1
2
3
4
5
6
7
8
9
10
11
12
13
14
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 try:
738 oldstdchannel = os.dup(stdchannel.fileno())
739 dest_file = open(dest_filename, 'w')
740 os.dup2(dest_file.fileno(), stdchannel.fileno())
741 yield
742 finally:
743 if oldstdchannel is not None:
744 os.dup2(oldstdchannel, stdchannel.fileno())
745 os.close(oldstdchannel)
746 if dest_file is not None:
747 dest_file.close()
748
750 '''
751 return the number of open file descriptors for current process
752
753 .. warning: will only work on UNIX-like os-es.
754 '''
755 import subprocess
756 import os
757
758 pid = os.getpid()
759 procs = subprocess.check_output(
760 [ "lsof", '-w', '-Ff', "-p", str( pid ) ] )
761 nprocs = [s for s in procs.split( '\n' ) if s and s[ 0 ] == 'f' and s[1: ].isdigit()]
762
763 return nprocs
764
766 """ Detects whether the specified C++ compiler is clang."""
767
768 try:
769 p = Popen([cpp_compiler, '--version'], stdout=subprocess.PIPE,
770 stderr=subprocess.PIPE)
771 output, error = p.communicate()
772 except Exception as error:
773
774 return False
775
776 output = output.decode()
777 return 'LLVM' in str(output) or "clang" in str(output)
778
781 """ Detects if the specified c++ compiler will normally link against the C++
782 standard library -lc++ or -libstdc++."""
783
784 is_clang = detect_if_cpp_compiler_is_clang(cpp_compiler)
785 if is_clang:
786 try:
787 import platform
788 v, _,_ = platform.mac_ver()
789 if not v:
790
791
792 return '-lc++'
793 else:
794 v = float(v.rsplit('.')[1])
795 if v >= 9:
796 return '-lc++'
797 else:
798 return '-lstdc++'
799 except:
800 return '-lstdc++'
801 return '-lstdc++'
802
804 """find the current compiler for the current directory"""
805
806
807
808 if compiler_type == 'fortran':
809 comp = re.compile("^\s*FC\s*=\s*([\w\/\\.\-]+)\s*")
810 elif compiler_type == 'cpp':
811 comp = re.compile("^\s*CXX\s*=\s*([\w\/\\.\-]+)\s*")
812 else:
813 MadGraph5Error, 'Unknown compiler type: %s' % compiler_type
814
815 for line in open(path):
816 if comp.search(line):
817 compiler = comp.search(line).groups()[0]
818 return compiler
819 elif compiler_type == 'fortran' and line.startswith('DEFAULT_F_COMPILER'):
820 return line.split('=')[1].strip()
821 elif compiler_type == 'cpp' and line.startswith('DEFAULT_CPP_COMPILER'):
822 return line.split('=')[1].strip()
823
825 """ return a list of all file starting with makefile in the given directory"""
826
827 out=[]
828
829 if type(directory)==list:
830 for name in directory:
831 out+=find_makefile_in_dir(name)
832 return out
833
834
835 for name in os.listdir(directory):
836 if os.path.isdir(directory+'/'+name):
837 out+=find_makefile_in_dir(directory+'/'+name)
838 elif os.path.isfile(directory+'/'+name) and name.lower().startswith('makefile'):
839 out.append(directory+'/'+name)
840 elif os.path.isfile(directory+'/'+name) and name.lower().startswith('make_opt'):
841 out.append(directory+'/'+name)
842 return out
843
845
846
847 os.path.walk('.', rm_file_extension, '.o')
848
849
850 libraries = ['libblocks.a', 'libgeneric_mw.a', 'libMWPS.a', 'libtools.a', 'libdhelas3.a',
851 'libdsample.a', 'libgeneric.a', 'libmodel.a', 'libpdf.a', 'libdhelas3.so', 'libTF.a',
852 'libdsample.so', 'libgeneric.so', 'libmodel.so', 'libpdf.so']
853 lib_pos='./lib'
854 [os.remove(os.path.join(lib_pos, lib)) for lib in libraries \
855 if os.path.exists(os.path.join(lib_pos, lib))]
856
870
874
878 replace_dict = dict(key_values)
879 replacement_function = lambda match: replace_dict[match.group(0)]
880 pattern = re.compile("|".join([re.escape(k) for k, v in key_values]), re.M)
881 return lambda string: pattern.sub(replacement_function, string)
882
885
888 def deco_check(f):
889 def deco_f(arg, *args, **opt):
890 try:
891 return f(arg, *args, **opt)
892 except OSError as error:
893 logger.debug('try to recover from %s' % error)
894 if isinstance(arg, (list,tuple)):
895 prog = arg[0]
896 else:
897 prog = arg
898
899
900 if error.errno == 13:
901 if os.path.exists(prog):
902 os.system('chmod +x %s' % prog)
