From 851b6a097165af4d51c0db01b5e05256e5006896 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 11:00:48 +0200
Subject: Adding upstream version 2.6.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 cmdline/apt-sortpkgs.cc | 166 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 166 insertions(+)
 create mode 100644 cmdline/apt-sortpkgs.cc

(limited to 'cmdline/apt-sortpkgs.cc')

diff --git a/cmdline/apt-sortpkgs.cc b/cmdline/apt-sortpkgs.cc
new file mode 100644
index 0000000..5198254
--- /dev/null
+++ b/cmdline/apt-sortpkgs.cc
@@ -0,0 +1,166 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+/* ######################################################################
+   
+   APT Sort Packages - Program to sort Package and Source files
+
+   This program is quite simple, it just sorts the package files by
+   package and sorts the fields inside by the internal APT sort order.
+   Input is taken from a named file and sent to stdout.
+   
+   ##################################################################### */
+									/*}}}*/
+// Include Files							/*{{{*/
+#include <config.h>
+
+#include <apt-pkg/cmndline.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/error.h>
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/init.h>
+#include <apt-pkg/pkgsystem.h>
+#include <apt-pkg/strutl.h>
+#include <apt-pkg/tagfile-keys.h>
+#include <apt-pkg/tagfile.h>
+
+#include <apt-private/private-cmndline.h>
+#include <apt-private/private-main.h>
+
+#include <algorithm>
+#include <iostream>
+#include <memory>
+#include <string>
+#include <vector>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <apti18n.h>
+									/*}}}*/
+
+using namespace std;
+
+struct PkgName								/*{{{*/
+{
+   string Name;
+   string Ver;
+   string Arch;
+   unsigned long Offset;
+   unsigned long Length;
+   
+   inline int Compare3(const PkgName &x) const
+   {
+      int A = stringcasecmp(Name,x.Name);
+      if (A == 0)
+      {
+	 A = stringcasecmp(Ver,x.Ver);
+	 if (A == 0)
+	    A = stringcasecmp(Arch,x.Arch);
+      }
+      return A;
+   }
+   
+   bool operator <(const PkgName &x) const {return Compare3(x) < 0;};
+   bool operator >(const PkgName &x) const {return Compare3(x) > 0;};
+   bool operator ==(const PkgName &x) const {return Compare3(x) == 0;};
+};
+									/*}}}*/
+// DoIt - Sort a single file						/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+static bool DoIt(string InFile)
+{
+   FileFd Fd(InFile,FileFd::ReadOnly);
+   pkgTagFile Tags(&Fd);
+   if (_error->PendingError() == true)
+      return false;
+   
+   // Parse.
+   vector<PkgName> List;
+   pkgTagSection Section;
+   unsigned long Largest = 0;
+   unsigned long Offset = Tags.Offset();
+   bool Source = _config->FindB("APT::SortPkgs::Source",false);
+   while (Tags.Step(Section) == true)
+   {
+      PkgName Tmp;
+      
+      /* Fetch the name, auto-detecting if this is a source file or a 
+         package file */
+      Tmp.Name = Section.Find(pkgTagSection::Key::Package).to_string();
+      Tmp.Ver = Section.Find(pkgTagSection::Key::Version).to_string();
+      Tmp.Arch = Section.Find(pkgTagSection::Key::Architecture).to_string();
+      
+      if (Tmp.Name.empty() == true)
+	 return _error->Error(_("Unknown package record!"));
+      
+      Tmp.Offset = Offset;
+      Tmp.Length = Section.size();
+      if (Largest < Tmp.Length)
+	 Largest = Tmp.Length;
+      
+      List.push_back(Tmp);
+      
+      Offset = Tags.Offset();
+   }
+   if (_error->PendingError() == true)
+      return false;
+   
+   // Sort it
+   sort(List.begin(),List.end());
+
+   const char **Order = TFRewritePackageOrder;
+   if (Source == true)
+      Order = TFRewriteSourceOrder;
+
+   // Emit
+   FileFd stdoutfd;
+   stdoutfd.OpenDescriptor(STDOUT_FILENO, FileFd::WriteOnly, false);
+   auto const Buffer = std::unique_ptr<unsigned char[]>(new unsigned char[Largest+1]);
+   for (vector<PkgName>::iterator I = List.begin(); I != List.end(); ++I)
+   {
+      // Read in the Record.
+      if (Fd.Seek(I->Offset) == false || Fd.Read(Buffer.get(),I->Length) == false)
+	 return false;
+
+      Buffer[I->Length] = '\n';
+      if (Section.Scan((char *)Buffer.get(),I->Length+1) == false)
+	 return _error->Error("Internal error, failed to scan buffer");
+
+      // Sort the section
+      if (Section.Write(stdoutfd, Order) == false || stdoutfd.Write("\n", 1) == false)
+	 return _error->Error("Internal error, failed to sort fields");
+   }
+   return true;
+}
+									/*}}}*/
+static bool ShowHelp(CommandLine &)					/*{{{*/
+{
+   std::cout <<
+    _("Usage: apt-sortpkgs [options] file1 [file2 ...]\n"
+      "\n"
+      "apt-sortpkgs is a simple tool to sort package information files.\n"
+      "By default it sorts by binary package information, but the -s option\n"
+      "can be used to switch to source package ordering instead.\n");
+   return true;
+}
+									/*}}}*/
+static std::vector<aptDispatchWithHelp> GetCommands()			/*{{{*/
+{
+   return {
+      {nullptr, nullptr, nullptr}
+   };
+}
+									/*}}}*/
+int main(int argc,const char *argv[])					/*{{{*/
+{
+   CommandLine CmdL;
+   ParseCommandLine(CmdL, APT_CMD::APT_SORTPKG, &_config, &_system, argc, argv, &ShowHelp, &GetCommands);
+
+   // Match the operation
+   for (unsigned int I = 0; I != CmdL.FileSize(); I++)
+      if (DoIt(CmdL.FileList[I]) == false)
+	 break;
+
+   return DispatchCommandLine(CmdL, {});
+}
+									/*}}}*/
-- 
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