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authorDavid Kalnischkies <kalnischkies@gmail.com>2011-09-14 20:22:31 +0200
committerDavid Kalnischkies <kalnischkies@gmail.com>2011-09-14 20:22:31 +0200
commit75a90b93257ea81d42331c03b56bd6589c62e065 (patch)
tree0b5c7deb860eed58c40c472bb62c6fa00e281af6 /apt-pkg
parentc194970f5a852ff6c5e23804be818cedd75e9651 (diff)
parentb57257d2993aaf8c0cf9d6f0ea8ebd0208112bc5 (diff)
enable APT in unpack/configure ordering to handle loops as well
as tight dependencies between immediate packages better enabling also the possibility to mark all packages as immediate (at least Closes: #353290, #540227, #559733, #621836, #639290)
Diffstat (limited to 'apt-pkg')
-rw-r--r--apt-pkg/deb/dpkgpm.cc25
-rw-r--r--apt-pkg/deb/dpkgpm.h2
-rw-r--r--apt-pkg/orderlist.cc8
-rw-r--r--apt-pkg/orderlist.h10
-rw-r--r--apt-pkg/packagemanager.cc457
-rw-r--r--apt-pkg/packagemanager.h10
6 files changed, 344 insertions, 168 deletions
diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc
index 2c34465c0..0cc21f322 100644
--- a/apt-pkg/deb/dpkgpm.cc
+++ b/apt-pkg/deb/dpkgpm.cc
@@ -18,6 +18,7 @@
#include <apt-pkg/strutl.h>
#include <apt-pkg/fileutl.h>
#include <apt-pkg/cachefile.h>
+#include <apt-pkg/packagemanager.h>
#include <unistd.h>
#include <stdlib.h>
@@ -937,7 +938,7 @@ bool pkgDPkgPM::Go(int OutStatusFd)
// the argument list is split in a way that A depends on B
// and they are in the same "--configure A B" run
// - with the split they may now be configured in different
- // runs
+ // runs, using Immediate-Configure-All can help prevent this.
if (J - I > (signed)MaxArgs)
J = I + MaxArgs;
@@ -970,6 +971,8 @@ bool pkgDPkgPM::Go(int OutStatusFd)
snprintf(status_fd_buf,sizeof(status_fd_buf),"%i", fd[1]);
Args[n++] = status_fd_buf;
Size += strlen(Args[n-1]);
+
+ unsigned long const Op = I->Op;
switch (I->Op)
{
@@ -1079,8 +1082,13 @@ bool pkgDPkgPM::Go(int OutStatusFd)
it to all processes in the group. Since dpkg ignores the signal
it doesn't die but we do! So we must also ignore it */
sighandler_t old_SIGQUIT = signal(SIGQUIT,SIG_IGN);
- sighandler_t old_SIGINT = signal(SIGINT,SIG_IGN);
-
+ sighandler_t old_SIGINT = signal(SIGINT,SigINT);
+
+ // Check here for any SIGINT
+ if (pkgPackageManager::SigINTStop && (Op == Item::Remove || Op == Item::Purge || Op == Item::Install))
+ break;
+
+
// ignore SIGHUP as well (debian #463030)
sighandler_t old_SIGHUP = signal(SIGHUP,SIG_IGN);
@@ -1118,7 +1126,6 @@ bool pkgDPkgPM::Go(int OutStatusFd)
sigprocmask(SIG_SETMASK, &original_sigmask, 0);
}
}
-
// Fork dpkg
pid_t Child;
_config->Set("APT::Keep-Fds::",fd[1]);
@@ -1224,6 +1231,7 @@ bool pkgDPkgPM::Go(int OutStatusFd)
// Restore sig int/quit
signal(SIGQUIT,old_SIGQUIT);
signal(SIGINT,old_SIGINT);
+
signal(SIGHUP,old_SIGHUP);
return _error->Errno("waitpid","Couldn't wait for subprocess");
}
@@ -1264,6 +1272,7 @@ bool pkgDPkgPM::Go(int OutStatusFd)
// Restore sig int/quit
signal(SIGQUIT,old_SIGQUIT);
signal(SIGINT,old_SIGINT);
+
signal(SIGHUP,old_SIGHUP);
if(master >= 0)
@@ -1301,6 +1310,9 @@ bool pkgDPkgPM::Go(int OutStatusFd)
}
}
CloseLog();
+
+ if (pkgPackageManager::SigINTStop)
+ _error->Warning(_("Operation was interrupted before it could finish"));
if (RunScripts("DPkg::Post-Invoke") == false)
return false;
@@ -1325,6 +1337,11 @@ bool pkgDPkgPM::Go(int OutStatusFd)
Cache.writeStateFile(NULL);
return true;
}
+
+void SigINT(int sig) {
+ if (_config->FindB("APT::Immediate-Configure-All",false))