903 elif 'cwd' in opt and opt['cwd'] and \
904 os.path.isfile(pjoin(opt['cwd'],arg[0])):
905 os.system('chmod +x %s' % pjoin(opt['cwd'],arg[0]))
906 return f(arg, *args, **opt)
907
908 elif error.errno == 2:
909
910 raise Exception('%s fails with no such file or directory' \
911 % arg)
912 else:
913 raise
914 return deco_f
915 return deco_check
916
917
918 @check_system_error()
919 -def call(arg, *args, **opt):
920 """nice way to call an external program with nice error treatment"""
921 try:
922 return subprocess.call(arg, *args, **opt)
923 except OSError:
924 arg[0] = './%s' % arg[0]
925 return subprocess.call(arg, *args, **opt)
926
927 @check_system_error()
928 -def Popen(arg, *args, **opt):
929 """nice way to call an external program with nice error treatment"""
930 return subprocess.Popen(arg, *args, **opt)
931
932 @check_system_error()
933 -def call_stdout(arg, *args, **opt):
934 """nice way to call an external program with nice error treatment"""
935 try:
936 out = subprocess.Popen(arg, *args, stdout=subprocess.PIPE, **opt)
937 except OSError:
938 arg[0] = './%s' % arg[0]
939 out = subprocess.call(arg, *args, stdout=subprocess.PIPE, **opt)
940
941 str_out = out.stdout.read().decode().strip()
942 return str_out
943
944
945
946 -def copytree(src, dst, symlinks = False, ignore = None):
947 if not os.path.exists(dst):
948 os.makedirs(dst)
949 shutil.copystat(src, dst)
950 lst = os.listdir(src)
951 if ignore:
952 excl = ignore(src, lst)
953 lst = [x for x in lst if x not in excl]
954 for item in lst:
955 s = os.path.join(src, item)
956 d = os.path.join(dst, item)
957 if symlinks and os.path.islink(s):
958 if os.path.lexists(d):
959 os.remove(d)
960 os.symlink(os.readlink(s), d)
961 try:
962 st = os.lstat(s)
963 mode = stat.S_IMODE(st.st_mode)
964 os.lchmod(d, mode)
965 except:
966 pass
967 elif os.path.isdir(s):
968 copytree(s, d, symlinks, ignore)
969 else:
970 shutil.copy2(s, d)
971
972
973
974 @multiple_try()
975 -def mult_try_open(filepath, *args, **opt):
976 """try to open a file with multiple try to ensure that filesystem is sync"""
977 return open(filepath, *args, ** opt)
978
979
980
981
982 -def tail(f, n, offset=None):
983 """Reads a n lines from f with an offset of offset lines. The return
984 value is a tuple in the form ``lines``.
985 """
986 avg_line_length = 74
987 to_read = n + (offset or 0)
988
989 while 1:
990 try:
991 f.seek(-(avg_line_length * to_read), 2)
992 except IOError:
993
994
995 f.seek(0)
996 pos = f.tell()
997 lines = f.read().splitlines()
998 if len(lines) >= to_read or pos == 0:
999 return lines[-to_read:offset and -offset or None]
1000 avg_line_length *= 1.3
1001 avg_line_length = int(avg_line_length)
1002
1004 """ makes a piping fifo (First-in First-out) file and nicely intercepts
1005 error in case the file format of the target drive doesn't suppor tit."""
1006
1007 try:
1008 os.mkfifo(fifo_path)
1009 except:
1010 raise OSError('MadGraph5_aMCatNLO could not create a fifo file at:\n'+
1011 ' %s\n'%fifo_path+'Make sure that this file does not exist already'+
1012 ' and that the file format of the target drive supports fifo file (i.e not NFS).')
1013
1018 """return the last line of a file"""
1019
1020 return tail(fsock, 1)[0]
1021
1025 """A generator that returns the lines of a file in reverse order"""
1026 with open(filename) as fh:
1027 segment = None
1028 offset = 0
1029 fh.seek(0, os.SEEK_END)
1030 file_size = remaining_size = fh.tell()
1031 while remaining_size > 0:
1032 offset = min(file_size, offset + buf_size)
1033 fh.seek(file_size - offset)
1034 buffer = fh.read(min(remaining_size, buf_size))
1035 remaining_size -= buf_size
1036 lines = buffer.split('\n')
1037
1038
1039
1040 if segment is not None:
1041
1042
1043
1044 if buffer[-1] != '\n':
1045 lines[-1] += segment
1046 else:
1047 yield segment
1048 segment = lines[0]
1049 for index in range(len(lines) - 1, 0, -1):
1050 if lines[index]:
1051 yield lines[index]
1052
1053 if segment is not None:
1054 yield segment
1055
1073
1087
1093 """create a temporary directory and ensure this one to be cleaned.
