1 | # |
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2 | # RTEMS Tools Project (http://www.rtems.org/) |
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3 | # Copyright 2010-2012 Chris Johns (chrisj@rtems.org) |
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4 | # All rights reserved. |
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5 | # |
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6 | # This file is part of the RTEMS Tools package in 'rtems-tools'. |
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7 | # |
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8 | # Permission to use, copy, modify, and/or distribute this software for any |
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9 | # purpose with or without fee is hereby granted, provided that the above |
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10 | # copyright notice and this permission notice appear in all copies. |
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11 | # |
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12 | # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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13 | # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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14 | # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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15 | # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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16 | # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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17 | # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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18 | # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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19 | |
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20 | # |
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21 | # Manage paths locally. The internally the path is in Unix or shell format and |
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22 | # we convert to the native format when performing operations at the Python |
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23 | # level. This allows macro expansion to work. |
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24 | # |
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25 | |
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26 | import log |
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27 | import os |
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28 | import shutil |
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29 | import string |
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30 | |
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31 | import error |
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32 | |
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33 | windows = os.name == 'nt' |
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34 | |
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35 | def host(path): |
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36 | if path is not None: |
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37 | while '//' in path: |
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38 | path = path.replace('//', '/') |
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39 | if windows and len(path) > 2: |
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40 | if path[0] == '/' and path[2] == '/' and \ |
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41 | (path[1] in string.ascii_lowercase or \ |
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42 | path[1] in string.ascii_uppercase): |
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43 | path = ('%s:%s' % (path[1], path[2:])).replace('/', '\\') |
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44 | return path |
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45 | |
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46 | def shell(path): |
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47 | if path is not None: |
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48 | if windows and len(path) > 1 and path[1] == ':': |
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49 | path = ('/%s%s' % (path[0], path[2:])).replace('\\', '/') |
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50 | while '//' in path: |
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51 | path = path.replace('//', '/') |
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52 | return path |
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53 | |
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54 | def basename(path): |
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55 | return shell(os.path.basename(path)) |
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56 | |
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57 | def dirname(path): |
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58 | return shell(os.path.dirname(path)) |
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59 | |
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60 | def join(path, *args): |
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61 | path = shell(path) |
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62 | for arg in args: |
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63 | if len(path): |
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64 | path += '/' + shell(arg) |
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65 | else: |
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66 | path = shell(arg) |
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67 | return shell(path) |
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68 | |
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69 | def abspath(path): |
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70 | return shell(os.path.abspath(host(path))) |
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71 | |
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72 | def splitext(path): |
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73 | root, ext = os.path.splitext(host(path)) |
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74 | return shell(root), ext |
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75 | |
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76 | def exists(paths): |
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77 | if type(paths) == list: |
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78 | results = [] |
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79 | for p in paths: |
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80 | results += [os.path.exists(host(p))] |
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81 | return results |
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82 | return os.path.exists(host(paths)) |
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83 | |
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84 | def isdir(path): |
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85 | return os.path.isdir(host(path)) |
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86 | |
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87 | def isfile(path): |
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88 | return os.path.isfile(host(path)) |
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89 | |
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90 | def isabspath(path): |
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91 | return path[0] == '/' |
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92 | |
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93 | def iswritable(path): |
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94 | return os.access(host(path), os.W_OK) |
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95 | |
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96 | def ispathwritable(path): |
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97 | path = host(path) |
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98 | while len(path) != 0: |
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99 | if os.path.exists(path): |
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100 | return iswritable(path) |
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101 | path = os.path.dirname(path) |
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102 | return False |
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103 | |
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104 | def mkdir(path): |
