mark pkg(All|Dist)Upgrade as deprecated

The comment above their definition marks them already as such, so this
is only a formalisation of the deprecation and fixes the occurances we
have in our own code together with removing a magic number.

Git-Dch: Ignore

apt-pkg/upgrade.cc

@@ -282,7 +282,12 @@ bool pkgMinimizeUpgrade(pkgDepCache &Cache)
 // APT::Upgrade::Upgrade - Upgrade using a specific strategy		/*{{{*/
 bool APT::Upgrade::Upgrade(pkgDepCache &Cache, int mode, OpProgress * const Progress)
 {
-   if (mode == 0)
+#if __GNUC__ >= 4
+	// the deprecated methods will become our privates, so that is fine
+	#pragma GCC diagnostic push
+	#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+#endif
+   if (mode == ALLOW_EVERYTHING)
       return pkgDistUpgrade(Cache, Progress);
    else if ((mode & ~FORBID_REMOVE_PACKAGES) == 0)
       return pkgAllUpgradeWithNewPackages(Cache, Progress);
@@ -290,7 +295,9 @@ bool APT::Upgrade::Upgrade(pkgDepCache &Cache, int mode, OpProgress * const Prog
       return pkgAllUpgradeNoNewPackages(Cache, Progress);
    else
       _error->Error("pkgAllUpgrade called with unsupported mode %i", mode);
-
+#if __GNUC__ >= 4
+	#pragma GCC diagnostic pop
+#endif
    return false;
 }
 									/*}}}*/

apt-pkg/upgrade.h

@@ -11,6 +11,7 @@
 #define PKGLIB_UPGRADE_H
 
 #include <stddef.h>
+#include <apt-pkg/macros.h>
 
 class pkgDepCache;
 class OpProgress;
@@ -19,6 +20,7 @@ namespace APT {
    namespace Upgrade {
       // FIXME: make this "enum class UpgradeMode {" once we enable c++11
       enum UpgradeMode {
+	 ALLOW_EVERYTHING = 0,
          FORBID_REMOVE_PACKAGES = 1,
          FORBID_INSTALL_NEW_PACKAGES = 2
       };
@@ -27,8 +29,8 @@ namespace APT {
 }
 
 // please use APT::Upgrade::Upgrade() instead
-bool pkgDistUpgrade(pkgDepCache &Cache, OpProgress * const Progress = NULL);
-bool pkgAllUpgrade(pkgDepCache &Cache, OpProgress * const Progress = NULL);
+APT_DEPRECATED bool pkgDistUpgrade(pkgDepCache &Cache, OpProgress * const Progress = NULL);
+APT_DEPRECATED bool pkgAllUpgrade(pkgDepCache &Cache, OpProgress * const Progress = NULL);
 
 bool pkgMinimizeUpgrade(pkgDepCache &Cache);
 #endif

apt-private/private-install.cc

@@ -619,18 +619,14 @@ bool DoCacheManipulationFromCommandLine(CommandLine &CmdL, CacheFile &Cache,
       if (Fix != NULL)
       {
 	 // Call the scored problem resolver
-	 bool resolver_fail = false;
 	 OpTextProgress Progress(*_config);
 	 bool const distUpgradeMode = strcmp(CmdL.FileList[0], "dist-upgrade") == 0 || strcmp(CmdL.FileList[0], "full-upgrade") == 0;
 
-	 if (UpgradeMode == 0)
-	 {
-	    if (distUpgradeMode == true)
-	       resolver_fail = APT::Upgrade::Upgrade(Cache, 0, &Progress);
-	    else
-	       resolver_fail = Fix->Resolve(true, &Progress);
-	 } else
+	 bool resolver_fail = false;
+	 if (distUpgradeMode == true || UpgradeMode != APT::Upgrade::ALLOW_EVERYTHING)
 	    resolver_fail = APT::Upgrade::Upgrade(Cache, UpgradeMode, &Progress);
+	 else
+	    resolver_fail = Fix->Resolve(true, &Progress);
 
 	 if (resolver_fail == false && Cache->BrokenCount() == 0)
 	    return false;

apt-private/private-upgrade.cc

@@ -33,7 +33,7 @@ static bool UpgradeHelper(CommandLine &CmdL, int UpgradeFlags)
 /* Intelligent upgrader that will install and remove packages at will */
 bool DoDistUpgrade(CommandLine &CmdL)
 {
-   return UpgradeHelper(CmdL, 0);
+   return UpgradeHelper(CmdL, APT::Upgrade::ALLOW_EVERYTHING);
 }
 									/*}}}*/
 bool DoUpgrade(CommandLine &CmdL)					/*{{{*/

cmdline/apt-get.cc

@@ -540,7 +540,7 @@ static bool DoDSelectUpgrade(CommandLine &)
    }
 
    // Now upgrade everything
-   if (pkgAllUpgrade(Cache) == false)
+   if (APT::Upgrade::Upgrade(Cache, APT::Upgrade::FORBID_REMOVE_PACKAGES | APT::Upgrade::FORBID_INSTALL_NEW_PACKAGES) == false)
    {
       ShowBroken(c1out,Cache,false);
       return _error->Error(_("Internal error, problem resolver broke stuff"));

cmdline/apt-internal-solver.cc

@@ -175,10 +175,10 @@ int main(int argc,const char *argv[])					/*{{{*/
 
 	std::string failure;
 	if (upgrade == true) {
-		if (pkgAllUpgrade(CacheFile) == false)
+		if (APT::Upgrade::Upgrade(CacheFile, APT::Upgrade::FORBID_REMOVE_PACKAGES | APT::Upgrade::FORBID_INSTALL_NEW_PACKAGES) == false)
 			failure = "ERR_UNSOLVABLE_UPGRADE";
 	} else if (distUpgrade == true) {
-		if (pkgDistUpgrade(CacheFile) == false)
+		if (APT::Upgrade::Upgrade(CacheFile, APT::Upgrade::ALLOW_EVERYTHING) == false)
 			failure = "ERR_UNSOLVABLE_DIST_UPGRADE";
 	} else if (Fix.Resolve() == false)
 		failure = "ERR_UNSOLVABLE";