Mercurial > hg
annotate tests/f @ 47859:155a2ec8a9dc
merge with stable
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Sun, 22 Aug 2021 16:32:06 -0400 |
parents | c102b704edb5 |
children | 6000f5b25c9b |
rev | line source |
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1 #!/usr/bin/env python3 |
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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 binascii |
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29 import glob |
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30 import hashlib |
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31 import optparse |
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32 import os |
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33 import re |
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34 import sys |
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35 |
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36 # Python 3 adapters |
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37 ispy3 = sys.version_info[0] >= 3 |
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38 if ispy3: |
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39 |
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40 def iterbytes(s): |
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41 for i in range(len(s)): |
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42 yield s[i : i + 1] |
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43 |
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44 |
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45 else: |
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46 iterbytes = iter |
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47 |
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48 |
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49 def visit(opts, filenames, outfile): |
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50 """Process filenames in the way specified in opts, writing output to |
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51 outfile.""" |
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52 for f in sorted(filenames): |
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53 isstdin = f == '-' |
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54 if not isstdin and not os.path.lexists(f): |
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55 outfile.write(b'%s: file not found\n' % f.encode('utf-8')) |
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56 continue |
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57 quiet = opts.quiet and not opts.recurse or isstdin |
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58 isdir = os.path.isdir(f) |
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59 islink = os.path.islink(f) |
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60 isfile = os.path.isfile(f) and not islink |
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61 dirfiles = None |
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62 content = None |
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63 facts = [] |
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64 if isfile: |
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65 if opts.type: |
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66 facts.append(b'file') |
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67 if any((opts.hexdump, opts.dump, opts.md5, opts.sha1, opts.sha256)): |
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68 with open(f, 'rb') as fobj: |
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69 content = fobj.read() |
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70 elif islink: |
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71 if opts.type: |
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72 facts.append(b'link') |
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73 content = os.readlink(f).encode('utf8') |
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74 elif isstdin: |
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75 content = getattr(sys.stdin, 'buffer', sys.stdin).read() |
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76 if opts.size: |
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77 facts.append(b'size=%d' % len(content)) |
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78 elif isdir: |
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79 if opts.recurse or opts.type: |
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80 dirfiles = glob.glob(f + '/*') |
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81 facts.append(b'directory with %d files' % len(dirfiles)) |
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82 elif opts.type: |
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83 facts.append(b'type unknown') |
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84 if not isstdin: |
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85 stat = os.lstat(f) |
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86 if opts.size and not isdir: |
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87 facts.append(b'size=%d' % stat.st_size) |
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88 if opts.mode and not islink: |
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89 facts.append(b'mode=%o' % (stat.st_mode & 0o777)) |
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90 if opts.links: |
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91 facts.append(b'links=%d' % stat.st_nlink) |
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92 if opts.newer: |
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93 # mtime might be in whole seconds so newer file might be same |
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94 if stat.st_mtime >= os.stat(opts.newer).st_mtime: |
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95 facts.append( |
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96 b'newer than %s' % opts.newer.encode('utf8', 'replace') |
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97 ) |
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98 else: |
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99 facts.append( |
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100 b'older than %s' % opts.newer.encode('utf8', 'replace') |
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101 ) |
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102 if opts.md5 and content is not None: |
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103 h = hashlib.md5(content) |
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104 facts.append(b'md5=%s' % binascii.hexlify(h.digest())[: opts.bytes]) |
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105 if opts.sha1 and content is not None: |
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106 h = hashlib.sha1(content) |
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107 facts.append( |
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108 b'sha1=%s' % binascii.hexlify(h.digest())[: opts.bytes] |
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109 ) |
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110 if opts.sha256 and content is not None: |
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111 h = hashlib.sha256(content) |
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112 facts.append( |
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113 b'sha256=%s' % binascii.hexlify(h.digest())[: opts.bytes] |
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114 ) |
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115 if isstdin: |
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116 outfile.write(b', '.join(facts) + b'\n') |
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117 elif facts: |
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118 outfile.write(b'%s: %s\n' % (f.encode('utf-8'), b', '.join(facts))) |
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119 elif not quiet: |
