Added version handling

4 files changed, 266 insertions, 12 deletions

diff --git a/noncore/settings/aqpkg/aqpkg.pro b/noncore/settings/aqpkg/aqpkg.pro
index b869f32..99b82a1 100644
--- a/noncore/settings/aqpkg/aqpkg.pro
+++ b/noncore/settings/aqpkg/aqpkg.pro
@@ -32,12 +32,12 @@ SOURCES		= mainwin.cpp \
                   server.cpp \
                   helpwindow.cpp \
                   letterpushbutton.cpp \
-                  inputdlg.cpp
+                  inputdlg.cpp \
+                  version.cpp
         INTERFACES= settings.ui \
                   install.ui \
                   instoptions.ui
         TARGET  = aqpkg
-DESTDIR=$(OPIEDIR)/bin
 INCLUDEPATH += $(OPIEDIR)/include
 DEPENDPATH  += $(OPIEDIR)/include
 LIBS        += -lqpe -lstdc++
diff --git a/noncore/settings/aqpkg/installdlgimpl.cpp b/noncore/settings/aqpkg/installdlgimpl.cpp
index 2ea70e0..b297437 100644
--- a/noncore/settings/aqpkg/installdlgimpl.cpp
+++ b/noncore/settings/aqpkg/installdlgimpl.cpp
@@ -92,7 +92,10 @@ InstallDlgImpl::InstallDlgImpl( vector<InstallData> &packageList, DataManager *d
                 else if ( item.option == "U" || item.option == "R" )
                 {
                         updateList.push_back( item );
-                        upgrade += "   " + item.packageName + "\n";
+            QString type = " (Upgrade)";
+            if ( item.option == "R" )
+                type = " (ReInstall)";
+                        upgrade += "   " + item.packageName + type + "\n";
                 }
         }
 
diff --git a/noncore/settings/aqpkg/networkpkgmgr.cpp b/noncore/settings/aqpkg/networkpkgmgr.cpp
index 3971aea..02e4e73 100644
--- a/noncore/settings/aqpkg/networkpkgmgr.cpp
+++ b/noncore/settings/aqpkg/networkpkgmgr.cpp
@@ -43,6 +43,8 @@ using namespace std;
 
 #include "global.h"
 
+extern int compareVersions( const char *v1, const char *v2 );
+
 NetworkPackageManager::NetworkPackageManager( DataManager *dataManager, QWidget *parent, const char *name)
   : QWidget(parent, name)
 {
@@ -232,8 +234,11 @@ void NetworkPackageManager :: serverSelected( int )
 
             // If a different version of package is available, postfix it with an *
             if ( it->getVersion() != it->getInstalledVersion() )
+            {
+                if ( compareVersions( it->getInstalledVersion(), it->getVersion() ) == 1 )
                     text += "*";
         }
+        }
 
         QCheckListItem *item = new QCheckListItem( packagesList, text, QCheckListItem::CheckBox );
 
@@ -533,20 +538,54 @@ InstallData NetworkPackageManager :: dealWithItem( QCheckListItem *item )
             item.destination = p->getLocalPackage()->getInstalledTo();
         }
 
