
1872
1873 info = dict([[a.strip() for a in l.split(':',1)] for l in output.strip().split(',')])
1874 muted = False
1875 if 'output muted' in info and info['output muted'] == 'true':
1876 muted = True
1877 elif 'output volume' in info and info['output volume'] == '0':
1878 muted = True
1879
1880 if muted:
1881 if not EasterEgg.done_notification:
1882 apple_notify('On April first','turn up your volume!')
1883 EasterEgg.done_notification = True
1884 else:
1885 os.system('say %s' % msg)
1886
1887
1889
1890 fishPath = madgraph.MG5DIR+"/input/.cowgraph.cow"
1891 if os.path.exists(fishPath):
1892 fishPath = " -f " + fishPath
1893
1894
1895
1896 fishPole = which('cowthink')
1897 if not os.path.exists(fishPole):
1898 if os.path.exists(which('cowsay')):
1899 fishPole = which('cowsay')
1900 else:
1901 return
1902
1903
1904 fishCmd = fishPole + fishPath + " " + msg
1905 os.system(fishCmd)
1906
1909 """ return v2 if v1>v2
1910 return v1 if v1<v2
1911 return v1 if v1=v2
1912 return v1 if v2 is not in 1.2.3.4.5 format
1913 return v2 if v1 is not in 1.2.3.4.5 format
1914 """
1915
1916 for a1, a2 in zip_longest(v1, v2, fillvalue=0):
1917 try:
1918 a1= int(a1)
1919 except:
1920 return v2
1921 try:
1922 a2= int(a2)
1923 except:
1924 return v1
1925 if a1 > a2:
1926 return v2
1927 elif a1 < a2:
1928 return v1
1929 return v1
1930
1931
1932
1933 plugin_support = {}
1971
1972
1973
1974 -def set_global(loop=False, unitary=True, mp=False, cms=False):
2004 return deco_f_set
2005 return deco_set
2006
2011 """convenient way to import a plugin file/function"""
2012
2013 try:
2014 _temp = __import__('PLUGIN.%s' % module, globals(), locals(), fcts, -1)
2015 except ImportError:
2016 try:
2017 _temp = __import__('MG5aMC_PLUGIN.%s' % module, globals(), locals(), fcts, -1)
2018 except ImportError:
2019 raise MadGraph5Error(error_msg)
2020
2021 if not fcts:
2022 return _temp
2023 elif len(fcts) == 1:
2024 return getattr(_temp,fcts[0])
2025 else:
2026 return [getattr(_temp,name) for name in fcts]
2027
2028 -def from_plugin_import(plugin_path, target_type, keyname=None, warning=False,
2029 info=None):
2030 """return the class associated with keyname for a given plugin class
2031 if keyname is None, return all the name associated"""
2032
2033 validname = []
2034 for plugpath in plugin_path:
2035 plugindirname = os.path.basename(plugpath)
2036 for plug in os.listdir(plugpath):
2037 if os.path.exists(pjoin(plugpath, plug, '__init__.py')):
2038 try:
2039 with stdchannel_redirected(sys.stdout, os.devnull):
2040 __import__('%s.%s' % (plugindirname,plug))
2041 except Exception as error:
2042 if warning:
2043 logger.warning("error detected in plugin: %s.", plug)
2044 logger.warning("%s", error)
2045 continue
2046 plugin = sys.modules['%s.%s' % (plugindirname,plug)]
2047 if hasattr(plugin, target_type):
2048 if not is_plugin_supported(plugin):
2049 continue
2050 if keyname is None:
2051 validname += list(getattr(plugin, target_type).keys())
2052 else:
2053 if keyname in getattr(plugin, target_type):
2054 if not info:
2055 logger.info('Using from plugin %s mode %s' % (plug, keyname), '$MG:BOLD')
2056 else:
2057 logger.info(info % {'plug': plug, 'key':keyname}, '$MG:BOLD')
2058 return getattr(plugin, target_type)[keyname]
2059
2060 if not keyname:
2061 return validname
2062
2063
2064
2065
2066 python_lhapdf=None
2068 """load the python module of lhapdf return None if it can not be loaded"""
2069
2070
2071 global python_lhapdf
2072 if python_lhapdf:
2073 if python_lhapdf == -1:
2074 return None
2075 else:
2076 return python_lhapdf
2077
2078 use_lhapdf=False
2079 try:
2080
2081 lhapdf_libdir=subprocess.Popen([lhapdfconfig,'--libdir'],\
2082 stdout=subprocess.PIPE).stdout.read().decode().strip()
2083 except:
2084 use_lhapdf=False
2085 return False
2086 else:
2087 try:
2088 candidates=[dirname for dirname in os.listdir(lhapdf_libdir) \
2089 if os.path.isdir(os.path.join(lhapdf_libdir,dirname))]
2090 except OSError:
2091 candidates=[]
2092 for candidate in candidates:
2093 if os.path.isdir(os.path.join(lhapdf_libdir,candidate,'site-packages')):
2094 sys.path.insert(0,os.path.join(lhapdf_libdir,candidate,'site-packages'))
2095 try:
2096 import lhapdf
2097 use_lhapdf=True
2098 break
2099 except ImportError:
2100 sys.path.pop(0)
2101 continue
2102 if not use_lhapdf:
2103 try:
2104 candidates=[dirname for dirname in os.listdir(lhapdf_libdir+'64') \
