Added abort functionality

2 files changed, 24 insertions, 0 deletions

diff --git a/noncore/settings/aqpkg/ipkg.cpp b/noncore/settings/aqpkg/ipkg.cpp
index 407abe9..7afe04f 100644
--- a/noncore/settings/aqpkg/ipkg.cpp
+++ b/noncore/settings/aqpkg/ipkg.cpp
@@ -1,89 +1,90 @@
 /***************************************************************************
                           ipkg.cpp  -  description
                              -------------------
     begin                : Sat Aug 31 2002
     copyright            : (C) 2002 by Andy Qua
     email                : andy.qua@blueyonder.co.uk
  ***************************************************************************/
 
 /***************************************************************************
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
  *   the Free Software Foundation; either version 2 of the License, or     *
  *   (at your option) any later version.                                   *
  *                                                                         *
  ***************************************************************************/
 
 #include <fstream>
 #include <iostream>
 #include <vector>
 using namespace std;
 
 #include <stdio.h>
 #include <unistd.h>
 
 #ifdef QWS
 #include <qpe/qpeapplication.h>
 #else
 #include <qapplication.h>
 #endif
 #include <qdir.h>
 #include <qtextstream.h>
 
 #include <opie/oprocess.h>
 
 #include "utils.h"
 #include "ipkg.h"
 #include "global.h"
 
 Ipkg :: Ipkg()
 {
+    proc = 0;
 }
 
 Ipkg :: ~Ipkg()
 {
 }
 
 // Option is what we are going to do - install, upgrade, download, reinstall
 // package is the package name to install - either a fully qualified path and ipk
 //   file (if stored locally) or just the name of the package (for a network package)
 // packageName is the package name - (for a network package this will be the same as
 //    package parameter)
 // dest is the destination alias (from ipk.conf)
 // destDir is the dir that the destination alias points to (used to link to root)
 // flags is the ipkg options flags
 // dir is the directory to run ipkg in (defaults to "")
 bool Ipkg :: runIpkg( )
 {
     bool ret = false;
     QStringList commands;
 
     QDir::setCurrent( "/tmp" );
 
     if ( runtimeDir != "" )
     {
         commands << "cd ";
         commands << runtimeDir;
         commands << ";";
     }
     commands << "ipkg" << "-force-defaults";
 
     // only set the destination for an install operation
     if ( option == "install" )
         commands << "-dest" << destination;
 
 
     if ( option != "update" && option != "download" )
     {
         if ( flags & FORCE_DEPENDS )
             commands << "-force-depends";
         if ( flags & FORCE_REINSTALL  )
             commands << "-force-reinstall";
         if ( flags & FORCE_REMOVE )
             commands << "-force-removal-of-essential-packages";
         if ( flags & FORCE_OVERWRITE )
             commands << "-force-overwrite";
         if ( flags & VERBOSE_WGET )
             commands << "-verbose_wget";
 
@@ -92,96 +93,99 @@ bool Ipkg :: runIpkg( )
         // if destDir is NOT /
         if ( flags & MAKE_LINKS )
         {
             // If destDir == / turn off make links as package is being insalled
             // to root already.
             if ( destDir == "/" )
                 flags ^= MAKE_LINKS;
         }
     }
     
 #ifdef X86
     commands << "-f";
     commands << IPKG_CONF;
 #endif
 
 
     if ( option == "reinstall" )
         commands << "install";
     else
         commands << option;
     if ( package != "" )
         commands << package;
 
 
     if ( package != "" )
         emit outputText( QString( "Dealing with package " ) + package );
 
     qApp->processEvents();
 
     // If we are removing packages and make links option is selected
     // create the links
     if ( option == "remove" || option == "reinstall" )
     {
         createLinks = false;
         if ( flags & MAKE_LINKS )
         {
             emit outputText( QString( "Removing symbolic links...\n" ) );
             linkPackage( Utils::getPackageNameFromIpkFilename( package ), destination, destDir );
             emit outputText( QString( " " ) );
         }
     }
     
     // Execute command
     dependantPackages = new QList<QString>;
     dependantPackages->setAutoDelete( true );
 
     ret = executeIpkgCommand( commands, option );
 
+    if ( aborted )
+        return false;
+
     if ( option == "install" || option == "reinstall" )
     {
         // If we are not removing packages and make links option is selected
         // create the links
         createLinks = true;
         if ( flags & MAKE_LINKS )
         {
             emit outputText( " " );
             emit outputText( QString( "Creating symbolic links for " )+ package );
 
             linkPackage( Utils::getPackageNameFromIpkFilename( package ), destination, destDir );
 
