| 1 | #!/usr/bin/python3 |
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| 2 | import sys |
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| 3 | import os |
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| 4 | import threading |
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| 5 | import syslog |
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| 6 | import pkgutil |
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| 7 | import lliurexstore.plugins as plugins |
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| 8 | ###### |
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| 9 | #Ver. 1.0 of storeManager.py |
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| 10 | # This class manages the store and the related plugins |
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| 11 | # It's implemented as an action-drived class. |
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| 12 | # There're four(five) main actions and each of them could execute and undeterminated number of subprocess in their respective thread |
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| 13 | # Each of these actions returns EVER a list of dictionaries. |
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| 14 | ##### |
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| 15 | |
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| 16 | class StoreManager: |
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| 17 | def __init__(self,args=()): |
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| 18 | # self.store=appstream.Store() |
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| 19 | self.store=None |
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| 20 | self.relatedActions={ |
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| 21 | 'load':['load'], |
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| 22 | 'search':['search','info','pkginfo'], |
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| 23 | 'list':['list','info','pkginfo'], |
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| 24 | 'list_sections':['list_sections'], |
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| 25 | 'install':['search','info','pkginfo','install'], |
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| 26 | 'remove':['search','info','pkginfo','remove'] |
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| 27 | } |
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| 28 | self.dbg=1 |
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| 29 | self.threads={} #Dict that stores the functions that must execute each action |
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| 30 | self.threadsProgress={} #"" "" "" the progress for each launched thread |
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| 31 | self.threadsRunning={} #"" "" "" the running threads |
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| 32 | self._define_functions_for_threads() #Function that loads the dictionary self.threads |
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| 33 | self.registeredPlugins={} #Dict that have the relation between plugins and actions |
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| 34 | self.registerProcessProgress={} #Dict that stores the progress for each function/parentAction pair |
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| 35 | self.__init_plugins__() #Function that loads the plugins |
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| 36 | self.progressActions={} #Progress of global actions based on average progress of individual processes |
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| 37 | self.result={} #Result of the actions |
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| 38 | self.execute_action('load') #Function that launches the actions |
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| 39 | self.lock=threading.Lock() #locker for functions related to threads (get_progress, is_action_running...) |
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| 40 | # self.log |
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| 41 | #def __init__ |
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| 42 | |
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| 43 | #### |
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| 44 | #Load and register the plugins from plugin dir |
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| 45 | #### |
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| 46 | def __init_plugins__(self): |
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| 47 | package=plugins |
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| 48 | for importer, mod, ispkg in pkgutil.walk_packages(path=package.__path__, prefix=package.__name__+'.',onerror=lambda x: None): |
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| 49 | strImport='from '+mod+' import *' |
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| 50 | try: |
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| 51 | self._debug("Importing "+str(mod)) |
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| 52 | exec (strImport) |
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| 53 | except Exception as e: |
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| 54 | print(str(e)) |
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| 55 | |
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| 56 | for mod in (sys.modules.keys()): |
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| 57 | if 'plugins.' in mod: |
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| 58 | definedActions={} |
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| 59 | pluginNameUp=mod.split('.')[-1] |
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| 60 | pluginName=pluginNameUp.lower() |
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| 61 | self._debug("Initializing "+str(pluginName)) |
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| 62 | try: |
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| 63 | loadedClass=eval(pluginName)() |
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| 64 | definedActions=loadedClass.register() |
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| 65 | except Exception as e: |
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| 66 | print ("Can't initialize "+str(mod)+' '+str(loadedClass)) |
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| 67 | print ("Reason: "+str(e)) |
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| 68 | pass |
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| 69 | |
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| 70 | for action in definedActions.keys(): |
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| 71 | if action not in self.registeredPlugins: |
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| 72 | self.registeredPlugins[action]={} |
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| 73 | self.registeredPlugins[action].update({definedActions[action]:'plugins.'+pluginNameUp+'.'+pluginName}) |
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| 74 | self._debug(str(self.registeredPlugins)) |
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| 75 | #def __init_plugins__ |
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| 76 | |
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| 77 | def set_debug(self,dbg='1'): |