+ pkgPackageManager::SigINTStop = true;
+}
/*}}}*/
// pkgDpkgPM::Reset - Dump the contents of the command list /*{{{*/
// ---------------------------------------------------------------------
diff --git a/apt-pkg/deb/dpkgpm.h b/apt-pkg/deb/dpkgpm.h
index ddf9485c7..3f95c51dc 100644
--- a/apt-pkg/deb/dpkgpm.h
+++ b/apt-pkg/deb/dpkgpm.h
@@ -106,4 +106,6 @@ class pkgDPkgPM : public pkgPackageManager
virtual ~pkgDPkgPM();
};
+void SigINT(int sig);
+
#endif
diff --git a/apt-pkg/orderlist.cc b/apt-pkg/orderlist.cc
index 80d7b6619..0ac9a83e3 100644
--- a/apt-pkg/orderlist.cc
+++ b/apt-pkg/orderlist.cc
@@ -1059,8 +1059,10 @@ bool pkgOrderList::AddLoop(DepIterator D)
Loops[LoopCount++] = D;
// Mark the packages as being part of a loop.
- Flag(D.TargetPkg(),Loop);
- Flag(D.ParentPkg(),Loop);
+ //Flag(D.TargetPkg(),Loop);
+ //Flag(D.ParentPkg(),Loop);
+ /* This is currently disabled because the Loop flag is being used for
+ loop management in the package manager. Check the orderlist.h file for more info */
return true;
}
/*}}}*/
@@ -1111,7 +1113,7 @@ bool pkgOrderList::CheckDep(DepIterator D)
just needs one */
if (D.IsNegative() == false)
{
- // ignore provides by older versions of this package
+ // ignore provides by older versions of this package
if (((D.Reverse() == false && Pkg == D.ParentPkg()) ||
(D.Reverse() == true && Pkg == D.TargetPkg())) &&
Cache[Pkg].InstallVer != *I)
diff --git a/apt-pkg/orderlist.h b/apt-pkg/orderlist.h
index 264f7ba03..9588d30a5 100644
--- a/apt-pkg/orderlist.h
+++ b/apt-pkg/orderlist.h
@@ -76,7 +76,12 @@ class pkgOrderList : protected pkgCache::Namespace
typedef Package **iterator;
- // State flags
+ /* State flags
+ The Loop flag can be set on a package that is currently being processed by either SmartConfigure or
+ SmartUnPack. This allows the package manager to tell when a loop has been formed as it will try to
+ SmartUnPack or SmartConfigure a package with the Loop flag set. It will then either stop (as it knows
+ that the operation is unnecessary as its already in process), or in the case of the conflicts resolution
+ in SmartUnPack, use EarlyRemove to resolve the situation. */
enum Flags {Added = (1 << 0), AddPending = (1 << 1),
Immediate = (1 << 2), Loop = (1 << 3),
UnPacked = (1 << 4), Configured = (1 << 5),
@@ -91,6 +96,9 @@ class pkgOrderList : protected pkgCache::Namespace
void Flag(PkgIterator Pkg,unsigned long State, unsigned long F) {Flags[Pkg->ID] = (Flags[Pkg->ID] & (~F)) | State;};
inline void Flag(PkgIterator Pkg,unsigned long F) {Flags[Pkg->ID] |= F;};
inline void Flag(Package *Pkg,unsigned long F) {Flags[Pkg->ID] |= F;};
+ // RmFlag removes a flag from a package
+ inline void RmFlag(Package *Pkg,unsigned long F) {Flags[Pkg->ID] &= ~F;};
+ // IsNow will return true if the Pkg has been not been either configured or unpacked
inline bool IsNow(PkgIterator Pkg) {return (Flags[Pkg->ID] & (States & (~Removed))) == 0;};
bool IsMissing(PkgIterator Pkg);
void WipeFlags(unsigned long F);
diff --git a/apt-pkg/packagemanager.cc b/apt-pkg/packagemanager.cc
index c41a1f1ee..3cd9f6f00 100644
--- a/apt-pkg/packagemanager.cc
+++ b/apt-pkg/packagemanager.cc
@@ -31,6 +31,8 @@
/*}}}*/
using namespace std;
+bool pkgPackageManager::SigINTStop = false;
+
// PM::PackageManager - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* */
@@ -168,7 +170,11 @@ bool pkgPackageManager::CreateOrderList()
delete List;
List = new pkgOrderList(&Cache);
- static bool const NoImmConfigure = !_config->FindB("APT::Immediate-Configure",true);