1094 """
1095
1096 - def __init__(self, suffix='', prefix='tmp', dir=None):
1097 self.nb_try_remove = 0
1098 import tempfile
1099 self.path = tempfile.mkdtemp(suffix, prefix, dir)
1100
1101
1102 - def __exit__(self, ctype, value, traceback ):
1103
1104 if False and isinstance(value, Exception):
1105 sprint("Directory %s not cleaned. This directory can be removed manually" % self.path)
1106 return False
1107 try:
1108 shutil.rmtree(self.path)
1109 except OSError:
1110 self.nb_try_remove += 1
1111 if self.nb_try_remove < 3:
1112 time.sleep(10)
1113 self.__exit__(ctype, value, traceback)
1114 else:
1115 logger.warning("Directory %s not completely cleaned. This directory can be removed manually" % self.path)
1116
1119
1121 """replace an attribute of a class with another value for the time of the
1122 context manager
1123 """
1124
1125 - def __init__(self, cls, attribute, value):
1126
1127 self.cls = cls
1128 self.attribute = attribute
1129 if isinstance(attribute, list):
1130 self.old_value = []
1131 for key, onevalue in zip(attribute, value):
1132 self.old_value.append(getattr(cls, key))
1133 setattr(self.cls, key, onevalue)
1134 else:
1135 self.old_value = getattr(cls, attribute)
1136 setattr(self.cls, self.attribute, value)
1137
1138 - def __exit__(self, ctype, value, traceback ):
1139
1140 if isinstance(self.attribute, list):
1141 for key, old_value in zip(self.attribute, self.old_value):
1142 setattr(self.cls, key, old_value)
1143 else:
1144 setattr(self.cls, self.attribute, self.old_value)
1145
1147 return self.old_value
1148
1149
1151 def wrapper(*args, **kwds):
1152 with self:
1153 return func(*args, **kwds)
1154
1155
1156
1157
1158 -def gunzip(path, keep=False, stdout=None):
1159 """ a standard replacement for os.system('gunzip -f %s.gz ' % event_path)"""
1160
1161
1162 if not path.endswith(".gz"):
1163 if os.path.exists("%s.gz" % path):
1164 path = "%s.gz" % path
1165 else:
1166 raise Exception("%(path)s does not finish by .gz and the file %(path)s.gz does not exists" %\
1167 {"path": path})
1168
1169
1170
1171 if os.path.getsize(path) > 1e8:
1172 if stdout:
1173 os.system('gunzip -c %s > %s' % (path, stdout))
1174 else:
1175 os.system('gunzip %s' % path)
1176 return 0
1177
1178 if not stdout:
1179 stdout = path[:-3]
1180 try:
1181 gfile = ziplib.open(path, "r")
1182 except IOError:
1183 raise
1184 else:
1185 try:
1186 open(stdout,'w').write(gfile.read().decode())
1187 except IOError as error:
1188 sprint(error)
1189
1190 if stdout == path:
1191 return
1192 else:
1193 files.cp(path, stdout)
1194 finally:
1195 gfile.close()
1196 if not keep:
1197 os.remove(path)
1198 return 0
1199
1200 -def gzip(path, stdout=None, error=True, forceexternal=False):
1201 """ a standard replacement for os.system('gzip %s ' % path)"""
1202
1203
1204 if os.path.getsize(path) > 1e9 or forceexternal:
1205 call(['gzip', '-f', path])
1206 if stdout:
1207 if not stdout.endswith(".gz"):
1208 stdout = "%s.gz" % stdout
1209 shutil.move('%s.gz' % path, stdout)
1210 return
1211
1212 if not stdout:
1213 stdout = "%s.gz" % path
1214 elif not stdout.endswith(".gz"):
1215 stdout = "%s.gz" % stdout
1216
1217 try:
1218 ziplib.open(stdout,"w").write(open(path).read().encode())
1219 except OverflowError:
1220 gzip(path, stdout, error=error, forceexternal=True)
1221 except Exception:
1222 if error:
1223 raise
1224 else:
1225 return
1226 finally:
1227 os.remove(path)
1228
1233 """ a convinient class to open a file """
1234
1235 web_browser = None
1236 eps_viewer = None
1237 text_editor = None
1238 configured = False
1239
1241 """open a file"""
1242
1243
1244 if not self.configured:
1245 self.configure()
1246
1247 try:
1248 extension = filename.rsplit('.',1)[1]
1249 except IndexError:
1250 extension = ''
1251
1252
1253