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| 78 | self.dbg=int(dbg) |
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| 79 | self._debug ("Debug enabled") |
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| 80 | #def set_debug |
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| 81 | |
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| 82 | def _debug(self,msg=''): |
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| 83 | if self.dbg==1: |
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| 84 | print ('DEBUG Store: '+msg) |
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| 85 | #def _debug |
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| 86 | |
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| 87 | def _log(self,msg=None): |
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| 88 | if msg: |
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| 89 | syslog.openlog('lliurex-store') |
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| 90 | syslog.syslog(msg) |
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| 91 | #### |
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| 92 | #dict of actions/related functions for threading |
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| 93 | #### |
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| 94 | def _define_functions_for_threads(self): |
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| 95 | self.threads['load']="threading.Thread(target=self._load_Store)" |
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| 96 | self.threads['info']="threading.Thread(target=self._get_App_Info,args=[args])" |
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| 97 | self.threads['pkginfo']="threading.Thread(target=self._get_Extended_App_Info,args=[args])" |
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| 98 | self.threads['search']='threading.Thread(target=self._search_Store,args=[args,action])' |
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| 99 | self.threads['list']='threading.Thread(target=self._search_Store,args=[args,action])' |
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| 100 | self.threads['install']='threading.Thread(target=self._install_remove_App,args=[args,action])' |
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| 101 | self.threads['remove']='threading.Thread(target=self._install_remove_App,args=[args,action])' |
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| 102 | self.threads['list_sections']='threading.Thread(target=self._list_sections,args=[args,action])' |
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| 103 | #def _define_functions_for_threads |
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| 104 | |
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| 105 | #### |
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| 106 | #Launch the appropiate threaded function for the desired action |
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| 107 | #Input: |
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| 108 | # - action to be executed |
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| 109 | # - parms for the action |
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| 110 | #### |
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| 111 | def execute_action(self,action,args=None): |
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| 112 | self._debug("Launching action: "+action) |
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| 113 | if self.is_action_running('load'): |
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| 114 | self._join_action('load') |
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| 115 | if action in self.threads.keys(): |
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| 116 | if self.is_action_running(action): |
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| 117 | #join thread if we're performing the same action |
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| 118 | self._debug("Waiting for current action "+action+" to end") |
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| 119 | self.threadsRunning[action].join() |
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| 120 | try: |
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| 121 | if action in self.progressActions.keys(): |
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| 122 | self.progressActions[action]=0 |
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| 123 | self.progressActions[action]=0 |
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| 124 | self.threadsRunning[action]=eval(self.threads[action]) |
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| 125 | self.threadsRunning[action].start() |
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| 126 | self._debug("Thread "+str(self.threadsRunning[action])+" for action "+action+" launched") |
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| 127 | except Exception as e: |
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| 128 | self._debug("Can't launch thread for action: "+action) |
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| 129 | self._debug("Reason: "+str(e)) |
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| 130 | pass |
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| 131 | else: |
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| 132 | self._debug("No function associated with action "+action) |
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| 133 | #def execute_action |
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| 134 | |
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| 135 | #### |
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| 136 | #Launch the appropiate class function |
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| 137 | #Input: |
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| 138 | # - class action to be executed |
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| 139 | # - parms for the action |
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| 140 | # - parent action that demands the execution |
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| 141 | #Output |
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| 142 | # - The class method to execute |
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| 143 | #### |
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| 144 | def _execute_class_method(self,action,parms=None,launchedby=None): |
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| 145 | exeFunction=None |
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| 146 | if not parms: |
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| 147 | parms="*" |
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| 148 | if action in self.registeredPlugins: |
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| 149 | self._debug("Plugin for "+action+": "+self.registeredPlugins[action][parms]) |
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| 150 | # exeFunction=eval(self.pluginMod+'.'+self.registeredPlugins[action][parms]+"()") |
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| 151 | exeFunction=eval(self.registeredPlugins[action][parms]+"()") |
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| 152 | self._registerProcessProgress(action,exeFunction,launchedby) |
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| 153 | else: |
