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+#! /usr/bin/env python
+# encoding: utf-8
+#
+# written by Sylvain Rouquette, 2011
+
+'''
+Install pep8 module:
+$ easy_install pep8
+ or
+$ pip install pep8
+
+To add the pep8 tool to the waf file:
+$ ./waf-light --tools=compat15,pep8
+ or, if you have waf >= 1.6.2
+$ ./waf update --files=pep8
+
+
+Then add this to your wscript:
+
+[at]extension('.py', 'wscript')
+def run_pep8(self, node):
+ self.create_task('Pep8', node)
+
+'''
+
+import threading
+from waflib import Task, Options
+
+pep8 = __import__('pep8')
+
+
+class Pep8(Task.Task):
+ color = 'PINK'
+ lock = threading.Lock()
+
+ def check_options(self):
+ if pep8.options:
+ return
+ pep8.options = Options.options
+ pep8.options.prog = 'pep8'
+ excl = pep8.options.exclude.split(',')
+ pep8.options.exclude = [s.rstrip('/') for s in excl]
+ if pep8.options.filename:
+ pep8.options.filename = pep8.options.filename.split(',')
+ if pep8.options.select:
+ pep8.options.select = pep8.options.select.split(',')
+ else:
+ pep8.options.select = []
+ if pep8.options.ignore:
+ pep8.options.ignore = pep8.options.ignore.split(',')
+ elif pep8.options.select:
+ # Ignore all checks which are not explicitly selected
+ pep8.options.ignore = ['']
+ elif pep8.options.testsuite or pep8.options.doctest:
+ # For doctest and testsuite, all checks are required
+ pep8.options.ignore = []
+ else:
+ # The default choice: ignore controversial checks
+ pep8.options.ignore = pep8.DEFAULT_IGNORE.split(',')
+ pep8.options.physical_checks = pep8.find_checks('physical_line')
+ pep8.options.logical_checks = pep8.find_checks('logical_line')
+ pep8.options.counters = dict.fromkeys(pep8.BENCHMARK_KEYS, 0)
+ pep8.options.messages = {}
+
+ def run(self):
+ with Pep8.lock:
+ self.check_options()
+ pep8.input_file(self.inputs[0].abspath())
+ return 0 if not pep8.get_count() else -1
+
+
+def options(opt):
+ opt.add_option('-q', '--quiet', default=0, action='count',
+ help="report only file names, or nothing with -qq")
+ opt.add_option('-r', '--repeat', action='store_true',
+ help="show all occurrences of the same error")
+ opt.add_option('--exclude', metavar='patterns',
+ default=pep8.DEFAULT_EXCLUDE,
+ help="exclude files or directories which match these "
+ "comma separated patterns (default: %s)" %
+ pep8.DEFAULT_EXCLUDE,
+ dest='exclude')
+ opt.add_option('--filename', metavar='patterns', default='*.py',
+ help="when parsing directories, only check filenames "
+ "matching these comma separated patterns (default: "
+ "*.py)")
+ opt.add_option('--select', metavar='errors', default='',
+ help="select errors and warnings (e.g. E,W6)")
+ opt.add_option('--ignore', metavar='errors', default='',
+ help="skip errors and warnings (e.g. E4,W)")
+ opt.add_option('--show-source', action='store_true',
+ help="show source code for each error")
+ opt.add_option('--show-pep8', action='store_true',
+ help="show text of PEP 8 for each error")
+ opt.add_option('--statistics', action='store_true',
+ help="count errors and warnings")
+ opt.add_option('--count', action='store_true',
+ help="print total number of errors and warnings "
+ "to standard error and set exit code to 1 if "
+ "total is not null")
+ opt.add_option('--benchmark', action='store_true',
+ help="measure processing speed")
+ opt.add_option('--testsuite', metavar='dir',
+ help="run regression tests from dir")
+ opt.add_option('--doctest', action='store_true',
+ help="run doctest on myself")