annotate tests/f @ 29233:318534bb5dfd

tests: make 'f' utility import hashlib unconditionally It must exist on Python 2.5+.
author Yuya Nishihara <yuya@tcha.org>
date Sun, 15 May 2016 10:45:32 +0900
parents b68af177937d
children c425b678df7c
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 """
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4 Utility for inspecting files in various ways.
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5
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6 This tool is like the collection of tools found in a unix environment but are
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7 cross platform and stable and suitable for our needs in the test suite.
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8
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9 This can be used instead of tools like:
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10 [
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11 dd
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12 find
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13 head
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14 hexdump
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15 ls
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16 md5sum
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17 readlink
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18 sha1sum
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19 stat
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20 tail
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21 test
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22 readlink.py
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23 md5sum.py
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24 """
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25
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26 from __future__ import absolute_import
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27
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28 import glob
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29 import hashlib
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30 import optparse
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31 import os
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32 import re
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33 import sys
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34
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35 def visit(opts, filenames, outfile):
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36 """Process filenames in the way specified in opts, writing output to
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37 outfile."""
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38 for f in sorted(filenames):
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39 isstdin = f == '-'
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40 if not isstdin and not os.path.lexists(f):
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41 outfile.write('%s: file not found\n' % f)
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42 continue
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43 quiet = opts.quiet and not opts.recurse or isstdin
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44 isdir = os.path.isdir(f)
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45 islink = os.path.islink(f)
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46 isfile = os.path.isfile(f) and not islink
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47 dirfiles = None
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48 content = None
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49 facts = []
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50 if isfile:
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51 if opts.type:
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52 facts.append('file')
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53 if opts.hexdump or opts.dump or opts.md5:
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54 content = file(f, 'rb').read()
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55 elif islink:
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56 if opts.type:
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57 facts.append('link')
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58 content = os.readlink(f)
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59 elif isstdin:
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60 content = sys.stdin.read()
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61 if opts.size:
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62 facts.append('size=%s' % len(content))
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63 elif isdir:
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64 if opts.recurse or opts.type:
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65 dirfiles = glob.glob(f + '/*')
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66 facts.append('directory with %s files' % len(dirfiles))
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67 elif opts.type:
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68 facts.append('type unknown')
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69 if not isstdin:
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70 stat = os.lstat(f)
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71 if opts.size and not isdir:
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72 facts.append('size=%s' % stat.st_size)
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73 if opts.mode and not islink:
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74 facts.append('mode=%o' % (stat.st_mode & 0o777))
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75 if opts.links:
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76 facts.append('links=%s' % stat.st_nlink)
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77 if opts.newer:
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78 # mtime might be in whole seconds so newer file might be same
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79 if stat.st_mtime >= os.stat(opts.newer).st_mtime:
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80 facts.append('newer than %s' % opts.newer)
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81 else:
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82 facts.append('older than %s' % opts.newer)
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83 if opts.md5 and content is not None:
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84 h = hashlib.md5(content)
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85 facts.append('md5=%s' % h.hexdigest()[:opts.bytes])
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86 if opts.sha1 and content is not None:
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87 h = hashlib.sha1(content)
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88 facts.append('sha1=%s' % h.hexdigest()[:opts.bytes])
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89 if isstdin:
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90 outfile.write(', '.join(facts) + '\n')
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91 elif facts:
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92 outfile.write('%s: %s\n' % (f, ', '.join(facts)))
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93 elif not quiet:
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94 outfile.write('%s:\n' % f)
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95 if content is not None:
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96 chunk = content
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97 if not islink:
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98 if opts.lines:
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99 if opts.lines >= 0:
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100 chunk = ''.join(chunk.splitlines(True)[:opts.lines])
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101 else:
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102 chunk = ''.join(chunk.splitlines(True)[opts.lines:])
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103 if opts.bytes:
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104 if opts.bytes >= 0:
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105 chunk = chunk[:opts.bytes]
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106 else:
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107 chunk = chunk[opts.bytes:]
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108 if opts.hexdump:
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109 for i in range(0, len(chunk), 16):
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110 s = chunk[i:i + 16]
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111 outfile.write('%04x: %-47s |%s|\n' %
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112 (i, ' '.join('%02x' % ord(c) for c in s),
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113 re.sub('[^ -~]', '.', s)))
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114 if opts.dump:
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115 if not quiet:
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116 outfile.write('>>>\n')
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117 outfile.write(chunk)
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118 if not quiet:
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119 if chunk.endswith('\n'):
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120 outfile.write('<<<\n')
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121 else:
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122 outfile.write('\n<<< no trailing newline\n')
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123 if opts.recurse and dirfiles:
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124 assert not isstdin
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125 visit(opts, dirfiles, outfile)
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126
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127 if __name__ == "__main__":
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128 parser = optparse.OptionParser("%prog [options] [filenames]")
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129 parser.add_option("-t", "--type", action="store_true",
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130 help="show file type (file or directory)")
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131 parser.add_option("-m", "--mode", action="store_true",
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132 help="show file mode")
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133 parser.add_option("-l", "--links", action="store_true",
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134 help="show number of links")
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135 parser.add_option("-s", "--size", action="store_true",
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136 help="show size of file")
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137 parser.add_option("-n", "--newer", action="store",
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138 help="check if file is newer (or same)")
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139 parser.add_option("-r", "--recurse", action="store_true",
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140 help="recurse into directories")
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141 parser.add_option("-S", "--sha1", action="store_true",
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142 help="show sha1 hash of the content")
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143 parser.add_option("-M", "--md5", action="store_true",
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144 help="show md5 hash of the content")
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145 parser.add_option("-D", "--dump", action="store_true",
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146 help="dump file content")
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147 parser.add_option("-H", "--hexdump", action="store_true",
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148 help="hexdump file content")
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149 parser.add_option("-B", "--bytes", type="int",
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150 help="number of characters to dump")
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151 parser.add_option("-L", "--lines", type="int",
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152 help="number of lines to dump")
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153 parser.add_option("-q", "--quiet", action="store_true",
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154 help="no default output")
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155 (opts, filenames) = parser.parse_args(sys.argv[1:])
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156 if not filenames:
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157 filenames = ['-']
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158
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159 visit(opts, filenames, sys.stdout)