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apt/cmdline/apt-get.cc

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// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
// $Id: apt-get.cc,v 1.156 2004/08/28 01:05:16 mdz Exp $
/* ######################################################################
apt-get - Cover for dpkg
This is an allout cover for dpkg implementing a safer front end. It is
based largely on libapt-pkg.
The syntax is different,
apt-get [opt] command [things]
Where command is:
update - Resyncronize the package files from their sources
upgrade - Smart-Download the newest versions of all packages
dselect-upgrade - Follows dselect's changes to the Status: field
and installes new and removes old packages
dist-upgrade - Powerfull upgrader designed to handle the issues with
a new distribution.
install - Download and install a given package (by name, not by .deb)
check - Update the package cache and check for broken packages
clean - Erase the .debs downloaded to /var/cache/apt/archives and
the partial dir too
##################################################################### */
/*}}}*/
// Include Files /*{{{*/
#include <apt-pkg/error.h>
#include <apt-pkg/cmndline.h>
#include <apt-pkg/init.h>
#include <apt-pkg/depcache.h>
#include <apt-pkg/sourcelist.h>
#include <apt-pkg/algorithms.h>
#include <apt-pkg/acquire-item.h>
#include <apt-pkg/strutl.h>
#include <apt-pkg/clean.h>
#include <apt-pkg/srcrecords.h>
#include <apt-pkg/version.h>
#include <apt-pkg/cachefile.h>
#include <apt-pkg/sptr.h>
#include <apt-pkg/versionmatch.h>
#include <config.h>
#include <apti18n.h>
#include "acqprogress.h"
#include <locale.h>
#include <langinfo.h>
#include <fstream>
#include <termios.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/statvfs.h>
#include <signal.h>
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <regex.h>
#include <sys/wait.h>
/*}}}*/
using namespace std;
ostream c0out(0);
ostream c1out(0);
ostream c2out(0);
ofstream devnull("/dev/null");
unsigned int ScreenWidth = 80;
// class CacheFile - Cover class for some dependency cache functions /*{{{*/
// ---------------------------------------------------------------------
/* */
class CacheFile : public pkgCacheFile
{
static pkgCache *SortCache;
static int NameComp(const void *a,const void *b);
public:
pkgCache::Package **List;
void Sort();
bool CheckDeps(bool AllowBroken = false);
bool BuildCaches(bool WithLock = true)
{
OpTextProgress Prog(*_config);
if (pkgCacheFile::BuildCaches(Prog,WithLock) == false)
return false;
return true;
}
bool Open(bool WithLock = true)
{
OpTextProgress Prog(*_config);
if (pkgCacheFile::Open(Prog,WithLock) == false)
return false;
Sort();
return true;
};
bool OpenForInstall()
{
if (_config->FindB("APT::Get::Print-URIs") == true)
return Open(false);
else
return Open(true);
}
CacheFile() : List(0) {};
};
/*}}}*/
// YnPrompt - Yes No Prompt. /*{{{*/
// ---------------------------------------------------------------------
/* Returns true on a Yes.*/
bool YnPrompt(bool Default=true)
{
if (_config->FindB("APT::Get::Assume-Yes",false) == true)
{
c1out << _("Y") << endl;
return true;
}
char response[1024] = "";
cin.getline(response, sizeof(response));
if (!cin)
return false;
if (strlen(response) == 0)
return Default;
regex_t Pattern;
int Res;
Res = regcomp(&Pattern, nl_langinfo(YESEXPR),
REG_EXTENDED|REG_ICASE|REG_NOSUB);
if (Res != 0) {
char Error[300];
regerror(Res,&Pattern,Error,sizeof(Error));
return _error->Error(_("Regex compilation error - %s"),Error);
}
Res = regexec(&Pattern, response, 0, NULL, 0);
if (Res == 0)
return true;
return false;
}
/*}}}*/
// AnalPrompt - Annoying Yes No Prompt. /*{{{*/
// ---------------------------------------------------------------------
/* Returns true on a Yes.*/
bool AnalPrompt(const char *Text)
{
char Buf[1024];
cin.getline(Buf,sizeof(Buf));
if (strcmp(Buf,Text) == 0)
return true;
return false;
}
/*}}}*/
// ShowList - Show a list /*{{{*/
// ---------------------------------------------------------------------
/* This prints out a string of space separated words with a title and
a two space indent line wraped to the current screen width. */
bool ShowList(ostream &out,string Title,string List,string VersionsList)
{
if (List.empty() == true)
return true;
// trim trailing space
int NonSpace = List.find_last_not_of(' ');
if (NonSpace != -1)
{
List = List.erase(NonSpace + 1);
if (List.empty() == true)
return true;
}
// Acount for the leading space
int ScreenWidth = ::ScreenWidth - 3;
out << Title << endl;
string::size_type Start = 0;
string::size_type VersionsStart = 0;
while (Start < List.size())
{
if(_config->FindB("APT::Get::Show-Versions",false) == true &&
VersionsList.size() > 0) {
string::size_type End;
string::size_type VersionsEnd;
End = List.find(' ',Start);
VersionsEnd = VersionsList.find('\n', VersionsStart);
out << " " << string(List,Start,End - Start) << " (" <<
string(VersionsList,VersionsStart,VersionsEnd - VersionsStart) <<
")" << endl;
if (End == string::npos || End < Start)
End = Start + ScreenWidth;
Start = End + 1;
VersionsStart = VersionsEnd + 1;
} else {
string::size_type End;
if (Start + ScreenWidth >= List.size())
End = List.size();
else
End = List.rfind(' ',Start+ScreenWidth);
if (End == string::npos || End < Start)
End = Start + ScreenWidth;
out << " " << string(List,Start,End - Start) << endl;
Start = End + 1;
}
}
return false;
}
/*}}}*/
// ShowBroken - Debugging aide /*{{{*/
// ---------------------------------------------------------------------
/* This prints out the names of all the packages that are broken along
with the name of each each broken dependency and a quite version
description.
The output looks like:
The following packages have unmet dependencies:
exim: Depends: libc6 (>= 2.1.94) but 2.1.3-10 is to be installed
Depends: libldap2 (>= 2.0.2-2) but it is not going to be installed
Depends: libsasl7 but it is not going to be installed
*/
void ShowBroken(ostream &out,CacheFile &Cache,bool Now)
{
out << _("The following packages have unmet dependencies:") << endl;
for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
{
pkgCache::PkgIterator I(Cache,Cache.List[J]);
if (Now == true)
{
if (Cache[I].NowBroken() == false)
continue;
}
else
{
if (Cache[I].InstBroken() == false)
continue;
}
// Print out each package and the failed dependencies
out <<" " << I.Name() << ":";
unsigned Indent = strlen(I.Name()) + 3;
bool First = true;
pkgCache::VerIterator Ver;
if (Now == true)
Ver = I.CurrentVer();
else
Ver = Cache[I].InstVerIter(Cache);
if (Ver.end() == true)
{
out << endl;
continue;
}
for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false;)
{
// Compute a single dependency element (glob or)
pkgCache::DepIterator Start;
pkgCache::DepIterator End;
D.GlobOr(Start,End); // advances D
if (Cache->IsImportantDep(End) == false)
continue;
if (Now == true)
{
if ((Cache[End] & pkgDepCache::DepGNow) == pkgDepCache::DepGNow)
