1 | # |
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2 | # RTEMS Tools Project (http://www.rtems.org/) |
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3 | # Copyright 2010-2016 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 | from __future__ import print_function |
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27 | |
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28 | import log |
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29 | import os |
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30 | import shutil |
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31 | import stat |
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32 | import string |
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33 | |
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34 | import error |
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35 | |
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36 | windows = os.name == 'nt' |
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37 | |
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38 | def host(path): |
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39 | if path is not None: |
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40 | while '//' in path: |
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41 | path = path.replace('//', '/') |
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42 | if windows: |
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43 | if len(path) > 2 and \ |
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44 | path[0] == '/' and path[2] == '/' and \ |
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45 | (path[1] in string.ascii_lowercase or \ |
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46 | path[1] in string.ascii_uppercase): |
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47 | path = '%s:%s' % (path[1], path[2:]) |
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48 | path = path.replace('/', '\\') |
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49 | if not path.startswith('\\\\?\\') and len(path) > 254: |
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50 | path = '\\\\?\\' + path |
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51 | return path |
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52 | |
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53 | def shell(path): |
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54 | if path is not None: |
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55 | if windows: |
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56 | if path.startswith('\\\\?\\'): |
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57 | path = path[4:] |
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58 | if len(path) > 1 and path[1] == ':': |
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59 | path = '/%s%s' % (path[0], path[2:]) |
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60 | path = path.replace('\\', '/') |
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61 | while '//' in path: |
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62 | path = path.replace('//', '/') |
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63 | return path |
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64 | |
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65 | def basename(path): |
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66 | return shell(os.path.basename(path)) |
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67 | |
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68 | def dirname(path): |
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69 | return shell(os.path.dirname(path)) |
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70 | |
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71 | def join(path, *args): |
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72 | path = shell(path) |
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73 | for arg in args: |
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74 | if len(path): |
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75 | path += '/' + shell(arg) |
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76 | else: |
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77 | path = shell(arg) |
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78 | return shell(path) |
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79 | |
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80 | def abspath(path): |
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81 | return shell(os.path.abspath(host(path))) |
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82 | |
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83 | def splitext(path): |
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84 | root, ext = os.path.splitext(host(path)) |
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85 | return shell(root), ext |
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86 | |
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87 | def exists(paths): |
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88 | if type(paths) == list: |
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89 | results = [] |
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90 | for p in paths: |
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91 | results += [os.path.exists(host(p))] |
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92 | return results |
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93 | return os.path.exists(host(paths)) |
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94 | |
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95 | def isdir(path): |
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96 | return os.path.isdir(host(path)) |
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97 | |
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98 | def isfile(path): |
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99 | return os.path.isfile(host(path)) |
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100 | |
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101 | def isabspath(path): |
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102 | return path[0] == '/' |
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103 | |
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104 | def iswritable(path): |
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105 | return os.access(host(path), os.W_OK) |
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106 | |
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107 | def ispathwritable(path): |
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108 | path = host(path) |
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109 | while len(path) != 0: |
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110 | if os.path.exists(path): |
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111 | return iswritable(path) |
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112 | path = os.path.dirname(path) |
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113 | return False |
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114 | |
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115 | def mkdir(path): |
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116 | path = host(path) |
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117 | if exists(path): |
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118 | if not isdir(path): |
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119 | raise error.general('path exists and is not a directory: %s' % (path)) |
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120 | else: |
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121 | if windows: |
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122 | try: |
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123 | os.makedirs(host(path)) |
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124 | except IOError as err: |
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125 | raise error.general('cannot make directory: %s' % (path)) |
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126 | except OSError as err: |
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127 | raise error.general('cannot make directory: %s' % (path)) |
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128 | except WindowsError as err: |
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129 | raise error.general('cannot make directory: %s' % (path)) |
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130 | else: |
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131 | try: |
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132 | os.makedirs(host(path)) |
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133 | except IOError as err: |
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134 | raise error.general('cannot make directory: %s' % (path)) |
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135 | except OSError as err: |
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136 | raise error.general('cannot make directory: %s' % (path)) |
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137 | |
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138 | def removeall(path): |
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139 | # |
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140 | # Perform the removal of the directory tree manually so we can |
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141 | # make sure on Windows the files and correctly encoded to avoid |
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142 | # the size limit. |
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143 | # |
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144 | path = host(path) |
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145 | for root, dirs, files in os.walk(path, topdown = False): |
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146 | for name in files: |