1254 if extension in ['html','htm','php']:
1255 self.open_program(self.web_browser, filename, background=True)
1256 elif extension in ['ps','eps']:
1257 self.open_program(self.eps_viewer, filename, background=True)
1258 else:
1259 self.open_program(self.text_editor,filename, mac_check=False)
1260
1261
1262 @classmethod
1285
1286 @classmethod
1324
1325
1326 @staticmethod
1328 """find a valid shell program in the list"""
1329
1330 for p in possibility:
1331 if which(p):
1332 logger.info('Using default %s \"%s\". ' % (program, p) + \
1333 'Set another one in ./input/mg5_configuration.txt')
1334 return p
1335
1336 logger.info('No valid %s found. ' % program + \
1337 'Please set in ./input/mg5_configuration.txt')
1338 return None
1339
1340
1341 - def open_program(self, program, file_path, mac_check=True, background=False):
1342 """ open a file with a given program """
1343
1344 if mac_check==True and sys.platform == 'darwin':
1345 return self.open_mac_program(program, file_path)
1346
1347
1348 if program:
1349 arguments = program.split()
1350 arguments.append(file_path)
1351
1352 if not background:
1353 subprocess.call(arguments)
1354 else:
1355 import six.moves._thread
1356 six.moves._thread.start_new_thread(subprocess.call,(arguments,))
1357 else:
1358 logger.warning('Not able to open file %s since no program configured.' % file_path + \
1359 'Please set one in ./input/mg5_configuration.txt')
1360
1362 """ open a text with the text editor """
1363
1364 if not program:
1365
1366 os.system('open %s' % file_path)
1367 elif which(program):
1368
1369 arguments = program.split()
1370 arguments.append(file_path)
1371 subprocess.call(arguments)
1372 else:
1373
1374 os.system('open -a %s %s' % (program, file_path))
1375
1395
1397 """ Try and guess what shell type does the user use."""
1398 try:
1399 if os.environ['SHELL'].endswith('bash'):
1400 return 'bash'
1401 elif os.environ['SHELL'].endswith('tcsh'):
1402 return 'tcsh'
1403 else:
1404
1405 return None
1406 except KeyError:
1407 return None
1408
1410 """ check if a path is executable"""
1411 try:
1412 return os.access(path, os.X_OK)
1413 except Exception:
1414 return False
1415
1417 """Option Peaser which raise an error instead as calling exit"""
1418
1419 - def exit(self, status=0, msg=None):
1424
1426 """Returns the current line number in our program."""
1427
1428 if not __debug__:
1429 return
1430
1431
1432 import inspect
1433 if 'cond' in opt and not opt['cond']:
1434 return
1435
1436 use_print = False
1437 if 'use_print' in opt and opt['use_print']:
1438 use_print = True
1439
1440 if 'log' in opt:
1441 log = opt['log']
1442 else:
1443 log = logging.getLogger('madgraph')
1444 if 'level' in opt:
1445 level = opt['level']
1446 else:
1447 level = logging.getLogger('madgraph').level
1448 if level == 0:
1449 use_print = True
1450
1451
1452
1453
1454 if 'wait' in opt:
1455 wait = bool(opt['wait'])
1456 else:
1457 wait = False
1458
1459 lineno = inspect.currentframe().f_back.f_lineno
1460 fargs = inspect.getframeinfo(inspect.currentframe().f_back)
1461 filename, lineno = fargs[:2]
1462
1463
1464 try:
1465 source = inspect.getsourcelines(inspect.currentframe().f_back)
1466 line = source[0][lineno-source[1]]
1467 line = re.findall(r"misc\.sprint\(\s*(.*)\)\s*($|#)", line)[0][0]
1468 if line.startswith("'") and line.endswith("'") and line.count(",") ==0:
1469 line= ''
1470 elif line.startswith("\"") and line.endswith("\"") and line.count(",") ==0:
1471 line= ''
1472 elif line.startswith(("\"","'")) and len(args)==1 and "%" in line:
1473 line= ''
1474 except Exception:
1475 line=''
1476
1477 if line:
1478 intro = ' %s = \033[0m' % line
1479 else:
1480 intro = ''
1481
1482
1483 if not use_print:
1484 log.log(level, ' '.join([intro]+[str(a) for a in args]) + \