continue;
}
else
{
if ((Cache[End] & pkgDepCache::DepGInstall) == pkgDepCache::DepGInstall)
continue;
}
bool FirstOr = true;
while (1)
{
if (First == false)
for (unsigned J = 0; J != Indent; J++)
out << ' ';
First = false;
if (FirstOr == false)
{
for (unsigned J = 0; J != strlen(End.DepType()) + 3; J++)
out << ' ';
}
else
out << ' ' << End.DepType() << ": ";
FirstOr = false;
out << Start.TargetPkg().Name();
// Show a quick summary of the version requirements
if (Start.TargetVer() != 0)
out << " (" << Start.CompType() << " " << Start.TargetVer() << ")";
/* Show a summary of the target package if possible. In the case
of virtual packages we show nothing */
pkgCache::PkgIterator Targ = Start.TargetPkg();
if (Targ->ProvidesList == 0)
{
out << ' ';
pkgCache::VerIterator Ver = Cache[Targ].InstVerIter(Cache);
if (Now == true)
Ver = Targ.CurrentVer();
if (Ver.end() == false)
{
if (Now == true)
ioprintf(out,_("but %s is installed"),Ver.VerStr());
else
ioprintf(out,_("but %s is to be installed"),Ver.VerStr());
}
else
{
if (Cache[Targ].CandidateVerIter(Cache).end() == true)
{
if (Targ->ProvidesList == 0)
out << _("but it is not installable");
else
out << _("but it is a virtual package");
}
else
out << (Now?_("but it is not installed"):_("but it is not going to be installed"));
}
}
if (Start != End)
out << _(" or");
out << endl;
if (Start == End)
break;
Start++;
}
}
}
}
/*}}}*/
// ShowNew - Show packages to newly install /*{{{*/
// ---------------------------------------------------------------------
/* */
void ShowNew(ostream &out,CacheFile &Cache)
{
/* Print out a list of packages that are going to be installed extra
to what the user asked */
string List;
string VersionsList;
for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
{
pkgCache::PkgIterator I(Cache,Cache.List[J]);
if (Cache[I].NewInstall() == true) {
List += string(I.Name()) + " ";
VersionsList += string(Cache[I].CandVersion) + "\n";
}
}
ShowList(out,_("The following NEW packages will be installed:"),List,VersionsList);
}
/*}}}*/
// ShowDel - Show packages to delete /*{{{*/
// ---------------------------------------------------------------------
/* */
void ShowDel(ostream &out,CacheFile &Cache)
{
/* Print out a list of packages that are going to be removed extra
to what the user asked */
string List;
string VersionsList;
for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
{
pkgCache::PkgIterator I(Cache,Cache.List[J]);
if (Cache[I].Delete() == true)
{
if ((Cache[I].iFlags & pkgDepCache::Purge) == pkgDepCache::Purge)
List += string(I.Name()) + "* ";
else
List += string(I.Name()) + " ";
VersionsList += string(Cache[I].CandVersion)+ "\n";
}
}
ShowList(out,_("The following packages will be REMOVED:"),List,VersionsList);
}
/*}}}*/
// ShowKept - Show kept packages /*{{{*/
// ---------------------------------------------------------------------
/* */
void ShowKept(ostream &out,CacheFile &Cache)
{
string List;
string VersionsList;
for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
{
pkgCache::PkgIterator I(Cache,Cache.List[J]);
// Not interesting
if (Cache[I].Upgrade() == true || Cache[I].Upgradable() == false ||
I->CurrentVer == 0 || Cache[I].Delete() == true)
continue;
List += string(I.Name()) + " ";
VersionsList += string(Cache[I].CurVersion) + " => " + Cache[I].CandVersion + "\n";
}
ShowList(out,_("The following packages have been kept back:"),List,VersionsList);
}
/*}}}*/
// ShowUpgraded - Show upgraded packages /*{{{*/
// ---------------------------------------------------------------------
/* */
void ShowUpgraded(ostream &out,CacheFile &Cache)
{
string List;
string VersionsList;
for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
{
pkgCache::PkgIterator I(Cache,Cache.List[J]);
// Not interesting
if (Cache[I].Upgrade() == false || Cache[I].NewInstall() == true)
continue;
List += string(I.Name()) + " ";
VersionsList += string(Cache[I].CurVersion) + " => " + Cache[I].CandVersion + "\n";
}
ShowList(out,_("The following packages will be upgraded:"),List,VersionsList);
}
/*}}}*/
// ShowDowngraded - Show downgraded packages /*{{{*/
// ---------------------------------------------------------------------
/* */
bool ShowDowngraded(ostream &out,CacheFile &Cache)
{
string List;
string VersionsList;
for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
{
pkgCache::PkgIterator I(Cache,Cache.List[J]);
// Not interesting
if (Cache[I].Downgrade() == false || Cache[I].NewInstall() == true)
continue;
List += string(I.Name()) + " ";
VersionsList += string(Cache[I].CurVersion) + " => " + Cache[I].CandVersion + "\n";
}
return ShowList(out,_("The following packages will be DOWNGRADED:"),List,VersionsList);
}
/*}}}*/
// ShowHold - Show held but changed packages /*{{{*/
// ---------------------------------------------------------------------
/* */
bool ShowHold(ostream &out,CacheFile &Cache)
{
string List;
string VersionsList;
for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
{
pkgCache::PkgIterator I(Cache,Cache.List[J]);
if (Cache[I].InstallVer != (pkgCache::Version *)I.CurrentVer() &&
I->SelectedState == pkgCache::State::Hold) {
List += string(I.Name()) + " ";
VersionsList += string(Cache[I].CurVersion) + " => " + Cache[I].CandVersion + "\n";
}
}
return ShowList(out,_("The following held packages will be changed:"),List,VersionsList);
}
/*}}}*/
// ShowEssential - Show an essential package warning /*{{{*/
// ---------------------------------------------------------------------
/* This prints out a warning message that is not to be ignored. It shows
all essential packages and their dependents that are to be removed.
It is insanely risky to remove the dependents of an essential package! */
bool ShowEssential(ostream &out,CacheFile &Cache)
{
string List;
string VersionsList;
bool *Added = new bool[Cache->Head().PackageCount];
for (unsigned int I = 0; I != Cache->Head().PackageCount; I++)
Added[I] = false;
for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
{
pkgCache::PkgIterator I(Cache,Cache.List[J]);
if ((I->Flags & pkgCache::Flag::Essential) != pkgCache::Flag::Essential &&
(I->Flags & pkgCache::Flag::Important) != pkgCache::Flag::Important)
continue;
// The essential package is being removed
if (Cache[I].Delete() == true)
{
if (Added[I->ID] == false)
{
Added[I->ID] = true;
List += string(I.Name()) + " ";
//VersionsList += string(Cache[I].CurVersion) + "\n"; ???
}
}
if (I->CurrentVer == 0)
continue;
// Print out any essential package depenendents that are to be removed
for (pkgCache::DepIterator D = I.CurrentVer().DependsList(); D.end() == false; D++)
{
// Skip everything but depends
if (D->Type != pkgCache::Dep::PreDepends &&
D->Type != pkgCache::Dep::Depends)
continue;
pkgCache::PkgIterator P = D.SmartTargetPkg();
if (Cache[P].Delete() == true)
{
if (Added[P->ID] == true)
continue;
Added[P->ID] = true;
char S[300];
snprintf(S,sizeof(S),_("%s (due to %s) "),P.Name(),I.Name());
List += S;
//VersionsList += "\n"; ???
