+}
+
+// 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;
+
projects / apt.git / blobdiff