Mercurial > cpython-lru_cache-weakref

annotate Tools/scripts/pathfix.py @ 49955:878d40468c4e legacy-trunk

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Issue #4384: Added logging integration with warnings module using captureWarnings(). This change includes a NullHandler which does nothing; it will be of use to library developers who want to avoid the "No handlers could be found for logger XXX" message which can appear if the library user doesn't configure logging.
author Vinay Sajip <vinay_sajip@yahoo.co.uk>
date Wed, 03 Dec 2008 23:22:58 +0000
parents 4727f260f6f8
children 33b156e118c0 6b18a095c2e7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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4341574e163b Changed logic so it now replaces anything that has #! and python in
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1 #! /usr/bin/env python
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60660341ee10 newslist.py: Added search for .newslistrc.py;
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2
60660341ee10 newslist.py: Added search for .newslistrc.py;
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3 # Change the #! line occurring in Python scripts. The new interpreter
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4 # pathname must be given with a -i option.
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5 #
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6 # Command line arguments are files or directories to be processed.
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7 # Directories are searched recursively for files whose name looks
60660341ee10 newslist.py: Added search for .newslistrc.py;
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8 # like a python module.
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9 # Symbolic links are always ignored (except as explicit directory
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10 # arguments). Of course, the original file is kept as a back-up
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11 # (with a "~" attached to its name).
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12 #
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13 # Undoubtedly you can do this using find and sed or perl, but this is
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14 # a nice example of Python code that recurses down a directory tree
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15 # and uses regular expressions. Also note several subtleties like
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16 # preserving the file's mode and avoiding to even write a temp file
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17 # when no changes are needed for a file.
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18 #
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19 # NB: by changing only the function fixfile() you can turn this
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20 # into a program for a different change to Python programs...
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21
60660341ee10 newslist.py: Added search for .newslistrc.py;
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22 import sys
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23 import re
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24 import os
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25 from stat import *
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26 import getopt
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27
60660341ee10 newslist.py: Added search for .newslistrc.py;
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28 err = sys.stderr.write
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29 dbg = err
60660341ee10 newslist.py: Added search for .newslistrc.py;
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30 rep = sys.stdout.write
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31
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32 new_interpreter = None
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33
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34 def main():
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35 global new_interpreter
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36 usage = ('usage: %s -i /interpreter file-or-directory ...\n' %
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37 sys.argv[0])
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38 try:
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39 opts, args = getopt.getopt(sys.argv[1:], 'i:')
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40 except getopt.error, msg:
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41 err(msg + '\n')
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42 err(usage)
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43 sys.exit(2)
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44 for o, a in opts:
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45 if o == '-i':
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46 new_interpreter = a
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47 if not new_interpreter or new_interpreter[0] != '/' or not args:
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48 err('-i option or file-or-directory missing\n')
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49 err(usage)
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50 sys.exit(2)
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51 bad = 0
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52 for arg in args:
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53 if os.path.isdir(arg):
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54 if recursedown(arg): bad = 1
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55 elif os.path.islink(arg):
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56 err(arg + ': will not process symbolic links\n')
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57 bad = 1
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58 else:
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59 if fix(arg): bad = 1
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60 sys.exit(bad)
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61
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62 ispythonprog = re.compile('^[a-zA-Z0-9_]+\.py$')
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63 def ispython(name):
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64 return ispythonprog.match(name) >= 0
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65
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66 def recursedown(dirname):
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67 dbg('recursedown(%r)\n' % (dirname,))
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68 bad = 0
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69 try:
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70 names = os.listdir(dirname)
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71 except os.error, msg:
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72 err('%s: cannot list directory: %r\n' % (dirname, msg))
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73 return 1
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74 names.sort()
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75 subdirs = []
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76 for name in names:
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77 if name in (os.curdir, os.pardir): continue
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78 fullname = os.path.join(dirname, name)
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79 if os.path.islink(fullname): pass
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80 elif os.path.isdir(fullname):
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81 subdirs.append(fullname)
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82 elif ispython(name):
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83 if fix(fullname): bad = 1
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84 for fullname in subdirs:
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85 if recursedown(fullname): bad = 1
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86 return bad
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87
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88 def fix(filename):
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89 ## dbg('fix(%r)\n' % (filename,))
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90 try:
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91 f = open(filename, 'r')
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92 except IOError, msg:
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93 err('%s: cannot open: %r\n' % (filename, msg))
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94 return 1
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95 line = f.readline()
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96 fixed = fixline(line)
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97 if line == fixed:
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98 rep(filename+': no change\n')
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99 f.close()
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100 return
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101 head, tail = os.path.split(filename)
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102 tempname = os.path.join(head, '@' + tail)
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103 try:
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104 g = open(tempname, 'w')
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105 except IOError, msg:
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106 f.close()
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107 err('%s: cannot create: %r\n' % (tempname, msg))
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108 return 1
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109 rep(filename + ': updating\n')
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110 g.write(fixed)
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111 BUFSIZE = 8*1024
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112 while 1:
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113 buf = f.read(BUFSIZE)
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114 if not buf: break
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115 g.write(buf)
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116 g.close()
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117 f.close()
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118
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119 # Finishing touch -- move files
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120
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121 # First copy the file's mode to the temp file
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122 try:
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123 statbuf = os.stat(filename)
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124 os.chmod(tempname, statbuf[ST_MODE] & 07777)
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125 except os.error, msg:
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126 err('%s: warning: chmod failed (%r)\n' % (tempname, msg))
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127 # Then make a backup of the original file as filename~
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128 try:
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129 os.rename(filename, filename + '~')
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130 except os.error, msg:
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131 err('%s: warning: backup failed (%r)\n' % (filename, msg))
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132 # Now move the temp file to the original file
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133 try:
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134 os.rename(tempname, filename)
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diff changeset
135 except os.error, msg:
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136 err('%s: rename failed (%r)\n' % (filename, msg))
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137 return 1
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138 # Return succes
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139 return 0
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140
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141 def fixline(line):
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8a7a2f1f88f0 Apply diff2.txt from SF patch http://www.python.org/sf/572113
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142 if not line.startswith('#!'):
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143 return line
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144 if "python" not in line:
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145 return line
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146 return '#! %s\n' % new_interpreter
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147
33074
981fff7363b9 [Patch #1005491 ] use __name__ == '__main__' in scripts
Andrew M. Kuchling <amk@amk.ca>
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diff changeset
148 if __name__ == '__main__':
981fff7363b9 [Patch #1005491 ] use __name__ == '__main__' in scripts
Andrew M. Kuchling <amk@amk.ca>
parents: 31515
diff changeset
149 main()