Mercurial > cpython-lru_cache-weakref

annotate Tools/scripts/byext.py @ 71607:df415bfbb652 2.7

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Document that atexit execution order is undefined (#9788)
author Éric Araujo <merwok@netwok.org>
date Fri, 29 Jul 2011 18:04:24 +0200
parents b2d4e6fc4f19
children 9a57c9d4b0b4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #! /usr/bin/env python
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2
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3 """Show file statistics by extension."""
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4
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5 import os
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6 import sys
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7
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8 class Stats:
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9
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10 def __init__(self):
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11 self.stats = {}
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12
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13 def statargs(self, args):
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14 for arg in args:
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15 if os.path.isdir(arg):
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16 self.statdir(arg)
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17 elif os.path.isfile(arg):
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18 self.statfile(arg)
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19 else:
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20 sys.stderr.write("Can't find %s\n" % arg)
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21 self.addstats("<???>", "unknown", 1)
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22
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23 def statdir(self, dir):
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24 self.addstats("<dir>", "dirs", 1)
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25 try:
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26 names = sorted(os.listdir(dir))
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27 except os.error as err:
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28 sys.stderr.write("Can't list %s: %s\n" % (dir, err))
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29 self.addstats("<dir>", "unlistable", 1)
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30 return
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31 for name in names:
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32 if name.startswith(".#"):
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33 continue # Skip CVS temp files
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34 if name.endswith("~"):
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35 continue# Skip Emacs backup files
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36 full = os.path.join(dir, name)
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37 if os.path.islink(full):
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38 self.addstats("<lnk>", "links", 1)
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39 elif os.path.isdir(full):
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40 self.statdir(full)
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41 else:
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42 self.statfile(full)
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43
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44 def statfile(self, filename):
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45 head, ext = os.path.splitext(filename)
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46 head, base = os.path.split(filename)
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47 if ext == base:
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48 ext = "" # E.g. .cvsignore is deemed not to have an extension
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49 ext = os.path.normcase(ext)
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50 if not ext:
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51 ext = "<none>"
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52 self.addstats(ext, "files", 1)
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53 try:
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54 f = open(filename, "rb")
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55 except IOError as err:
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56 sys.stderr.write("Can't open %s: %s\n" % (filename, err))
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57 self.addstats(ext, "unopenable", 1)
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58 return
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59 data = f.read()
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60 f.close()
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61 self.addstats(ext, "bytes", len(data))
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62 if b'\0' in data:
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63 self.addstats(ext, "binary", 1)
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64 return
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65 if not data:
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66 self.addstats(ext, "empty", 1)
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67 #self.addstats(ext, "chars", len(data))
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68 lines = data.splitlines()
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69 self.addstats(ext, "lines", len(lines))
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70 del lines
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71 words = data.split()
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72 self.addstats(ext, "words", len(words))
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73
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74 def addstats(self, ext, key, n):
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75 d = self.stats.setdefault(ext, {})
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76 d[key] = d.get(key, 0) + n
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77
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78 def report(self):
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79 exts = sorted(self.stats.keys())
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80 # Get the column keys
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81 columns = {}
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82 for ext in exts:
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83 columns.update(self.stats[ext])
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84 cols = sorted(columns.keys())
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85 colwidth = {}
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86 colwidth["ext"] = max([len(ext) for ext in exts])
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87 minwidth = 6
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88 self.stats["TOTAL"] = {}
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89 for col in cols:
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90 total = 0
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91 cw = max(minwidth, len(col))
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92 for ext in exts:
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93 value = self.stats[ext].get(col)
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94 if value is None:
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95 w = 0
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96 else:
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97 w = len("%d" % value)
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98 total += value
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99 cw = max(cw, w)
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100 cw = max(cw, len(str(total)))
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101 colwidth[col] = cw
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102 self.stats["TOTAL"][col] = total
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103 exts.append("TOTAL")
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104 for ext in exts:
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105 self.stats[ext]["ext"] = ext
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106 cols.insert(0, "ext")
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107 def printheader():
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108 for col in cols:
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109 print("%*s" % (colwidth[col], col), end=" ")
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110 print()
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111 printheader()
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112 for ext in exts:
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113 for col in cols:
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114 value = self.stats[ext].get(col, "")
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115 print("%*s" % (colwidth[col], value), end=" ")
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116 print()
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117 printheader() # Another header at the bottom
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118
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119 def main():
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120 args = sys.argv[1:]
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121 if not args:
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122 args = [os.curdir]
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123 s = Stats()
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124 s.statargs(args)
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125 s.report()
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126
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127 if __name__ == "__main__":
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128 main()