+ NoImmConfigure = !_config->FindB("APT::Immediate-Configure",true);
+ ImmConfigureAll = _config->FindB("APT::Immediate-Configure-All",false);
+
+ if (Debug && ImmConfigureAll)
+ clog << "CreateOrderList(): Adding Immediate flag for all packages because of APT::Immediate-Configure-All" << endl;
// Generate the list of affected packages and sort it
for (PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
@@ -178,19 +184,21 @@ bool pkgPackageManager::CreateOrderList()
continue;
// Mark the package and its dependends for immediate configuration
- if (((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential ||
+ if ((((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential ||
(I->Flags & pkgCache::Flag::Important) == pkgCache::Flag::Important) &&
- NoImmConfigure == false)
+ NoImmConfigure == false) || ImmConfigureAll)
{
- if(Debug)
+ if(Debug && !ImmConfigureAll)
clog << "CreateOrderList(): Adding Immediate flag for " << I.Name() << endl;
List->Flag(I,pkgOrderList::Immediate);
-
- // Look for other install packages to make immediate configurea
- ImmediateAdd(I, true);
- // And again with the current version.
- ImmediateAdd(I, false);
+ if (!ImmConfigureAll) {
+ // Look for other install packages to make immediate configurea
+ ImmediateAdd(I, true);
+
+ // And again with the current version.
+ ImmediateAdd(I, false);
+ }
}
// Not interesting
@@ -258,7 +266,8 @@ bool pkgPackageManager::CheckRConflicts(PkgIterator Pkg,DepIterator D,
// PM::ConfigureAll - Run the all out configuration /*{{{*/
// ---------------------------------------------------------------------
/* This configures every package. It is assumed they are all unpacked and
- that the final configuration is valid. */
+ that the final configuration is valid. This is also used to catch packages
+ that have not been configured when using ImmConfigureAll */
bool pkgPackageManager::ConfigureAll()
{
pkgOrderList OList(&Cache);
@@ -279,9 +288,19 @@ bool pkgPackageManager::ConfigureAll()
for (pkgOrderList::iterator I = OList.begin(); I != OList.end(); ++I)
{
PkgIterator Pkg(Cache,*I);
+
+ /* Check if the package has been configured, this can happen if SmartConfigure
+ calls its self */
+ if (List->IsFlag(Pkg,pkgOrderList::Configured)) continue;
- if (ConfigurePkgs == true && Configure(Pkg) == false)
+ 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);
+ else
+ _error->Error("Internal error, packages left unconfigured. %s",Pkg.Name());
return false;
+ }
List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States);
}
@@ -291,35 +310,141 @@ bool pkgPackageManager::ConfigureAll()
/*}}}*/
// PM::SmartConfigure - Perform immediate configuration of the pkg /*{{{*/
// ---------------------------------------------------------------------
-/* This routine scheduals the configuration of the given package and all
- of it's dependents. */
-bool pkgPackageManager::SmartConfigure(PkgIterator 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*/
+bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
{
- if (Debug == true)
- clog << "SmartConfigure " << Pkg.Name() << endl;
+ // If this is true, only check and correct and dependancies without the Loop flag
+ bool PkgLoop = List->IsFlag(Pkg,pkgOrderList::Loop);
+
+ if (Debug) {
+ VerIterator InstallVer = VerIterator(Cache,Cache[Pkg].InstallVer);
+ clog << OutputInDepth(Depth) << "SmartConfigure " << Pkg.Name() << " (" << InstallVer.VerStr() << ")";