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147 | file = host(os.path.join(root, name)) |
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148 | if not os.path.islink(file) and not os.access(file, os.W_OK): |
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149 | os.chmod(file, stat.S_IWUSR) |
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150 | os.unlink(file) |
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151 | for name in dirs: |
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152 | dir = host(os.path.join(root, name)) |
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153 | if os.path.islink(dir): |
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154 | os.unlink(dir) |
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155 | else: |
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156 | if not os.access(dir, os.W_OK): |
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157 | os.chmod(dir, stat.S_IWUSR) |
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158 | os.rmdir(dir) |
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159 | if not os.path.islink(path) and not os.access(path, os.W_OK): |
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160 | os.chmod(path, stat.S_IWUSR) |
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161 | if os.path.islink(path): |
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162 | os.unlink(path) |
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163 | else: |
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164 | os.rmdir(path) |
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165 | |
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166 | def expand(name, paths): |
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167 | l = [] |
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168 | for p in paths: |
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169 | l += [join(p, name)] |
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170 | return l |
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171 | |
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172 | def copy(src, dst): |
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173 | hsrc = host(src) |
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174 | hdst = host(dst) |
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175 | try: |
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176 | shutil.copy(hsrc, hdst) |
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177 | except OSError as why: |
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178 | if windows: |
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179 | if WindowsError is not None and isinstance(why, WindowsError): |
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180 | pass |
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181 | else: |
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182 | raise error.general('copying tree: %s -> %s: %s' % (hsrc, hdst, str(why))) |
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183 | |
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184 | def copy_tree(src, dst): |
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185 | trace = False |
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186 | |
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187 | hsrc = host(src) |
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188 | hdst = host(dst) |
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189 | |
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190 | if os.path.exists(hsrc): |
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191 | names = os.listdir(hsrc) |
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192 | else: |
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193 | names = [] |
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194 | |
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195 | if trace: |
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196 | print('path.copy_tree:') |
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197 | print(' src: %s' % (src)) |
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198 | print(' hsrc: %s' % (hsrc)) |
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199 | print(' dst: %s' % (dst)) |
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200 | print(' hdst: %s' % (hdst)) |
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201 | print(' names: %r' % (names)) |
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202 | |
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203 | if not os.path.isdir(hdst): |
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204 | if trace: |
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205 | print(' mkdir: %s' % (hdst)) |
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206 | try: |
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207 | os.makedirs(hdst) |
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208 | except OSError as why: |
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209 | raise error.general('copying tree: cannot create target directory %s: %s' % \ |
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210 | (hdst, str(why))) |
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211 | |
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212 | for name in names: |
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213 | srcname = host(os.path.join(hsrc, name)) |
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214 | dstname = host(os.path.join(hdst, name)) |
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215 | try: |
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216 | if os.path.islink(srcname): |
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217 | linkto = os.readlink(srcname) |
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218 | if os.path.exists(dstname): |
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219 | if os.path.islink(dstname): |
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220 | dstlinkto = os.readlink(dstname) |
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221 | if linkto != dstlinkto: |
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222 | log.warning('copying tree: link does not match: %s -> %s' % \ |
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223 | (dstname, dstlinkto)) |
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224 | os.remove(dstname) |
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225 | else: |
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226 | log.warning('copying tree: destination is not a link: %s' % \ |
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227 | (dstname)) |
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228 | os.remove(dstname) |
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229 | else: |
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230 | os.symlink(linkto, dstname) |
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231 | elif os.path.isdir(srcname): |
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232 | copy_tree(srcname, dstname) |
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233 | else: |
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234 | shutil.copy2(host(srcname), host(dstname)) |
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235 | except shutil.Error as err: |
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236 | raise error.general('copying tree: %s -> %s: %s' % \ |
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237 | (hsrc, hdst, str(err))) |
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238 | except EnvironmentError as why: |
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239 | raise error.general('copying tree: %s -> %s: %s' % \ |
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240 | (srcname, dstname, str(why))) |
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241 | try: |
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242 | shutil.copystat(hsrc, hdst) |
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243 | except OSError as why: |
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244 | if windows: |
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245 | if WindowsError is not None and isinstance(why, WindowsError): |
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246 | pass |
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247 | else: |
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248 | raise error.general('copying tree: %s -> %s: %s' % (hsrc, hdst, str(why))) |
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249 | |
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250 | if __name__ == '__main__': |
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251 | print(host('/a/b/c/d-e-f')) |
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252 | print(host('//a/b//c/d-e-f')) |
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253 | print(shell('/w/x/y/z')) |
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254 | print(basename('/as/sd/df/fg/me.txt')) |
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255 | print(dirname('/as/sd/df/fg/me.txt')) |
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256 | print(join('/d', 'g', '/tyty/fgfg')) |
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257 | windows = True |
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258 | print(host('/a/b/c/d-e-f')) |
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259 | print(host('//a/b//c/d-e-f')) |
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260 | print(shell('/w/x/y/z')) |
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261 | print(shell('w:/x/y/z')) |
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262 | print(basename('x:/sd/df/fg/me.txt')) |
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263 | print(dirname('x:/sd/df/fg/me.txt')) |
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264 | print(join('s:/d/e\\f/g', '/h', '/tyty/zxzx', '\\mm\\nn/p')) |
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