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annotate tests/hghave @ 5248:c0281c6b40b0

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hghave: wrap command output matching
author Patrick Mezard <pmezard@gmail.com>
date Mon, 27 Aug 2007 22:17:51 +0200
parents 4fa0f2dff643
children d82ebcdf20e1 961876838de0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/env python
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2 """Test the running system for features availability. Exit with zero
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3 if all features are there, non-zero otherwise. If a feature name is
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4 prefixed with "no-", the absence of feature is tested.
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5 """
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6 import optparse
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7 import os
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8 import re
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9 import sys
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10 import tempfile
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11
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12 tempprefix = 'hg-hghave-'
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13
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14 def matchoutput(cmd, regexp):
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15 """Return True if cmd executes successfully and its output
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16 is matched by the supplied regular expression.
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17 """
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18 r = re.compile(regexp)
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19 fh = os.popen(cmd)
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20 s = fh.read()
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21 ret = fh.close()
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22 return ret is None and r.search(s)
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23
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24 def has_symlink():
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25 return hasattr(os, "symlink")
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26
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27 def has_fifo():
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28 return hasattr(os, "mkfifo")
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29
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30 def has_executablebit():
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31 fd, path = tempfile.mkstemp(prefix=tempprefix)
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32 os.close(fd)
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33 try:
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34 s = os.lstat(path).st_mode
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35 os.chmod(path, s | 0100)
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36 return (os.lstat(path).st_mode & 0100 != 0)
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37 finally:
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38 os.remove(path)
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39
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40 def has_eol_in_paths():
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41 try:
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42 fd, path = tempfile.mkstemp(prefix=tempprefix, suffix='\n\r')
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43 os.close(fd)
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44 os.remove(path)
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45 return True
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46 except:
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47 return False
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48
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49 def has_hotshot():
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50 try:
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51 # hotshot.stats tests hotshot and many problematic dependencies
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52 # like profile.
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53 import hotshot.stats
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54 return True
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55 except ImportError:
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56 return False
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57
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58 def has_lsprof():
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59 try:
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60 import _lsprof
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61 return True
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62 except ImportError:
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63 return False
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64
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65 def has_git():
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66 return matchoutput('git --version 2>&1', r'^git version')
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67
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68 checks = {
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69 "eol-in-paths": (has_eol_in_paths, "end-of-lines in paths"),
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70 "execbit": (has_executablebit, "executable bit"),
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71 "git": (has_git, "git command line client"),
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72 "fifo": (has_fifo, "named pipes"),
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73 "hotshot": (has_hotshot, "python hotshot module"),
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74 "lsprof": (has_lsprof, "python lsprof module"),
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75 "symlink": (has_symlink, "symbolic links"),
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76 }
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77
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78 def list_features():
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79 for name, feature in checks.iteritems():
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80 desc = feature[1]
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81 print name + ':', desc
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82
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83 parser = optparse.OptionParser("%prog [options] [features]")
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84 parser.add_option("--list-features", action="store_true",
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85 help="list available features")
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86 parser.add_option("-q", "--quiet", action="store_true",
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87 help="check features silently")
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88
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89 if __name__ == '__main__':
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90 options, args = parser.parse_args()
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91 if options.list_features:
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92 list_features()
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93 sys.exit(0)
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94
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95 quiet = options.quiet
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96
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97 failures = 0
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98
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99 def error(msg):
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100 global failures
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101 if not quiet:
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102 sys.stderr.write(msg + '\n')
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103 failures += 1
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104
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105 for feature in args:
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106 negate = feature.startswith('no-')
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107 if negate:
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108 feature = feature[3:]
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109
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110 if feature not in checks:
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111 error('hghave: unknown feature: ' + feature)
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112 continue
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113
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114 check, desc = checks[feature]
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115 if not negate and not check():
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116 error('hghave: missing feature: ' + desc)
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117 elif negate and check():
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118 error('hghave: system supports %s' % desc)
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119
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120 if failures != 0:
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121 sys.exit(1)
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122
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123