Mercurial > hg
annotate tests/f @ 36265:b44fac3a49fb
py3: factor out byterepr() which returns an asciified value on py3
author | Yuya Nishihara <yuya@tcha.org> |
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date | Sat, 17 Feb 2018 18:09:56 +0900 |
parents | c69e78ef2b54 |
children | 0585337ea787 |
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 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 def iterbytes(s): |
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40 for i in range(len(s)): |
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41 yield s[i:i + 1] |
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42 else: |
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43 iterbytes = iter |
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44 |
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45 def visit(opts, filenames, outfile): |
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46 """Process filenames in the way specified in opts, writing output to |
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47 outfile.""" |
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48 for f in sorted(filenames): |
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49 isstdin = f == '-' |
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50 if not isstdin and not os.path.lexists(f): |
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51 outfile.write(b'%s: file not found\n' % f.encode('utf-8')) |
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52 continue |
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53 quiet = opts.quiet and not opts.recurse or isstdin |
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54 isdir = os.path.isdir(f) |
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55 islink = os.path.islink(f) |
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56 isfile = os.path.isfile(f) and not islink |
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57 dirfiles = None |
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58 content = None |
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59 facts = [] |
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60 if isfile: |
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61 if opts.type: |
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62 facts.append(b'file') |
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63 if any((opts.hexdump, opts.dump, opts.md5, opts.sha1, opts.sha256)): |
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64 content = open(f, 'rb').read() |
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65 elif islink: |
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66 if opts.type: |
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67 facts.append(b'link') |
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68 content = os.readlink(f) |
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69 elif isstdin: |
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70 content = getattr(sys.stdin, 'buffer', sys.stdin).read() |
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71 if opts.size: |
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72 facts.append(b'size=%d' % len(content)) |
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73 elif isdir: |
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74 if opts.recurse or opts.type: |
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75 dirfiles = glob.glob(f + '/*') |
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76 facts.append(b'directory with %d files' % len(dirfiles)) |
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77 elif opts.type: |
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78 facts.append(b'type unknown') |
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79 if not isstdin: |
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80 stat = os.lstat(f) |
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81 if opts.size and not isdir: |
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82 facts.append(b'size=%d' % stat.st_size) |
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83 if opts.mode and not islink: |
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84 facts.append(b'mode=%o' % (stat.st_mode & 0o777)) |
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85 if opts.links: |
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86 facts.append(b'links=%s' % stat.st_nlink) |
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87 if opts.newer: |
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88 # mtime might be in whole seconds so newer file might be same |
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89 if stat.st_mtime >= os.stat(opts.newer).st_mtime: |
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90 facts.append(b'newer than %s' % opts.newer) |
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91 else: |
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92 facts.append(b'older than %s' % opts.newer) |
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93 if opts.md5 and content is not None: |
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94 h = hashlib.md5(content) |
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95 facts.append(b'md5=%s' % binascii.hexlify(h.digest())[:opts.bytes]) |
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96 if opts.sha1 and content is not None: |
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97 h = hashlib.sha1(content) |
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98 facts.append(b'sha1=%s' % binascii.hexlify(h.digest())[:opts.bytes]) |
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99 if opts.sha256 and content is not None: |
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100 h = hashlib.sha256(content) |
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101 facts.append(b'sha256=%s' % |
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102 binascii.hexlify(h.digest())[:opts.bytes]) |
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103 if isstdin: |
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104 outfile.write(b', '.join(facts) + b'\n') |
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105 elif facts: |
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106 outfile.write(b'%s: %s\n' % (f.encode('utf-8'), b', '.join(facts))) |
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107 elif not quiet: |
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108 outfile.write(b'%s:\n' % f.encode('utf-8')) |
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109 if content is not None: |
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110 chunk = content |
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111 if not islink: |
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112 if opts.lines: |
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113 if opts.lines >= 0: |
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114 chunk = b''.join(chunk.splitlines(True)[:opts.lines]) |
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115 else: |
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116 chunk = b''.join(chunk.splitlines(True)[opts.lines:]) |
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117 if opts.bytes: |
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118 if opts.bytes >= 0: |
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119 chunk = chunk[:opts.bytes] |
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120 else: |
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121 chunk = chunk[opts.bytes:] |
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122 if opts.hexdump: |
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123 for i in range(0, len(chunk), 16): |
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124 s = chunk[i:i + 16] |
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125 outfile.write(b'%04x: %-47s |%s|\n' % |
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126 (i, b' '.join( |
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127 b'%02x' % ord(c) for c in iterbytes(s)), |
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128 re.sub(b'[^ -~]', b'.', s))) |
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129 if opts.dump: |
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130 if not quiet: |
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131 outfile.write(b'>>>\n') |
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132 outfile.write(chunk) |
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133 if not quiet: |
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134 if chunk.endswith(b'\n'): |
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135 outfile.write(b'<<<\n') |
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136 else: |
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137 outfile.write(b'\n<<< no trailing newline\n') |
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138 if opts.recurse and dirfiles: |
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139 assert not isstdin |
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140 visit(opts, dirfiles, outfile) |
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141 |
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142 if __name__ == "__main__": |
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143 parser = optparse.OptionParser("%prog [options] [filenames]") |
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144 parser.add_option("-t", "--type", action="store_true", |
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145 help="show file type (file or directory)") |
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146 parser.add_option("-m", "--mode", action="store_true", |
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147 help="show file mode") |
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148 parser.add_option("-l", "--links", action="store_true", |
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149 help="show number of links") |
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150 parser.add_option("-s", "--size", action="store_true", |
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151 help="show size of file") |
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152 parser.add_option("-n", "--newer", action="store", |
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153 help="check if file is newer (or same)") |
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154 parser.add_option("-r", "--recurse", action="store_true", |
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155 help="recurse into directories") |
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156 parser.add_option("-S", "--sha1", action="store_true", |
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157 help="show sha1 hash of the content") |
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158 parser.add_option("", "--sha256", action="store_true", |
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159 help="show sha256 hash of the content") |
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160 parser.add_option("-M", "--md5", action="store_true", |
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161 help="show md5 hash of the content") |
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162 parser.add_option("-D", "--dump", action="store_true", |
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163 help="dump file content") |
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164 parser.add_option("-H", "--hexdump", action="store_true", |
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165 help="hexdump file content") |
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166 parser.add_option("-B", "--bytes", type="int", |
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167 help="number of characters to dump") |
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168 parser.add_option("-L", "--lines", type="int", |
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169 help="number of lines to dump") |
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170 parser.add_option("-q", "--quiet", action="store_true", |
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171 help="no default output") |
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172 (opts, filenames) = parser.parse_args(sys.argv[1:]) |
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173 if not filenames: |
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174 filenames = ['-'] |
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175 |
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176 visit(opts, filenames, getattr(sys.stdout, 'buffer', sys.stdout)) |