}
}
}
delete [] Added;
return ShowList(out,_("WARNING: The following essential packages will be removed.\n"
"This should NOT be done unless you know exactly what you are doing!"),List,VersionsList);
}
/*}}}*/
// Stats - Show some statistics /*{{{*/
// ---------------------------------------------------------------------
/* */
void Stats(ostream &out,pkgDepCache &Dep)
{
unsigned long Upgrade = 0;
unsigned long Downgrade = 0;
unsigned long Install = 0;
unsigned long ReInstall = 0;
for (pkgCache::PkgIterator I = Dep.PkgBegin(); I.end() == false; I++)
{
if (Dep[I].NewInstall() == true)
Install++;
else
{
if (Dep[I].Upgrade() == true)
Upgrade++;
else
if (Dep[I].Downgrade() == true)
Downgrade++;
}
if (Dep[I].Delete() == false && (Dep[I].iFlags & pkgDepCache::ReInstall) == pkgDepCache::ReInstall)
ReInstall++;
}
ioprintf(out,_("%lu upgraded, %lu newly installed, "),
Upgrade,Install);
if (ReInstall != 0)
ioprintf(out,_("%lu reinstalled, "),ReInstall);
if (Downgrade != 0)
ioprintf(out,_("%lu downgraded, "),Downgrade);
ioprintf(out,_("%lu to remove and %lu not upgraded.\n"),
Dep.DelCount(),Dep.KeepCount());
if (Dep.BadCount() != 0)
ioprintf(out,_("%lu not fully installed or removed.\n"),
Dep.BadCount());
}
/*}}}*/
// CacheFile::NameComp - QSort compare by name /*{{{*/
// ---------------------------------------------------------------------
/* */
pkgCache *CacheFile::SortCache = 0;
int CacheFile::NameComp(const void *a,const void *b)
{
if (*(pkgCache::Package **)a == 0 || *(pkgCache::Package **)b == 0)
return *(pkgCache::Package **)a - *(pkgCache::Package **)b;
const pkgCache::Package &A = **(pkgCache::Package **)a;
const pkgCache::Package &B = **(pkgCache::Package **)b;
return strcmp(SortCache->StrP + A.Name,SortCache->StrP + B.Name);
}
/*}}}*/
// CacheFile::Sort - Sort by name /*{{{*/
// ---------------------------------------------------------------------
/* */
void CacheFile::Sort()
{
delete [] List;
List = new pkgCache::Package *[Cache->Head().PackageCount];
memset(List,0,sizeof(*List)*Cache->Head().PackageCount);
pkgCache::PkgIterator I = Cache->PkgBegin();
for (;I.end() != true; I++)
List[I->ID] = I;
SortCache = *this;
qsort(List,Cache->Head().PackageCount,sizeof(*List),NameComp);
}
/*}}}*/
// CacheFile::CheckDeps - Open the cache file /*{{{*/
// ---------------------------------------------------------------------
/* This routine generates the caches and then opens the dependency cache
and verifies that the system is OK. */
bool CacheFile::CheckDeps(bool AllowBroken)
{
if (_error->PendingError() == true)
return false;
// Check that the system is OK
if (DCache->DelCount() != 0 || DCache->InstCount() != 0)
return _error->Error("Internal error, non-zero counts");
// Apply corrections for half-installed packages
if (pkgApplyStatus(*DCache) == false)
return false;
// Nothing is broken
if (DCache->BrokenCount() == 0 || AllowBroken == true)
return true;
// Attempt to fix broken things
if (_config->FindB("APT::Get::Fix-Broken",false) == true)
{
c1out << _("Correcting dependencies...") << flush;
if (pkgFixBroken(*DCache) == false || DCache->BrokenCount() != 0)
{
c1out << _(" failed.") << endl;
ShowBroken(c1out,*this,true);
return _error->Error(_("Unable to correct dependencies"));
}
if (pkgMinimizeUpgrade(*DCache) == false)
return _error->Error(_("Unable to minimize the upgrade set"));
c1out << _(" Done") << endl;
}
else
{
c1out << _("You might want to run `apt-get -f install' to correct these.") << endl;
ShowBroken(c1out,*this,true);
return _error->Error(_("Unmet dependencies. Try using -f."));
}
return true;
}
static bool CheckAuth(pkgAcquire& Fetcher)
{
string UntrustedList;
for (pkgAcquire::ItemIterator I = Fetcher.ItemsBegin(); I < Fetcher.ItemsEnd(); ++I)
{
if (!(*I)->IsTrusted())
{
UntrustedList += string((*I)->ShortDesc()) + " ";
}
}
if (UntrustedList == "")
{
return true;
}
ShowList(c2out,_("WARNING: The following packages cannot be authenticated!"),UntrustedList,"");
if (_config->FindB("APT::Get::AllowUnauthenticated",false) == true)
{
c2out << "Authentication warning overridden.\n";
return true;
}
if (_config->FindI("quiet",0) < 2
&& _config->FindB("APT::Get::Assume-Yes",false) == false)
{
c2out << _("Install these packages without verification [y/N]? ") << flush;
if (!YnPrompt(false))
return _error->Error(_("Some packages could not be authenticated"));
return true;
}
else if (_config->FindB("APT::Get::Force-Yes",false) == true)
{
return true;
}
return _error->Error(_("There are problems and -y was used without --force-yes"));
}
/*}}}*/
// InstallPackages - Actually download and install the packages /*{{{*/
// ---------------------------------------------------------------------
/* This displays the informative messages describing what is going to
happen and then calls the download routines */
bool InstallPackages(CacheFile &Cache,bool ShwKept,bool Ask = true,
bool Safety = true)
{
if (_config->FindB("APT::Get::Purge",false) == true)
{
pkgCache::PkgIterator I = Cache->PkgBegin();
for (; I.end() == false; I++)
{
if (I.Purge() == false && Cache[I].Mode == pkgDepCache::ModeDelete)
Cache->MarkDelete(I,true);
}
}
bool Fail = false;
bool Essential = false;
// Show all the various warning indicators
ShowDel(c1out,Cache);
ShowNew(c1out,Cache);
if (ShwKept == true)
ShowKept(c1out,Cache);
Fail |= !ShowHold(c1out,Cache);
if (_config->FindB("APT::Get::Show-Upgraded",true) == true)
ShowUpgraded(c1out,Cache);
Fail |= !ShowDowngraded(c1out,Cache);
if (_config->FindB("APT::Get::Download-Only",false) == false)
Essential = !ShowEssential(c1out,Cache);
Fail |= Essential;
Stats(c1out,Cache);
// Sanity check
if (Cache->BrokenCount() != 0)
{
ShowBroken(c1out,Cache,false);
return _error->Error("Internal error, InstallPackages was called with broken packages!");
}
if (Cache->DelCount() == 0 && Cache->InstCount() == 0 &&
Cache->BadCount() == 0)
return true;
// No remove flag
if (Cache->DelCount() != 0 && _config->FindB("APT::Get::Remove",true) == false)
return _error->Error(_("Packages need to be removed but remove is disabled."));
// Run the simulator ..
if (_config->FindB("APT::Get::Simulate") == true)
{
pkgSimulate PM(Cache);
pkgPackageManager::OrderResult Res = PM.DoInstall();
if (Res == pkgPackageManager::Failed)
return false;
if (Res != pkgPackageManager::Completed)
return _error->Error("Internal error, Ordering didn't finish");
return true;
}
// Create the text record parser
pkgRecords Recs(Cache);
if (_error->PendingError() == true)
return false;
// Lock the archive directory
FileFd Lock;
if (_config->FindB("Debug::NoLocking",false) == false &&
_config->FindB("APT::Get::Print-URIs") == false)
{
Lock.Fd(GetLock(_config->FindDir("Dir::Cache::Archives") + "lock"));
if (_error->PendingError() == true)
return _error->Error(_("Unable to lock the download directory"));
}
// Create the download object
AcqTextStatus Stat(ScreenWidth,_config->FindI("quiet",0));
pkgAcquire Fetcher(&Stat);
// Read the source list
pkgSourceList List;
if (List.ReadMainList() == false)
return _error->Error(_("The list of sources could not be read."));
// Create the package manager and prepare to download
SPtr<pkgPackageManager> PM= _system->CreatePM(Cache);
if (PM->GetArchives(&Fetcher,&List,&Recs) == false ||
_error->PendingError() == true)
return false;
// Display statistics
double FetchBytes = Fetcher.FetchNeeded();
double FetchPBytes = Fetcher.PartialPresent();
double DebBytes = Fetcher.TotalNeeded();
if (DebBytes != Cache->DebSize())
{
c0out << DebBytes << ',' << Cache->DebSize() << endl;
c0out << "How odd.. The sizes didn't match, email apt@packages.debian.org" << endl;
}
// Number of bytes
if (DebBytes != FetchBytes)
ioprintf(c1out,_("Need to get %sB/%sB of archives.\n"),
SizeToStr(FetchBytes).c_str(),SizeToStr(DebBytes).c_str());
else
ioprintf(c1out,_("Need to get %sB of archives.\n"),
