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more explicit MarkRequired algorithm code
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1// Includes /*{{{*/
2#include <config.h>
3
4#include <apt-pkg/upgrade.h>
5#include <apt-pkg/configuration.h>
6#include <apt-pkg/error.h>
7
8#include <apt-private/private-install.h>
9#include <apt-private/private-cachefile.h>
10#include <apt-private/private-upgrade.h>
11#include <apt-private/private-output.h>
12
13#include <iostream>
14
15#include <apti18n.h>
16 /*}}}*/
17
18// this is actually performing the various upgrade operations
19static bool UpgradeHelper(CommandLine &CmdL, int UpgradeFlags)
20{
21 CacheFile Cache;
22 std::vector<char const *> VolatileCmdL;
23 Cache.GetSourceList()->AddVolatileFiles(CmdL, &VolatileCmdL);
24
25 if (Cache.OpenForInstall() == false || Cache.CheckDeps() == false)
26 return false;
27
28 if(!DoCacheManipulationFromCommandLine(CmdL, VolatileCmdL, Cache, UpgradeFlags))
29 return false;
30
31 return InstallPackages(Cache,true);
32}
33
34// DoDistUpgrade - Automatic smart upgrader /*{{{*/
35// ---------------------------------------------------------------------
36/* Intelligent upgrader that will install and remove packages at will */
37bool DoDistUpgrade(CommandLine &CmdL)
38{
39 return UpgradeHelper(CmdL, APT::Upgrade::ALLOW_EVERYTHING);
40}
41 /*}}}*/
42bool DoUpgrade(CommandLine &CmdL) /*{{{*/
43{
44 if (_config->FindB("APT::Get::Upgrade-Allow-New", false) == true)
45 return DoUpgradeWithAllowNewPackages(CmdL);
46 else
47 return DoUpgradeNoNewPackages(CmdL);
48}
49 /*}}}*/
50// DoUpgradeNoNewPackages - Upgrade all packages /*{{{*/
51// ---------------------------------------------------------------------
52/* Upgrade all packages without installing new packages or erasing old
53 packages */
54bool DoUpgradeNoNewPackages(CommandLine &CmdL)
55{
56 // Do the upgrade
57 return UpgradeHelper(CmdL,
58 APT::Upgrade::FORBID_REMOVE_PACKAGES|
59 APT::Upgrade::FORBID_INSTALL_NEW_PACKAGES);
60}
61 /*}}}*/
62// DoSafeUpgrade - Upgrade all packages with install but not remove /*{{{*/
63bool DoUpgradeWithAllowNewPackages(CommandLine &CmdL)
64{
65 return UpgradeHelper(CmdL, APT::Upgrade::FORBID_REMOVE_PACKAGES);
66}
67 /*}}}*/