+ if (PkgLoop)
+ clog << " (Only Correct Dependancies)";
+ clog << endl;
+ }
- pkgOrderList OList(&Cache);
+ VerIterator const instVer = Cache[Pkg].InstVerIter(Cache);
+
+ /* Because of the ordered list, most dependancies 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 dependancies before configuring. */
+ bool Bad = false;
+ for (DepIterator D = instVer.DependsList();
+ D.end() == false; )
+ {
+ // 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);
- if (DepAdd(OList,Pkg) == false)
+ // 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)
+ {
+ 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;
+ }
+ }
+ }
+
+ /* If the dependany is still not satisfied, try, if possible, unpacking a package to satisfy it */
+ if (InstallVer != 0 && Bad) {
+ Bad = false;
+ if (List->IsNow(DepPkg) && !List->IsFlag(DepPkg,pkgOrderList::Loop)) {
+ 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);
+ }
+ }
+
+ if (Start==End) {
+ if (Bad && Debug) {
+ if (!List->IsFlag(DepPkg,pkgOrderList::Loop)) {
+ _error->Warning("Could not satisfy dependancies for %s",Pkg.Name());
+ }
+ }
+ break;
+ } else {
+ Start++;
+ }
+ }
+ }
+
+ if (Bad) {
+ if (Debug)
+ _error->Warning(_("Could not configure '%s'. "),Pkg.Name());
return false;
+ }
+
+ if (PkgLoop) return true;
static std::string const conf = _config->Find("PackageManager::Configure","all");
static bool const ConfigurePkgs = (conf == "all" || conf == "smart");
- if (ConfigurePkgs == true)
- if (OList.OrderConfigure() == false)
- return false;
+ if (List->IsFlag(Pkg,pkgOrderList::Configured))
+ return _error->Error("Internal configure error on '%s'. ",Pkg.Name(),1);
- // Perform the configuring
- for (pkgOrderList::iterator I = OList.begin(); I != OList.end(); ++I)
- {
- PkgIterator Pkg(Cache,*I);
-
- if (ConfigurePkgs == true && Configure(Pkg) == false)
- return false;
-
- List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States);
- }
+ if (ConfigurePkgs == true && Configure(Pkg) == false)
+ return false;
+
+ List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States);
if ((Cache[Pkg].InstVerIter(Cache)->MultiArch & pkgCache::Version::Same) == pkgCache::Version::Same)
for (PkgIterator P = Pkg.Group().PackageList();
@@ -329,97 +454,16 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg)
Cache[P].InstallVer == 0 || (P.CurrentVer() == Cache[P].InstallVer &&
(Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall))
continue;
- SmartConfigure(P);
+ SmartConfigure(P, (Depth +1));
}
// Sanity Check
if (List->IsFlag(Pkg,pkgOrderList::Configured) == false)
- return _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);
+ return _error->Error(_("Could not configure '%s'. "),Pkg.Name());
return true;
}
/*}}}*/
-// PM::DepAdd - Add all dependents to the oder list /*{{{*/
-// ---------------------------------------------------------------------
-/* This recursively adds all dependents to the order list */
-bool pkgPackageManager::DepAdd(pkgOrderList &OList,PkgIterator Pkg,int Depth)
-{
- if (OList.IsFlag(Pkg,pkgOrderList::Added) == true)
- return true;
- if (List->IsFlag(Pkg,pkgOrderList::Configured) == true)
- return true;
- if (List->IsFlag(Pkg,pkgOrderList::UnPacked) == false)
- return false;
-
- if (Debug)
- std::clog << OutputInDepth(Depth) << "DepAdd: " << Pkg.Name() << std::endl;
-
- // Put the package on the list
- OList.push_back(Pkg);
- OList.Flag(Pkg,pkgOrderList::Added);
- Depth++;
-
- // Check the dependencies to see if they are all satisfied.