SizeToStr(DebBytes).c_str());
// Size delta
if (Cache->UsrSize() >= 0)
ioprintf(c1out,_("After unpacking %sB of additional disk space will be used.\n"),
SizeToStr(Cache->UsrSize()).c_str());
else
ioprintf(c1out,_("After unpacking %sB disk space will be freed.\n"),
SizeToStr(-1*Cache->UsrSize()).c_str());
if (_error->PendingError() == true)
return false;
/* Check for enough free space, but only if we are actually going to
download */
if (_config->FindB("APT::Get::Print-URIs") == false &&
_config->FindB("APT::Get::Download",true) == true)
{
struct statvfs Buf;
string OutputDir = _config->FindDir("Dir::Cache::Archives");
if (statvfs(OutputDir.c_str(),&Buf) != 0)
return _error->Errno("statvfs","Couldn't determine free space in %s",
OutputDir.c_str());
if (unsigned(Buf.f_bfree) < (FetchBytes - FetchPBytes)/Buf.f_bsize)
return _error->Error(_("You don't have enough free space in %s."),
OutputDir.c_str());
}
// Fail safe check
if (_config->FindI("quiet",0) >= 2 ||
_config->FindB("APT::Get::Assume-Yes",false) == true)
{
if (Fail == true && _config->FindB("APT::Get::Force-Yes",false) == false)
return _error->Error(_("There are problems and -y was used without --force-yes"));
}
if (Essential == true && Safety == true)
{
if (_config->FindB("APT::Get::Trivial-Only",false) == true)
return _error->Error(_("Trivial Only specified but this is not a trivial operation."));
const char *Prompt = _("Yes, do as I say!");
ioprintf(c2out,
_("You are about to do something potentially harmful.\n"
"To continue type in the phrase '%s'\n"
" ?] "),Prompt);
c2out << flush;
if (AnalPrompt(Prompt) == false)
{
c2out << _("Abort.") << endl;
exit(1);
}
}
else
{
// Prompt to continue
if (Ask == true || Fail == true)
{
if (_config->FindB("APT::Get::Trivial-Only",false) == true)
return _error->Error(_("Trivial Only specified but this is not a trivial operation."));
if (_config->FindI("quiet",0) < 2 &&
_config->FindB("APT::Get::Assume-Yes",false) == false)
{
c2out << _("Do you want to continue [Y/n]? ") << flush;
if (YnPrompt() == false)
{
c2out << _("Abort.") << endl;
exit(1);
}
}
}
}
// Just print out the uris an exit if the --print-uris flag was used
if (_config->FindB("APT::Get::Print-URIs") == true)
{
pkgAcquire::UriIterator I = Fetcher.UriBegin();
for (; I != Fetcher.UriEnd(); I++)
cout << '\'' << I->URI << "' " << flNotDir(I->Owner->DestFile) << ' ' <<
I->Owner->FileSize << ' ' << I->Owner->MD5Sum() << endl;
return true;
}
if (!CheckAuth(Fetcher))
return false;
/* Unlock the dpkg lock if we are not going to be doing an install
after. */
if (_config->FindB("APT::Get::Download-Only",false) == true)
_system->UnLock();
// Run it
while (1)
{
bool Transient = false;
if (_config->FindB("APT::Get::Download",true) == false)
{
for (pkgAcquire::ItemIterator I = Fetcher.ItemsBegin(); I < Fetcher.ItemsEnd();)
{
if ((*I)->Local == true)
{
I++;
continue;
}
// Close the item and check if it was found in cache
(*I)->Finished();
if ((*I)->Complete == false)
Transient = true;
// Clear it out of the fetch list
delete *I;
I = Fetcher.ItemsBegin();
}
}
if (Fetcher.Run() == pkgAcquire::Failed)
return false;
// Print out errors
bool Failed = false;
for (pkgAcquire::ItemIterator I = Fetcher.ItemsBegin(); I != Fetcher.ItemsEnd(); I++)
{
if ((*I)->Status == pkgAcquire::Item::StatDone &&
(*I)->Complete == true)
continue;
if ((*I)->Status == pkgAcquire::Item::StatIdle)
{
Transient = true;
// Failed = true;
continue;
}
fprintf(stderr,_("Failed to fetch %s %s\n"),(*I)->DescURI().c_str(),
(*I)->ErrorText.c_str());
Failed = true;
}
/* If we are in no download mode and missing files and there were
'failures' then the user must specify -m. Furthermore, there
is no such thing as a transient error in no-download mode! */
if (Transient == true &&
_config->FindB("APT::Get::Download",true) == false)
{
Transient = false;
Failed = true;
}
if (_config->FindB("APT::Get::Download-Only",false) == true)
{
if (Failed == true && _config->FindB("APT::Get::Fix-Missing",false) == false)
return _error->Error(_("Some files failed to download"));
c1out << _("Download complete and in download only mode") << endl;
return true;
}
if (Failed == true && _config->FindB("APT::Get::Fix-Missing",false) == false)
{
return _error->Error(_("Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?"));
}
if (Transient == true && Failed == true)
return _error->Error(_("--fix-missing and media swapping is not currently supported"));
// Try to deal with missing package files
if (Failed == true && PM->FixMissing() == false)
{
cerr << _("Unable to correct missing packages.") << endl;
return _error->Error(_("Aborting install."));
}
_system->UnLock();
pkgPackageManager::OrderResult Res = PM->DoInstall();
if (Res == pkgPackageManager::Failed || _error->PendingError() == true)
return false;
if (Res == pkgPackageManager::Completed)
return true;
// Reload the fetcher object and loop again for media swapping
Fetcher.Shutdown();
if (PM->GetArchives(&Fetcher,&List,&Recs) == false)
return false;
_system->Lock();
}
}
/*}}}*/
// TryToInstall - Try to install a single package /*{{{*/
// ---------------------------------------------------------------------
/* This used to be inlined in DoInstall, but with the advent of regex package
name matching it was split out.. */
bool TryToInstall(pkgCache::PkgIterator Pkg,pkgDepCache &Cache,
pkgProblemResolver &Fix,bool Remove,bool BrokenFix,
unsigned int &ExpectedInst,bool AllowFail = true)
{
/* This is a pure virtual package and there is a single available
provides */
if (Cache[Pkg].CandidateVer == 0 && Pkg->ProvidesList != 0 &&
Pkg.ProvidesList()->NextProvides == 0)
{
pkgCache::PkgIterator Tmp = Pkg.ProvidesList().OwnerPkg();
ioprintf(c1out,_("Note, selecting %s instead of %s\n"),
Tmp.Name(),Pkg.Name());
Pkg = Tmp;
}
// Handle the no-upgrade case
if (_config->FindB("APT::Get::upgrade",true) == false &&
Pkg->CurrentVer != 0)
{
if (AllowFail == true)
ioprintf(c1out,_("Skipping %s, it is already installed and upgrade is not set.\n"),
Pkg.Name());
return true;
}
// Check if there is something at all to install
pkgDepCache::StateCache &State = Cache[Pkg];
if (Remove == true && Pkg->CurrentVer == 0)
{
Fix.Clear(Pkg);
Fix.Protect(Pkg);
Fix.Remove(Pkg);
/* We want to continue searching for regex hits, so we return false here
otherwise this is not really an error. */
if (AllowFail == false)
return false;
ioprintf(c1out,_("Package %s is not installed, so not removed\n"),Pkg.Name());
return true;
}
if (State.CandidateVer == 0 && Remove == false)
{
if (AllowFail == false)
return false;
if (Pkg->ProvidesList != 0)
{
ioprintf(c1out,_("Package %s is a virtual package provided by:\n"),
Pkg.Name());
pkgCache::PrvIterator I = Pkg.ProvidesList();
for (; I.end() == false; I++)
{
pkgCache::PkgIterator Pkg = I.OwnerPkg();
if (Cache[Pkg].CandidateVerIter(Cache) == I.OwnerVer())
{
if (Cache[Pkg].Install() == true && Cache[Pkg].NewInstall() == false)
c1out << " " << Pkg.Name() << " " << I.OwnerVer().VerStr() <<
_(" [Installed]") << endl;
else
c1out << " " << Pkg.Name() << " " << I.OwnerVer().VerStr() << endl;
}
}
c1out << _("You should explicitly select one to install.") << endl;
}
else
{
ioprintf(c1out,
_("Package %s is not available, but is referred to by another package.\n"
"This may mean that the package is missing, has been obsoleted, or\n"
"is only available from another source\n"),Pkg.Name());
string List;
string VersionsList;
SPtrArray<bool> Seen = new bool[Cache.Head().PackageCount];
memset(Seen,0,Cache.Head().PackageCount*sizeof(*Seen));
pkgCache::DepIterator Dep = Pkg.RevDependsList();
for (; Dep.end() == false; Dep++)
{
if (Dep->Type != pkgCache::Dep::Replaces)
continue;
if (Seen[Dep.ParentPkg()->ID] == true)
continue;
Seen[Dep.ParentPkg()->ID] = true;
List += string(Dep.ParentPkg().Name()) + " ";
//VersionsList += string(Dep.ParentPkg().CurVersion) + "\n"; ???
