##################################################################### */
/*}}}*/
// Include Files /*{{{*/
-#include<config.h>
+#include <config.h>
#include <apt-pkg/packagemanager.h>
#include <apt-pkg/orderlist.h>
#include <apt-pkg/acquire-item.h>
#include <apt-pkg/algorithms.h>
#include <apt-pkg/configuration.h>
-#include <apt-pkg/sptr.h>
+#include <apt-pkg/macros.h>
+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/cacheiterators.h>
+#include <apt-pkg/strutl.h>
+#include <apt-pkg/install-progress.h>
-#include <apti18n.h>
+#include <stddef.h>
+#include <list>
+#include <string>
#include <iostream>
-#include <fcntl.h>
+
+#include <apti18n.h>
/*}}}*/
using namespace std;
// ---------------------------------------------------------------------
/* */
pkgPackageManager::pkgPackageManager(pkgDepCache *pCache) : Cache(*pCache),
- List(NULL), Res(Incomplete)
+ List(NULL), Res(Incomplete), d(NULL)
{
FileNames = new string[Cache.Head().PackageCount];
Debug = _config->FindB("Debug::pkgPackageManager",false);
if(!List->IsFlag(D.TargetPkg(), pkgOrderList::Immediate))
{
if(Debug)
- clog << OutputInDepth(Depth) << "ImmediateAdd(): Adding Immediate flag to " << D.TargetPkg() << " cause of " << D.DepType() << " " << I.Name() << endl;
+ clog << OutputInDepth(Depth) << "ImmediateAdd(): Adding Immediate flag to " << D.TargetPkg() << " cause of " << D.DepType() << " " << I.FullName() << endl;
List->Flag(D.TargetPkg(),pkgOrderList::Immediate);
ImmediateAdd(D.TargetPkg(), UseInstallVer, Depth + 1);
}
NoImmConfigure == false) || ImmConfigureAll)
{
if(Debug && !ImmConfigureAll)
- clog << "CreateOrderList(): Adding Immediate flag for " << I.Name() << endl;
+ clog << "CreateOrderList(): Adding Immediate flag for " << I.FullName() << endl;
List->Flag(I,pkgOrderList::Immediate);
if (!ImmConfigureAll) {
return true;
}
/*}}}*/
-// PM::DepAlwaysTrue - Returns true if this dep is irrelevent /*{{{*/
+// PM::DepAlwaysTrue - Returns true if this dep is irrelevant /*{{{*/
// ---------------------------------------------------------------------
/* The restriction on provides is to eliminate the case when provides
are transitioning between valid states [ie exim to smail] */
D->Type != pkgCache::Dep::Obsoletes)
continue;
- // The package hasnt been changed
+ // The package hasn't been changed
if (List->IsNow(Pkg) == false)
continue;
- // Ignore self conflicts, ignore conflicts from irrelevent versions
+ // Ignore self conflicts, ignore conflicts from irrelevant versions
if (D.IsIgnorable(Pkg) || D.ParentVer() != D.ParentPkg().CurrentVer())
continue;
if (Cache.VS().CheckDep(Ver,D->CompareOp,D.TargetVer()) == false)
continue;
- if (EarlyRemove(D.ParentPkg()) == false)
+ if (EarlyRemove(D.ParentPkg(), &D) == false)
return _error->Error("Reverse conflicts early remove for package '%s' failed",
- Pkg.Name());
+ Pkg.FullName().c_str());
+ }
+ return true;
+}
+ /*}}}*/
+// PM::CheckRBreaks - Look for reverse breaks /*{{{*/
+bool pkgPackageManager::CheckRBreaks(PkgIterator const &Pkg, DepIterator D,
+ const char * const Ver)
+{
+ for (;D.end() == false; ++D)
+ {
+ if (D->Type != pkgCache::Dep::DpkgBreaks)
+ continue;
+
+ PkgIterator const DP = D.ParentPkg();
+ if (Cache[DP].Delete() == false)
+ continue;
+
+ // Ignore self conflicts, ignore conflicts from irrelevant versions
+ if (D.IsIgnorable(Pkg) || D.ParentVer() != DP.CurrentVer())
+ continue;
+
+ if (Cache.VS().CheckDep(Ver, D->CompareOp, D.TargetVer()) == false)
+ continue;
+
+ // no earlyremove() here as user has already agreed to the permanent removal
+ if (SmartRemove(DP) == false)
+ return _error->Error("Internal Error, Could not early remove %s (%d)",DP.FullName().c_str(), 4);
}
return true;
}
if (ConfigurePkgs == true && SmartConfigure(Pkg, 0) == false) {
if (ImmConfigureAll)
_error->Error(_("Could not perform immediate configuration on '%s'. "
- "Please see man 5 apt.conf under APT::Immediate-Configure for details. (%d)"),Pkg.Name(),1);
+ "Please see man 5 apt.conf under APT::Immediate-Configure for details. (%d)"),Pkg.FullName().c_str(),1);
else
- _error->Error("Internal error, packages left unconfigured. %s",Pkg.Name());
+ _error->Error("Internal error, packages left unconfigured. %s",Pkg.FullName().c_str());
return false;
}
return true;
}
/*}}}*/
+// PM::NonLoopingSmart - helper to avoid loops while calling Smart methods /*{{{*/
+// -----------------------------------------------------------------------
+/* ensures that a loop of the form A depends B, B depends A (and similar)
+ is not leading us down into infinite recursion segfault land */
+bool pkgPackageManager::NonLoopingSmart(SmartAction const action, pkgCache::PkgIterator &Pkg,
+ pkgCache::PkgIterator DepPkg, int const Depth, bool const PkgLoop,
+ bool * const Bad, bool * const Changed)
+{
+ if (PkgLoop == false)
+ List->Flag(Pkg,pkgOrderList::Loop);
+ bool success = false;
+ switch(action)
+ {
+ case UNPACK_IMMEDIATE: success = SmartUnPack(DepPkg, true, Depth + 1); break;
+ case UNPACK: success = SmartUnPack(DepPkg, false, Depth + 1); break;
+ case CONFIGURE: success = SmartConfigure(DepPkg, Depth + 1); break;
+ }
+ if (PkgLoop == false)
+ List->RmFlag(Pkg,pkgOrderList::Loop);
+
+ if (success == false)
+ return false;
+
+ if (Bad != NULL)
+ *Bad = false;
+ if (Changed != NULL && List->IsFlag(DepPkg,pkgOrderList::Loop) == false)
+ *Changed = true;
+ return true;
+}
+ /*}}}*/
// PM::SmartConfigure - Perform immediate configuration of the pkg /*{{{*/
// ---------------------------------------------------------------------
/* This function tries to put the system in a state where Pkg can be configured.
