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565
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1 import os, stat, socket |
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2 import re |
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3 import sys |
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4 import tempfile |
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5 |
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6 tempprefix = 'hg-hghave-' |
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7 |
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8 def matchoutput(cmd, regexp, ignorestatus=False): |
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9 """Return True if cmd executes successfully and its output |
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10 is matched by the supplied regular expression. |
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11 """ |
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12 r = re.compile(regexp) |
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13 fh = os.popen(cmd) |
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14 s = fh.read() |
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15 try: |
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16 ret = fh.close() |
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17 except IOError: |
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18 # Happen in Windows test environment |
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19 ret = 1 |
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20 return (ignorestatus or ret is None) and r.search(s) |
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21 |
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22 def has_baz(): |
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23 return matchoutput('baz --version 2>&1', r'baz Bazaar version') |
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24 |
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25 def has_bzr(): |
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26 try: |
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27 import bzrlib |
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28 return bzrlib.__doc__ is not None |
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29 except ImportError: |
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30 return False |
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31 |
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32 def has_bzr114(): |
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33 try: |
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34 import bzrlib |
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35 return (bzrlib.__doc__ is not None |
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36 and bzrlib.version_info[:2] >= (1, 14)) |
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37 except ImportError: |
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38 return False |
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39 |
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40 def has_cvs(): |
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41 re = r'Concurrent Versions System.*?server' |
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42 return matchoutput('cvs --version 2>&1', re) and not has_msys() |
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43 |
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44 def has_darcs(): |
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45 return matchoutput('darcs --version', r'2\.[2-9]', True) |
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46 |
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47 def has_mtn(): |
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48 return matchoutput('mtn --version', r'monotone', True) and not matchoutput( |
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49 'mtn --version', r'monotone 0\.', True) |
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50 |
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51 def has_eol_in_paths(): |
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52 try: |
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53 fd, path = tempfile.mkstemp(dir='.', prefix=tempprefix, suffix='\n\r') |
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54 os.close(fd) |
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55 os.remove(path) |
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56 return True |
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57 except (IOError, OSError): |
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58 return False |
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59 |
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60 def has_executablebit(): |
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61 try: |
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62 EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH |
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63 fh, fn = tempfile.mkstemp(dir='.', prefix=tempprefix) |
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64 try: |
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65 os.close(fh) |
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66 m = os.stat(fn).st_mode & 0777 |
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67 new_file_has_exec = m & EXECFLAGS |
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68 os.chmod(fn, m ^ EXECFLAGS) |
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69 exec_flags_cannot_flip = ((os.stat(fn).st_mode & 0777) == m) |
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70 finally: |
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71 os.unlink(fn) |
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72 except (IOError, OSError): |
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73 # we don't care, the user probably won't be able to commit anyway |
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74 return False |
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75 return not (new_file_has_exec or exec_flags_cannot_flip) |
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76 |
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77 def has_icasefs(): |
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78 # Stolen from mercurial.util |
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79 fd, path = tempfile.mkstemp(dir='.', prefix=tempprefix) |
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80 os.close(fd) |
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81 try: |
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82 s1 = os.stat(path) |
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83 d, b = os.path.split(path) |
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84 p2 = os.path.join(d, b.upper()) |
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85 if path == p2: |
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86 p2 = os.path.join(d, b.lower()) |
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87 try: |
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88 s2 = os.stat(p2) |
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89 return s2 == s1 |
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90 except OSError: |
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91 return False |
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92 finally: |
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93 os.remove(path) |
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94 |
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95 def has_inotify(): |
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96 try: |
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97 import hgext.inotify.linux.watcher |
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98 except ImportError: |
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99 return False |
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100 name = tempfile.mktemp(dir='.', prefix=tempprefix) |
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101 sock = socket.socket(socket.AF_UNIX) |
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102 try: |
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103 sock.bind(name) |
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104 except socket.error, err: |
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105 return False |
