Mercurial > mozilla > hg > ProfileManager

annotate profilemanager/manager.py @ 43:49cc40572f46

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test cloning
author Jeff Hammel <jhammel@mozilla.com>
date Thu, 06 May 2010 18:59:48 -0700
parents 232188e7c04c
children 6feee8d04db4
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1 """
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2 manage Mozilla/Firefox profiles
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3 """
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4
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5 import os
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6 import shutil
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7 import string
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8 import ConfigParser
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9 from random import Random
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10 from utils import format_tabular
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11 from ConfigParser import SafeConfigParser as ConfigParser
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12
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13 # Changes to profiles.ini:
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14 # - add a ``backups`` field for each profile:
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15 # Backups = /path/to/backup:1273104310 /path/to/other/backup:1273104355
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16
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17 class ProfileNotFound(Exception):
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18 """
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19 exception when a profile is specified but is not present in a given
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20 .ini file
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21 """
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22
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23 class ProfileManager(object):
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24
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25 def __init__(self, profiles):
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26 """
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27 - profiles: filesystem path to profiles.ini file
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28 """
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29 self.profiles = profiles
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30 self.profile_dir = os.path.abspath(os.path.dirname(profiles))
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31
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32 ### (public) API
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33
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34 def new(self, name, directory=None, hash=True):
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35 """
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36 generate a new clean profile
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37 - name: name of the profile to generate
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38 - directory: where to create the profile [DEFAULT: relative to profiles.ini]
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39 - hash: whether to generate a a random hash tag
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40 """
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41
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42 # path to the profile directory
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43 dirname = name
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44 relative = False
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45 if hash:
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46 dirname = '%s.%s' % (self.hash(), dirname)
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47 if not directory:
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48 directory = self.profile_dir
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49 relative = True
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50 path = os.path.join(directory, dirname)
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51
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52 # create directory
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53 # TODO: (optionally) pre-populate the directory a la Firefox
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54 os.mkdir(path)
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55
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56 # update profiles.ini
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57 self.add(name, relative and dirname or path, relative)
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58
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59 # return the directory name
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60 return path
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61
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62 def remove(self, name, delete=True):
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63 """
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64 remove a profile from profiles.ini
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65 - delete: delete the profile directory as well
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66 """
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67 parser = self.parser()
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68 section = self.section(name, parser)
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69 if section is None:
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70 raise ProfileNotFound('Profile %s not found in %s' % (profile, self.profiles))
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71 if delete: # remove the profile from disk
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72 shutil.rmtree(self.path(name))
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73 parser.remove_section(section)
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74 parser.write(file(self.profiles, 'w'))
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75
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76 def list(self, directories=False):
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77 """
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78 lists the profiles available in the config file
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79 - directories : display the directories
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80 """
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81 profiles = self.profiles_dict()
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82 if not directories:
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83 return sorted(profiles.keys())
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84 return dict([(name, self.path(name)) for name in profiles.keys()])
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85
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86 def clone(self, source, dest, add=True):
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87 """
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88 clones the profile `source` and output to `dest`
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89 - add: add the profile to the profiles.ini file
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90 """
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91 source_path = self.path(source) # fs path of the `from` profile
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92
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93 # dest: fs path to back up to
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94 relative = False
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95 if os.path.sep in dest:
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96 if not os.path.isabs(dest):
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97 dest = os.path.abspath(dest)
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98 dirname = dest
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99 name = os.path.basename(dest)
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100 else:
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101 dirname = name = dest
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102 relative = True
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103 if not os.path.dirname(dest):
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104 dest = '%s.%s' % (self.hash(), dest)
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105 dest = os.path.join(self.profile_dir, dest)
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106
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107
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108 assert name not in self.profiles_dict(), 'Profile "%s" already in %s' % (name, self.profiles)
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109
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110 # update profiles.ini
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111 if add:
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112 self.add(name, dirname, relative)
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113
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114 # copy the files
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115 shutil.copytree(source_path, dest, symlinks=False)
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116
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117 return dest
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118
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119 def backup(self, profile, dest=None):
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120 """
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121 backup the profile
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122 - profile: name of the profile to be backed up
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123 - dest: name of the destination (optional)
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124 """
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125 if dest is None:
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126 dest = '%s.%d.bak' % (profile, int(time.time()))
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127 self.clone(profile, dest, hash=False)
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128 # TODO: add something like
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129 # `Backup=$(profile)s.$(datestamp)s.bak`