- bool Bad = false;
- for (DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList(); D.end() == false;)
- {
- if (D->Type != pkgCache::Dep::Depends && D->Type != pkgCache::Dep::PreDepends)
- {
- ++D;
- continue;
- }
-
- // Grok or groups
- Bad = true;
- for (bool LastOR = true; D.end() == false && LastOR == true; ++D)
- {
- LastOR = (D->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or;
-
- if (Bad == false)
- continue;
-
- SPtrArray<Version *> VList = D.AllTargets();
- 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;
- continue;
- }
-
- // Not the install version
- if (Cache[Pkg].InstallVer != *I ||
- (Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing))
- continue;
-
- if (List->IsFlag(Pkg,pkgOrderList::UnPacked) == true)
- Bad = !DepAdd(OList,Pkg,Depth);
- if (List->IsFlag(Pkg,pkgOrderList::Configured) == true)
- Bad = false;
- }
- }
-
- if (Bad == true)
- {
- if (Debug)
- std::clog << OutputInDepth(Depth) << "DepAdd FAILS on: " << Pkg.Name() << std::endl;
- OList.Flag(Pkg,0,pkgOrderList::Added);
- OList.pop_back();
- Depth--;
- return false;
- }
- }
-
- Depth--;
- return true;
-}
- /*}}}*/
// PM::EarlyRemove - Perform removal of packages before their time /*{{{*/
// ---------------------------------------------------------------------
/* This is called to deal with conflicts arising from unpacking */
@@ -485,30 +529,44 @@ bool pkgPackageManager::SmartRemove(PkgIterator Pkg)
/*}}}*/
// PM::SmartUnPack - Install helper /*{{{*/
// ---------------------------------------------------------------------
-/* This performs the task of handling pre-depends. */
+/* This puts the system in a state where it can Unpack Pkg, if Pkg is allready
+ unpacked, or when it has been unpacked, if Immediate==true it configures it. */
bool pkgPackageManager::SmartUnPack(PkgIterator Pkg)
{
- return SmartUnPack(Pkg, true);
+ return SmartUnPack(Pkg, true, 0);
}
-bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate)
+bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate, int const Depth)
{
+ bool PkgLoop = List->IsFlag(Pkg,pkgOrderList::Loop);
+
+ if (Debug) {
+ clog << OutputInDepth(Depth) << "SmartUnPack " << Pkg.Name();
+ VerIterator InstallVer = VerIterator(Cache,Cache[Pkg].InstallVer);
+ if (Pkg.CurrentVer() == 0)
+ cout << " (install version " << InstallVer.VerStr() << ")";
+ else
+ cout << " (replace version " << Pkg.CurrentVer().VerStr() << " with " << InstallVer.VerStr() << ")";
+ if (PkgLoop)
+ cout << " (Only Perform PreUnpack Checks)";
+ cout << endl;
+ }
+
// Check if it is already unpacked
if (Pkg.State() == pkgCache::PkgIterator::NeedsConfigure &&
Cache[Pkg].Keep() == true)
{
- List->Flag(Pkg,pkgOrderList::UnPacked,pkgOrderList::States);
- if (Immediate == true &&
- List->IsFlag(Pkg,pkgOrderList::Immediate) == true)
- if (SmartConfigure(Pkg) == false)
- return _error->Error(_("Could not perform immediate configuration on already unpacked '%s'. "
- "Please see man 5 apt.conf under APT::Immediate-Configure for details."),Pkg.Name());
- return true;
+ cout << OutputInDepth(Depth) << "SmartUnPack called on Package " << Pkg.Name() << " but its unpacked" << endl;
+ return false;
}
-
+
VerIterator const instVer = Cache[Pkg].InstVerIter(Cache);
- /* See if this packages install version has any predependencies
- that are not met by 'now' packages. */
+ /* 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
+ 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),
+ or by the ConfigureAll call at the end of the for loop in OrderInstall. */
for (DepIterator D = instVer.DependsList();
D.end() == false; )
{
@@ -519,8 +577,8 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate)
while (End->Type == pkgCache::Dep::PreDepends)
{
- if (Debug == true)
- clog << "PreDepends order for " << Pkg.Name() << std::endl;
+ if (Debug)
+ clog << OutputInDepth(Depth) << "PreDepends order for " << Pkg.Name() << std::endl;
// Look for possible ok targets.