             // link dependant packages that were installed with this release
             QString *pkg;
             for ( pkg = dependantPackages->first(); pkg != 0; pkg = dependantPackages->next() )
             {
                 if ( *pkg == package )
                     continue;
                 emit outputText( " " );
                 emit outputText( QString( "Creating symbolic links for " )+ (*pkg) );
                 linkPackage( Utils::getPackageNameFromIpkFilename( *pkg ), destination, destDir );
             }
         }
     }
 
     delete dependantPackages;
 
     // Finally, if we are removing a package, remove its entry from the <destdir>/usr/lib/ipkg/status file
     // to workaround an ipkg bug which stops reinstall to a different location
     if ( option == "remove" )
         removeStatusEntry();
 
 
     emit outputText( "Finished" );
     emit outputText( "" );
     return ret;
 
 }
 
 void Ipkg :: removeStatusEntry()
 {
     QString statusFile = destDir;
     if ( statusFile.right( 1 ) != "/" )
         statusFile += "/";
     statusFile += "usr/lib/ipkg/status";
     QString outStatusFile = statusFile + ".tmp";
 
     emit outputText( "" );
@@ -211,161 +215,179 @@ void Ipkg :: removeStatusEntry()
     vector<QString> lines;
     do
     {
         in.getline( line, 1000 );
         if ( in.eof() )
             continue;
 
         k[0] = '\0';
         v[0] = '\0';
 
         sscanf( line, "%[^:]: %[^\n]", k, v );
         key = k;
         value = v;
         key = key.stripWhiteSpace();
         value = value.stripWhiteSpace();
         if ( key == "Package" && value == package )
         {
             // Ignore all lines up to next empty
             do
             {
                 in.getline( line, 1000 );
                 if ( in.eof() || QString( line ).stripWhiteSpace() == "" )
                     continue;
             } while ( !in.eof() && QString( line ).stripWhiteSpace() != "" );
         }
 
         lines.push_back( QString( line ) );
 //        out << line << endl;
     } while ( !in.eof() );
 
     // Write lines out
     vector<QString>::iterator it;
     for ( it = lines.begin() ; it != lines.end() ; ++it )
     {
         cout << "Writing " << (const char *)(*it) << endl;
         out << (const char *)(*it) << endl;
     }
     
     in.close();
     out.close();
 
     // Remove old status file and put tmp stats file in its place
     remove( statusFile );
     rename( outStatusFile, statusFile );
 }
 
 int Ipkg :: executeIpkgCommand( QStringList &cmd, const QString option )
 {
+    // If one is already running - should never be but just to be safe
+    if ( proc )
+    {
+        delete proc;
+        proc = 0;
+    }
+    
     // OK we're gonna use OProcess to run this thing
     proc = new OProcess();
+    aborted = false;
+
 
     // Connect up our slots
     connect(proc, SIGNAL(processExited(OProcess *)),
             this, SLOT( processFinished()));
 
     connect(proc, SIGNAL(receivedStdout(OProcess *, char *, int)),
             this, SLOT(commandStdout(OProcess *, char *, int)));
 
     connect(proc, SIGNAL(receivedStderr(OProcess *, char *, int)),
             this, SLOT(commandStderr(OProcess *, char *, int)));
     
     for ( QStringList::Iterator it = cmd.begin(); it != cmd.end(); ++it )
     {
          qDebug( "%s ", (*it).latin1() );
          *proc << (*it).latin1();
     }
     cout << endl;
 
     // Start the process going
     finished = false;
     if(!proc->start(OProcess::NotifyOnExit, OProcess::All))
     {
         emit outputText( QString( "Couldn't start ipkg process" ) );
         qDebug( "Couldn't start ipkg process!" );
     }
 
     // Now wait for it to finish
     while ( !finished )
         qApp->processEvents();
 }
 
 void Ipkg::commandStdout(OProcess*, char *buffer, int buflen)
 {
     qDebug("received stdout %d bytes", buflen);
 
     QString lineStr = buffer;
     if ( lineStr[buflen-1] == '\n' )
         buflen --;
     lineStr = lineStr.left( buflen );
     emit outputText( lineStr );
     qDebug(lineStr);
     buffer[0] = '\0';
 }
 
 void Ipkg::commandStderr(OProcess*, char *buffer, int buflen)
 {
     qDebug("received stderrt %d bytes", buflen);
 
