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#-*- coding: utf-8 -*-
#pylint: disable-msg=W0122,R0914
"""
File : utils.py
Author : Valentin Kuznetsov <vkuznet@gmail.com>
Description: Utilities module
"""
# system modules
from builtins import range
import os
import re
import sys
import pwd
import pprint
import subprocess
# template tag pattern
TAG = re.compile(r'[a-zA-Z0-9]')
def template_directory():
"Return location of template directory"
mkTemplates = "src/FWCore/Skeletons/mkTemplates"
# Check developer area first
if "CMSSW_BASE" in os.environ:
ret = os.path.join(os.environ["CMSSW_BASE"], mkTemplates)
if os.path.exists(ret):
return ret
# Then release area
ret = os.path.join(os.environ["CMSSW_RELEASE_BASE"], mkTemplates)
if not os.path.exists(ret):
raise Exception("Did not find 'FWCore/Skeletons/mkTemplates' directory in the developer area nor in the release area")
return ret
def parse_word(word):
"Parse word which contas double underscore tag"
output = set()
words = word.split()
for idx in range(0, len(words)):
pat = words[idx]
if pat and len(pat) > 4 and pat[:2] == '__': # we found enclosure
tag = pat[2:pat.rfind('__')]
if tag.find('__') != -1: # another pattern
for item in tag.split('__'):
if TAG.match(item):
output.add('__%s__' % item)
else:
output.add('__%s__' % tag)
return output
def test_env(tdir, tmpl):
"""
Test user environment, look-up if user has run cmsenv, otherwise
provide meaningful error message back to the user.
"""
if not tdir or not os.path.isdir(tdir):
print("Unable to access template dir: %s" % tdir)
sys.exit(1)
if not os.listdir(tdir):
print("No template files found in template dir %s" % tdir)
sys.exit(0)
if not tmpl:
msg = "No template type is provided, "
msg += "see available templates via --templates option"
print(msg)
sys.exit(1)
def functor(code, kwds, debug=0):
"""
Auto-generate and execute function with given code and configuration
For details of compile/exec/eval see
http://lucumr.pocoo.org/2011/2/1/exec-in-python/
"""
args = []
for key, val in kwds.items():
if isinstance(val, str):
arg = '%s="%s"' % (key, val)
elif isinstance(val, list):
arg = '%s=%s' % (key, val)
else:
msg = 'Unsupported data type "%s" <%s>' % (val, type(val))
raise Exception(msg)
args.append(arg)
func = '\nimport sys'
func += '\nimport io'
func += "\ndef func(%s):\n" % ','.join(args)
func += code
func += """
def capture():
"Capture snippet printous"
old_stdout = sys.stdout
sys.stdout = io.StringIO()
func()
out = sys.stdout.getvalue()
sys.stdout = old_stdout
return out\n
capture()\n"""
if debug:
print("\n### generated code\n")
print(func)
# compile python code as exec statement
obj = compile(func, '<string>', 'exec')
# define execution namespace
namespace = {}
# execute compiled python code in given namespace
exec(obj, namespace)
# located generated function object, run it and return its results
return namespace['capture']()
def user_info(ainput=None):
"Return user name and office location, based on UNIX finger"
if ainput:
return ainput
pwdstr = pwd.getpwnam(os.getlogin())
author = pwdstr.pw_gecos
if author and isinstance(author, str):
author = author.split(',')[0]
return author
def code_generator(kwds):
"""
Code generator function, parse user arguments, load and
return appropriate template generator module.
"""
debug = kwds.get('debug', None)
if debug:
print("Configuration:")
pprint.pprint(kwds)
try:
klass = kwds.get('tmpl')
mname = 'FWCore.Skeletons.%s' % klass.lower()
module = __import__(mname, fromlist=[klass])
except ImportError as err:
klass = 'AbstractPkg'
module = __import__('FWCore.Skeletons.pkg', fromlist=[klass])
if debug:
print("%s, will use %s" % (str(err), klass))
obj = getattr(module, klass)(kwds)
return obj
def tree(idir):
"Print directory content, similar to tree UNIX command"
if idir[-1] == '/':
idir = idir[-1]
dsep = ''
fsep = ''
dtot = -1 # we'll not count initial directory
ftot = 0
for root, dirs, files in os.walk(idir):
dirs = root.split('/')
ndirs = len(dirs)
if ndirs > 1:
dsep = '| '*(ndirs-1)
print('%s%s/' % (dsep, dirs[-1]))
dtot += 1
for fname in files:
fsep = dsep + '|--'
print('%s %s' % (fsep, fname))
ftot += 1
if dtot == -1 or not dtot:
dmsg = ''
else:
dmsg = '%s directories,' % dtot
if ftot:
fmsg = '%s file' % ftot
if ftot > 1:
fmsg += 's'
else:
fmsg = ''
if dmsg and fmsg:
print("Total: %s %s" % (dmsg, fmsg))
else:
print("No directories/files in %s" % idir)
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