1485 ' \033[1;30m[%s at line %s]\033[0m' % (os.path.basename(filename), lineno))
1486 else:
1487 print(' '.join([intro]+[str(a) for a in args]) + \
1488 ' \033[1;30m[%s at line %s]\033[0m' % (os.path.basename(filename), lineno))
1489
1490 if wait:
1491 input('press_enter to continue')
1492 elif 'sleep' in opt:
1493 time.sleep(int(opt['sleep']))
1494
1495 return
1496
1497
1498
1499
1500 -def equal(a,b,sig_fig=6, zero_limit=True):
1501 """function to check if two float are approximatively equal"""
1502 import math
1503
1504 if isinstance(sig_fig, int):
1505 if not a or not b:
1506 if zero_limit:
1507 if zero_limit is not True:
1508 power = zero_limit
1509 else:
1510 power = sig_fig + 1
1511 else:
1512 return a == b
1513 else:
1514 power = sig_fig - int(math.log10(abs(a)))
1515
1516 return ( a==b or abs(int(a*10**power) - int(b*10**power)) < 10)
1517 else:
1518 return abs(a-b) < sig_fig
1519
1520
1521
1522
1523
1524
1525
1526 -class chdir:
1528 self.newPath = newPath
1529
1531 self.savedPath = os.getcwd()
1532 os.chdir(self.newPath)
1533
1534 - def __exit__(self, etype, value, traceback):
1535 os.chdir(self.savedPath)
1536
1537
1538
1539
1540
1541 -def timeout(func, args=(), kwargs={}, timeout_duration=1, default=None):
1542 '''This function will spwan a thread and run the given function using the args, kwargs and
1543 return the given default value if the timeout_duration is exceeded
1544 '''
1545 import threading
1546 class InterruptableThread(threading.Thread):
1547 def __init__(self):
1548 threading.Thread.__init__(self)
1549 self.result = default
1550 def run(self):
1551 try:
1552 self.result = func(*args, **kwargs)
1553 except Exception as error:
1554 print(error)
1555 self.result = default
1556 it = InterruptableThread()
1557 it.start()
1558 it.join(timeout_duration)
1559 return it.result
1560
1561 -def mmin(iter, default=None):
1567
1568
1569
1570
1571
1572 -class digest:
1573
1575 try:
1576 return self.test_hashlib()
1577 except Exception:
1578 pass
1579 try:
1580 return self.test_md5()
1581 except Exception:
1582 pass
1583 try:
1584 return self.test_zlib()
1585 except Exception:
1586 pass
1587
1589 import hashlib
1590 def digest(text):
1591 """using mg5 for the hash"""
1592 t = hashlib.md5()
1593 t.update(text)
1594 return t.hexdigest()
1595 return digest
1596
1598 import md5
1599 def digest(text):
1600 """using mg5 for the hash"""
1601 t = md5.md5()
1602 t.update(text)
1603 return t.hexdigest()
1604 return digest
1605
1607 import zlib
1608 def digest(text):
1609 return zlib.adler32(text)
1610
1611 digest = digest().test_all()
1618 self.cmd_args = args
1619 self.cmd_opts = opts
1620 self.execution_state = False
1621
1623 self.max_vms_memory = 0
1624 self.max_rss_memory = 0
1625
1626 self.t1 = None
1627 self.t0 = time.time()
1628 self.p = subprocess.Popen(*self.cmd_args,**self.cmd_opts)
1629 self.execution_state = True
1630
1632 if not self.check_execution_state():
1633 return False
1634
1635 self.t1 = time.time()
1636
1637
1638
1639 flash = subprocess.Popen("ps -p %i -o rss"%self.p.pid,
1640 shell=True,stdout=subprocess.PIPE,stderr=open(os.devnull,"w"))
1641 stdout_list = flash.communicate()[0].decode().split('\n')
1642 rss_memory = int(stdout_list[1])
1643
1644 vms_memory = 0
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673 self.max_vms_memory = max(self.max_vms_memory,vms_memory)
1674 self.max_rss_memory = max(self.max_rss_memory,rss_memory)
1675
1676 return self.check_execution_state()
1677
1679
1680
1681 return self.p.poll() == None
1682
1684 if not self.execution_state:
1685 return False
1686 if self.is_running():
1687 return True
1688 self.executation_state = False
1689 self.t1 = time.time()
1690 return False
1691
1692 - def close(self,kill=False):
1693
1694 if self.p.poll() == None:
