Plugins/CheckerPlugins/CodeStyleChecker/CodeStyleChecker.py

Fri, 17 Jan 2014 23:38:29 +0100

author
T.Rzepka <Tobias.Rzepka@gmail.com>
date
Fri, 17 Jan 2014 23:38:29 +0100
branch
BgService
changeset 3228
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parent 3209
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child 3413
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permissions
-rw-r--r--

Bugfixes to work under Python3 and unicode issues for Python2 fixed.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2011 - 2013 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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5
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6 """
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7 Module implementing the code style checker.
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8 """
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9
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10 import sys
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11
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12 import pep8
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13 from NamingStyleChecker import NamingStyleChecker
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14
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15 # register the name checker
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16 pep8.register_check(NamingStyleChecker, NamingStyleChecker.Codes)
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17
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18 from DocStyleChecker import DocStyleChecker
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19
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20
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21 def initService():
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22 """
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23 Initialize the service and return the entry point.
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24
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25 @return the entry point for the background client (function)
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26 """
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27 return codeStyleCheck
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28
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29
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30 class CodeStyleCheckerReport(pep8.BaseReport):
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31 """
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32 Class implementing a special report to be used with our dialog.
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33 """
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34 def __init__(self, options):
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35 """
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36 Constructor
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37
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38 @param options options for the report (optparse.Values)
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39 """
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40 super(CodeStyleCheckerReport, self).__init__(options)
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41
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42 self.__repeat = options.repeat
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43 self.errors = []
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44
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45 def error_args(self, line_number, offset, code, check, *args):
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46 """
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47 Public method to collect the error messages.
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48
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49 @param line_number line number of the issue (integer)
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50 @param offset position within line of the issue (integer)
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51 @param code message code (string)
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52 @param check reference to the checker function (function)
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53 @param args arguments for the message (list)
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54 @return error code (string)
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55 """
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56 code = super(CodeStyleCheckerReport, self).error_args(
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57 line_number, offset, code, check, *args)
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58 if code and (self.counters[code] == 1 or self.__repeat):
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59 if code in NamingStyleChecker.Codes:
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60 text = NamingStyleChecker.getMessage(code, *args)
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61 else:
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62 text = pep8.getMessage(code, *args)
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63 self.errors.append(
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64 (self.filename, line_number, offset, text)
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65 )
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66 return code
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67
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68
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69 def extractLineFlags(line, startComment="#", endComment=""):
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70 """
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71 Function to extract flags starting and ending with '__' from a line
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72 comment.
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73
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74 @param line line to extract flags from (string)
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75 @keyparam startComment string identifying the start of the comment (string)
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76 @keyparam endComment string identifying the end of a comment (string)
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77 @return list containing the extracted flags (list of strings)
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78 """
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79 flags = []
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80
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81 pos = line.rfind(startComment)
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82 if pos >= 0:
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83 comment = line[pos + len(startComment):].strip()
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84 if endComment:
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85 comment = comment.replace("endComment", "")
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86 flags = [f.strip() for f in comment.split()
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87 if (f.startswith("__") and f.endswith("__"))]
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88 return flags
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89
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90
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91 def codeStyleCheck(filename, source, args):
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92 """
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93 Do the code style check and/ or fix found errors.
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94
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95 @param filename source filename (string)
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96 @param source string containing the code to check (string)
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97 @param args arguments used by the codeStyleCheck function (list of
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98 excludeMessages (str), includeMessages (str), repeatMessages
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99 (bool), fixCodes (str), noFixCodes (str), fixIssues (bool),
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100 maxLineLength (int), hangClosing (bool), docType (str), errors
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101 (list of str), eol (str), encoding (str))
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102 @return tuple of stats (dict) and results (tuple for each found violation
