Mercurial > hg
annotate tests/f @ 46858:85e3a630cad9
revlog: move the details of revlog "v2" index inside revlog.utils.constants
the revlog module is quite large and this kind of format information would handy
for other module. So let us start to gather this information about the format in
a more appropriate place.
We update various reference to this information to use the new "source of truth"
in the process.
Differential Revision: https://phab.mercurial-scm.org/D10305
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Mon, 05 Apr 2021 12:21:12 +0200 |
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)) |