SPtrArray<Version *> VList = Start.AllTargets();
@@ -535,8 +593,8 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate)
Pkg.State() == PkgIterator::NeedsNothing)
{
Bad = false;
- if (Debug == true)
- clog << "Found ok package " << Pkg.Name() << endl;
+ if (Debug)
+ clog << OutputInDepth(Depth) << "Found ok package " << Pkg.Name() << endl;
continue;
}
}
@@ -551,10 +609,15 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate)
if (Cache[Pkg].InstallVer != *I ||
(Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing))
continue;
+
+ if (List->IsFlag(Pkg,pkgOrderList::Configured)) {
+ Bad = false;
+ continue;
+ }
- if (Debug == true)
- clog << "Trying to SmartConfigure " << Pkg.Name() << endl;
- Bad = !SmartConfigure(Pkg);
+ if (Debug)
+ clog << OutputInDepth(Depth) << "Trying to SmartConfigure " << Pkg.Name() << endl;
+ Bad = !SmartConfigure(Pkg, Depth + 1);
}
/* If this or element did not match then continue on to the
@@ -568,7 +631,7 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate)
End.TargetPkg().Name(),Pkg.Name());
++Start;
}
- else
+ else
break;
}
@@ -581,28 +644,96 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate)
for (Version **I = VList; *I != 0; I++)
{
VerIterator Ver(Cache,*I);
- PkgIterator Pkg = Ver.ParentPkg();
+ PkgIterator ConflictPkg = Ver.ParentPkg();
+ VerIterator InstallVer(Cache,Cache[ConflictPkg].InstallVer);
// See if the current version is conflicting
- if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true)
- {
- if (EarlyRemove(Pkg) == false)
- return _error->Error("Internal Error, Could not early remove %s",Pkg.Name());
+ 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());
+ }
+ }
+ }
+ }
+ }
+
+ // 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();
+ VerIterator InstallVer(Cache,Cache[BrokenPkg].InstallVer);
+
+ // 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 if (List->IsFlag(Pkg,pkgOrderList::Loop)) {
+ /* Found a break, so unpack the package, but dont remove loop as already set.
+ This means that there is another SmartUnPack call for this
+ package and it will remove the loop flag. */
+ if (Debug)
+ cout << OutputInDepth(Depth) << " Unpacking " << BrokenPkg.Name() << " to avoid break" << endl;
+
+ SmartUnPack(BrokenPkg, false, Depth + 1);
+ } else {
+ List->Flag(Pkg,pkgOrderList::Loop);
+ // Found a break, so unpack the package
+ if (Debug)
+ cout << OutputInDepth(Depth) << " Unpacking " << BrokenPkg.Name() << " to avoid break" << endl;
+
+ SmartUnPack(BrokenPkg, false, Depth + 1);
+ List->RmFlag(Pkg,pkgOrderList::Loop);
+ }
+ }
+
+ // Check if a package needs to be removed
+ if (Cache[BrokenPkg].Delete() == true && !List->IsFlag(BrokenPkg,pkgOrderList::Configured)) {
+ if (Debug)
+ cout << OutputInDepth(Depth) << " Removing " << BrokenPkg.Name() << " to avoid break" << endl;
+ SmartRemove(BrokenPkg);
}
}
}
}
-
+
// Check for reverse conflicts.
if (CheckRConflicts(Pkg,Pkg.RevDependsList(),
instVer.VerStr()) == false)
- return false;
+ return false;
for (PrvIterator P = instVer.ProvidesList();
P.end() == false; ++P)
if (Pkg->Group != P.OwnerPkg()->Group)
CheckRConflicts(Pkg,P.ParentPkg().RevDependsList(),P.ProvideVersion());
+ if (PkgLoop)
+ return true;
+
List->Flag(Pkg,pkgOrderList::UnPacked,pkgOrderList::States);
if (Immediate == true && instVer->MultiArch == pkgCache::Version::Same)
@@ -621,7 +752,7 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate)
Cache[P].InstallVer == 0 || (P.CurrentVer() == Cache[P].InstallVer &&
(Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall))
continue;
- if (SmartUnPack(P, false) == false)
+ if (SmartUnPack(P, false, Depth + 1) == false)
return false;
}
if (installed == false && Install(Pkg,FileNames[Pkg->ID]) == false)
@@ -633,19 +764,19 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate)
Cache[P].InstallVer == 0 || (P.CurrentVer() == Cache[P].InstallVer &&
(Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall))
continue;
- if (SmartUnPack(P, false) == false)
+ if (SmartUnPack(P, false, Depth + 1) == false)
return false;
}
}
else if (Install(Pkg,FileNames[Pkg->ID]) == false)
return false;
- // Perform immedate configuration of the package.