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103 of style (tuple of lineno (int), position (int), text (str), fixed
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104 (bool), autofixing (bool), fixedMsg (str)))
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105 """
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106 excludeMessages, includeMessages, \
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107 repeatMessages, fixCodes, noFixCodes, fixIssues, maxLineLength, \
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108 hangClosing, docType, errors, eol, encoding = args
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109
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110 stats = {}
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111 # avoid 'Encoding declaration in unicode string' exception on Python2
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112 if sys.version_info[0] == 2:
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113 if encoding == 'utf-8-bom':
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114 enc = 'utf-8'
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115 else:
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116 enc = encoding
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117 source = [line.encode(enc) for line in source]
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118
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119 if fixIssues:
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120 from CodeStyleFixer import CodeStyleFixer
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121 fixer = CodeStyleFixer(
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
122 filename, source, fixCodes, noFixCodes,
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
123 maxLineLength, True, eol) # always fix in place
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
124 else:
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
125 fixer = None
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
126
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
127 if not errors:
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
128 if includeMessages:
c5432abceb25 CodeStyleChecker moved to background service and done a little cleanup.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
129 select = [s.strip() for s in
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
130 includeMessages.split(',') if s.strip()]
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
131 else:
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
132 select = []
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
133 if excludeMessages:
c5432abceb25 CodeStyleChecker moved to background service and done a little cleanup.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
134 ignore = [i.strip() for i in
c5432abceb25 CodeStyleChecker moved to background service and done a little cleanup.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
135 excludeMessages.split(',') if i.strip()]
c5432abceb25 CodeStyleChecker moved to background service and done a little cleanup.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
136 else:
c5432abceb25 CodeStyleChecker moved to background service and done a little cleanup.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
137 ignore = []
c5432abceb25 CodeStyleChecker moved to background service and done a little cleanup.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
138
c5432abceb25 CodeStyleChecker moved to background service and done a little cleanup.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
139 # check coding style
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
140 styleGuide = pep8.StyleGuide(
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
141 reporter=CodeStyleCheckerReport,
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
142 repeat=repeatMessages,
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
143 select=select,
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
144 ignore=ignore,
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
145 max_line_length=maxLineLength,
c5432abceb25 CodeStyleChecker moved to background service and done a little cleanup.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
146 hang_closing=hangClosing,
c5432abceb25 CodeStyleChecker moved to background service and done a little cleanup.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
147 )
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
148 report = styleGuide.check_files([filename])
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
149 stats.update(report.counters)
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
150
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
151 # check documentation style
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
152 docStyleChecker = DocStyleChecker(
c5432abceb25 CodeStyleChecker moved to background service and done a little cleanup.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
153 source, filename, select, ignore, [], repeatMessages,
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
154 maxLineLength=maxLineLength, docType=docType)
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
155 docStyleChecker.run()
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
156 stats.update(docStyleChecker.counters)
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
157
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
158 errors = report.errors + docStyleChecker.errors
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
159
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
160 deferredFixes = {}
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
161 results = []
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
162 for error in errors:
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
163 fname, lineno, position, text = error
c5432abceb25 CodeStyleChecker moved to background service and done a little cleanup.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
164 if lineno > len(source):
c5432abceb25 CodeStyleChecker moved to background service and done a little cleanup.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
165 lineno = len(source)
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
166 if "__IGNORE_WARNING__" not in \
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
167 extractLineFlags(source[lineno - 1].strip()):
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
168 if fixer:
c5432abceb25 CodeStyleChecker moved to background service and done a little cleanup.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
169 res, msg, id_ = fixer.fixIssue(lineno, position, text)
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
170 if res == -1:
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
171 itm = [lineno, position, text]
c5432abceb25 CodeStyleChecker moved to background service and done a little cleanup.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
172 deferredFixes[id_] = itm
2896
9fa71ee50b3d Finished the pEP-8 naming checker implementation by doing the Py2 variant.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2864
diff changeset
173 else:
3209
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
174 itm = [lineno, position, text, res == 1, True, msg]
c5432abceb25 CodeStyleChecker moved to background service and done a little cleanup.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
175 else:
c5432abceb25 CodeStyleChecker moved to background service and done a little cleanup.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
176 itm = [lineno, position, text, False, False, '']
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
177 results.append(itm)
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
178
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
179 if fixer:
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
180 deferredResults = fixer.finalize()
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
181 for id_ in deferredResults:
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
182 fixed, msg = deferredResults[id_]
c5432abceb25 CodeStyleChecker moved to background service and done a little cleanup.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
183 itm = deferredFixes[id_]
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
184 itm.extend([fixed == 1, fixed == 1, msg])
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
185 fixer.saveFile(encoding)
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T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
186
c5432abceb25 CodeStyleChecker moved to background service and done a little cleanup.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3145
diff changeset
187 return stats, results

eric ide

mercurial