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| 154 | self._debug("No plugin for action: "+action) |
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| 155 | |
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| 156 | return (exeFunction) |
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| 157 | #def _execute_class_method |
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| 158 | |
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| 159 | ### |
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| 160 | #Tell if a a action is running |
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| 161 | #Input: |
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| 162 | # - action to monitorize |
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| 163 | #Output: |
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| 164 | # - status true/false |
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| 165 | ### |
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| 166 | def is_action_running(self,action=None): |
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| 167 | status=False |
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| 168 | if action: |
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| 169 | if action in self.threadsRunning: |
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| 170 | if self.threadsRunning[action].is_alive(): |
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| 171 | status=True |
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| 172 | else: |
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| 173 | if action in self.relatedActions.keys(): |
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| 174 | for relatedAction in self.relatedActions[action]: |
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| 175 | if relatedAction in self.threadsRunning.keys(): |
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| 176 | if self.threadsRunning[relatedAction].is_alive(): |
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| 177 | status=True |
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| 178 | break |
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| 179 | # self._debug(action+" running: "+str(status)) |
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| 180 | else: |
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| 181 | if (threading.active_count()-1): |
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| 182 | status=True |
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| 183 | # self._debug("Running: "+str(threading.active_count()) + " threads") |
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| 184 | return(status) |
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| 185 | #def is_action_running |
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| 186 | |
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| 187 | #### |
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| 188 | #Joins an action till finish |
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| 189 | #Input: |
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| 190 | # - action to join |
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| 191 | #### |
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| 192 | def _join_action(self,action): |
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| 193 | self._debug("Joining action: "+action) |
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| 194 | try: |
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| 195 | self.threadsRunning[action].join() |
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| 196 | except Exception as e: |
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| 197 | self._debug("Unable to join thread for: "+action) |
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| 198 | self._debug("Reason: "+ str(e)) |
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| 199 | finally: |
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| 200 | if action in self.threadsRunning.keys(): |
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| 201 | del(self.threadsRunning[action]) |
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| 202 | #def _join_action |
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| 203 | |
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| 204 | #### |
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| 205 | #Register the method and action/parentAction pair in the progress dict |
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| 206 | #Input: |
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| 207 | # - action launched |
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| 208 | # - function (a reference to the function) |
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| 209 | # - parentAction that owns the action (if any) |
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| 210 | #### |
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| 211 | def _registerProcessProgress(self,action,function,parentAction=None): |
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| 212 | if action in self.registerProcessProgress.keys(): |
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| 213 | self._debug("Appended process for action :"+action +" and function: "+str(function)) |
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| 214 | self.registerProcessProgress[action].append(function) |
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| 215 | else: |
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| 216 | self._debug("Registered process for action :"+action+" and function: "+str(function)) |
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| 217 | self.registerProcessProgress[action]=[function] |
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| 218 | if parentAction: |
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| 219 | self._debug("Registered process for Parent Action: "+action+"-"+parentAction+" and function: "+str(function)) |
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| 220 | if parentAction in self.threadsProgress.keys(): |
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| 221 | self.threadsProgress[parentAction].update({action:function}) |
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| 222 | else: |
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| 223 | self.threadsProgress[parentAction]={action:function} |
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| 224 | #def _registerProcessProgress |
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| 225 | |
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| 226 | #### |
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| 227 | #Get the progress of the executed actions |
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| 228 | #Input |
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| 229 | # - action or none if we want all of the progress |
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| 230 | #Output: |
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| 231 | # - Dict of results indexed by actions |
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| 232 | #### |
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| 233 | def get_progress(self,action=None): |
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| 234 | progress={'search':0,'list':0,'install':0,'remove':0,'load':0,'list_sections':0} |
