From 7a948ec719ecc020c2337fe3f41c5fc42699e2c1 Mon Sep 17 00:00:00 2001
From: David Kalnischkies <kalnischkies@gmail.com>
Date: Wed, 26 Jun 2013 17:37:57 +0200
Subject: Version 3 for DPkg::Pre-Install-Pkgs with MultiArch info

Adds on top of Version 2 to all displayed version numbers the
architecture as well as the MultiArch flag for consumption by the hooks.

Most of the time the architecture will be the same for both versions
displayed, but packages might change from "all" to "any" (or back)
between versions so we can't display the architecture for packages.

Pseudo-Format for Version 3:
<name> <version> <arch> <m-a-flag> <compare> <version> <arch> <m-a-flag>

Examples:
stuff - - none < 1 amd64 none **CONFIGURE**
libsame 1 i386 same < 2 i386 same **CONFIGURE**
stuff 2 i386 none > 1 i386 none **CONFIGURE**
libsame 2 i386 same > - - none **REMOVE**
toolkit 1 all foreign > - - none **REMOVE**

Closes: #712116
---
 apt-pkg/deb/dpkgpm.cc | 71 ++++++++++++++++++++++++++++++++++++---------------
 1 file changed, 50 insertions(+), 21 deletions(-)

(limited to 'apt-pkg/deb/dpkgpm.cc')

diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc
index 3bc31dc37..fb0473535 100644
--- a/apt-pkg/deb/dpkgpm.cc
+++ b/apt-pkg/deb/dpkgpm.cc
@@ -238,15 +238,23 @@ bool pkgDPkgPM::Remove(PkgIterator Pkg,bool Purge)
    return true;
 }
 									/*}}}*/
-// DPkgPM::SendV2Pkgs - Send version 2 package info			/*{{{*/
+// DPkgPM::SendPkgInfo - Send info for install-pkgs hook		/*{{{*/
 // ---------------------------------------------------------------------
 /* This is part of the helper script communication interface, it sends
    very complete information down to the other end of the pipe.*/
 bool pkgDPkgPM::SendV2Pkgs(FILE *F)
 {
-   fprintf(F,"VERSION 2\n");
-   
-   /* Write out all of the configuration directives by walking the 
+   return SendPkgsInfo(F, 2);
+}
+bool pkgDPkgPM::SendPkgsInfo(FILE * const F, unsigned int const &Version)
+{
+   // This version of APT supports only v3, so don't sent higher versions
+   if (Version <= 3)
+      fprintf(F,"VERSION %u\n", Version);
+   else
+      fprintf(F,"VERSION 3\n");
+
+   /* Write out all of the configuration directives by walking the
       configuration tree */
    const Configuration::Item *Top = _config->Tree(0);
    for (; Top != 0;)
@@ -280,30 +288,51 @@ bool pkgDPkgPM::SendV2Pkgs(FILE *F)
       pkgDepCache::StateCache &S = Cache[I->Pkg];
       
       fprintf(F,"%s ",I->Pkg.Name());
-      // Current version
-      if (I->Pkg->CurrentVer == 0)
-	 fprintf(F,"- ");
+
+      // Current version which we are going to replace
+      pkgCache::VerIterator CurVer = I->Pkg.CurrentVer();
+      if (CurVer.end() == true && (I->Op == Item::Remove || I->Op == Item::Purge))
+	 CurVer = FindNowVersion(I->Pkg);
+
+      else if (CurVer.end() == true)
+      {
+	 if (Version <= 2)
+	    fprintf(F, "- ");
+	 else
+	    fprintf(F, "- - none ");
+      }
       else
-	 fprintf(F,"%s ",I->Pkg.CurrentVer().VerStr());
-      
-      // Show the compare operator
-      // Target version
+      {
+	 fprintf(F, "%s ", CurVer.VerStr());
+	 if (Version >= 3)
+	    fprintf(F, "%s %s ", CurVer.Arch(), CurVer.MultiArchType());
+      }
+
+      // Show the compare operator between current and install version
       if (S.InstallVer != 0)
       {
+	 pkgCache::VerIterator const InstVer = S.InstVerIter(Cache);
 	 int Comp = 2;
-	 if (I->Pkg->CurrentVer != 0)
-	    Comp = S.InstVerIter(Cache).CompareVer(I->Pkg.CurrentVer());
+	 if (CurVer.end() == false)
+	    Comp = InstVer.CompareVer(CurVer);
 	 if (Comp < 0)
 	    fprintf(F,"> ");
-	 if (Comp == 0)
+	 else if (Comp == 0)
 	    fprintf(F,"= ");
-	 if (Comp > 0)
+	 else if (Comp > 0)
 	    fprintf(F,"< ");
-	 fprintf(F,"%s ",S.InstVerIter(Cache).VerStr());
+	 fprintf(F, "%s ", InstVer.VerStr());
+	 if (Version >= 3)
+	    fprintf(F, "%s %s ", InstVer.Arch(), InstVer.MultiArchType());
       }
       else
-	 fprintf(F,"> - ");
-      
+      {
+	 if (Version <= 2)
+	    fprintf(F, "> - ");
+	 else
+	    fprintf(F, "> - - none ");
+      }
+
       // Show the filename/operation
       if (I->Op == Item::Install)
       {
@@ -313,9 +342,9 @@ bool pkgDPkgPM::SendV2Pkgs(FILE *F)
 	 else
 	    fprintf(F,"%s\n",I->File.c_str());
       }      
-      if (I->Op == Item::Configure)
+      else if (I->Op == Item::Configure)
 	 fprintf(F,"**CONFIGURE**\n");
-      if (I->Op == Item::Remove ||
+      else if (I->Op == Item::Remove ||
 	  I->Op == Item::Purge)
 	 fprintf(F,"**REMOVE**\n");
       
@@ -404,7 +433,7 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf)
 	 }
       }
       else
-	 SendV2Pkgs(F);
+	 SendPkgsInfo(F, Version);
 
       fclose(F);
       
-- 
cgit v1.2.3