}
ShowList(c1out,_("However the following packages replace it:"),List,VersionsList);
}
_error->Error(_("Package %s has no installation candidate"),Pkg.Name());
return false;
}
Fix.Clear(Pkg);
Fix.Protect(Pkg);
if (Remove == true)
{
Fix.Remove(Pkg);
Cache.MarkDelete(Pkg,_config->FindB("APT::Get::Purge",false));
return true;
}
// Install it
Cache.MarkInstall(Pkg,false);
if (State.Install() == false)
{
if (_config->FindB("APT::Get::ReInstall",false) == true)
{
if (Pkg->CurrentVer == 0 || Pkg.CurrentVer().Downloadable() == false)
ioprintf(c1out,_("Reinstallation of %s is not possible, it cannot be downloaded.\n"),
Pkg.Name());
else
Cache.SetReInstall(Pkg,true);
}
else
{
if (AllowFail == true)
ioprintf(c1out,_("%s is already the newest version.\n"),
Pkg.Name());
}
}
else
ExpectedInst++;
// Install it with autoinstalling enabled.
if (State.InstBroken() == true && BrokenFix == false)
Cache.MarkInstall(Pkg,true);
return true;
}
/*}}}*/
// TryToChangeVer - Try to change a candidate version /*{{{*/
// ---------------------------------------------------------------------
/* */
bool TryToChangeVer(pkgCache::PkgIterator Pkg,pkgDepCache &Cache,
const char *VerTag,bool IsRel)
{
pkgVersionMatch Match(VerTag,(IsRel == true?pkgVersionMatch::Release :
pkgVersionMatch::Version));
pkgCache::VerIterator Ver = Match.Find(Pkg);
if (Ver.end() == true)
{
if (IsRel == true)
return _error->Error(_("Release '%s' for '%s' was not found"),
VerTag,Pkg.Name());
return _error->Error(_("Version '%s' for '%s' was not found"),
VerTag,Pkg.Name());
}
if (strcmp(VerTag,Ver.VerStr()) != 0)
{
ioprintf(c1out,_("Selected version %s (%s) for %s\n"),
Ver.VerStr(),Ver.RelStr().c_str(),Pkg.Name());
}
Cache.SetCandidateVersion(Ver);
return true;
}
/*}}}*/
// FindSrc - Find a source record /*{{{*/
// ---------------------------------------------------------------------
/* */
pkgSrcRecords::Parser *FindSrc(const char *Name,pkgRecords &Recs,
pkgSrcRecords &SrcRecs,string &Src,
pkgDepCache &Cache)
{
// We want to pull the version off the package specification..
string VerTag;
string TmpSrc = Name;
string::size_type Slash = TmpSrc.rfind('=');
if (Slash != string::npos)
{
VerTag = string(TmpSrc.begin() + Slash + 1,TmpSrc.end());
TmpSrc = string(TmpSrc.begin(),TmpSrc.begin() + Slash);
}
/* Lookup the version of the package we would install if we were to
install a version and determine the source package name, then look
in the archive for a source package of the same name. In theory
we could stash the version string as well and match that too but
today there aren't multi source versions in the archive. */
if (_config->FindB("APT::Get::Only-Source") == false &&
VerTag.empty() == true)
{
pkgCache::PkgIterator Pkg = Cache.FindPkg(TmpSrc);
if (Pkg.end() == false)
{
pkgCache::VerIterator Ver = Cache.GetCandidateVer(Pkg);
if (Ver.end() == false)
{
pkgRecords::Parser &Parse = Recs.Lookup(Ver.FileList());
Src = Parse.SourcePkg();
}
}
}
// No source package name..
if (Src.empty() == true)
Src = TmpSrc;
// The best hit
pkgSrcRecords::Parser *Last = 0;
unsigned long Offset = 0;
string Version;
bool IsMatch = false;
// If we are matching by version then we need exact matches to be happy
if (VerTag.empty() == false)
IsMatch = true;
/* Iterate over all of the hits, which includes the resulting
binary packages in the search */
pkgSrcRecords::Parser *Parse;
SrcRecs.Restart();
while ((Parse = SrcRecs.Find(Src.c_str(),false)) != 0)
{
string Ver = Parse->Version();
// Skip name mismatches
if (IsMatch == true && Parse->Package() != Src)
continue;
if (VerTag.empty() == false)
{
/* Don't want to fall through because we are doing exact version
matching. */
if (Cache.VS().CmpVersion(VerTag,Ver) != 0)
continue;
Last = Parse;
Offset = Parse->Offset();
break;
}
// Newer version or an exact match
if (Last == 0 || Cache.VS().CmpVersion(Version,Ver) < 0 ||
(Parse->Package() == Src && IsMatch == false))
{
IsMatch = Parse->Package() == Src;
Last = Parse;
Offset = Parse->Offset();
Version = Ver;
}
}
if (Last == 0)
return 0;
if (Last->Jump(Offset) == false)
return 0;
return Last;
}
/*}}}*/
// DoUpdate - Update the package lists /*{{{*/
// ---------------------------------------------------------------------
/* */
bool DoUpdate(CommandLine &CmdL)
{
if (CmdL.FileSize() != 1)
return _error->Error(_("The update command takes no arguments"));
// Get the source list
pkgSourceList List;
if (List.ReadMainList() == false)
return false;
// Lock the list directory
FileFd Lock;
if (_config->FindB("Debug::NoLocking",false) == false)
{
Lock.Fd(GetLock(_config->FindDir("Dir::State::Lists") + "lock"));
if (_error->PendingError() == true)
return _error->Error(_("Unable to lock the list directory"));
}
// Create the download object
AcqTextStatus Stat(ScreenWidth,_config->FindI("quiet",0));
pkgAcquire Fetcher(&Stat);
// Just print out the uris an exit if the --print-uris flag was used
if (_config->FindB("APT::Get::Print-URIs") == true)
{
// Populate it with the source selection and get all Indexes
// (GetAll=true)
if (List.GetIndexes(&Fetcher,true) == false)
return false;
pkgAcquire::UriIterator I = Fetcher.UriBegin();
for (; I != Fetcher.UriEnd(); I++)
cout << '\'' << I->URI << "' " << flNotDir(I->Owner->DestFile) << ' ' <<
I->Owner->FileSize << ' ' << I->Owner->MD5Sum() << endl;
return true;
}
// Populate it with the source selection
if (List.GetIndexes(&Fetcher) == false)
return false;
// Run it
if (Fetcher.Run() == pkgAcquire::Failed)
return false;
bool Failed = false;
for (pkgAcquire::ItemIterator I = Fetcher.ItemsBegin(); I != Fetcher.ItemsEnd(); I++)
{
if ((*I)->Status == pkgAcquire::Item::StatDone)
continue;
(*I)->Finished();
fprintf(stderr,_("Failed to fetch %s %s\n"),(*I)->DescURI().c_str(),
(*I)->ErrorText.c_str());
Failed = true;
}
// Clean out any old list files
if (_config->FindB("APT::Get::List-Cleanup",true) == true)
{
if (Fetcher.Clean(_config->FindDir("Dir::State::lists")) == false ||
Fetcher.Clean(_config->FindDir("Dir::State::lists") + "partial/") == false)
return false;
}
// Prepare the cache.
CacheFile Cache;
if (Cache.BuildCaches() == false)
return false;
if (Failed == true)
return _error->Error(_("Some index files failed to download, they have been ignored, or old ones used instead."));
return true;
}
/*}}}*/
// DoUpgrade - Upgrade all packages /*{{{*/
// ---------------------------------------------------------------------
/* Upgrade all packages without installing new packages or erasing old
packages */
bool DoUpgrade(CommandLine &CmdL)
{
CacheFile Cache;
if (Cache.OpenForInstall() == false || Cache.CheckDeps() == false)
return false;
// Do the upgrade
if (pkgAllUpgrade(Cache) == false)
{
ShowBroken(c1out,Cache,false);
return _error->Error(_("Internal error, AllUpgrade broke stuff"));
}
return InstallPackages(Cache,true);
}
/*}}}*/
// DoInstall - Install packages from the command line /*{{{*/
// ---------------------------------------------------------------------
/* Install named packages */
bool DoInstall(CommandLine &CmdL)
{
// Lock the list directory
FileFd Lock;
if (_config->FindB("Debug::NoLocking",false) == false)
{
Lock.Fd(GetLock(_config->FindDir("Dir::State::Lists") + "lock"));
if (_error->PendingError() == true)
return _error->Error(_("Unable to lock the list directory"));
}
CacheFile Cache;
if (Cache.OpenForInstall() == false ||
Cache.CheckDeps(CmdL.FileSize() != 1) == false)
return false;
// Enter the special broken fixing mode if the user specified arguments
bool BrokenFix = false;
if (Cache->BrokenCount() != 0)
BrokenFix = true;
unsigned int ExpectedInst = 0;
unsigned int Packages = 0;
pkgProblemResolver Fix(Cache);
bool DefRemove = false;
if (strcasecmp(CmdL.FileList[0],"remove") == 0)
DefRemove = true;
for (const char **I = CmdL.FileList + 1; *I != 0; I++)
{
// Duplicate the string
unsigned int Length = strlen(*I);
char S[300];
if (Length >= sizeof(S))
continue;
strcpy(S,*I);
// See if we are removing and special indicators..