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106 sock.close() |
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107 os.unlink(name) |
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108 return True |
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109 |
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110 def has_fifo(): |
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111 if getattr(os, "mkfifo", None) is None: |
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112 return False |
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113 name = tempfile.mktemp(dir='.', prefix=tempprefix) |
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114 try: |
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115 os.mkfifo(name) |
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116 os.unlink(name) |
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117 return True |
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118 except OSError: |
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119 return False |
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120 |
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121 def has_cacheable_fs(): |
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122 from mercurial import util |
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123 |
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124 fd, path = tempfile.mkstemp(dir='.', prefix=tempprefix) |
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125 os.close(fd) |
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126 try: |
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127 return util.cachestat(path).cacheable() |
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128 finally: |
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129 os.remove(path) |
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130 |
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131 def has_lsprof(): |
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132 try: |
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133 import _lsprof |
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134 return True |
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135 except ImportError: |
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136 return False |
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137 |
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138 def has_gettext(): |
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139 return matchoutput('msgfmt --version', 'GNU gettext-tools') |
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140 |
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141 def has_git(): |
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142 return matchoutput('git --version 2>&1', r'^git version') |
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143 |
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144 def has_docutils(): |
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145 try: |
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146 from docutils.core import publish_cmdline |
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147 return True |
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148 except ImportError: |
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149 return False |
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150 |
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151 def getsvnversion(): |
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152 m = matchoutput('svn --version 2>&1', r'^svn,\s+version\s+(\d+)\.(\d+)') |
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153 if not m: |
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154 return (0, 0) |
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155 return (int(m.group(1)), int(m.group(2))) |
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156 |
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157 def has_svn15(): |
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158 return getsvnversion() >= (1, 5) |
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159 |
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160 def has_svn13(): |
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161 return getsvnversion() >= (1, 3) |
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162 |
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163 def has_svn(): |
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164 return matchoutput('svn --version 2>&1', r'^svn, version') and \ |
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165 matchoutput('svnadmin --version 2>&1', r'^svnadmin, version') |
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166 |
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167 def has_svn_bindings(): |
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168 try: |
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169 import svn.core |
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170 version = svn.core.SVN_VER_MAJOR, svn.core.SVN_VER_MINOR |
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171 if version < (1, 4): |
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172 return False |
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173 return True |
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174 except ImportError: |
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175 return False |
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176 |
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177 def has_p4(): |
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178 return (matchoutput('p4 -V', r'Rev\. P4/') and |
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179 matchoutput('p4d -V', r'Rev\. P4D/')) |
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180 |
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181 def has_symlink(): |
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182 if getattr(os, "symlink", None) is None: |
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183 return False |
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184 name = tempfile.mktemp(dir='.', prefix=tempprefix) |
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185 try: |
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186 os.symlink(".", name) |
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187 os.unlink(name) |
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188 return True |
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189 except (OSError, AttributeError): |
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190 return False |
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191 |
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192 def has_hardlink(): |
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193 from mercurial import util |
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194 fh, fn = tempfile.mkstemp(dir='.', prefix=tempprefix) |
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195 os.close(fh) |
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196 name = tempfile.mktemp(dir='.', prefix=tempprefix) |
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197 try: |
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198 try: |
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199 util.oslink(fn, name) |
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200 os.unlink(name) |
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201 return True |
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202 except OSError: |
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203 return False |
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204 finally: |
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205 os.unlink(fn) |
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206 |
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207 def has_tla(): |
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208 return matchoutput('tla --version 2>&1', r'The GNU Arch Revision') |
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209 |
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210 def has_gpg(): |
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211 return matchoutput('gpg --version 2>&1', r'GnuPG') |
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212 |
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213 def has_unix_permissions(): |