- This involves checking each of Pkg's dependanies and unpacking and
- configuring packages where needed.
-
- Note on failure: This method can fail, without causing any problems.
- This can happen when using Immediate-Configure-All, SmartUnPack may call
- SmartConfigure, it may fail because of a complex dependancy situation, but
- a error will only be reported if ConfigureAll fails. This is why some of the
- messages this function reports on failure (return false;) as just warnings
- only shown when debuging*/
+ This involves checking each of Pkg's dependencies and unpacking and
+ configuring packages where needed. */
bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
{
// If this is true, only check and correct and dependencies without the Loop flag
- bool PkgLoop = List->IsFlag(Pkg,pkgOrderList::Loop);
+ bool const PkgLoop = List->IsFlag(Pkg,pkgOrderList::Loop);
if (Debug) {
VerIterator InstallVer = VerIterator(Cache,Cache[Pkg].InstallVer);
- clog << OutputInDepth(Depth) << "SmartConfigure " << Pkg.Name() << " (" << InstallVer.VerStr() << ")";
+ clog << OutputInDepth(Depth) << "SmartConfigure " << Pkg.FullName() << " (" << InstallVer.VerStr() << ")";
if (PkgLoop)
clog << " (Only Correct Dependencies)";
clog << endl;
}
VerIterator const instVer = Cache[Pkg].InstVerIter(Cache);
-
- /* Because of the ordered list, most dependencies should be unpacked,
- however if there is a loop (A depends on B, B depends on A) this will not
+
+ /* Because of the ordered list, most dependencies should be unpacked,
+ however if there is a loop (A depends on B, B depends on A) this will not
be the case, so check for dependencies before configuring. */
- bool Bad = false;
- for (DepIterator D = instVer.DependsList();
- D.end() == false; )
+ bool Bad = false, Changed = false;
+ const unsigned int max_loops = _config->FindI("APT::pkgPackageManager::MaxLoopCount", 5000);
+ unsigned int i=0;
+ std::list<DepIterator> needConfigure;
+ do
{
- // Compute a single dependency element (glob or)
- pkgCache::DepIterator Start;
- pkgCache::DepIterator End;
- D.GlobOr(Start,End);
-
- if (End->Type == pkgCache::Dep::Depends)
- Bad = true;
-
- // Check for dependanices that have not been unpacked, probably due to loops.
- while (End->Type == pkgCache::Dep::Depends) {
- PkgIterator DepPkg;
- VerIterator InstallVer;
- SPtrArray<Version *> VList = Start.AllTargets();
-
- // Check through each version of each package that could satisfy this dependancy
- for (Version **I = VList; *I != 0; I++) {
- VerIterator Ver(Cache,*I);
- DepPkg = Ver.ParentPkg();
- InstallVer = VerIterator(Cache,Cache[DepPkg].InstallVer);
-
- // Check if the current version of the package is avalible and will satisfy this dependancy
- if (DepPkg.CurrentVer() == Ver && List->IsNow(DepPkg) == true &&
- !List->IsFlag(DepPkg,pkgOrderList::Removed) && DepPkg.State() == PkgIterator::NeedsNothing)
+ // Check each dependency and see if anything needs to be done
+ // so that it can be configured
+ Changed = false;
+ for (DepIterator D = instVer.DependsList(); D.end() == false; )
+ {
+ // Compute a single dependency element (glob or)
+ pkgCache::DepIterator Start, End;
+ D.GlobOr(Start,End);
+
+ if (End->Type != pkgCache::Dep::Depends)
+ continue;
+ Bad = true;
+
+ // the first pass checks if we its all good, i.e. if we have
+ // to do anything at all
+ for (DepIterator Cur = Start; true; ++Cur)
+ {
+ std::unique_ptr<Version *[]> VList(Cur.AllTargets());
+
+ for (Version **I = VList.get(); *I != 0; ++I)
{
- Bad = false;
- break;
- }
-
- // Check if the version that is going to be installed will satisfy the dependancy
- if (Cache[DepPkg].InstallVer == *I) {
- if (List->IsFlag(DepPkg,pkgOrderList::UnPacked)) {
- if (List->IsFlag(DepPkg,pkgOrderList::Loop) && PkgLoop) {
- // This dependancy has already been dealt with by another SmartConfigure on Pkg
- Bad = false;
- break;
- } else if (List->IsFlag(Pkg,pkgOrderList::Loop)) {
- /* Check for a loop to prevent one forming
- If A depends on B and B depends on A, SmartConfigure will
- just hop between them if this is not checked. Dont remove the
- loop flag after finishing however as loop is already set.