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120 outfile.write(b'%s:\n' % f.encode('utf-8')) |
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121 if content is not None: |
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122 chunk = content |
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123 if not islink: |
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124 if opts.lines: |
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125 if opts.lines >= 0: |
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126 chunk = b''.join(chunk.splitlines(True)[: opts.lines]) |
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127 else: |
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128 chunk = b''.join(chunk.splitlines(True)[opts.lines :]) |
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129 if opts.bytes: |
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130 if opts.bytes >= 0: |
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131 chunk = chunk[: opts.bytes] |
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132 else: |
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133 chunk = chunk[opts.bytes :] |
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134 if opts.hexdump: |
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135 for i in range(0, len(chunk), 16): |
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136 s = chunk[i : i + 16] |
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137 outfile.write( |
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138 b'%04x: %-47s |%s|\n' |
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139 % ( |
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140 i, |
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141 b' '.join(b'%02x' % ord(c) for c in iterbytes(s)), |
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142 re.sub(b'[^ -~]', b'.', s), |
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143 ) |
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144 ) |
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145 if opts.dump: |
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146 if not quiet: |
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147 outfile.write(b'>>>\n') |
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148 outfile.write(chunk) |
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149 if not quiet: |
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150 if chunk.endswith(b'\n'): |
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151 outfile.write(b'<<<\n') |
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152 else: |
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153 outfile.write(b'\n<<< no trailing newline\n') |
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154 if opts.recurse and dirfiles: |
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155 assert not isstdin |
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156 visit(opts, dirfiles, outfile) |
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157 |
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158 |
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159 if __name__ == "__main__": |
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160 parser = optparse.OptionParser("%prog [options] [filenames]") |
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161 parser.add_option( |
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162 "-t", |
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163 "--type", |
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164 action="store_true", |
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165 help="show file type (file or directory)", |
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166 ) |
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167 parser.add_option( |
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168 "-m", "--mode", action="store_true", help="show file mode" |
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169 ) |
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170 parser.add_option( |
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171 "-l", "--links", action="store_true", help="show number of links" |
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172 ) |
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173 parser.add_option( |
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174 "-s", "--size", action="store_true", help="show size of file" |
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175 ) |
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176 parser.add_option( |
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177 "-n", "--newer", action="store", help="check if file is newer (or same)" |
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178 ) |
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179 parser.add_option( |
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180 "-r", "--recurse", action="store_true", help="recurse into directories" |
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181 ) |
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182 parser.add_option( |
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183 "-S", |
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184 "--sha1", |
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185 action="store_true", |
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186 help="show sha1 hash of the content", |
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187 ) |
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188 parser.add_option( |
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189 "", |
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190 "--sha256", |
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191 action="store_true", |
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192 help="show sha256 hash of the content", |
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193 ) |
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194 parser.add_option( |
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195 "-M", "--md5", action="store_true", help="show md5 hash of the content" |
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196 ) |
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197 parser.add_option( |
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198 "-D", "--dump", action="store_true", help="dump file content" |
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199 ) |
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200 parser.add_option( |
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201 "-H", "--hexdump", action="store_true", help="hexdump file content" |
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202 ) |
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203 parser.add_option( |
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204 "-B", "--bytes", type="int", help="number of characters to dump" |
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205 ) |
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206 parser.add_option( |
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207 "-L", "--lines", type="int", help="number of lines to dump" |
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208 ) |
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209 parser.add_option( |
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210 "-q", "--quiet", action="store_true", help="no default output" |
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211 ) |
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212 (opts, filenames) = parser.parse_args(sys.argv[1:]) |
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213 if not filenames: |
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214 filenames = ['-'] |
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215 |
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216 visit(opts, filenames, getattr(sys.stdout, 'buffer', sys.stdout)) |