     QString lineStr = buffer;
     if ( lineStr[buflen-1] == '\n' )
         buflen --;
     lineStr=lineStr.left( buflen );
     emit outputText( lineStr );
     buffer[0] = '\0';
 }
 
 void Ipkg::processFinished()
 {
     delete proc;
+    proc = 0;
     finished = true;
 }
 
 
+void Ipkg :: abort()
+{
+    if ( proc )
+    {
+        proc->kill();
+        aborted = true;
+    }
+}
 
 /*
 int Ipkg :: executeIpkgCommand( QString &cmd, const QString option )
 {
     FILE *fp = NULL;
     char line[130];
     QString lineStr, lineStrOld;
     int ret = false;
 
     fp = popen( (const char *) cmd, "r");
     if ( fp == NULL )
     {
         cout << "Couldn't execute " << cmd << "! err = " << fp << endl;
         QString text;
         text.sprintf( "Couldn't execute %s! See stdout for error code", (const char *)cmd );
         emit outputText( text );
     }
     else
     {
         while ( fgets( line, sizeof line, fp) != NULL )
         {
             lineStr = line;
             lineStr=lineStr.left( lineStr.length()-1 );
 
             if ( lineStr != lineStrOld )
             {
                 //See if we're finished
                 if ( option == "install" || option == "reinstall" )
                 {
                     // Need to keep track of any dependant packages that get installed
                     // so that we can create links to them as necessary
                     if ( lineStr.startsWith( "Installing " ) )
                     {
                         int start = lineStr.find( " " ) + 1;
                         int end = lineStr.find( " ", start );
                         QString *package = new QString( lineStr.mid( start, end-start ) );
                         dependantPackages->append( package );
                     }
                 }
 
                 if ( option == "update" )
                 {
                     if (lineStr.contains("Updated list"))
                         ret = true;
                 }
                 else if ( option == "download" )
                 {
                     if (lineStr.contains("Downloaded"))
diff --git a/noncore/settings/aqpkg/ipkg.h b/noncore/settings/aqpkg/ipkg.h
index 25bae59..f08667b 100644
--- a/noncore/settings/aqpkg/ipkg.h
+++ b/noncore/settings/aqpkg/ipkg.h
@@ -14,73 +14,75 @@
  *   (at your option) any later version.                                   *
  *                                                                         *
  ***************************************************************************/
 
 #ifndef IPKG_H
 #define IPKG_H
 
 
 /**
   *@author Andy Qua
   */
 
 #include <qobject.h>
 #include <qstring.h>
 #include <qstringlist.h>
 #include <qlist.h>
 
 #define FORCE_DEPENDS                           0x0001
 #define FORCE_REMOVE                            0x0002
 #define FORCE_REINSTALL                         0x0004
 #define FORCE_OVERWRITE                         0x0008
 #define MAKE_LINKS                              0x0010
 #define VERBOSE_WGET                            0x0020
 
 class OProcess;
 
 class Ipkg : public QObject
 {
     Q_OBJECT
 public:
     Ipkg();
     ~Ipkg();
     bool runIpkg( );
 
     void setOption( const char *opt )               { option = opt; }
     void setPackage( const char *pkg )              { package = pkg; }
     void setDestination( const char *dest )         { destination = dest; }
     void setDestinationDir( const char *dir )       { destDir = dir; }
     void setFlags( int fl )                         { flags = fl; }
     void setRuntimeDirectory( const char *dir )     { runtimeDir = dir; }
 
 signals:
     void outputText( const QString &text );
 
 public slots:
     void commandStdout(OProcess*, char *buffer, int buflen);
     void commandStderr(OProcess*, char *buffer, int buflen);
     void processFinished();
+    void abort();
 
     
 private:
     bool createLinks;
+    bool aborted;
     QString option;
     QString package;
     QString destination;
     QString destDir;
     QString runtimeDir;
     OProcess *proc;
     int flags;
     bool finished;
 
     QList<QString> *dependantPackages;
     
     int executeIpkgCommand( QStringList &cmd, const QString option );
     void removeStatusEntry();
     void linkPackage( const QString &packFileName, const QString &dest, const QString &destDir );
     QStringList* getList( const QString &packageFilename, const QString &destDir );
     void processFileList( const QStringList *fileList, const QString &destDir );
     void processLinkDir( const QString &file, const QString &baseDir, const QString &destDir );
     
 };
 
 #endif