- This means that there is another SmartConfigure call for this
- package and it will remove the loop flag */
- Bad = !SmartConfigure(DepPkg, Depth + 1);
- } else {
- /* Check for a loop to prevent one forming
- If A depends on B and B depends on A, SmartConfigure will
- just hop between them if this is not checked */
- List->Flag(Pkg,pkgOrderList::Loop);
- Bad = !SmartConfigure(DepPkg, Depth + 1);
- List->RmFlag(Pkg,pkgOrderList::Loop);
- }
- // If SmartConfigure was succesfull, Bad is false, so break
- if (!Bad) break;
- } else if (List->IsFlag(DepPkg,pkgOrderList::Configured)) {
- Bad = false;
- break;
+ VerIterator Ver(Cache,*I);
+ PkgIterator DepPkg = Ver.ParentPkg();
+
+ // Check if the current version of the package is available and will satisfy this dependency
+ if (DepPkg.CurrentVer() == Ver && List->IsNow(DepPkg) == true &&
+ List->IsFlag(DepPkg,pkgOrderList::Removed) == false &&
+ DepPkg.State() == PkgIterator::NeedsNothing &&
+ (Cache[DepPkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall)
+ {
+ Bad = false;
+ break;
+ }
+
+ // Check if the version that is going to be installed will satisfy the dependency
+ if (Cache[DepPkg].InstallVer != *I || List->IsNow(DepPkg) == false)
+ continue;
+
+ if (PkgLoop == true)
+ {
+ if (Debug)
+ std::clog << OutputInDepth(Depth) << "Package " << Pkg << " loops in SmartConfigure";
+ if (List->IsFlag(DepPkg,pkgOrderList::UnPacked))
+ Bad = false;
+ else if (Debug)
+ std::clog << ", but it isn't unpacked yet";
+ if (Debug)
+ std::clog << std::endl;
}
}
- }
-
- /* If the dependany is still not satisfied, try, if possible, unpacking a package to satisfy it */
- if (InstallVer != 0 && Bad) {
- if (List->IsNow(DepPkg)) {
- Bad = false;
- if (List->IsFlag(Pkg,pkgOrderList::Loop))
+
+ if (Cur == End || Bad == false)
+ break;
+ }
+
+ // this dependency is in a good state, so we can stop
+ if (Bad == false)
+ {
+ if (Debug)
+ std::clog << OutputInDepth(Depth) << "Found ok dep " << Start.TargetPkg() << std::endl;
+ continue;
+ }
+
+ // Check for dependencies that have not been unpacked,
+ // probably due to loops.
+ for (DepIterator Cur = Start; true; ++Cur)
+ {
+ std::unique_ptr<Version *[]> VList(Cur.AllTargets());
+
+ for (Version **I = VList.get(); *I != 0; ++I)
+ {
+ VerIterator Ver(Cache,*I);
+ PkgIterator DepPkg = Ver.ParentPkg();
+
+ // Check if the current version of the package is available and will satisfy this dependency
+ if (DepPkg.CurrentVer() == Ver && List->IsNow(DepPkg) == true &&
+ List->IsFlag(DepPkg,pkgOrderList::Removed) == false &&
+ DepPkg.State() == PkgIterator::NeedsNothing &&
+ (Cache[DepPkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall)
+ continue;
+
+ // Check if the version that is going to be installed will satisfy the dependency
+ if (Cache[DepPkg].InstallVer != *I || List->IsNow(DepPkg) == false)
+ continue;
+
+ if (PkgLoop == true)
{
if (Debug)
- std::clog << OutputInDepth(Depth) << "Package " << Pkg << " loops in SmartConfigure" << std::endl;
+ std::clog << OutputInDepth(Depth) << "Package " << Pkg << " loops in SmartConfigure";
+ if (List->IsFlag(DepPkg,pkgOrderList::UnPacked))
+ Bad = false;
+ else if (Debug)
+ std::clog << ", but it isn't unpacked yet";
+ if (Debug)
+ std::clog << std::endl;
}
else
{
- List->Flag(Pkg,pkgOrderList::Loop);
if (Debug)
- cout << OutputInDepth(Depth) << "Unpacking " << DepPkg.Name() << " to avoid loop" << endl;
- SmartUnPack(DepPkg, true, Depth + 1);
- List->RmFlag(Pkg,pkgOrderList::Loop);
+ clog << OutputInDepth(Depth) << "Unpacking " << DepPkg.FullName() << " to avoid loop " << Cur << endl;
+ if (NonLoopingSmart(UNPACK_IMMEDIATE, Pkg, DepPkg, Depth, PkgLoop, &Bad, &Changed) == false)
+ return false;
}
+ // at this point we either unpacked a Dep or we are in a loop,
+ // no need to unpack a second one
+ break;
}
+
+ if (Cur == End || Bad == false)
+ break;
}
-
- if (Start==End) {
- if (Bad && Debug && List->IsFlag(DepPkg,pkgOrderList::Loop) == false)
- std::clog << OutputInDepth(Depth) << "Could not satisfy dependencies for " << Pkg.Name() << std::endl;
- break;
- } else {
- Start++;
+
+ if (Bad == false)
+ continue;
+
+ needConfigure.push_back(Start);
+ }
+ if (i++ > max_loops)
+ return _error->Error("Internal error: MaxLoopCount reached in SmartUnPack (1) for %s, aborting", Pkg.FullName().c_str());
+ } while (Changed == true);
+
+ // now go over anything that needs configuring
+ Bad = false, Changed = false, i = 0;
+ do
+ {
+ Changed = false;
+ for (std::list<DepIterator>::const_iterator D = needConfigure.begin(); D != needConfigure.end(); ++D)
+ {
+ // Compute a single dependency element (glob or) without modifying D
+ pkgCache::DepIterator Start, End;
+ {
+ pkgCache::DepIterator Discard = *D;
+ Discard.GlobOr(Start,End);
+ }
+
+ if (End->Type != pkgCache::Dep::Depends)
+ continue;
+ Bad = true;
+
+ // Search for dependencies which are unpacked but aren't configured yet (maybe loops)
+ for (DepIterator Cur = Start; true; ++Cur)
+ {
+ std::unique_ptr<Version *[]> VList(Cur.AllTargets());
+
+ for (Version **I = VList.get(); *I != 0; ++I)
+ {
+ VerIterator Ver(Cache,*I);
+ PkgIterator DepPkg = Ver.ParentPkg();
+
+ // Check if the version that is going to be installed will satisfy the dependency
+ if (Cache[DepPkg].InstallVer != *I)
+ continue;
+
+ if (List->IsFlag(DepPkg,pkgOrderList::UnPacked))
+ {
+ if (List->IsFlag(DepPkg,pkgOrderList::Loop) && PkgLoop)
+ {
+ // This dependency has already been dealt with by another SmartConfigure on Pkg
+ Bad = false;
+ break;
+ }
+ if (Debug)
+ std::clog << OutputInDepth(Depth) << "Configure already unpacked " << DepPkg << std::endl;
+ if (NonLoopingSmart(CONFIGURE, Pkg, DepPkg, Depth, PkgLoop, &Bad, &Changed) == false)
+ return false;
+ break;
+
+ }
+ else if (List->IsFlag(DepPkg,pkgOrderList::Configured))
+ {
+ Bad = false;
+ break;
+ }
+ }
+ if (Cur == End || Bad == false)
+ break;
}
+
+
+ if (Bad == true && Changed == false && Debug == true)
+ std::clog << OutputInDepth(Depth) << "Could not satisfy " << *D << std::endl;
}
- }
-
- if (Bad) {
- if (Debug)
- _error->Warning(_("Could not configure '%s'. "),Pkg.Name());
+ if (i++ > max_loops)
+ return _error->Error("Internal error: MaxLoopCount reached in SmartUnPack (2) for %s, aborting", Pkg.FullName().c_str());
+ } while (Changed == true);
+
+ if (Bad == true)
+ return _error->Error(_("Could not configure '%s'. "),Pkg.FullName().c_str());
+
+ // Check for reverse conflicts.