bool Remove = DefRemove;
char *VerTag = 0;
bool VerIsRel = false;
while (Cache->FindPkg(S).end() == true)
{
// Handle an optional end tag indicating what to do
if (Length >= 1 && S[Length - 1] == '-')
{
Remove = true;
S[--Length] = 0;
continue;
}
if (Length >= 1 && S[Length - 1] == '+')
{
Remove = false;
S[--Length] = 0;
continue;
}
char *Slash = strchr(S,'=');
if (Slash != 0)
{
VerIsRel = false;
*Slash = 0;
VerTag = Slash + 1;
}
Slash = strchr(S,'/');
if (Slash != 0)
{
VerIsRel = true;
*Slash = 0;
VerTag = Slash + 1;
}
break;
}
// Locate the package
pkgCache::PkgIterator Pkg = Cache->FindPkg(S);
Packages++;
if (Pkg.end() == true)
{
// Check if the name is a regex
const char *I;
for (I = S; *I != 0; I++)
if (*I == '?' || *I == '*' || *I == '|' ||
*I == '[' || *I == '^' || *I == '$')
break;
if (*I == 0)
return _error->Error(_("Couldn't find package %s"),S);
// Regexs must always be confirmed
ExpectedInst += 1000;
// Compile the regex pattern
regex_t Pattern;
int Res;
if ((Res = regcomp(&Pattern,S,REG_EXTENDED | REG_ICASE |
REG_NOSUB)) != 0)
{
char Error[300];
regerror(Res,&Pattern,Error,sizeof(Error));
return _error->Error(_("Regex compilation error - %s"),Error);
}
// Run over the matches
bool Hit = false;
for (Pkg = Cache->PkgBegin(); Pkg.end() == false; Pkg++)
{
if (regexec(&Pattern,Pkg.Name(),0,0,0) != 0)
continue;
ioprintf(c1out,_("Note, selecting %s for regex '%s'\n"),
Pkg.Name(),S);
if (VerTag != 0)
if (TryToChangeVer(Pkg,Cache,VerTag,VerIsRel) == false)
return false;
Hit |= TryToInstall(Pkg,Cache,Fix,Remove,BrokenFix,
ExpectedInst,false);
}
regfree(&Pattern);
if (Hit == false)
return _error->Error(_("Couldn't find package %s"),S);
}
else
{
if (VerTag != 0)
if (TryToChangeVer(Pkg,Cache,VerTag,VerIsRel) == false)
return false;
if (TryToInstall(Pkg,Cache,Fix,Remove,BrokenFix,ExpectedInst) == false)
return false;
}
}
/* If we are in the Broken fixing mode we do not attempt to fix the
problems. This is if the user invoked install without -f and gave
packages */
if (BrokenFix == true && Cache->BrokenCount() != 0)
{
c1out << _("You might want to run `apt-get -f install' to correct these:") << endl;
ShowBroken(c1out,Cache,false);
return _error->Error(_("Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution)."));
}
// Call the scored problem resolver
Fix.InstallProtect();
if (Fix.Resolve(true) == false)
_error->Discard();
// Now we check the state of the packages,
if (Cache->BrokenCount() != 0)
{
c1out <<
_("Some packages could not be installed. This may mean that you have\n"
"requested an impossible situation or if you are using the unstable\n"
"distribution that some required packages have not yet been created\n"
"or been moved out of Incoming.") << endl;
if (Packages == 1)
{
c1out << endl;
c1out <<
_("Since you only requested a single operation it is extremely likely that\n"
"the package is simply not installable and a bug report against\n"
"that package should be filed.") << endl;
}
c1out << _("The following information may help to resolve the situation:") << endl;
c1out << endl;
ShowBroken(c1out,Cache,false);
return _error->Error(_("Broken packages"));
}
/* Print out a list of packages that are going to be installed extra
to what the user asked */
if (Cache->InstCount() != ExpectedInst)
{
string List;
string VersionsList;
for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
{
pkgCache::PkgIterator I(Cache,Cache.List[J]);
if ((*Cache)[I].Install() == false)
continue;
const char **J;
for (J = CmdL.FileList + 1; *J != 0; J++)
if (strcmp(*J,I.Name()) == 0)
break;
if (*J == 0) {
List += string(I.Name()) + " ";
VersionsList += string(Cache[I].CandVersion) + "\n";
}
}
ShowList(c1out,_("The following extra packages will be installed:"),List,VersionsList);
}
/* Print out a list of suggested and recommended packages */
{
string SuggestsList, RecommendsList, List;
string SuggestsVersions, RecommendsVersions;
for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
{
pkgCache::PkgIterator I(Cache,Cache.List[J]);
/* Just look at the ones we want to install */
if ((*Cache)[I].Install() == false)
continue;
for (pkgCache::VerIterator V = I.VersionList(); V.end() == false; V++)
{
for (pkgCache::DepIterator D = V.DependsList(); D.end() == false; )
{
pkgCache::DepIterator Start;
pkgCache::DepIterator End;
D.GlobOr(Start,End); // advances D
/*
* If this is a virtual package, we need to check the list of
* packages that provide it and see if any of those are
* installed
*/
bool providedBySomething = false;
for (pkgCache::PrvIterator Prv = Start.TargetPkg().ProvidesList();
Prv.end() != true;
Prv++)
if ((*Cache)[Prv.OwnerPkg()].InstVerIter(*Cache).end() == false)
{
providedBySomething = true;
break;
}
if (providedBySomething) continue;
for(;;)
{
/* Skip if package is installed already, or is about to be */
string target = string(Start.TargetPkg().Name()) + " ";
if ((*Start.TargetPkg()).SelectedState == pkgCache::State::Install
|| Cache[Start.TargetPkg()].Install())
break;
/* Skip if we already saw it */
if (int(SuggestsList.find(target)) != -1 || int(RecommendsList.find(target)) != -1)
break;
if (Start->Type == pkgCache::Dep::Suggests) {
SuggestsList += target;
SuggestsVersions += string(Cache[Start.TargetPkg()].CandVersion) + "\n";
}
if (Start->Type == pkgCache::Dep::Recommends) {
RecommendsList += target;
RecommendsVersions += string(Cache[Start.TargetPkg()].CandVersion) + "\n";
}
if (Start >= End)
break;
Start++;
}
}
}
}
ShowList(c1out,_("Suggested packages:"),SuggestsList,SuggestsVersions);
ShowList(c1out,_("Recommended packages:"),RecommendsList,RecommendsVersions);
}
// See if we need to prompt
if (Cache->InstCount() == ExpectedInst && Cache->DelCount() == 0)
return InstallPackages(Cache,false,false);
return InstallPackages(Cache,false);
}
/*}}}*/
// DoDistUpgrade - Automatic smart upgrader /*{{{*/
// ---------------------------------------------------------------------
/* Intelligent upgrader that will install and remove packages at will */
bool DoDistUpgrade(CommandLine &CmdL)
{
CacheFile Cache;
if (Cache.OpenForInstall() == false || Cache.CheckDeps() == false)
return false;
c0out << _("Calculating upgrade... ") << flush;
if (pkgDistUpgrade(*Cache) == false)
{
c0out << _("Failed") << endl;
ShowBroken(c1out,Cache,false);
return false;
}
c0out << _("Done") << endl;
return InstallPackages(Cache,true);
}
/*}}}*/
// DoDSelectUpgrade - Do an upgrade by following dselects selections /*{{{*/
// ---------------------------------------------------------------------
/* Follows dselect's selections */
bool DoDSelectUpgrade(CommandLine &CmdL)
{
CacheFile Cache;
if (Cache.OpenForInstall() == false || Cache.CheckDeps() == false)
return false;
// Install everything with the install flag set
pkgCache::PkgIterator I = Cache->PkgBegin();
for (;I.end() != true; I++)
{
/* Install the package only if it is a new install, the autoupgrader
will deal with the rest */
if (I->SelectedState == pkgCache::State::Install)
Cache->MarkInstall(I,false);
}
/* Now install their deps too, if we do this above then order of
the status file is significant for | groups */
for (I = Cache->PkgBegin();I.end() != true; I++)
{
/* Install the package only if it is a new install, the autoupgrader
will deal with the rest */
if (I->SelectedState == pkgCache::State::Install)
Cache->MarkInstall(I,true);
}
// Apply erasures now, they override everything else.
for (I = Cache->PkgBegin();I.end() != true; I++)
{
// Remove packages
if (I->SelectedState == pkgCache::State::DeInstall ||
I->SelectedState == pkgCache::State::Purge)
Cache->MarkDelete(I,I->SelectedState == pkgCache::State::Purge);
}
/* Resolve any problems that dselect created, allupgrade cannot handle
such things. We do so quite agressively too.. */
if (Cache->BrokenCount() != 0)
{
pkgProblemResolver Fix(Cache);
// Hold back held packages.