1695 if kill:
1696 self.p.kill()
1697 else:
1698 self.p.terminate()
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711 -class Applenotification(object):
1712
1714 self.init = False
1715 self.working = True
1716
1718 try:
1719 import Foundation
1720 import objc
1721 self.NSUserNotification = objc.lookUpClass('NSUserNotification')
1722 self.NSUserNotificationCenter = objc.lookUpClass('NSUserNotificationCenter')
1723 except:
1724 self.working=False
1725 self.working=True
1726
1727 - def __call__(self,subtitle, info_text, userInfo={}):
1728
1729 if not self.init:
1730 self.load_notification()
1731 if not self.working:
1732 return
1733 try:
1734 notification = self.NSUserNotification.alloc().init()
1735 notification.setTitle_('MadGraph5_aMC@NLO')
1736 notification.setSubtitle_(subtitle)
1737 notification.setInformativeText_(info_text)
1738 try:
1739 notification.setUserInfo_(userInfo)
1740 except:
1741 pass
1742 self.NSUserNotificationCenter.defaultUserNotificationCenter().scheduleNotification_(notification)
1743 except:
1744 pass
1745
1746
1747
1748 apple_notify = Applenotification()
1751
1752 done_notification = False
1753 message_aprilfirst =\
1754 {'error': ['Be careful, a cat is eating a lot of fish today. This makes the code unstable.',
1755 'Really, this sounds fishy.',
1756 '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?"',
1757 "Why does Heisenberg detest driving cars? Because, every time he looks at the speedometer he gets lost!",
1758 "May the mass times acceleration be with you.",
1759 "NOTE: This product may actually be nine-dimensional. If this is the case, functionality is not affected by the extra five dimensions.",
1760 "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.",
1761 "",
1762 'The fish are out of jokes. See you next year for more!'],
1763
1764
1765 }
1766
1767 default_banner_1 = "************************************************************\n" + \
1768 "* *\n" + \
1769 "* W E L C O M E to *\n" + \
1770 "* M A D G R A P H 5 _ a M C @ N L O *\n" + \
1771 "* *\n" + \
1772 "* *\n"
1773
1774
1775 default_banner_2 = "* *\n" + \
1776 "%s" + \
1777 "* *\n" + \
1778 "* The MadGraph5_aMC@NLO Development Team - Find us at *\n" + \
1779 "* https://server06.fynu.ucl.ac.be/projects/madgraph *\n" + \
1780 "* and *\n" + \
1781 "* http://amcatnlo.web.cern.ch/amcatnlo/ *\n" + \
1782 "* *\n" + \
1783 "* Type 'help' for in-line help. *\n" + \
1784 "* Type 'tutorial' to learn how MG5 works *\n" + \
1785 "* Type 'tutorial aMCatNLO' to learn how aMC@NLO works *\n" + \
1786 "* Type 'tutorial MadLoop' to learn how MadLoop works *\n" + \
1787 "* *\n" + \
1788 "************************************************************"
1789
1790 May4_banner = "* _____ *\n" + \
1791 "* ,-~\" \"~-. *\n" + \
1792 "* * ,^ ___ ^. * *\n" + \
1793 "* * / .^ ^. \ * *\n" + \
1794 "* * Y l o ! Y * *\n" + \
1795 "* * l_ `.___.' _,[ * *\n" + \
1796 "* * |^~\"--------------~\"\"^| * *\n" + \
1797 "* * ! May the 4th ! * *\n" + \
1798 "* * \ / * *\n" + \
1799 "* * ^. .^ * *\n" + \
1800 "* * \"-.._____.,-\" * *\n"
1801
1802 special_banner = {(4,5): May4_banner}
1803
1804
1843
1845 try:
1846 self.call_apple(msg)
1847 except:
1848 pass
1849
1855
1856
1858
1859
1860 p = subprocess.Popen("osascript -e 'get volume settings'", stdout=subprocess.PIPE, shell=True)
1861 output, _ = p.communicate()
1862 output = output.decode()
1863
1864 info = dict([[a.strip() for a in l.split(':',1)] for l in output.strip().split(',')])
1865 muted = False
1866 if 'output muted' in info and info['output muted'] == 'true':
1867 muted = True
1868 elif 'output volume' in info and info['output volume'] == '0':
1869 muted = True
1870
1871 if muted:
1872 if not EasterEgg.done_notification:
1873 apple_notify('On April first','turn up your volume!')