+ if (CheckRBreaks(Pkg,Pkg.RevDependsList(), instVer.VerStr()) == false)
return false;
- }
-
+
+ for (PrvIterator P = instVer.ProvidesList(); P.end() == false; ++P)
+ if (Pkg->Group != P.OwnerPkg()->Group)
+ CheckRBreaks(Pkg,P.ParentPkg().RevDependsList(),P.ProvideVersion());
+
if (PkgLoop) return true;
static std::string const conf = _config->Find("PackageManager::Configure","all");
static bool const ConfigurePkgs = (conf == "all" || conf == "smart");
- if (List->IsFlag(Pkg,pkgOrderList::Configured))
- return _error->Error("Internal configure error on '%s'.", Pkg.Name());
+ if (List->IsFlag(Pkg,pkgOrderList::Configured))
+ return _error->Error("Internal configure error on '%s'.", Pkg.FullName().c_str());
if (ConfigurePkgs == true && Configure(Pkg) == false)
return false;
P.end() == false; P = Pkg.Group().NextPkg(P))
{
if (Pkg == P || List->IsFlag(P,pkgOrderList::Configured) == true ||
+ List->IsFlag(P,pkgOrderList::UnPacked) == false ||
Cache[P].InstallVer == 0 || (P.CurrentVer() == Cache[P].InstallVer &&
(Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall))
continue;
- SmartConfigure(P, (Depth +1));
+ if (SmartConfigure(P, (Depth +1)) == false)
+ return false;
}
// Sanity Check
if (List->IsFlag(Pkg,pkgOrderList::Configured) == false)
- return _error->Error(_("Could not configure '%s'. "),Pkg.Name());
+ return _error->Error(_("Could not configure '%s'. "),Pkg.FullName().c_str());
return true;
}
// ---------------------------------------------------------------------
/* This is called to deal with conflicts arising from unpacking */
bool pkgPackageManager::EarlyRemove(PkgIterator Pkg)
+{
+ return EarlyRemove(Pkg, NULL);
+}
+bool pkgPackageManager::EarlyRemove(PkgIterator Pkg, DepIterator const * const Dep)
{
if (List->IsNow(Pkg) == false)
return true;
-
+
// Already removed it
if (List->IsFlag(Pkg,pkgOrderList::Removed) == true)
return true;
-
+
// Woops, it will not be re-installed!
if (List->IsFlag(Pkg,pkgOrderList::InList) == false)
return false;
+ // these breaks on M-A:same packages can be dealt with. They 'loop' by design
+ if (Dep != NULL && (*Dep)->Type == pkgCache::Dep::DpkgBreaks && Dep->IsMultiArchImplicit() == true)
+ return true;
+
// Essential packages get special treatment
bool IsEssential = false;
if ((Pkg->Flags & pkgCache::Flag::Essential) != 0 ||
(Pkg->Flags & pkgCache::Flag::Important) != 0)
IsEssential = true;
- /* Check for packages that are the dependents of essential packages and
+ /* Check for packages that are the dependents of essential packages and
promote them too */
if (Pkg->CurrentVer != 0)
{
- for (DepIterator D = Pkg.RevDependsList(); D.end() == false &&
+ for (pkgCache::DepIterator D = Pkg.RevDependsList(); D.end() == false &&
IsEssential == false; ++D)
if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends)
if ((D.ParentPkg()->Flags & pkgCache::Flag::Essential) != 0 ||
"removing the essential package %s due to a "
"Conflicts/Pre-Depends loop. This is often bad, "
"but if you really want to do it, activate the "
- "APT::Force-LoopBreak option."),Pkg.Name());
+ "APT::Force-LoopBreak option."),Pkg.FullName().c_str());
}
-
+ // dpkg will auto-deconfigure it, no need for the big remove hammer
+ else if (Dep != NULL && (*Dep)->Type == pkgCache::Dep::DpkgBreaks)
+ return true;
+
bool Res = SmartRemove(Pkg);
if (Cache[Pkg].Delete() == false)
List->Flag(Pkg,pkgOrderList::Removed,pkgOrderList::States);
-
+
return Res;
}
/*}}}*/
/*}}}*/
// PM::SmartUnPack - Install helper /*{{{*/
// ---------------------------------------------------------------------
-/* This puts the system in a state where it can Unpack Pkg, if Pkg is allready
+/* This puts the system in a state where it can Unpack Pkg, if Pkg is already
unpacked, or when it has been unpacked, if Immediate==true it configures it. */
bool pkgPackageManager::SmartUnPack(PkgIterator Pkg)
{
bool PkgLoop = List->IsFlag(Pkg,pkgOrderList::Loop);
if (Debug) {
- clog << OutputInDepth(Depth) << "SmartUnPack " << Pkg.Name();
+ clog << OutputInDepth(Depth) << "SmartUnPack " << Pkg.FullName();
VerIterator InstallVer = VerIterator(Cache,Cache[Pkg].InstallVer);
if (Pkg.CurrentVer() == 0)
- cout << " (install version " << InstallVer.VerStr() << ")";
+ clog << " (install version " << InstallVer.VerStr() << ")";
else
- cout << " (replace version " << Pkg.CurrentVer().VerStr() << " with " << InstallVer.VerStr() << ")";
+ clog << " (replace version " << Pkg.CurrentVer().VerStr() << " with " << InstallVer.VerStr() << ")";
if (PkgLoop)
- cout << " (Only Perform PreUnpack Checks)";
- cout << endl;
+ clog << " (Only Perform PreUnpack Checks)";
+ if (Immediate)
+ clog << " immediately";
+ clog << endl;
}
VerIterator const instVer = Cache[Pkg].InstVerIter(Cache);
- /* PreUnpack Checks: This loop checks and attempts to rectify and problems that would prevent the package being unpacked.