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| 235 | actionList=[] |
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| 236 | if action and action in self.registerProcessProgress: |
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| 237 | actionList=[action] |
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| 238 | else: |
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| 239 | actionList=self.registerProcessProgress.keys() |
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| 240 | self.lock.acquire() #prevent that any thread attempts to change the iterator |
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| 241 | for parentAction in self.relatedActions.keys(): |
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| 242 | if self.is_action_running(parentAction): |
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| 243 | for action in actionList: |
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| 244 | if parentAction in self.threadsProgress.keys(): |
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| 245 | # self._debug(str(len(self.threadsProgress[parentAction]))+" Threads for action "+parentAction+": "+str(self.threadsProgress[parentAction])) |
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| 246 | acumProgress=0 |
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| 247 | for threadfunction in self.threadsProgress[parentAction]: |
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| 248 | function=self.threadsProgress[parentAction][threadfunction] |
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| 249 | # self._debug(str(function)+" "+ str(threadfunction) + " "+parentAction) |
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| 250 | acumProgress=acumProgress+function.progress |
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| 251 | # self._debug("Acum for process "+parentAction+": "+str(acumProgress)) |
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| 252 | |
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| 253 | count=len(self.relatedActions[parentAction]) |
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| 254 | acumprogress=round(acumProgress/count,0) |
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| 255 | # self._debug("Assign result for action" +action) |
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| 256 | self.progressActions[parentAction]=round(acumProgress/count,0) |
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| 257 | progress[parentAction]=round(acumProgress/count,0) |
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| 258 | else: |
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| 259 | #put a 100% just in case |
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| 260 | if parentAction in self.progressActions.keys(): |
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| 261 | # if self.progressActions[parentAction]: |
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| 262 | # self.progressActions[parentAction]=100 |
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| 263 | self.progressActions[parentAction]=100 |
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| 264 | self.lock.release() |
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| 265 | # self._debug("Progress :"+str(progress)) |
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| 266 | return(self.progressActions) |
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| 267 | #def get_progress |
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| 268 | |
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| 269 | #### |
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| 270 | #Gets the result of an action |
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| 271 | #Input: |
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| 272 | # - action |
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| 273 | #Output: |
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| 274 | # - Dict of results indexed by actions |
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| 275 | #### |
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| 276 | def get_result(self,action=None): |
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| 277 | self.lock.acquire() #Prevent changes on results from threads |
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| 278 | result={} |
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| 279 | if action==None: |
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| 280 | result=self.result |
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| 281 | else: |
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| 282 | if self.is_action_running(action): |
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| 283 | self._join_action(action) |
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| 284 | result[action]=None |
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| 285 | if action in self.result: |
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| 286 | result[action]=self.result[action] |
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| 287 | self.lock.release() |
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| 288 | return(result) |
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| 289 | #def get_result |
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| 290 | |
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| 291 | #### |
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| 292 | #Loads the store |
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| 293 | #### |
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| 294 | def _load_Store(self): |
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| 295 | action='load' |
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| 296 | loadFunction=self._execute_class_method(action) |
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| 297 | self.store=loadFunction.execute_action(action) |
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| 298 | #def _load_Store |
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| 299 | |
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| 300 | #### |
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| 301 | #Loads the info related to one app |
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| 302 | #Input: |
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| 303 | # - List of App objects |
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| 304 | #Output: |
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| 305 | # - Dict with the related info |
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| 306 | #### |
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| 307 | def _get_App_Info(self,applist,launchedby=None): |
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| 308 | action='info' |
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| 309 | infoFunction=self._execute_class_method(action,None,launchedby) |
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| 310 | applistInfo=infoFunction.execute_action(self.store,action,applist) |
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| 311 | return(applistInfo) |
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| 312 | #def _get_App_Info |
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| 313 | |
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| 314 | #### |
