Mercurial > hg
annotate tests/f @ 31119:13bbcd56c57a
merge with stable
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Tue, 28 Feb 2017 11:13:25 -0800 |
parents | 318534bb5dfd |
children | c425b678df7c |
rev | line source |
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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) |