- It addresses: PreDepends, Conflicts, Obsoletes and Breaks (DpkgBreaks). Any resolutions that do not require it should
+ /* PreUnpack Checks: This loop checks and attempts to rectify any problems that would prevent the package being unpacked.
+ It addresses: PreDepends, Conflicts, Obsoletes and Breaks (DpkgBreaks). Any resolutions that do not require it should
avoid configuration (calling SmartUnpack with Immediate=true), this is because when unpacking some packages with
- complex dependancy structures, trying to configure some packages while breaking the loops can complicate things .
- This will be either dealt with if the package is configured as a dependency of Pkg (if and when Pkg is configured),
+ complex dependency structures, trying to configure some packages while breaking the loops can complicate things.
+ This will be either dealt with if the package is configured as a dependency of Pkg (if and when Pkg is configured),
or by the ConfigureAll call at the end of the for loop in OrderInstall. */
- for (DepIterator D = instVer.DependsList();
- D.end() == false; )
+ bool SomethingBad = false, Changed = false;
+ bool couldBeTemporaryRemoved = Depth != 0 && List->IsFlag(Pkg,pkgOrderList::Removed) == false;
+ const unsigned int max_loops = _config->FindI("APT::pkgPackageManager::MaxLoopCount", 5000);
+ unsigned int i = 0;
+ do
{
- // Compute a single dependency element (glob or)
- pkgCache::DepIterator Start;
- pkgCache::DepIterator End;
- D.GlobOr(Start,End);
-
- while (End->Type == pkgCache::Dep::PreDepends)
+ Changed = false;
+ for (DepIterator D = instVer.DependsList(); D.end() == false; )
{
- if (Debug)
- clog << OutputInDepth(Depth) << "PreDepends order for " << Pkg.Name() << std::endl;
+ // Compute a single dependency element (glob or)
+ pkgCache::DepIterator Start, End;
+ D.GlobOr(Start,End);
- // Look for possible ok targets.
- SPtrArray<Version *> VList = Start.AllTargets();
- bool Bad = true;
- for (Version **I = VList; *I != 0 && Bad == true; I++)
- {
- VerIterator Ver(Cache,*I);
- PkgIterator Pkg = Ver.ParentPkg();
-
- // See if the current version is ok
- if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true &&
- Pkg.State() == PkgIterator::NeedsNothing)
- {
- Bad = false;
- if (Debug)
- clog << OutputInDepth(Depth) << "Found ok package " << Pkg.Name() << endl;
- continue;
- }
- }
-
- // Look for something that could be configured.
- for (Version **I = VList; *I != 0 && Bad == true; I++)
- {
- VerIterator Ver(Cache,*I);
- PkgIterator Pkg = Ver.ParentPkg();
-
- // Not the install version
- if (Cache[Pkg].InstallVer != *I ||
- (Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing))
- continue;
-
- if (List->IsFlag(Pkg,pkgOrderList::Configured)) {
- Bad = false;
- continue;
- }
+ if (End->Type == pkgCache::Dep::PreDepends)
+ {
+ bool Bad = true;
+ if (Debug)
+ clog << OutputInDepth(Depth) << "PreDepends order for " << Pkg.FullName() << std::endl;
- // check if it needs unpack or if if configure is enough
- if (!List->IsFlag(Pkg,pkgOrderList::UnPacked))
- {
- if (Debug)
- clog << OutputInDepth(Depth) << "Trying to SmartUnpack " << Pkg.Name() << endl;
- // SmartUnpack with the ImmediateFlag to ensure its really ready
- Bad = !SmartUnPack(Pkg, true, Depth + 1);
- } else {
- if (Debug)
- clog << OutputInDepth(Depth) << "Trying to SmartConfigure " << Pkg.Name() << endl;
- Bad = !SmartConfigure(Pkg, Depth + 1);
- }
- }
+ // Look for easy targets: packages that are already okay
+ for (DepIterator Cur = Start; Bad == true; ++Cur)
+ {
+ std::unique_ptr<Version *[]> VList(Cur.AllTargets());
+ for (Version **I = VList.get(); *I != 0; ++I)
+ {
+ VerIterator Ver(Cache,*I);
+ PkgIterator Pkg = Ver.ParentPkg();
- /* If this or element did not match then continue on to the
- next or element until a matching element is found */
- if (Bad == true)
- {
- // This triggers if someone make a pre-depends/depend loop.