- if (Immediate == true &&
- List->IsFlag(Pkg,pkgOrderList::Immediate) == true)
- if (SmartConfigure(Pkg) == false)
- return _error->Error(_("Could not perform immediate configuration on '%s'. "
- "Please see man 5 apt.conf under APT::Immediate-Configure for details. (%d)"),Pkg.Name(),2);
+ 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);
+ }
return true;
}
@@ -679,12 +810,19 @@ pkgPackageManager::OrderResult pkgPackageManager::OrderInstall()
for (pkgOrderList::iterator I = List->begin(); I != List->end(); ++I)
{
PkgIterator Pkg(Cache,*I);
-
+
if (List->IsNow(Pkg) == false)
{
- if (Debug == true)
- clog << "Skipping already done " << Pkg.Name() << endl;
+ 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;
+ }
continue;
+
}
if (List->IsMissing(Pkg) == true)
@@ -715,9 +853,16 @@ pkgPackageManager::OrderResult pkgPackageManager::OrderInstall()
return Failed;
}
else
- if (SmartUnPack(Pkg) == false)
+ if (SmartUnPack(Pkg,List->IsFlag(Pkg,pkgOrderList::Immediate),0) == false)
return Failed;
DoneSomething = true;
+
+ if (ImmConfigureAll) {
+ /* ConfigureAll here to pick up and packages left unconfigured becuase they were unpacked in the
+ "PreUnpack Checks" section */
+ if (!ConfigureAll())
+ return Failed;
+ }
}
// Final run through the configure phase
@@ -733,7 +878,7 @@ pkgPackageManager::OrderResult pkgPackageManager::OrderInstall()
PkgIterator(Cache,*I).Name());
return Failed;
}
- }
+ }
return Completed;
}
@@ -765,4 +910,4 @@ pkgPackageManager::OrderResult pkgPackageManager::DoInstall(int statusFd)
return DoInstallPostFork(statusFd);
}
- /*}}}*/
+ /*}}}*/
diff --git a/apt-pkg/packagemanager.h b/apt-pkg/packagemanager.h
index 053b4dc13..96dc5f236 100644
--- a/apt-pkg/packagemanager.h
+++ b/apt-pkg/packagemanager.h
@@ -42,12 +42,15 @@ class pkgPackageManager : protected pkgCache::Namespace
public:
enum OrderResult {Completed,Failed,Incomplete};
+ static bool SigINTStop;
protected:
string *FileNames;
pkgDepCache &Cache;
pkgOrderList *List;
bool Debug;
+ bool NoImmConfigure;
+ bool ImmConfigureAll;
/** \brief saves packages dpkg let disappear
@@ -57,7 +60,6 @@ class pkgPackageManager : protected pkgCache::Namespace
*/
std::set<std::string> disappearedPkgs;
- bool DepAdd(pkgOrderList &Order,PkgIterator P,int Depth = 0);
void ImmediateAdd(PkgIterator P, bool UseInstallVer, unsigned const int &Depth = 0);
virtual OrderResult OrderInstall();
bool CheckRConflicts(PkgIterator Pkg,DepIterator Dep,const char *Ver);
@@ -68,12 +70,12 @@ class pkgPackageManager : protected pkgCache::Namespace
// Install helpers
bool ConfigureAll();
- bool SmartConfigure(PkgIterator Pkg);
+ bool SmartConfigure(PkgIterator Pkg, int const Depth);
//FIXME: merge on abi break
bool SmartUnPack(PkgIterator Pkg);
- bool SmartUnPack(PkgIterator Pkg, bool const Immediate);
+ bool SmartUnPack(PkgIterator Pkg, bool const Immediate, int const Depth);
bool SmartRemove(PkgIterator Pkg);
- bool EarlyRemove(PkgIterator Pkg);
+ bool EarlyRemove(PkgIterator Pkg);
// The Actual installation implementation
virtual bool Install(PkgIterator /*Pkg*/,string /*File*/) {return false;};