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214 d = tempfile.mkdtemp(dir='.', prefix=tempprefix) |
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215 try: |
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216 fname = os.path.join(d, 'foo') |
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217 for umask in (077, 007, 022): |
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218 os.umask(umask) |
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219 f = open(fname, 'w') |
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220 f.close() |
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221 mode = os.stat(fname).st_mode |
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222 os.unlink(fname) |
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223 if mode & 0777 != ~umask & 0666: |
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224 return False |
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225 return True |
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226 finally: |
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227 os.rmdir(d) |
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228 |
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229 def has_pyflakes(): |
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230 return matchoutput("sh -c \"echo 'import re' 2>&1 | pyflakes\"", |
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231 r"<stdin>:1: 're' imported but unused", |
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232 True) |
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233 |
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234 def has_pygments(): |
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235 try: |
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236 import pygments |
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237 return True |
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238 except ImportError: |
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239 return False |
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240 |
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241 def has_outer_repo(): |
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242 # failing for other reasons than 'no repo' imply that there is a repo |
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243 return not matchoutput('hg root 2>&1', |
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244 r'abort: no repository found', True) |
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245 |
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246 def has_ssl(): |
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247 try: |
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248 import ssl |
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249 import OpenSSL |
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250 OpenSSL.SSL.Context |
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251 return True |
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252 except ImportError: |
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253 return False |
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254 |
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255 def has_windows(): |
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256 return os.name == 'nt' |
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257 |
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258 def has_system_sh(): |
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259 return os.name != 'nt' |
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260 |
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261 def has_serve(): |
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262 return os.name != 'nt' # gross approximation |
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263 |
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264 def has_tic(): |
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265 return matchoutput('test -x "`which tic`"', '') |
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266 |
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267 def has_msys(): |
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268 return os.getenv('MSYSTEM') |
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269 |
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270 checks = { |
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271 "true": (lambda: True, "yak shaving"), |
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272 "false": (lambda: False, "nail clipper"), |
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273 "baz": (has_baz, "GNU Arch baz client"), |
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274 "bzr": (has_bzr, "Canonical's Bazaar client"), |
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275 "bzr114": (has_bzr114, "Canonical's Bazaar client >= 1.14"), |
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276 "cacheable": (has_cacheable_fs, "cacheable filesystem"), |
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277 "cvs": (has_cvs, "cvs client/server"), |
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278 "darcs": (has_darcs, "darcs client"), |
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279 "docutils": (has_docutils, "Docutils text processing library"), |
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280 "eol-in-paths": (has_eol_in_paths, "end-of-lines in paths"), |
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281 "execbit": (has_executablebit, "executable bit"), |
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282 "fifo": (has_fifo, "named pipes"), |
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283 "gettext": (has_gettext, "GNU Gettext (msgfmt)"), |
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284 "git": (has_git, "git command line client"), |
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285 "gpg": (has_gpg, "gpg client"), |
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286 "hardlink": (has_hardlink, "hardlinks"), |
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287 "icasefs": (has_icasefs, "case insensitive file system"), |
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288 "inotify": (has_inotify, "inotify extension support"), |
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289 "lsprof": (has_lsprof, "python lsprof module"), |
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290 "mtn": (has_mtn, "monotone client (>= 1.0)"), |
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291 "outer-repo": (has_outer_repo, "outer repo"), |
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292 "p4": (has_p4, "Perforce server and client"), |
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293 "pyflakes": (has_pyflakes, "Pyflakes python linter"), |
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294 "pygments": (has_pygments, "Pygments source highlighting library"), |
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295 "serve": (has_serve, "platform and python can manage 'hg serve -d'"), |
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296 "ssl": (has_ssl, "python >= 2.6 ssl module and python OpenSSL"), |
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297 "svn": (has_svn, "subversion client and admin tools"), |
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298 "svn13": (has_svn13, "subversion client and admin tools >= 1.3"), |
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299 "svn15": (has_svn15, "subversion client and admin tools >= 1.5"), |
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300 "svn-bindings": (has_svn_bindings, "subversion python bindings"), |
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301 "symlink": (has_symlink, "symbolic links"), |
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302 "system-sh": (has_system_sh, "system() uses sh"), |
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303 "tic": (has_tic, "terminfo compiler"), |
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304 "tla": (has_tla, "GNU Arch tla client"), |
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305 "unix-permissions": (has_unix_permissions, "unix-style permissions"), |
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306 "windows": (has_windows, "Windows"), |
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307 "msys": (has_msys, "Windows with MSYS"), |
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308 } |