- if (Start == End)
- return _error->Error("Couldn't configure pre-depend %s for %s, "
- "probably a dependency cycle.",
- End.TargetPkg().Name(),Pkg.Name());
- ++Start;
- }
- else
- break;
- }
-
- if (End->Type == pkgCache::Dep::Conflicts ||
- End->Type == pkgCache::Dep::Obsoletes)
- {
- /* Look for conflicts. Two packages that are both in the install
- state cannot conflict so we don't check.. */
- SPtrArray<Version *> VList = End.AllTargets();
- for (Version **I = VList; *I != 0; I++)
- {
- VerIterator Ver(Cache,*I);
- PkgIterator ConflictPkg = Ver.ParentPkg();
- VerIterator InstallVer(Cache,Cache[ConflictPkg].InstallVer);
-
- // See if the current version is conflicting
- if (ConflictPkg.CurrentVer() == Ver && List->IsNow(ConflictPkg))
- {
- cout << OutputInDepth(Depth) << Pkg.Name() << " conflicts with " << ConflictPkg.Name() << endl;
- /* If a loop is not present or has not yet been detected, attempt to unpack packages
- to resolve this conflict. If there is a loop present, remove packages to resolve this conflict */
- if (!List->IsFlag(ConflictPkg,pkgOrderList::Loop)) {
- if (Cache[ConflictPkg].Keep() == 0 && Cache[ConflictPkg].InstallVer != 0) {
- if (Debug)
- cout << OutputInDepth(Depth) << OutputInDepth(Depth) << "Unpacking " << ConflictPkg.Name() << " to prevent conflict" << endl;
- List->Flag(Pkg,pkgOrderList::Loop);
- SmartUnPack(ConflictPkg,false, Depth + 1);
- // Remove loop to allow it to be used later if needed
- List->RmFlag(Pkg,pkgOrderList::Loop);
- } else {
- if (EarlyRemove(ConflictPkg) == false)
- return _error->Error("Internal Error, Could not early remove %s",ConflictPkg.Name());
- }
- } else {
- if (!List->IsFlag(ConflictPkg,pkgOrderList::Removed)) {
- if (Debug)
- cout << OutputInDepth(Depth) << "Because of conficts knot, removing " << ConflictPkg.Name() << " to conflict violation" << endl;
- if (EarlyRemove(ConflictPkg) == false)
- return _error->Error("Internal Error, Could not early remove %s",ConflictPkg.Name());
- }
+ // See if the current version is ok
+ if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true &&
+ Pkg.State() == PkgIterator::NeedsNothing &&
+ (Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall)
+ {
+ Bad = false;
+ if (Debug)
+ clog << OutputInDepth(Depth) << "Found ok package " << Pkg.FullName() << endl;
+ break;
+ }
}
+ if (Cur == End)
+ break;
}
- }
- }
-
- // Check for breaks
- if (End->Type == pkgCache::Dep::DpkgBreaks) {
- SPtrArray<Version *> VList = End.AllTargets();
- for (Version **I = VList; *I != 0; I++)
- {
- VerIterator Ver(Cache,*I);
- PkgIterator BrokenPkg = Ver.ParentPkg();
- if (BrokenPkg.CurrentVer() != Ver)
+
+ // Look for something that could be configured.
+ for (DepIterator Cur = Start; Bad == true && Cur.end() == false; ++Cur)
{
- if (Debug)
- std::clog << OutputInDepth(Depth) << " Ignore not-installed version " << Ver.VerStr() << " of " << Pkg.FullName() << " for " << End << std::endl;
- continue;
- }
+ std::unique_ptr<Version *[]> VList(Cur.AllTargets());
+ for (Version **I = VList.get(); *I != 0; ++I)
+ {
+ VerIterator Ver(Cache,*I);
+ PkgIterator DepPkg = Ver.ParentPkg();
- // Check if it needs to be unpacked
- if (List->IsFlag(BrokenPkg,pkgOrderList::InList) && Cache[BrokenPkg].Delete() == false &&
- List->IsNow(BrokenPkg)) {
- if (List->IsFlag(BrokenPkg,pkgOrderList::Loop) && PkgLoop) {
- // This dependancy has already been dealt with by another SmartUnPack on Pkg
- break;
- } else {
- // Found a break, so see if we can unpack the package to avoid it
- // but do not set loop if another SmartUnPack already deals with it
- VerIterator InstallVer(Cache,Cache[BrokenPkg].InstallVer);
- bool circle = false;
- for (pkgCache::DepIterator D = InstallVer.DependsList(); D.end() == false; ++D)
+ // Not the install version
+ if (Cache[DepPkg].InstallVer != *I)
+ continue;
+
+ if (Cache[DepPkg].Keep() == true && DepPkg.State() == PkgIterator::NeedsNothing &&
+ (Cache[DepPkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall)
+ continue;
+
+ if (List->IsFlag(DepPkg,pkgOrderList::Configured))
{
- if (D->Type != pkgCache::Dep::PreDepends)
- continue;
- SPtrArray<Version *> VL = D.AllTargets();
- for (Version **I = VL; *I != 0; ++I)
+ Bad = false;
+ break;
+ }
+
+ // check if it needs unpack or if if configure is enough
+ if (List->IsFlag(DepPkg,pkgOrderList::UnPacked) == false)
+ {
+ // two packages pre-depending on each other can't be handled sanely
+ if (List->IsFlag(DepPkg,pkgOrderList::Loop) && PkgLoop)
{
- VerIterator V(Cache,*I);
- PkgIterator P = V.ParentPkg();
- // we are checking for installation as an easy 'protection' against or-groups and (unchosen) providers
- if (P->CurrentVer == 0 || P != Pkg || (P.CurrentVer() != V && Cache[P].InstallVer != V))
- continue;
- circle = true;
- break;
+ // this isn't an error as there is potential for something else to satisfy it
+ // (like a provides or an or-group member)
+ if (Debug)
+ clog << OutputInDepth(Depth) << "Unpack loop detected between " << DepPkg.FullName() << " and " << Pkg.FullName() << endl;
+ continue;
}
- if (circle == true)
- break;
+
+ if (Debug)
+ clog << OutputInDepth(Depth) << "Trying to SmartUnpack " << DepPkg.FullName() << endl;
+ if (NonLoopingSmart(UNPACK_IMMEDIATE, Pkg, DepPkg, Depth, PkgLoop, &Bad, &Changed) == false)
+ return false;
}
- if (circle == true)
+ else
+ {
+ if (Debug)
+ clog << OutputInDepth(Depth) << "Trying to SmartConfigure " << DepPkg.FullName() << endl;