if (_config->FindB("APT::Ignore-Hold",false) == false)
{
for (pkgCache::PkgIterator I = Cache->PkgBegin(); I.end() == false; I++)
{
if (I->SelectedState == pkgCache::State::Hold)
{
Fix.Protect(I);
Cache->MarkKeep(I);
}
}
}
if (Fix.Resolve() == false)
{
ShowBroken(c1out,Cache,false);
return _error->Error("Internal error, problem resolver broke stuff");
}
}
// Now upgrade everything
if (pkgAllUpgrade(Cache) == false)
{
ShowBroken(c1out,Cache,false);
return _error->Error("Internal error, problem resolver broke stuff");
}
return InstallPackages(Cache,false);
}
/*}}}*/
// DoClean - Remove download archives /*{{{*/
// ---------------------------------------------------------------------
/* */
bool DoClean(CommandLine &CmdL)
{
if (_config->FindB("APT::Get::Simulate") == true)
{
cout << "Del " << _config->FindDir("Dir::Cache::archives") << "* " <<
_config->FindDir("Dir::Cache::archives") << "partial/*" << endl;
return true;
}
// Lock the archive directory
FileFd Lock;
if (_config->FindB("Debug::NoLocking",false) == false)
{
Lock.Fd(GetLock(_config->FindDir("Dir::Cache::Archives") + "lock"));
if (_error->PendingError() == true)
return _error->Error(_("Unable to lock the download directory"));
}
pkgAcquire Fetcher;
Fetcher.Clean(_config->FindDir("Dir::Cache::archives"));
Fetcher.Clean(_config->FindDir("Dir::Cache::archives") + "partial/");
return true;
}
/*}}}*/
// DoAutoClean - Smartly remove downloaded archives /*{{{*/
// ---------------------------------------------------------------------
/* This is similar to clean but it only purges things that cannot be
downloaded, that is old versions of cached packages. */
class LogCleaner : public pkgArchiveCleaner
{
protected:
virtual void Erase(const char *File,string Pkg,string Ver,struct stat &St)
{
c1out << "Del " << Pkg << " " << Ver << " [" << SizeToStr(St.st_size) << "B]" << endl;
if (_config->FindB("APT::Get::Simulate") == false)
unlink(File);
};
};
bool DoAutoClean(CommandLine &CmdL)
{
// Lock the archive directory
FileFd Lock;
if (_config->FindB("Debug::NoLocking",false) == false)
{
Lock.Fd(GetLock(_config->FindDir("Dir::Cache::Archives") + "lock"));
if (_error->PendingError() == true)
return _error->Error(_("Unable to lock the download directory"));
}
CacheFile Cache;
if (Cache.Open() == false)
return false;
LogCleaner Cleaner;
return Cleaner.Go(_config->FindDir("Dir::Cache::archives"),*Cache) &&
Cleaner.Go(_config->FindDir("Dir::Cache::archives") + "partial/",*Cache);
}
/*}}}*/
// DoCheck - Perform the check operation /*{{{*/
// ---------------------------------------------------------------------
/* Opening automatically checks the system, this command is mostly used
for debugging */
bool DoCheck(CommandLine &CmdL)
{
CacheFile Cache;
Cache.Open();
Cache.CheckDeps();
return true;
}
/*}}}*/
// DoSource - Fetch a source archive /*{{{*/
// ---------------------------------------------------------------------
/* Fetch souce packages */
struct DscFile
{
string Package;
string Version;
string Dsc;
};
bool DoSource(CommandLine &CmdL)
{
CacheFile Cache;
if (Cache.Open(false) == false)
return false;
if (CmdL.FileSize() <= 1)
return _error->Error(_("Must specify at least one package to fetch source for"));
// Read the source list
pkgSourceList List;
if (List.ReadMainList() == false)
return _error->Error(_("The list of sources could not be read."));
// Create the text record parsers
pkgRecords Recs(Cache);
pkgSrcRecords SrcRecs(List);
if (_error->PendingError() == true)
return false;
// Create the download object
AcqTextStatus Stat(ScreenWidth,_config->FindI("quiet",0));
pkgAcquire Fetcher(&Stat);
DscFile *Dsc = new DscFile[CmdL.FileSize()];
// Load the requestd sources into the fetcher
unsigned J = 0;
for (const char **I = CmdL.FileList + 1; *I != 0; I++, J++)
{
string Src;
pkgSrcRecords::Parser *Last = FindSrc(*I,Recs,SrcRecs,Src,*Cache);
if (Last == 0)
return _error->Error(_("Unable to find a source package for %s"),Src.c_str());
// Back track
vector<pkgSrcRecords::File> Lst;
if (Last->Files(Lst) == false)
return false;
// Load them into the fetcher
for (vector<pkgSrcRecords::File>::const_iterator I = Lst.begin();
I != Lst.end(); I++)
{
// Try to guess what sort of file it is we are getting.
if (I->Type == "dsc")
{
Dsc[J].Package = Last->Package();
Dsc[J].Version = Last->Version();
Dsc[J].Dsc = flNotDir(I->Path);
}
// Diff only mode only fetches .diff files
if (_config->FindB("APT::Get::Diff-Only",false) == true &&
I->Type != "diff")
continue;
// Tar only mode only fetches .tar files
if (_config->FindB("APT::Get::Tar-Only",false) == true &&
I->Type != "tar")
continue;
new pkgAcqFile(&Fetcher,Last->Index().ArchiveURI(I->Path),
I->MD5Hash,I->Size,
Last->Index().SourceInfo(*Last,*I),Src);
}
}
// Display statistics
double FetchBytes = Fetcher.FetchNeeded();
double FetchPBytes = Fetcher.PartialPresent();
double DebBytes = Fetcher.TotalNeeded();
// Check for enough free space
struct statvfs Buf;
string OutputDir = ".";
if (statvfs(OutputDir.c_str(),&Buf) != 0)
return _error->Errno("statvfs","Couldn't determine free space in %s",
OutputDir.c_str());
if (unsigned(Buf.f_bfree) < (FetchBytes - FetchPBytes)/Buf.f_bsize)
return _error->Error(_("You don't have enough free space in %s"),
OutputDir.c_str());
// Number of bytes
if (DebBytes != FetchBytes)
ioprintf(c1out,_("Need to get %sB/%sB of source archives.\n"),
SizeToStr(FetchBytes).c_str(),SizeToStr(DebBytes).c_str());
else
ioprintf(c1out,_("Need to get %sB of source archives.\n"),
SizeToStr(DebBytes).c_str());
if (_config->FindB("APT::Get::Simulate",false) == true)
{
for (unsigned I = 0; I != J; I++)
ioprintf(cout,_("Fetch source %s\n"),Dsc[I].Package.c_str());
return true;
}
// Just print out the uris an exit if the --print-uris flag was used
if (_config->FindB("APT::Get::Print-URIs") == true)
{
pkgAcquire::UriIterator I = Fetcher.UriBegin();
for (; I != Fetcher.UriEnd(); I++)
cout << '\'' << I->URI << "' " << flNotDir(I->Owner->DestFile) << ' ' <<
I->Owner->FileSize << ' ' << I->Owner->MD5Sum() << endl;
return true;
}
// Run it
if (Fetcher.Run() == pkgAcquire::Failed)
return false;
// Print error messages
bool Failed = false;
for (pkgAcquire::ItemIterator I = Fetcher.ItemsBegin(); I != Fetcher.ItemsEnd(); I++)
{
if ((*I)->Status == pkgAcquire::Item::StatDone &&
(*I)->Complete == true)
continue;
fprintf(stderr,_("Failed to fetch %s %s\n"),(*I)->DescURI().c_str(),
(*I)->ErrorText.c_str());
Failed = true;
}
if (Failed == true)
return _error->Error(_("Failed to fetch some archives."));
if (_config->FindB("APT::Get::Download-only",false) == true)
{
c1out << _("Download complete and in download only mode") << endl;
return true;
}
// Unpack the sources
pid_t Process = ExecFork();
if (Process == 0)
{
for (unsigned I = 0; I != J; I++)
{
string Dir = Dsc[I].Package + '-' + Cache->VS().UpstreamVersion(Dsc[I].Version.c_str());
// Diff only mode only fetches .diff files
if (_config->FindB("APT::Get::Diff-Only",false) == true ||
_config->FindB("APT::Get::Tar-Only",false) == true ||
Dsc[I].Dsc.empty() == true)