+        // Now see if version is newer or not
+        int val = compareVersions( p->getInstalledVersion(), p->getVersion() );
+        if ( val == -2 )
+        {
+            // Error - should handle
+        }
+        else if ( val == -1 )
+        {
+            // Version available is older - remove only
+            item.option = "R";
+        }
+        else
+        {
+            QString caption;
+            QString text;
+            QString secondButton;
+            QString secondOption;
+            if ( val == 0 )
+            {
+                // Version available is the same - option to remove or reinstall
+                caption = "Do you wish to remove or reinstall\n%s?";
+                text = "Remove or ReInstall";
+                secondButton = "ReInstall";
+                secondOption = "R";
+            }
+            else if ( val == 1 )
+            {
+                // Version available is newer - option to remove or upgrade
+                caption = "Do you wish to remove or upgrade\n%s?";
+                text = "Remove or Upgrade";
+                secondButton = "Upgrade";
+                secondOption = "U";
+            }
+
         // Sticky option not implemented yet, but will eventually allow
         // the user to say something like 'remove all'
         if ( stickyOption == "" )
         {
             QString msgtext;
-            msgtext.sprintf( "Do you wish to remove or reinstall\n%s?", (const char *)name );
-            switch( QMessageBox::information( this, "Remove or ReInstall",
-                                msgtext, "Remove", "ReInstall" ) )
+                msgtext.sprintf( caption, (const char *)name );
+                switch( QMessageBox::information( this, text,
+                                    msgtext, "Remove", secondButton ) )
             {
                 case 0: // Try again or Enter
                     item.option = "D";
                     break;
                 case 1: // Quit or Escape
-                    item.option = "U";
+                        item.option = secondOption;
                     break;
             }
         }
@@ -554,16 +593,14 @@ InstallData NetworkPackageManager :: dealWithItem( QCheckListItem *item )
         {
 //            item.option = stickyOption;
         }
+        }
+
         
         // Check if we are reinstalling the same version
-        if ( p->getVersion() != p->getInstalledVersion() )
+        if ( item.option != "R" )
            item.recreateLinks = true;
         else
-        {
-            if ( item.option == "U" )
-                item.option = "R";
            item.recreateLinks = false;
-        }
 
