diff options
Diffstat (limited to 'apt-pkg')
| -rw-r--r-- | apt-pkg/packagemanager.cc | 91 | ||||
| -rw-r--r-- | apt-pkg/packagemanager.h | 4 |
2 files changed, 92 insertions, 3 deletions
diff --git a/apt-pkg/packagemanager.cc b/apt-pkg/packagemanager.cc index fe9f6eb68..de7f410e6 100644 --- a/apt-pkg/packagemanager.cc +++ b/apt-pkg/packagemanager.cc @@ -278,7 +278,7 @@ bool pkgPackageManager::ConfigureAll() { PkgIterator Pkg(Cache,*I); - if (ConfigurePkgs == true && Configure(Pkg) == false) + if (ConfigurePkgs == true && VerifyConfigure(Pkg) == false) return false; List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States); @@ -313,7 +313,7 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg) { PkgIterator Pkg(Cache,*I); - if (ConfigurePkgs == true && Configure(Pkg) == false) + if (ConfigurePkgs == true && VerifyConfigure(Pkg) == false) return false; List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States); @@ -337,6 +337,93 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg) return true; } + +// PM::VerifyConfigure - Check configuration of dependancies /*{{{*/ +// --------------------------------------------------------------------- +/* This routine checks that all a packages dependancies have been + configured, before it is going to be configured. If this gives a warning + on a virtual package, it means that the package thats providing it is not + configured*/ +bool pkgPackageManager::VerifyConfigure(PkgIterator Pkg, pkgOrderList &OList) +{ + // If this is true at the end, then the package should not be configured + bool error=true; + // This holds the the OR status of the previous dependancy + bool previousOr=false; + + // First iterate through the dependancies of Pkg + for (DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList(); D.end() == false; D++) + { + + /* If the dependancy is of type Depends or PreDepends, we need to check it, but only if it is going to be + configured at some point */ + if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends) { + + /* If the previous package and this package are OR dependancies, and the previous package satisfied the dependancy + then skip this dependancy as it is not relevent, this will repeat for the next package if the situation is the + same */ + if (previousOr && !error) { // As error has not been reset, this refers to the previous dependancy + previousOr = (D->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or; + continue; + } + + // Reset error + error = true; + + // Check thorugh all possible versions of this dependancy (D) + SPtrArray<Version *> VList = D.AllTargets(); + for (Version **I = VList; *I != 0; I++) + { + VerIterator DepVer(Cache,*I); + PkgIterator DepPkg = DepVer.ParentPkg(); + VerIterator DepInstallVer(Cache,Cache[DepPkg].InstallVer); + + if (DepPkg.CurrentVer() == DepVer && !List->IsFlag(DepPkg,pkgOrderList::UnPacked)) { + clog << "Version " << DepPkg.CurrentVer() << " is installed on the system, satifying this dependancy" << endl; + error=false; + break; + } + + if (Cache[DepPkg].InstallVer == DepVer && + (List->IsFlag(DepPkg,pkgOrderList::Configured) || OList.IsFlag(DepPkg,pkgOrderList::InList))) { + clog << "Version " << DepInstallVer.VerStr() << " is going to be installed on the system, satifying this dependancy" << endl; + error=false; + break; + } + } + + /* Only worry here if this package is a OR with the next, as even though this package does not satisfy the OR + the next one might */ + if (error && !((D->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or)) { + _error->Error("Package %s should not be configured because package %s is not configured",Pkg.Name(),D.TargetPkg().Name()); + return false; + /* If the previous package is a OR but not this package, but there is still an error then fail as it will not + be satisfied */ + } else if (error && previousOr && !((D->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or)) { + _error->Error("Package %s should not be configured because package %s (or any alternatives) are not configured",Pkg.Name(),D.TargetPkg().Name()); + return false; + } + + previousOr = (D->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or; + } else { + previousOr=false; + } + } + return true; +} + +// PM::VerifyAndConfigure - Check configuration of dependancies /*{{{*/ +// --------------------------------------------------------------------- +/* This routine verifies if a package can be configured and if so + configures it */ +bool pkgPackageManager::VerifyAndConfigure(PkgIterator Pkg, pkgOrderList &OList) +{ + if (VerifyConfigure(Pkg, OList)) + return Configure(Pkg); + else + return false; + +} /*}}}*/ // PM::DepAdd - Add all dependents to the oder list /*{{{*/ // --------------------------------------------------------------------- diff --git a/apt-pkg/packagemanager.h b/apt-pkg/packagemanager.h index 053b4dc13..070b9c04b 100644 --- a/apt-pkg/packagemanager.h +++ b/apt-pkg/packagemanager.h @@ -73,7 +73,9 @@ class pkgPackageManager : protected pkgCache::Namespace bool SmartUnPack(PkgIterator Pkg); bool SmartUnPack(PkgIterator Pkg, bool const Immediate); bool SmartRemove(PkgIterator Pkg); - bool EarlyRemove(PkgIterator Pkg); + bool EarlyRemove(PkgIterator Pkg); + bool VerifyAndConfigure(PkgIterator Pkg, pkgOrderList &OList); + bool VerifyConfigure(PkgIterator Pkg, pkgOrderList &OList); // The Actual installation implementation virtual bool Install(PkgIterator /*Pkg*/,string /*File*/) {return false;}; |