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105 | path = host(path) |
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106 | if exists(path): |
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107 | if not isdir(path): |
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108 | raise error.general('path exists and is not a directory: %s' % (path)) |
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109 | else: |
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110 | if windows: |
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111 | try: |
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112 | os.makedirs(host(path)) |
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113 | except IOError, err: |
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114 | raise error.general('cannot make directory: %s' % (path)) |
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115 | except OSError, err: |
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116 | raise error.general('cannot make directory: %s' % (path)) |
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117 | except WindowsError, err: |
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118 | raise error.general('cannot make directory: %s' % (path)) |
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119 | else: |
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120 | try: |
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121 | os.makedirs(host(path)) |
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122 | except IOError, err: |
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123 | raise error.general('cannot make directory: %s' % (path)) |
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124 | except OSError, err: |
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125 | raise error.general('cannot make directory: %s' % (path)) |
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126 | |
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127 | def removeall(path): |
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128 | |
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129 | def _onerror(function, path, excinfo): |
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130 | print 'removeall error: (%s) %s' % (excinfo, path) |
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131 | |
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132 | path = host(path) |
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133 | shutil.rmtree(path, onerror = _onerror) |
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134 | return |
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135 | |
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136 | def expand(name, paths): |
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137 | l = [] |
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138 | for p in paths: |
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139 | l += [join(p, name)] |
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140 | return l |
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141 | |
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142 | def copy_tree(src, dst): |
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143 | hsrc = host(src) |
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144 | hdst = host(dst) |
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145 | |
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146 | if os.path.exists(src): |
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147 | names = os.listdir(src) |
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148 | else: |
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149 | names = [] |
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150 | |
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151 | if not os.path.isdir(dst): |
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152 | os.makedirs(dst) |
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153 | |
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154 | for name in names: |
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155 | srcname = os.path.join(src, name) |
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156 | dstname = os.path.join(dst, name) |
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157 | try: |
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158 | if os.path.islink(srcname): |
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159 | linkto = os.readlink(srcname) |
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160 | if os.path.exists(dstname): |
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161 | if os.path.islink(dstname): |
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162 | dstlinkto = os.readlink(dstname) |
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163 | if linkto != dstlinkto: |
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164 | log.warning('copying tree: update of link does not match: %s -> %s' % \ |
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165 | (dstname, dstlinkto)) |
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166 | os.remove(dstname) |
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167 | else: |
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168 | log.warning('copying tree: destination is not a link: %s' % \ |
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169 | (dstname)) |
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170 | os.remove(dstname) |
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171 | else: |
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172 | os.symlink(linkto, dstname) |
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173 | elif os.path.isdir(srcname): |
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174 | copy_tree(srcname, dstname) |
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175 | else: |
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176 | shutil.copy2(srcname, dstname) |
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177 | except shutil.Error, err: |
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178 | raise error.general('copying tree: %s -> %s: %s' % (src, dst, str(err))) |
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179 | except EnvironmentError, why: |
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180 | raise error.general('copying tree: %s -> %s: %s' % (srcname, dstname, str(why))) |
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181 | try: |
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182 | shutil.copystat(src, dst) |
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183 | except OSError, why: |
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184 | if windows: |
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185 | if WindowsError is not None and isinstance(why, WindowsError): |
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186 | pass |
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187 | else: |
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188 | raise error.general('copying tree: %s -> %s: %s' % (src, dst, str(why))) |
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189 | |
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190 | if __name__ == '__main__': |
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191 | print host('/a/b/c/d-e-f') |
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192 | print host('//a/b//c/d-e-f') |
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193 | print shell('/w/x/y/z') |
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194 | print basename('/as/sd/df/fg/me.txt') |
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195 | print dirname('/as/sd/df/fg/me.txt') |
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196 | print join('/d', 'g', '/tyty/fgfg') |
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197 | windows = True |
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198 | print host('/a/b/c/d-e-f') |
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199 | print host('//a/b//c/d-e-f') |
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200 | print shell('/w/x/y/z') |
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201 | print shell('w:/x/y/z') |
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202 | print basename('x:/sd/df/fg/me.txt') |
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203 | print dirname('x:/sd/df/fg/me.txt') |
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204 | print join('s:/d/', '/g', '/tyty/fgfg') |
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