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| 315 | #Loads the extended info related to one app (slower) |
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| 316 | #Input: |
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| 317 | # - Dict off Apps (as returned by _get_app_info) |
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| 318 | #Output: |
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| 319 | # - Dict with the related info |
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| 320 | #### |
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| 321 | def _get_Extended_App_Info(self,applistInfo,launchedby=None,fullsearch=True): |
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| 322 | #Check if there's any plugin for the distinct type of packages |
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| 323 | action='pkginfo' |
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| 324 | typeDict={} |
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| 325 | for appInfo in applistInfo: |
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| 326 | package_type=self._check_package_type(appInfo) |
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| 327 | if package_type in typeDict: |
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| 328 | typeDict[package_type].append(appInfo) |
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| 329 | else: |
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| 330 | typeDict[package_type]=[appInfo] |
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| 331 | for package_type in typeDict: |
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| 332 | self._debug("Checking plugin for "+action+ " "+package_type) |
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| 333 | if package_type in self.registeredPlugins[action]: |
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| 334 | #Only search deb's full info if there's only one package |
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| 335 | if package_type=='deb' and (len(typeDict[package_type])!=1 or fullsearch==False): |
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| 336 | continue |
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| 337 | pkgInfoFunction=self._execute_class_method(action,package_type,launchedby) |
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| 338 | pkgInfoFunction.execute_action(action,typeDict[package_type]) |
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| 339 | return(applistInfo) |
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| 340 | #def _get_Extended_App_Info |
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| 341 | |
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| 342 | def _list_sections(self,searchItem='',action='list_sections',launchedby=None): |
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| 343 | result={} |
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| 344 | self._debug("Retrieving all sections") |
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| 345 | if action in self.registeredPlugins.keys(): |
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| 346 | self._debug("Plugin for generic search: "+self.registeredPlugins[action]['*']) |
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| 347 | finder=self.registeredPlugins[action][('*')] |
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| 348 | searchFunction=eval(self.pluginMod+'.'+finder+"()") |
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| 349 | result=searchFunction.execute_action(self.store,action,searchItem) |
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| 350 | else: |
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| 351 | print("No plugin for action "+action) |
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| 352 | self.result[action]=result |
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| 353 | self._debug("Sections: "+str(self.result[action])) |
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| 354 | |
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| 355 | #### |
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| 356 | #Search the store |
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| 357 | #Input: |
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| 358 | # - string search |
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| 359 | #Output: |
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| 360 | # - List of dicts with all the info |
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| 361 | #### |
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| 362 | def _search_Store(self,searchItem='',action='search',fullsearch=True,launchedby=None): |
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| 363 | applist={} |
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| 364 | aux_applist=[] |
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| 365 | if action=='list': |
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| 366 | try: |
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| 367 | searchItem=' '.join(searchItem) |
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| 368 | except: |
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| 369 | searchItem='' |
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| 370 | if action=='list_sections': |
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| 371 | searchItem='' |
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| 372 | if (searchItem in self.registeredPlugins[action]): |
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| 373 | self._debug("Plugin for search "+ searchItem +": "+self.registeredPlugins[action][searchItem]) |
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| 374 | finder=self.registeredPlugins[action][searchItem] |
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| 375 | else: |
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| 376 | self._debug("Plugin for generic search: "+self.registeredPlugins[action]['*']) |
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| 377 | finder=self.registeredPlugins[action][('*')] |
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| 378 | searchFunction=eval(finder+"()") |
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| 379 | if not launchedby: |
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| 380 | launchedby=action |
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| 381 | self._registerProcessProgress(action,searchFunction,launchedby) |
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| 382 | aux_applist=searchFunction.execute_action(self.store,action,searchItem) |
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| 383 | #1.- Get appstream metadata (faster) |
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| 384 | partialAction='info' |
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| 385 | applist=self._get_App_Info(aux_applist,launchedby) |
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| 386 | self._debug("Add result for "+partialAction) |
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| 387 | self.result[partialAction]=applist |
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| 388 | #2.- Get rest of metadata (slower) |
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| 389 | partialAction='pkginfo' |
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| 390 | applist=self._get_Extended_App_Info(applist,launchedby,fullsearch) |
