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