         // User hit cancel (on dlg - assume remove)
         return item;
diff --git a/noncore/settings/aqpkg/version.cpp b/noncore/settings/aqpkg/version.cpp
new file mode 100644
index 0000000..e836da1
--- a/dev/null
+++ b/noncore/settings/aqpkg/version.cpp
@@ -0,0 +1,214 @@
+/*
+ * libdpkg - Debian packaging suite library routines
+ * vercmp.c - comparison of version numbers
+ *
+ * Copyright (C) 1995 Ian Jackson <iwj10@cus.cam.ac.uk>
+ *
+ * This 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,
+ * or (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with dpkg; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+
+# define _(Text) Text
+
+class versionrevision
+{
+public:
+    versionrevision()
+    {
+        version = 0;
+    }
+
+    ~versionrevision()
+    {
+        if ( version )
+            delete version;
+    }
+
+    void setVersion( const char *str )
+    {
+        version = new char[(strlen(str)+1)];
+        strcpy( version, str );
+    }
+    
+  unsigned long epoch;
+  char *version;
+  const char *revision;
+  const char *familiar_revision;
+};  
+
+static int verrevcmp(const char *val, const char *ref) 
+{
+  int vc, rc;
+  long vl, rl;
+  const char *vp, *rp;
+
+  if (!val) val= "";
+  if (!ref) ref= "";
+  for (;;) {
+    vp= val;  while (*vp && !isdigit(*vp)) vp++;
+    rp= ref;  while (*rp && !isdigit(*rp)) rp++;
+    for (;;) {
+      vc= val == vp ? 0 : *val++;
+      rc= ref == rp ? 0 : *ref++;
+      if (!rc && !vc) break;
+      if (vc && !isalpha(vc)) vc += 256; /* assumes ASCII character set */
+      if (rc && !isalpha(rc)) rc += 256;
+      if (vc != rc) return vc - rc;
+    }
+    val= vp;
+    ref= rp;
+    vl=0;  if (isdigit(*vp)) vl= strtol(val,(char**)&val,10);
+    rl=0;  if (isdigit(*rp)) rl= strtol(ref,(char**)&ref,10);
+    if (vl != rl) return vl - rl;
+    if (!*val && !*ref) return 0;
+    if (!*val) return -1;
+    if (!*ref) return +1;
+  }
+}
+
+int versioncompare(const struct versionrevision *version,
+                   const struct versionrevision *refversion) 
+{
+  int r;
+
+  if (version->epoch > refversion->epoch) return 1;
+  if (version->epoch < refversion->epoch) return -1;
+  r= verrevcmp(version->version,refversion->version);  if (r) return r;
+  r= verrevcmp(version->revision,refversion->revision); if (r) return r;
+  return verrevcmp(version->familiar_revision,refversion->familiar_revision);
+}
+
+int versionsatisfied3(const struct versionrevision *it,
+                      const struct versionrevision *ref,
+                      const char *op) 
+{
+  int r;
+  r= versioncompare(it,ref);
+  if (strcmp(op, "<=") == 0 || strcmp(op, "<") == 0)
+    return r <= 0;
+  if (strcmp(op, ">=") == 0 || strcmp(op, ">") == 0)
+    return r >= 0;
+  if (strcmp(op, "<<") == 0)
+    return r < 0;
+  if (strcmp(op, ">>") == 0)
+    return r > 0;
+  if (strcmp(op, "=") == 0)
+    return r == 0;
+  fprintf(stderr, "unknown operator: %s", op);
+
+  exit(1);
+}
+
+const char *parseversion(struct versionrevision *rversion, const char *string) 
+{
+  char *hyphen, *colon, *eepochcolon;
+  unsigned long epoch;
+
+  if (!*string) return _("version string is empty");
+  
+  colon= strchr(string,':');
+  if (colon) {
+    epoch= strtoul(string,&eepochcolon,10);
+    if (colon != eepochcolon) return _("epoch in version is not number");
+    if (!*++colon) return _("nothing after colon in version number");
+    string= colon;
+    rversion->epoch= epoch;
+  } else {
+    rversion->epoch= 0;
+  }
+
+  rversion->revision = "";
+  rversion->familiar_revision = "";
+
+  rversion->setVersion( string );
+  hyphen= strrchr(rversion->version,'-');
+  if (hyphen) {
+    *hyphen++= 0;
+    if (strncmp("fam", hyphen, 3) == 0) {
+      rversion->familiar_revision=hyphen+3;
+      hyphen= strrchr(rversion->version,'-');
+      if (hyphen) {
+        *hyphen++= 0;
+        rversion->revision = hyphen;
+      }
+    } else {
+      rversion->revision = hyphen;
+    }
+  }
+/*
+  fprintf(stderr,"Parsed version: %lu, %s, %s, %s\n",
+          rversion->epoch,
+          rversion->version,
+          rversion->revision,
+          rversion->familiar_revision);
+*/  
+  return 0;
+}
+
+int compareVersions( const char *v1, const char *v2 )
+{
+  const char *err;
+  versionrevision ver, ref;
+
+  err = parseversion(&ref, v1);
+  if (err) {
+    fprintf(stderr, "Invalid version `%s': %s\n", v2, err);
+    return -2;
+  }
+
+  err = parseversion(&ver, v2);
+  if (err) {
+    fprintf(stderr, "Invalid version `%s': %s\n", v1, err);
+    return -2;
+  }
+
+  if ( versionsatisfied3( &ver, &ref, "=" ) )
+    return 0;
+  else if ( versionsatisfied3( &ver, &ref, "<" ) )
+    return -1;
+  else
+    return 1;
+}
+
+/*
+int main(int argc, char *argv[]) 
+{
+  const char *err;
+  versionrevision ver, ref;
+
+  if (argc < 4) {
+    fprintf(stderr, "usage: %s: version op refversion\n", argv[0]);
+    return 2;
+  }
+
+  err = parseversion(&ver, argv[1]);
+  if (err) {
+    fprintf(stderr, "Invalid version `%s': %s\n", argv[1], err);
+    return 2;
+  }
+    
+  err = parseversion(&ref, argv[3]);
+  if (err) {
+    fprintf(stderr, "Invalid version `%s': %s\n", argv[3], err);
+    return 2;
+  }
+
+  printf( "Result: %d\n", versionsatisfied3(&ver, &ref, argv[2]) );
+}
+
+*/