+ if (NonLoopingSmart(CONFIGURE, Pkg, DepPkg, Depth, PkgLoop, &Bad, &Changed) == false)
+ return false;
+ }
+ break;
+ }
+ }
+
+ if (Bad == true)
+ SomethingBad = true;
+ }
+ else if (End->Type == pkgCache::Dep::Conflicts ||
+ End->Type == pkgCache::Dep::Obsoletes ||
+ End->Type == pkgCache::Dep::DpkgBreaks)
+ {
+ std::unique_ptr<Version *[]> VList(End.AllTargets());
+ for (Version **I = VList.get(); *I != 0; ++I)
+ {
+ VerIterator Ver(Cache,*I);
+ PkgIterator ConflictPkg = Ver.ParentPkg();
+ if (ConflictPkg.CurrentVer() != Ver)
+ {
+ if (Debug)
+ std::clog << OutputInDepth(Depth) << "Ignore not-installed version " << Ver.VerStr() << " of " << ConflictPkg.FullName() << " for " << End << std::endl;
+ continue;
+ }
+
+ if (List->IsNow(ConflictPkg) == false)
+ {
+ if (Debug)
+ std::clog << OutputInDepth(Depth) << "Ignore already dealt-with version " << Ver.VerStr() << " of " << ConflictPkg.FullName() << " for " << End << std::endl;
+ continue;
+ }
+
+ if (List->IsFlag(ConflictPkg,pkgOrderList::Removed) == true)
+ {
+ if (Debug)
+ clog << OutputInDepth(Depth) << "Ignoring " << End << " as " << ConflictPkg.FullName() << "was temporarily removed" << endl;
+ continue;
+ }
+
+ if (List->IsFlag(ConflictPkg,pkgOrderList::Loop) && PkgLoop)
+ {
+ if (End->Type == pkgCache::Dep::DpkgBreaks && End.IsMultiArchImplicit() == true)
{
if (Debug)
- cout << OutputInDepth(Depth) << " Avoiding " << End << " avoided as " << BrokenPkg.FullName() << " has a pre-depends on " << Pkg.FullName() << std::endl;
+ clog << OutputInDepth(Depth) << "Because dependency is MultiArchImplicit we ignored looping on: " << ConflictPkg << endl;
continue;
}
- else
+ if (Debug)
+ {
+ if (End->Type == pkgCache::Dep::DpkgBreaks)
+ clog << OutputInDepth(Depth) << "Because of breaks knot, deconfigure " << ConflictPkg.FullName() << " temporarily" << endl;
+ else
+ clog << OutputInDepth(Depth) << "Because of conflict knot, removing " << ConflictPkg.FullName() << " temporarily" << endl;
+ }
+ if (EarlyRemove(ConflictPkg, &End) == false)
+ return _error->Error("Internal Error, Could not early remove %s (%d)",ConflictPkg.FullName().c_str(), 3);
+ SomethingBad = true;
+ continue;
+ }
+
+ if (Cache[ConflictPkg].Delete() == false)
+ {
+ if (Debug)
+ {
+ clog << OutputInDepth(Depth) << "Unpacking " << ConflictPkg.FullName() << " to avoid " << End;
+ if (PkgLoop == true)
+ clog << " (Looping)";
+ clog << std::endl;
+ }
+ // we would like to avoid temporary removals and all that at best via a simple unpack
+ _error->PushToStack();
+ if (NonLoopingSmart(UNPACK, Pkg, ConflictPkg, Depth, PkgLoop, NULL, &Changed) == false)
{
+ // but if it fails ignore this failure and look for alternative ways of solving
if (Debug)
{
- cout << OutputInDepth(Depth) << " Unpacking " << BrokenPkg.FullName() << " to avoid " << End;
- if (PkgLoop == true)
- cout << " (Looping)";
- cout << std::endl;
+ clog << OutputInDepth(Depth) << "Avoidance unpack of " << ConflictPkg.FullName() << " failed for " << End << " ignoring:" << std::endl;
+ _error->DumpErrors(std::clog, GlobalError::DEBUG, false);
+ }
+ _error->RevertToStack();
+ // ignorance can only happen if a) one of the offenders is already gone
+ if (List->IsFlag(ConflictPkg,pkgOrderList::Removed) == true)
+ {
+ if (Debug)
+ clog << OutputInDepth(Depth) << "But " << ConflictPkg.FullName() << " was temporarily removed in the meantime to satisfy " << End << endl;
+ }
+ else if (List->IsFlag(Pkg,pkgOrderList::Removed) == true)
+ {
+ if (Debug)
+ clog << OutputInDepth(Depth) << "But " << Pkg.FullName() << " was temporarily removed in the meantime to satisfy " << End << endl;
+ }
+ // or b) we can make one go (removal or dpkg auto-deconfigure)
+ else
+ {
+ if (Debug)
+ clog << OutputInDepth(Depth) << "So temprorary remove/deconfigure " << ConflictPkg.FullName() << " to satisfy " << End << endl;
+ if (EarlyRemove(ConflictPkg, &End) == false)
+ return _error->Error("Internal Error, Could not early remove %s (%d)",ConflictPkg.FullName().c_str(), 2);
}
- if (PkgLoop == false)
- List->Flag(Pkg,pkgOrderList::Loop);
- SmartUnPack(BrokenPkg, false, Depth + 1);
- if (PkgLoop == false)
- List->RmFlag(Pkg,pkgOrderList::Loop);
}
+ else
+ _error->MergeWithStack();
}
- } else {
- // Check if a package needs to be removed
- if (Cache[BrokenPkg].Delete() == true && !List->IsFlag(BrokenPkg,pkgOrderList::Configured))
+ else
{
if (Debug)
- cout << OutputInDepth(Depth) << " Removing " << BrokenPkg.Name() << " to avoid " << End << endl;
- SmartRemove(BrokenPkg);
+ clog << OutputInDepth(Depth) << "Removing " << ConflictPkg.FullName() << " now to avoid " << End << endl;
+ // no earlyremove() here as user has already agreed to the permanent removal
+ if (SmartRemove(Pkg) == false)
+ return _error->Error("Internal Error, Could not early remove %s (%d)",ConflictPkg.FullName().c_str(), 1);
}
}
}
}
+ if (i++ > max_loops)
+ return _error->Error("Internal error: APT::pkgPackageManager::MaxLoopCount reached in SmartConfigure for %s, aborting", Pkg.FullName().c_str());
+ } while (Changed == true);
+
+ if (SomethingBad == true)
+ return _error->Error("Couldn't configure %s, probably a dependency cycle.", Pkg.FullName().c_str());
+
+ if (couldBeTemporaryRemoved == true && List->IsFlag(Pkg,pkgOrderList::Removed) == true)
+ {
+ if (Debug)
+ std::clog << OutputInDepth(Depth) << "Prevent unpack as " << Pkg << " is currently temporarily removed" << std::endl;
+ return true;
}
-
+
// Check for reverse conflicts.