1874 EasterEgg.done_notification = True
1875 else:
1876 os.system('say %s' % msg)
1877
1878
1880
1881 fishPath = madgraph.MG5DIR+"/input/.cowgraph.cow"
1882 if os.path.exists(fishPath):
1883 fishPath = " -f " + fishPath
1884
1885
1886
1887 fishPole = which('cowthink')
1888 if not os.path.exists(fishPole):
1889 if os.path.exists(which('cowsay')):
1890 fishPole = which('cowsay')
1891 else:
1892 return
1893
1894
1895 fishCmd = fishPole + fishPath + " " + msg
1896 os.system(fishCmd)
1897
1900 """ return v2 if v1>v2
1901 return v1 if v1<v2
1902 return v1 if v1=v2
1903 return v1 if v2 is not in 1.2.3.4.5 format
1904 return v2 if v1 is not in 1.2.3.4.5 format
1905 """
1906
1907 for a1, a2 in zip_longest(v1, v2, fillvalue=0):
1908 try:
1909 a1= int(a1)
1910 except:
1911 return v2
1912 try:
1913 a2= int(a2)
1914 except:
1915 return v1
1916 if a1 > a2:
1917 return v2
1918 elif a1 < a2:
1919 return v1
1920 return v1
1921
1922
1923
1924 plugin_support = {}
1962
1963
1964
1965 -def set_global(loop=False, unitary=True, mp=False, cms=False):
1995 return deco_f_set
1996 return deco_set
1997
2002 """convenient way to import a plugin file/function"""
2003
2004 try:
2005 _temp = __import__('PLUGIN.%s' % module, globals(), locals(), fcts, -1)
2006 except ImportError:
2007 try:
2008 _temp = __import__('MG5aMC_PLUGIN.%s' % module, globals(), locals(), fcts, -1)
2009 except ImportError:
2010 raise MadGraph5Error(error_msg)
2011
2012 if not fcts:
2013 return _temp
2014 elif len(fcts) == 1:
2015 return getattr(_temp,fcts[0])
2016 else:
2017 return [getattr(_temp,name) for name in fcts]
2018
2019 -def from_plugin_import(plugin_path, target_type, keyname=None, warning=False,
2020 info=None):
2021 """return the class associated with keyname for a given plugin class
2022 if keyname is None, return all the name associated"""
2023
2024 validname = []
2025 for plugpath in plugin_path:
2026 plugindirname = os.path.basename(plugpath)
2027 for plug in os.listdir(plugpath):
2028 if os.path.exists(pjoin(plugpath, plug, '__init__.py')):
2029 try:
2030 with stdchannel_redirected(sys.stdout, os.devnull):
2031 __import__('%s.%s' % (plugindirname,plug))
2032 except Exception as error:
2033 if warning:
2034 logger.warning("error detected in plugin: %s.", plug)
2035 logger.warning("%s", error)
2036 continue
2037 plugin = sys.modules['%s.%s' % (plugindirname,plug)]
2038 if hasattr(plugin, target_type):
2039 if not is_plugin_supported(plugin):
2040 continue
2041 if keyname is None:
2042 validname += list(getattr(plugin, target_type).keys())
2043 else:
2044 if keyname in getattr(plugin, target_type):
2045 if not info:
2046 logger.info('Using from plugin %s mode %s' % (plug, keyname), '$MG:BOLD')
2047 else:
2048 logger.info(info % {'plug': plug, 'key':keyname}, '$MG:BOLD')
2049 return getattr(plugin, target_type)[keyname]
2050
2051 if not keyname:
2052 return validname
2053
2054
2055
2056
2057 python_lhapdf=None
2059 """load the python module of lhapdf return None if it can not be loaded"""
2060
2061
2062 global python_lhapdf
2063 if python_lhapdf:
2064 if python_lhapdf == -1:
2065 return None
2066 else:
2067 return python_lhapdf
2068
2069 use_lhapdf=False
2070 try:
2071
2072 lhapdf_libdir=subprocess.Popen([lhapdfconfig,'--libdir'],\
2073 stdout=subprocess.PIPE).stdout.read().decode().strip()
2074 except:
2075 use_lhapdf=False
2076 return False
2077 else:
2078 try:
2079 candidates=[dirname for dirname in os.listdir(lhapdf_libdir) \
2080 if os.path.isdir(os.path.join(lhapdf_libdir,dirname))]
2081 except OSError:
2082 candidates=[]
2083 for candidate in candidates:
2084 if os.path.isdir(os.path.join(lhapdf_libdir,candidate,'site-packages')):
2085 sys.path.insert(0,os.path.join(lhapdf_libdir,candidate,'site-packages'))
2086 try:
2087 import lhapdf
2088 use_lhapdf=True
2089 break
2090 except ImportError:
2091 sys.path.pop(0)
2092 continue
2093 if not use_lhapdf:
2094 try:
2095 candidates=[dirname for dirname in os.listdir(lhapdf_libdir+'64') \
2096 if os.path.isdir(os.path.join(lhapdf_libdir+'64',dirname))]
2097 except OSError:
2098 candidates=[]
2099 sprint(candidates, lhapdf_libdir+'64')
2100 for candidate in candidates:
2101 if os.path.isdir(os.path.join(lhapdf_libdir+'64',candidate,'site-packages')):