2105 if os.path.isdir(os.path.join(lhapdf_libdir+'64',dirname))]
2106 except OSError:
2107 candidates=[]
2108
2109 for candidate in candidates:
2110 if os.path.isdir(os.path.join(lhapdf_libdir+'64',candidate,'site-packages')):
2111 sys.path.insert(0,os.path.join(lhapdf_libdir+'64',candidate,'site-packages'))
2112 try:
2113 import lhapdf
2114 use_lhapdf=True
2115 break
2116 except ImportError:
2117 sys.path.pop(0)
2118 continue
2119 if not use_lhapdf:
2120 try:
2121 import lhapdf
2122 use_lhapdf=True
2123 except ImportError:
2124 print('fail')
2125 logger.warning("Failed to access python version of LHAPDF: "\
2126 "If the python interface to LHAPDF is available on your system, try "\
2127 "adding its location to the PYTHONPATH environment variable and the"\
2128 "LHAPDF library location to LD_LIBRARY_PATH (linux) or DYLD_LIBRARY_PATH (mac os x)."\
2129 "The required LD_LIBRARY_PATH is "+ lhapdf_libdir
2130 )
2131
2132 if use_lhapdf:
2133 python_lhapdf = lhapdf
2134 python_lhapdf.setVerbosity(0)
2135 else:
2136 python_lhapdf = None
2137 return python_lhapdf
2138
2140 """implement newton method for solving f(x)=0, df is the derivate"""
2141 x = x0
2142 iter=0
2143 while abs(f(x)) > error:
2144 iter+=1
2145 x = x - f(x)/df(x)
2146 if iter ==maxiter:
2147 sprint('fail to solve equation')
2148 raise Exception
2149 return x
2150
2151 -def wget(http, path, *args, **opt):
2152 """a wget function for both unix and mac"""
2153
2154 if sys.platform == "darwin":
2155 return call(['curl', '-L', http, '-o%s' % path], *args, **opt)
2156 else:
2157 return call(['wget', http, '--output-document=%s'% path], *args, **opt)
2158
2160 'Convert a cmp= function into a key= function (for using python2 type of sort)'
2161
2162 class K:
2163 def __init__(self, obj, *args):
2164 self.obj = obj
2165 def __lt__(self, other):
2166 return mycmp(self.obj, other.obj) < 0
2167 def __gt__(self, other):
2168 return mycmp(self.obj, other.obj) > 0
2169 def __eq__(self, other):
2170 return mycmp(self.obj, other.obj) == 0
2171 def __le__(self, other):
2172 return mycmp(self.obj, other.obj) <= 0
2173 def __ge__(self, other):
2174 return mycmp(self.obj, other.obj) >= 0
2175 def __ne__(self, other):
2176 return mycmp(self.obj, other.obj) != 0
2177 return K
2178
2180 """return the smallest key adiff in A such that adiff not in B or A[adiff] != B[bdiff]"""
2181 diff_keys = [k for k in A if k not in B or A[k] != B[k]]
2182 return min(diff_keys)
2183
2185 if len(A) != len(B):
2186 return (len(A) > len(B)) - (len(A) < len(B))
2187 try:
2188 adiff = smallest_diff_key(A, B)
2189 except ValueError:
2190
2191 return 0
2192 bdiff = smallest_diff_key(B, A)
2193 if adiff != bdiff:
2194 a = adiff
2195 b = bdiff
2196 return (a > b) - (a < b)
2197 a = A[adiff]
2198 b = B[bdiff]
2199 if isinstance(a, dict):
2200 return dict_cmp(a,b,level=level+1)
2201 else:
2202 return (a > b) - (a < b)
2203
2204
2205 if six.PY3:
2206 import io
2207 file = io.FileIO
2210 """read a file returning the lines in reverse order for each call of readline()
2211 This actually just reads blocks (4096 bytes by default) of data from the end of
2212 the file and returns last line in an internal buffer."""
2213
2214
2216 """ readline in a backward way """
2217
2218 while len(self.data) == 1 and ((self.blkcount * self.blksize) < self.size):
2219 self.blkcount = self.blkcount + 1
2220 line = self.data[0]
2221 try:
2222 self.seek(-self.blksize * self.blkcount, 2)
2223 self.data = (self.read(self.blksize).decode() + line).split('\n')
2224 except IOError:
2225 self.seek(0)
2226 data = self.read(self.size - (self.blksize * (self.blkcount-1))).decode() + line
2227 self.data = data.split('\n')
2228
2229 if len(self.data) == 0:
2230 return ""
2231
2232 line = self.data.pop()
2233 return line + '\n'
2234
2235 - def __init__(self, filepos, blksize=4096):
2236 """initialize the internal structures"""
2237
2238
2239 self.size = os.stat(filepos)[6]
2240
2241 self.blksize = blksize
2242
2243 self.blkcount = 1
2244 file.__init__(self, filepos, 'rb')
2245
2246
2247 if self.size > self.blksize:
2248 self.seek(-self.blksize * self.blkcount, 2)
2249 self.data = self.read(self.blksize).decode().split('\n')
2250
2251
2252 if not self.data[-1]:
2253 self.data.pop()
2254
2256 line = self.readline()
2257 if line:
2258 return line
2259 else:
2260 raise StopIteration
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285