continue;
// See if the package is already unpacked
struct stat Stat;
if (stat(Dir.c_str(),&Stat) == 0 &&
S_ISDIR(Stat.st_mode) != 0)
{
ioprintf(c0out ,_("Skipping unpack of already unpacked source in %s\n"),
Dir.c_str());
}
else
{
// Call dpkg-source
char S[500];
snprintf(S,sizeof(S),"%s -x %s",
_config->Find("Dir::Bin::dpkg-source","dpkg-source").c_str(),
Dsc[I].Dsc.c_str());
if (system(S) != 0)
{
fprintf(stderr,_("Unpack command '%s' failed.\n"),S);
_exit(1);
}
}
// Try to compile it with dpkg-buildpackage
if (_config->FindB("APT::Get::Compile",false) == true)
{
// Call dpkg-buildpackage
char S[500];
snprintf(S,sizeof(S),"cd %s && %s %s",
Dir.c_str(),
_config->Find("Dir::Bin::dpkg-buildpackage","dpkg-buildpackage").c_str(),
_config->Find("DPkg::Build-Options","-b -uc").c_str());
if (system(S) != 0)
{
fprintf(stderr,_("Build command '%s' failed.\n"),S);
_exit(1);
}
}
}
_exit(0);
}
// Wait for the subprocess
int Status = 0;
while (waitpid(Process,&Status,0) != Process)
{
if (errno == EINTR)
continue;
return _error->Errno("waitpid","Couldn't wait for subprocess");
}
if (WIFEXITED(Status) == 0 || WEXITSTATUS(Status) != 0)
return _error->Error(_("Child process failed"));
return true;
}
/*}}}*/
// DoBuildDep - Install/removes packages to satisfy build dependencies /*{{{*/
// ---------------------------------------------------------------------
/* This function will look at the build depends list of the given source
package and install the necessary packages to make it true, or fail. */
bool DoBuildDep(CommandLine &CmdL)
{
CacheFile Cache;
if (Cache.Open(true) == false)
return false;
if (CmdL.FileSize() <= 1)
return _error->Error(_("Must specify at least one package to check builddeps for"));
// Read the source list
pkgSourceList List;
if (List.ReadMainList() == false)
return _error->Error(_("The list of sources could not be read."));
// Create the text record parsers
pkgRecords Recs(Cache);
pkgSrcRecords SrcRecs(List);
if (_error->PendingError() == true)
return false;
// Create the download object
AcqTextStatus Stat(ScreenWidth,_config->FindI("quiet",0));
pkgAcquire Fetcher(&Stat);
unsigned J = 0;
for (const char **I = CmdL.FileList + 1; *I != 0; I++, J++)
{
string Src;
pkgSrcRecords::Parser *Last = FindSrc(*I,Recs,SrcRecs,Src,*Cache);
if (Last == 0)
return _error->Error(_("Unable to find a source package for %s"),Src.c_str());
// Process the build-dependencies
vector<pkgSrcRecords::Parser::BuildDepRec> BuildDeps;
if (Last->BuildDepends(BuildDeps, _config->FindB("APT::Get::Arch-Only",false)) == false)
return _error->Error(_("Unable to get build-dependency information for %s"),Src.c_str());
// Also ensure that build-essential packages are present
Configuration::Item const *Opts = _config->Tree("APT::Build-Essential");
if (Opts)
Opts = Opts->Child;
for (; Opts; Opts = Opts->Next)
{
if (Opts->Value.empty() == true)
continue;
pkgSrcRecords::Parser::BuildDepRec rec;
rec.Package = Opts->Value;
rec.Type = pkgSrcRecords::Parser::BuildDependIndep;
rec.Op = 0;
BuildDeps.push_back(rec);
}
if (BuildDeps.size() == 0)
{
ioprintf(c1out,_("%s has no build depends.\n"),Src.c_str());
continue;
}
// Install the requested packages
unsigned int ExpectedInst = 0;
vector <pkgSrcRecords::Parser::BuildDepRec>::iterator D;
pkgProblemResolver Fix(Cache);
bool skipAlternatives = false; // skip remaining alternatives in an or group
for (D = BuildDeps.begin(); D != BuildDeps.end(); D++)
{
bool hasAlternatives = (((*D).Op & pkgCache::Dep::Or) == pkgCache::Dep::Or);
if (skipAlternatives == true)
{
if (!hasAlternatives)
skipAlternatives = false; // end of or group
continue;
}
if ((*D).Type == pkgSrcRecords::Parser::BuildConflict ||
(*D).Type == pkgSrcRecords::Parser::BuildConflictIndep)
{
pkgCache::PkgIterator Pkg = Cache->FindPkg((*D).Package);
// Build-conflicts on unknown packages are silently ignored
if (Pkg.end() == true)
continue;
pkgCache::VerIterator IV = (*Cache)[Pkg].InstVerIter(*Cache);
/*
* Remove if we have an installed version that satisfies the
* version criteria
*/
if (IV.end() == false &&
Cache->VS().CheckDep(IV.VerStr(),(*D).Op,(*D).Version.c_str()) == true)
TryToInstall(Pkg,Cache,Fix,true,false,ExpectedInst);
}
else // BuildDep || BuildDepIndep
{
pkgCache::PkgIterator Pkg = Cache->FindPkg((*D).Package);
if (_config->FindB("Debug::BuildDeps",false) == true)
cout << "Looking for " << (*D).Package << "...\n";
if (Pkg.end() == true)
{
if (_config->FindB("Debug::BuildDeps",false) == true)
cout << " (not found)" << (*D).Package << endl;
if (hasAlternatives)
continue;
return _error->Error(_("%s dependency for %s cannot be satisfied "
"because the package %s cannot be found"),
Last->BuildDepType((*D).Type),Src.c_str(),
(*D).Package.c_str());
}
/*
* if there are alternatives, we've already picked one, so skip
* the rest
*
* TODO: this means that if there's a build-dep on A|B and B is
* installed, we'll still try to install A; more importantly,
* if A is currently broken, we cannot go back and try B. To fix
* this would require we do a Resolve cycle for each package we
* add to the install list. Ugh
*/
/*
* If this is a virtual package, we need to check the list of
* packages that provide it and see if any of those are
* installed
*/
pkgCache::PrvIterator Prv = Pkg.ProvidesList();
for (; Prv.end() != true; Prv++)
{
if (_config->FindB("Debug::BuildDeps",false) == true)
cout << " Checking provider " << Prv.OwnerPkg().Name() << endl;
if ((*Cache)[Prv.OwnerPkg()].InstVerIter(*Cache).end() == false)
break;
}
// Get installed version and version we are going to install
pkgCache::VerIterator IV = (*Cache)[Pkg].InstVerIter(*Cache);
if ((*D).Version[0] != '\0') {
// Versioned dependency
pkgCache::VerIterator CV = (*Cache)[Pkg].CandidateVerIter(*Cache);
for (; CV.end() != true; CV++)
{
if (Cache->VS().CheckDep(CV.VerStr(),(*D).Op,(*D).Version.c_str()) == true)
break;
}
if (CV.end() == true)
if (hasAlternatives)
{
continue;
}
else
{
return _error->Error(_("%s dependency for %s cannot be satisfied "
"because no available versions of package %s "
"can satisfy version requirements"),
Last->BuildDepType((*D).Type),Src.c_str(),
(*D).Package.c_str());
}
}
else
{
// Only consider virtual packages if there is no versioned dependency
if (Prv.end() == false)
{
if (_config->FindB("Debug::BuildDeps",false) == true)
cout << " Is provided by installed package " << Prv.OwnerPkg().Name() << endl;
skipAlternatives = hasAlternatives;
continue;
}
}
if (IV.end() == false)
{
if (_config->FindB("Debug::BuildDeps",false) == true)
cout << " Is installed\n";
if (Cache->VS().CheckDep(IV.VerStr(),(*D).Op,(*D).Version.c_str()) == true)
{
skipAlternatives = hasAlternatives;
continue;
}
if (_config->FindB("Debug::BuildDeps",false) == true)
cout << " ...but the installed version doesn't meet the version requirement\n";
if (((*D).Op & pkgCache::Dep::LessEq) == pkgCache::Dep::LessEq)
{
return _error->Error(_("Failed to satisfy %s dependency for %s: Installed package %s is too new"),
Last->BuildDepType((*D).Type),
Src.c_str(),
Pkg.Name());