2102 sys.path.insert(0,os.path.join(lhapdf_libdir+'64',candidate,'site-packages'))
2103 try:
2104 import lhapdf
2105 use_lhapdf=True
2106 break
2107 except ImportError:
2108 sys.path.pop(0)
2109 continue
2110 if not use_lhapdf:
2111 try:
2112 import lhapdf
2113 use_lhapdf=True
2114 except ImportError:
2115 print('fail')
2116 logger.warning("Failed to access python version of LHAPDF: "\
2117 "If the python interface to LHAPDF is available on your system, try "\
2118 "adding its location to the PYTHONPATH environment variable and the"\
2119 "LHAPDF library location to LD_LIBRARY_PATH (linux) or DYLD_LIBRARY_PATH (mac os x)."\
2120 "The required LD_LIBRARY_PATH is "+ lhapdf_libdir
2121 )
2122
2123 if use_lhapdf:
2124 python_lhapdf = lhapdf
2125 python_lhapdf.setVerbosity(0)
2126 else:
2127 python_lhapdf = None
2128 return python_lhapdf
2129
2131 """implement newton method for solving f(x)=0, df is the derivate"""
2132 x = x0
2133 iter=0
2134 while abs(f(x)) > error:
2135 iter+=1
2136 x = x - f(x)/df(x)
2137 if iter ==maxiter:
2138 sprint('fail to solve equation')
2139 raise Exception
2140 return x
2141
2142 -def wget(http, path, *args, **opt):
2143 """a wget function for both unix and mac"""
2144
2145 if sys.platform == "darwin":
2146 return call(['curl', '-L', http, '-o%s' % path], *args, **opt)
2147 else:
2148 return call(['wget', http, '--output-document=%s'% path], *args, **opt)
2149
2151 'Convert a cmp= function into a key= function (for using python2 type of sort)'
2152
2153 class K:
2154 def __init__(self, obj, *args):
2155 self.obj = obj
2156 def __lt__(self, other):
2157 return mycmp(self.obj, other.obj) < 0
2158 def __gt__(self, other):
2159 return mycmp(self.obj, other.obj) > 0
2160 def __eq__(self, other):
2161 return mycmp(self.obj, other.obj) == 0
2162 def __le__(self, other):
2163 return mycmp(self.obj, other.obj) <= 0
2164 def __ge__(self, other):
2165 return mycmp(self.obj, other.obj) >= 0
2166 def __ne__(self, other):
2167 return mycmp(self.obj, other.obj) != 0
2168 return K
2169
2171 """return the smallest key adiff in A such that adiff not in B or A[adiff] != B[bdiff]"""
2172 diff_keys = [k for k in A if k not in B or A[k] != B[k]]
2173 return min(diff_keys)
2174
2176 if len(A) != len(B):
2177 return (len(A) > len(B)) - (len(A) < len(B))
2178 try:
2179 adiff = smallest_diff_key(A, B)
2180 except ValueError:
2181
2182 return 0
2183 bdiff = smallest_diff_key(B, A)
2184 if adiff != bdiff:
2185 a = adiff
2186 b = bdiff
2187 return (a > b) - (a < b)
2188 a = A[adiff]
2189 b = B[bdiff]
2190 if isinstance(a, dict):
2191 return dict_cmp(a,b,level=level+1)
2192 else:
2193 return (a > b) - (a < b)
2194
2195
2196 if six.PY3:
2197 import io
2198 file = io.FileIO
2201 """read a file returning the lines in reverse order for each call of readline()
2202 This actually just reads blocks (4096 bytes by default) of data from the end of
2203 the file and returns last line in an internal buffer."""
2204
2205
2207 """ readline in a backward way """
2208
2209 while len(self.data) == 1 and ((self.blkcount * self.blksize) < self.size):
2210 self.blkcount = self.blkcount + 1
2211 line = self.data[0]
2212 try:
2213 self.seek(-self.blksize * self.blkcount, 2)
2214 self.data = (self.read(self.blksize).decode() + line).split('\n')
2215 except IOError:
2216 self.seek(0)
2217 data = self.read(self.size - (self.blksize * (self.blkcount-1))).decode() + line
2218 self.data = data.split('\n')
2219
2220 if len(self.data) == 0:
2221 return ""
2222
2223 line = self.data.pop()
2224 return line + '\n'
2225
2226 - def __init__(self, filepos, blksize=4096):
2227 """initialize the internal structures"""
2228
2229
2230 self.size = os.stat(filepos)[6]
2231
2232 self.blksize = blksize
2233
2234 self.blkcount = 1
2235 file.__init__(self, filepos, 'rb')
2236
2237
2238 if self.size > self.blksize:
2239 self.seek(-self.blksize * self.blkcount, 2)
2240 self.data = self.read(self.blksize).decode().split('\n')
2241
2242
2243 if not self.data[-1]:
2244 self.data.pop()
2245
2247 line = self.readline()
2248 if line:
2249 return line
2250 else:
2251 raise StopIteration
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276