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130 # to self.profiles
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131
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132 def backups(self, profile=None):
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133 """
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134 list backups for a given profile, or all profiles if the
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135 profile is not given; returns a list of backups if
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136 profile is given or a dictionary of lists otherwise
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137 """
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138 if profile is None:
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139 # all profiles
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140 retval = {}
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141 return retval
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142 # TODO
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143
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144 def restore(self, profile, date=None, delete=False):
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145 """
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146 restore the profile from a backup
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147 the most recent backup is used unless `date` is given
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148 - date : date to restore from
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149 - delete : delete the backup after restoration
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150 """
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151
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152 # get the possible backups
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153 backups = self.backups(profile)
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154 # TODO: check to see if these all exist (print warnings if not)
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155
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156 # restore the backup over ``profile``
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157
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158 if delete: # delete the backup
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159 # delete the directory
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160 # delete the entry from ``profiles.ini``
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161 # if there are no backups, delete the ``backups`` line
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162 pass #TODO
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163
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164
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165 def merge(self, output, *profiles):
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166 """merge a set of profiles (not trivial!)"""
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167 raise NotImplementedError
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168
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169 ### internal functions
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170
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171 def add(self, profile, path, relative=True):
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172 """
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173 add a profile entry to profiles.ini
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174 """
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175
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176 # ensure name is not already present
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177 assert profile not in self.profiles_dict(), 'Profile "%s" already in %s' % (name, self.profiles)
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178 parser = self.parser()
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179
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180 # find and add the section
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181 ctr = 0
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182 section = 'Profile%d' % ctr # unsure of this naming convention
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183 while section in parser.sections():
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184 ctr += 1
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185 section = 'Profile%d' % ctr
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186 parser.add_section(section)
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187
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188 # add metadata
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189 parser.set(section, 'Name', profile)
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190 parser.set(section, 'IsRelative', '%d' % int(relative))
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191 parser.set(section, 'Path', path)
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192 if not ctr:
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193 parser.set(section, 'Default', '1')
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194
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195 # write the file
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196 parser.write(file(self.profiles, 'w'))
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197
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198
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199 def path(self, profile):
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200 """returns the path to the profile"""
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201 profile = self.profile_dict(profile)
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202 if profile.get('isrelative', None) == '1':
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203 return os.path.join(self.profile_dir, profile['path'])
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204 return profile['path']
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205
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206 def parser(self):
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207 """
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208 return a ConfigParser instance appropriate to profiles.ini
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209 """
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210 parser = ConfigParser()
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211 parser.read(self.profiles)
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212 return parser
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213
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214
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215 def section(self, profile, parser=None):
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216 """
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217 returns the name of the section that a profile is in or None
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218 if not found
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219 """
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220 if parser is None:
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221 parser = self.parser()
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222 for section in parser.sections():
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223 if not parser.has_option(section, 'name'):
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224 continue # not a profile
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225 if parser.get(section, 'name') == profile:
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226 return section
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227
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228 def profile_dict(self, profile):
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229 """
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230 return option dictionary for a single profile
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231 """
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232 parser = self.parser()
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233 section = self.section(profile, parser)
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234 if section is None:
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235 raise ProfileNotFound('Profile %s not found in %s' % (profile, self.profiles))
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236 return dict(parser.items(section))
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237
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238 def profiles_dict(self):
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239 """
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240 return nested dict of all profiles
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241 """
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242 # assumes profiles have unique names
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243 parser = self.parser()
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244 retval = {}
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245 for section in parser.sections():
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246 if section == 'General':
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247 continue
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248 try:
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249 name = parser.get(section, 'name')
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250 except ConfigParser.NoOptionError:
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251 continue
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252 retval[name] = self.profile_dict(name)
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253 return retval
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254
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255
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256 def hash(self):
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257 """
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258 generate a random hash for a new profile
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259 """
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260 population = string.lowercase + string.digits
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261 return ''.join(Random().sample(population, 8))
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262
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263