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| 391 | realAction=action |
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| 392 | if launchedby: |
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| 393 | realAction=launchedby |
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| 394 | self._debug("Assigned results of "+action+" to "+realAction) |
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| 395 | if (len(applist)): |
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| 396 | self.result[realAction]=applist |
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| 397 | return_msg=True |
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| 398 | else: |
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| 399 | notfound='' |
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| 400 | for item in searchItem: |
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| 401 | notfound=' '.join(searchItem) |
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| 402 | self.result[realAction]=[{notfound:" not found"}] |
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| 403 | return_msg=False |
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| 404 | return(return_msg) |
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| 405 | #def _search_Store |
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| 406 | |
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| 407 | #### |
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| 408 | #Install or remove an app |
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| 409 | #Input: |
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| 410 | # - String with the app name |
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| 411 | #Output: |
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| 412 | # - Result of the operation |
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| 413 | #### |
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| 414 | def _install_remove_App(self,appName,action='install',launchedby=None): |
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| 415 | self._debug("Attempting to "+action +" "+appName) |
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| 416 | self._log("Attempting to "+action +" "+appName) |
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| 417 | result={} |
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| 418 | return_msg=False |
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| 419 | if (self._search_Store(appName,'search',False,action)): |
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| 420 | applistInfo=self.result[action] |
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| 421 | typeDict={} |
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| 422 | #Check if package is installed if we want to remove it or vice versa |
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| 423 | for appInfo in applistInfo: |
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| 424 | if (action=='install' and appInfo['status']=='installed') or (action=='remove' and appInfo['status']=='available'): |
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| 425 | if action=='remove': |
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| 426 | self.result[action]=[{appInfo['package']:"Package not installed"}] |
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| 427 | else: |
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| 428 | self.result[action]=[{appInfo['package']:"Package already installed"}] |
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| 429 | return_msg=False |
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| 430 | typeDict={} |
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| 431 | break |
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| 432 | |
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| 433 | package_type=self._check_package_type(appInfo) |
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| 434 | if package_type in typeDict: |
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| 435 | typeDict[package_type].append(appInfo) |
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| 436 | else: |
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| 437 | typeDict[package_type]=[appInfo] |
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| 438 | |
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| 439 | for package_type in typeDict: |
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| 440 | self._debug("Checking plugin for "+action+ " "+package_type) |
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| 441 | if package_type in self.registeredPlugins[action]: |
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| 442 | installFunction=self._execute_class_method(action,package_type,action) |
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| 443 | result=installFunction.execute_action(action,typeDict[package_type]) |
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| 444 | self.result[action]=result |
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| 445 | return_msg=True |
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| 446 | |
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| 447 | self._log("Result "+action +": "+str(self.result[action])) |
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| 448 | return(return_msg) |
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| 449 | #def install_App |
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| 450 | |
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| 451 | #### |
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| 452 | #Check the package type |
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| 453 | #Input: |
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| 454 | # - AppInfo dict (element of the list returned by _get_app_info) |
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| 455 | #Output: |
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| 456 | # - String with the type (deb, sh, zmd...) |
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| 457 | #### |
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| 458 | def _check_package_type(self,appInfo): |
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| 459 | #Standalone installers must have the subcategory "installer" |
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| 460 | #Zomandos must have the subcategory "Zomando" |
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| 461 | self._debug("Checking package type for app "+appInfo['name']) |
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| 462 | if "Zomando" in appInfo['categories']: |
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| 463 | return_msg="zmd" |
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| 464 | else: |
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| 465 | if "Installer" in appInfo['categories']: |
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| 466 | return_msg="sh" |
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| 467 | else: |
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| 468 | return_msg="deb" |
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| 469 | return(return_msg) |
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| 470 | #def _check_package_type |
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