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// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
/* #####################################################################
cover around the internal solver to be able to run it like an external
##################################################################### */
/*}}}*/
// Include Files /*{{{*/
#include <config.h>
#include <apt-pkg/cachefile.h>
#include <apt-pkg/cacheset.h>
#include <apt-pkg/cmndline.h>
#include <apt-pkg/configuration.h>
#include <apt-pkg/depcache.h>
#include <apt-pkg/edsp.h>
#include <apt-pkg/error.h>
#include <apt-pkg/fileutl.h>
#include <apt-pkg/init.h>
#include <apt-pkg/packagemanager.h>
#include <apt-pkg/pkgcache.h>
#include <apt-pkg/pkgsystem.h>
#include <apt-pkg/prettyprinters.h>
#include <apt-pkg/strutl.h>
#include <apt-private/private-cmndline.h>
#include <apt-private/private-main.h>
#include <apt-private/private-output.h>
#include <cstdio>
#include <iostream>
#include <list>
#include <sstream>
#include <string>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <apti18n.h>
/*}}}*/
static bool ShowHelp(CommandLine &) /*{{{*/
{
std::cout <<
_("Usage: apt-internal-planner\n"
"\n"
"apt-internal-planner is an interface to use the current internal\n"
"installation planner for the APT family like an external one,\n"
"for debugging or the like.\n");
return true;
}
/*}}}*/
APT_NORETURN static void DIE(std::string const &message) { /*{{{*/
std::cerr << "ERROR: " << message << std::endl;
_error->DumpErrors(std::cerr);
exit(EXIT_FAILURE);
}
/*}}}*/
static std::vector<aptDispatchWithHelp> GetCommands() /*{{{*/
{
return {};
}
/*}}}*/
class PMOutput: public pkgPackageManager /*{{{*/
{
FileFd &output;
bool const Debug;
protected:
virtual bool Install(PkgIterator Pkg,std::string) APT_OVERRIDE
{
//std::cerr << "INSTALL: " << APT::PrettyPkg(&Cache, Pkg) << std::endl;
return EDSP::WriteSolutionStanza(output, "Unpack", Cache[Pkg].InstVerIter(Cache));
}
virtual bool Configure(PkgIterator Pkg) APT_OVERRIDE
{
//std::cerr << "CONFIGURE: " << APT::PrettyPkg(&Cache, Pkg) << " " << std::endl;
return EDSP::WriteSolutionStanza(output, "Configure", Cache[Pkg].InstVerIter(Cache));
}
virtual bool Remove(PkgIterator Pkg,bool) APT_OVERRIDE
{
//std::cerr << "REMOVE: " << APT::PrettyPkg(&Cache, Pkg) << " " << std::endl;
return EDSP::WriteSolutionStanza(output, "Remove", Pkg.CurrentVer());
}
public:
PMOutput(pkgDepCache *Cache, FileFd &file) : pkgPackageManager(Cache), output(file),
Debug(_config->FindB("Debug::EDSP::WriteSolution", false))
{}
bool ApplyRequest(std::list<std::pair<std::string,EIPP::PKG_ACTION>> const &actions)
{
for (auto && a: actions)
{
auto const Pkg = Cache.FindPkg(a.first);
if (unlikely(Pkg.end() == true))
continue;
switch (a.second)
{
case EIPP::PKG_ACTION::NOOP:
break;
case EIPP::PKG_ACTION::INSTALL:
case EIPP::PKG_ACTION::REINSTALL:
FileNames[Pkg->ID] = "EIPP";
break;
case EIPP::PKG_ACTION::REMOVE:
break;
}
}
return true;
}
};
/*}}}*/
int main(int argc,const char *argv[]) /*{{{*/
{
// we really don't need anything
DropPrivileges();
CommandLine CmdL;
ParseCommandLine(CmdL, APT_CMD::APT_INTERNAL_PLANNER, &_config, NULL, argc, argv, &ShowHelp, &GetCommands);
// Deal with stdout not being a tty
if (!isatty(STDOUT_FILENO) && _config->FindI("quiet", -1) == -1)
_config->Set("quiet","1");
if (_config->FindI("quiet", 0) < 1)
_config->Set("Debug::EIPP::WriteSolution", true);
_config->Set("APT::System", "Debian APT planner interface");
_config->Set("APT::Planner", "internal");
_config->Set("eipp::scenario", "/nonexistent/stdin");
FileFd output;
if (output.OpenDescriptor(STDOUT_FILENO, FileFd::WriteOnly | FileFd::BufferedWrite, true) == false)
DIE("stdout couldn't be opened");
int const input = STDIN_FILENO;
SetNonBlock(input, false);
EDSP::WriteProgress(0, "Start up planner…", output);
if (pkgInitSystem(*_config,_system) == false)
DIE("System could not be initialized!");
EDSP::WriteProgress(1, "Read request…", output);
if (WaitFd(input, false, 5) == false)
DIE("WAIT timed out in the planner");
std::list<std::pair<std::string,EIPP::PKG_ACTION>> actions;
unsigned int flags;
if (EIPP::ReadRequest(input, actions, flags) == false)
DIE("Parsing the request failed!");
_config->Set("APT::Immediate-Configure", (flags & EIPP::Request::NO_IMMEDIATE_CONFIGURATION) == 0);
_config->Set("APT::Immediate-Configure-All", (flags & EIPP::Request::IMMEDIATE_CONFIGURATION_ALL) != 0);
_config->Set("APT::Force-LoopBreak", (flags & EIPP::Request::ALLOW_TEMPORARY_REMOVE_OF_ESSENTIALS) != 0);
EDSP::WriteProgress(5, "Read scenario…", output);
pkgCacheFile CacheFile;
if (CacheFile.Open(NULL, false) == false)
DIE("Failed to open CacheFile!");
EDSP::WriteProgress(50, "Apply request on scenario…", output);
if (EIPP::ApplyRequest(actions, CacheFile) == false)
DIE("Failed to apply request to depcache!");
EDSP::WriteProgress(60, "Call orderinstall on current scenario…", output);
//_config->Set("Debug::pkgOrderList", true);
//_config->Set("Debug::pkgPackageManager", true);
PMOutput PM(CacheFile, output);
if (PM.ApplyRequest(actions) == false)
DIE("Failed to apply request to packagemanager!");
pkgPackageManager::OrderResult const Res = PM.DoInstallPreFork();
std::ostringstream broken;
switch (Res)
{
case pkgPackageManager::Completed:
EDSP::WriteProgress(100, "Done", output);
break;
case pkgPackageManager::Incomplete:
broken << "Planner could only incompletely plan an installation order!" << std::endl;
_error->DumpErrors(broken, GlobalError::DEBUG);
EDSP::WriteError("pm-incomplete", broken.str(), output);
break;
case pkgPackageManager::Failed:
broken << "Planner failed to find an installation order!" << std::endl;
_error->DumpErrors(broken, GlobalError::DEBUG);
EDSP::WriteError("pm-failed", broken.str(), output);
break;
}
return DispatchCommandLine(CmdL, {});
}
/*}}}*/
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