if (CheckRConflicts(Pkg,Pkg.RevDependsList(),
instVer.VerStr()) == false)
This way we avoid that M-A: enabled packages are installed before
their older non-M-A enabled packages are replaced by newer versions */
bool const installed = Pkg->CurrentVer != 0;
- if (installed == true && Install(Pkg,FileNames[Pkg->ID]) == false)
+ if (installed == true &&
+ (instVer != Pkg.CurrentVer() ||
+ ((Cache[Pkg].iFlags & pkgDepCache::ReInstall) == pkgDepCache::ReInstall)) &&
+ Install(Pkg,FileNames[Pkg->ID]) == false)
return false;
for (PkgIterator P = Pkg.Group().PackageList();
P.end() == false; P = Pkg.Group().NextPkg(P))
P.end() == false; P = Pkg.Group().NextPkg(P))
{
if (P->CurrentVer != 0 || P == Pkg || List->IsFlag(P,pkgOrderList::UnPacked) == true ||
+ List->IsFlag(P,pkgOrderList::Configured) == true ||
Cache[P].InstallVer == 0 || (P.CurrentVer() == Cache[P].InstallVer &&
(Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall))
continue;
}
}
// packages which are already unpacked don't need to be unpacked again
- else if (Pkg.State() != pkgCache::PkgIterator::NeedsConfigure && Install(Pkg,FileNames[Pkg->ID]) == false)
+ else if ((instVer != Pkg.CurrentVer() ||
+ ((Cache[Pkg].iFlags & pkgDepCache::ReInstall) == pkgDepCache::ReInstall)) &&
+ Install(Pkg,FileNames[Pkg->ID]) == false)
return false;
if (Immediate == true) {
// Perform immedate configuration of the package.
if (SmartConfigure(Pkg, Depth + 1) == false)
- _error->Warning(_("Could not perform immediate configuration on '%s'. "
- "Please see man 5 apt.conf under APT::Immediate-Configure for details. (%d)"),Pkg.Name(),2);
+ _error->Error(_("Could not perform immediate configuration on '%s'. "
+ "Please see man 5 apt.conf under APT::Immediate-Configure for details. (%d)"),Pkg.FullName().c_str(),2);
}
return true;
for (pkgOrderList::iterator I = List->begin(); I != List->end(); ++I)
{
PkgIterator Pkg(Cache,*I);
-
+
if (List->IsNow(Pkg) == false)
{
- if (!List->IsFlag(Pkg,pkgOrderList::Configured) && !NoImmConfigure) {
- if (SmartConfigure(Pkg, 0) == false && Debug)
- _error->Warning("Internal Error, Could not configure %s",Pkg.Name());
- // FIXME: The above warning message might need changing
- } else {
- if (Debug == true)
- clog << "Skipping already done " << Pkg.Name() << endl;
- }
+ if (Debug == true)
+ clog << "Skipping already done " << Pkg.FullName() << endl;
continue;
-
}
-
+
if (List->IsMissing(Pkg) == true)
{
if (Debug == true)
- clog << "Sequence completed at " << Pkg.Name() << endl;
+ clog << "Sequence completed at " << Pkg.FullName() << endl;
if (DoneSomething == false)
{
_error->Error("Internal Error, ordering was unable to handle the media swap");
Pkg.State() == pkgCache::PkgIterator::NeedsNothing &&
(Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall)
{
- _error->Error("Internal Error, trying to manipulate a kept package (%s)",Pkg.Name());
+ _error->Error("Internal Error, trying to manipulate a kept package (%s)",Pkg.FullName().c_str());
return Failed;
}
DoneSomething = true;
if (ImmConfigureAll) {
- /* ConfigureAll here to pick up and packages left unconfigured becuase they were unpacked in the
+ /* ConfigureAll here to pick up and packages left unconfigured because they were unpacked in the
"PreUnpack Checks" section */
if (!ConfigureAll())
return Failed;
if (List->IsFlag(*I,pkgOrderList::Configured) == false)
{
_error->Error("Internal error, packages left unconfigured. %s",
- PkgIterator(Cache,*I).Name());
+ PkgIterator(Cache,*I).FullName().c_str());
return Failed;
}
}
return Completed;
+}
+// PM::DoInstallPostFork - compat /*{{{*/
+// ---------------------------------------------------------------------
+ /*}}}*/
+pkgPackageManager::OrderResult
+pkgPackageManager::DoInstallPostFork(int statusFd)
+{
+ APT::Progress::PackageManager *progress = new
+ APT::Progress::PackageManagerProgressFd(statusFd);
+ pkgPackageManager::OrderResult res = DoInstallPostFork(progress);
+ delete progress;
+ return res;
}
/*}}}*/
// PM::DoInstallPostFork - Does install part that happens after the fork /*{{{*/
// ---------------------------------------------------------------------
pkgPackageManager::OrderResult
-pkgPackageManager::DoInstallPostFork(int statusFd)
+pkgPackageManager::DoInstallPostFork(APT::Progress::PackageManager *progress)
{
- if(statusFd > 0)
- // FIXME: use SetCloseExec here once it taught about throwing
- // exceptions instead of doing _exit(100) on failure
- fcntl(statusFd,F_SETFD,FD_CLOEXEC);
- bool goResult = Go(statusFd);
- if(goResult == false)
- return Failed;
-
- return Res;
-};
-
+ bool goResult = Go(progress);
+ if(goResult == false)
+ return Failed;
+
+ return Res;
+}
+ /*}}}*/
+// PM::DoInstall - Does the installation /*{{{*/
+// ---------------------------------------------------------------------
+/* compat */
+pkgPackageManager::OrderResult
+pkgPackageManager::DoInstall(int statusFd)
+{
+ APT::Progress::PackageManager *progress = new
+ APT::Progress::PackageManagerProgressFd(statusFd);
+ OrderResult res = DoInstall(progress);
+ delete progress;
+ return res;
+ }
+ /*}}}*/
// PM::DoInstall - Does the installation /*{{{*/
// ---------------------------------------------------------------------
/* This uses the filenames in FileNames and the information in the
DepCache to perform the installation of packages.*/
-pkgPackageManager::OrderResult pkgPackageManager::DoInstall(int statusFd)
+pkgPackageManager::OrderResult
+pkgPackageManager::DoInstall(APT::Progress::PackageManager *progress)
{
if(DoInstallPreFork() == Failed)
return Failed;
- return DoInstallPostFork(statusFd);
+ return DoInstallPostFork(progress);
}
/*}}}*/
projects / apt.git / blobdiff