mirror of
https://github.com/reactos/reactos.git
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289 lines
6.1 KiB
C++
289 lines
6.1 KiB
C++
////////////////////////////////////////////////////////
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//
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// package.cpp
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//
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// package related functions
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//
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//
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// Maarten Bosma, 09.01.2004
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// maarten.paul@bosma.de
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//
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////////////////////////////////////////////////////////////////////
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#include "package.hpp"
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#include "expat.h"
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#include "log.h"
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int PML_XmlDownload (pTree, const char* url, void* usrdata, XML_StartElementHandler start,
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XML_EndElementHandler end, XML_CharacterDataHandler text=0);
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// expat callback for start of a package tag
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void pack_start (void* usrdata, const char* tag, const char** arg)
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{
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int i, id;
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PACKAGE* pack = (PACKAGE*)usrdata;
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// if the tag is a script tag ...
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if(!strcmp(tag, "scripts"))
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{
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// ... read the arguments
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for (i=0; arg[i]; i+=2)
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{
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if(!strcmp(arg[i], "inst"))
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id = 0;
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else if(!strcmp(arg[i], "update"))
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id = 1;
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else if(!strcmp(arg[i], "uinst"))
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id = 2;
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else if(!strcmp(arg[i], "srcinst"))
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id = 3;
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else
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continue;
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pack->files[id] = new char [strlen(arg[i+1])+1];
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strcpy(pack->files[id], arg[i+1]);
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}
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}
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// ... save the field
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else
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{
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if(!strcmp(tag, "name"))
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pack->field = &pack->name;
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else if(!strcmp(tag, "description"))
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pack->field = &pack->description;
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else if (!strcmp(tag, "depent"))
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{
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pack->depencies.push_back((char*)NULL);
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pack->field = &pack->depencies.back();
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}
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}
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}
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// expat callback for end of a package tag
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void pack_end (void* usrdata, const char* tag)
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{
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PACKAGE* pack = (PACKAGE*)usrdata;
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pack->field = NULL;
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}
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// expat callback for text
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void pack_text (void* usrdata, const char* data, int len)
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{
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PACKAGE* pack = (PACKAGE*)usrdata;
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if(!pack->field)
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return;
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*pack->field = new char[len+1];
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strncpy(*pack->field, data, len);
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(*pack->field)[len] = '\0';
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}
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// The user clicks on a package
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extern "C" int PML_LoadPackage (TREE* tree, int id, PML_SetButton SetButton)
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{
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PACKAGE* pack = &tree->packages[id];
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tree->setButton = SetButton;
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if(SetButton)
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{
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SetButton(1, pack->action);
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SetButton(2, pack->inst); // && pack->action != 0
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SetButton(3, pack->src_inst);
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SetButton(4, pack->update);
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SetButton(5, pack->uninstall);
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}
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// root notes (like network) return here
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if(!pack->path)
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return 1;
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if(!pack->loaded)
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{
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PML_XmlDownload (tree, pack->path, (void*)pack, pack_start, pack_end, pack_text);
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pack->loaded = TRUE;
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}
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return ERR_OK;
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}
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extern "C" int PML_FindItem (TREE* tree, const char* what)
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{
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int i, j;
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bool found;
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// if we have children, same action for them
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for (i=1; (UINT)i<tree->packages.size(); i++)
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{
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found = true;
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for(j=0; (UINT)j<strlen(what); j++)
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{
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if(tolower(what[j]) != tolower(tree->packages[i].name[j]))
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{
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found = false;
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break;
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}
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}
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if(found)
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return i;
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}
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return 0;
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}
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// The user chooses a actions like Install
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extern "C" int PML_SetAction (TREE* tree, int id, int action, PML_SetIcon SetIcon, PML_Ask Ask)
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{
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UINT i;
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int ret = ERR_OK;
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tree->setIcon = SetIcon;
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PACKAGE* pack = &tree->packages[id];
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// if we have children, same action for them
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for (i=0; i<pack->children.size(); i++)
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ret = ret || PML_SetAction(tree, pack->children[i], action, SetIcon, Ask);
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// is the action possible ?
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if(!pack->actions[action])
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return ERR_GENERIC;
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// is it already set
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if(pack->action == action)
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return ERR_OK;
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//
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if(pack->depencies.size() && action)
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{
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UINT count = pack->depencies.size();
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WCHAR buffer[2000], buffer2[200];
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wcscpy(buffer, PML_TransError(ERR_DEP1));
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for (i=0; i<pack->depencies.size(); i++)
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{
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int item = PML_FindItem(tree, pack->depencies[i]);
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if(!item)
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return ERR_GENERIC;
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if(action == tree->packages[item].action)// || tree->packages[item].installed
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{
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count--;
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continue;
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}
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MultiByteToWideChar (CP_ACP, 0, pack->depencies[i], strlen(pack->depencies[i])+1, buffer2, 200);
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wsprintf(buffer, L"%s - %s\n", buffer, buffer2);//
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}
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wcscat(buffer, PML_TransError(ERR_DEP2));
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if(count)
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{
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if(!Ask(buffer))
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return ERR_GENERIC;
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for (i=0; i<pack->depencies.size(); i++)
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{
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int item = PML_FindItem(tree, pack->depencies[i]);
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tree->packages[item].neededBy.push_back(id);
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PML_SetAction(tree, item, action, SetIcon, Ask);
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}
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}
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}
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// load it if it's not loaded yet
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else if (!pack->loaded && pack->path)
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{
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PML_XmlDownload (tree, pack->path, (void*)pack, pack_start, pack_end, pack_text);
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pack->loaded = TRUE;
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return PML_SetAction(tree, id, action, SetIcon, Ask);
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}
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// set the icon
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if(SetIcon && !pack->icon)
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SetIcon(id, action);
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// set the button(s)
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if(tree->setButton && action != 2)
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{
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tree->setButton(1, action);
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//tree->setButton(pack->action+1, action);
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}
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// can't do src install yet
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if(action == 2)
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{
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MessageBox(0, L"Sorry, but source install is not implemented yet.", 0,0);
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return ERR_OK;
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}
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// everything but undoing is done here
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else if (action != 0)
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{
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// since we are setting a action we undo it again
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if(tree->setButton)
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tree->setButton(1, 1);
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//tree->setButton(action+1, 0);
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pack->action = action;
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// root notes (like network) return here
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if(!pack->path)
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return ret;
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// save the name of the corresponding script in a vector
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tree->todo.push_back(pack->files[action-1]);
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}
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// undoing
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else
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{
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for(i=0; i<pack->neededBy.size(); i++)
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{
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if(tree->packages[pack->neededBy[i]].action)
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{
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SetIcon(id, pack->action);
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return ERR_GENERIC;
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}
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}
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// root notes (like network) return here
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if(!pack->path || pack->action==0)
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return ret;
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// erase from todo list
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for(i=0; i<tree->todo.size(); i++)
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if(!strcmp(tree->todo[i], pack->files[pack->action-1])) // look for right entry
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tree->todo.erase(tree->todo.begin()+i); // delete it
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// set action back
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pack->action = 0;
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}
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return ret;
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}
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//
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extern "C" char* PML_GetDescription (TREE* tree, int id)
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{
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PML_LoadPackage(tree, id, NULL);
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return tree->packages[id].description;
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}
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