+// Cache::FindPkg - Locate a package by name /*{{{*/
+// ---------------------------------------------------------------------
+/* Returns 0 on error, pointer to the package otherwise */
+pkgCache::PkgIterator pkgCache::FindPkg(const string &Name) {
+ size_t const found = Name.find(':');
+ if (found == string::npos)
+ {
+ if (MultiArchCache() == false)
+ return SingleArchFindPkg(Name);
+ else
+ return FindPkg(Name, "native");
+ }
+ string const Arch = Name.substr(found+1);
+ /* Beware: This is specialcased to handle pkg:any in dependencies as
+ these are linked to virtual pkg:any named packages with all archs.
+ If you want any arch from a given pkg, use FindPkg(pkg,arch) */
+ if (Arch == "any")
+ return FindPkg(Name, "any");
+ return FindPkg(Name.substr(0, found), Arch);
+}
+ /*}}}*/
+// Cache::FindPkg - Locate a package by name /*{{{*/
+// ---------------------------------------------------------------------
+/* Returns 0 on error, pointer to the package otherwise */
+pkgCache::PkgIterator pkgCache::FindPkg(const string &Name, string const &Arch) {
+ if (MultiArchCache() == false) {
+ if (Arch == "native" || Arch == "all" || Arch == "any" ||
+ Arch == NativeArch())
+ return SingleArchFindPkg(Name);
+ else
+ return PkgIterator(*this,0);
+ }
+ /* We make a detour via the GrpIterator here as
+ on a multi-arch environment a group is easier to
+ find than a package (less entries in the buckets) */
+ pkgCache::GrpIterator Grp = FindGrp(Name);
+ if (Grp.end() == true)
+ return PkgIterator(*this,0);
+
+ return Grp.FindPkg(Arch);
+}
+ /*}}}*/
+// Cache::FindGrp - Locate a group by name /*{{{*/
+// ---------------------------------------------------------------------
+/* Returns End-Pointer on error, pointer to the group otherwise */
+pkgCache::GrpIterator pkgCache::FindGrp(const string &Name) {
+ if (unlikely(Name.empty() == true))
+ return GrpIterator(*this,0);
+
+ // Look at the hash bucket for the group
+ Group *Grp = GrpP + HeaderP->GrpHashTable[sHash(Name)];
+ for (; Grp != GrpP; Grp = GrpP + Grp->Next) {
+ if (Grp->Name != 0 && StrP[Grp->Name] == Name[0] &&
+ stringcasecmp(Name, StrP + Grp->Name) == 0)
+ return GrpIterator(*this, Grp);
+ }
+
+ return GrpIterator(*this,0);
+}
+ /*}}}*/
+// Cache::CompTypeDeb - Return a string describing the compare type /*{{{*/
+// ---------------------------------------------------------------------
+/* This returns a string representation of the dependency compare
+ type in the weird debian style.. */
+const char *pkgCache::CompTypeDeb(unsigned char Comp)
+{
+ const char *Ops[] = {"","<=",">=","<<",">>","=","!="};
+ if ((unsigned)(Comp & 0xF) < 7)
+ return Ops[Comp & 0xF];
+ return "";
+}
+ /*}}}*/
+// Cache::CompType - Return a string describing the compare type /*{{{*/
+// ---------------------------------------------------------------------
+/* This returns a string representation of the dependency compare
+ type */
+const char *pkgCache::CompType(unsigned char Comp)
+{
+ const char *Ops[] = {"","<=",">=","<",">","=","!="};
+ if ((unsigned)(Comp & 0xF) < 7)
+ return Ops[Comp & 0xF];
+ return "";
+}
+ /*}}}*/
+// Cache::DepType - Return a string describing the dep type /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+const char *pkgCache::DepType(unsigned char Type)
+{
+ const char *Types[] = {"",_("Depends"),_("PreDepends"),_("Suggests"),
+ _("Recommends"),_("Conflicts"),_("Replaces"),
+ _("Obsoletes"),_("Breaks"), _("Enhances")};
+ if (Type < sizeof(Types)/sizeof(*Types))
+ return Types[Type];
+ return "";
+}
+ /*}}}*/
+// Cache::Priority - Convert a priority value to a string /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+const char *pkgCache::Priority(unsigned char Prio)
+{
+ const char *Mapping[] = {0,_("important"),_("required"),_("standard"),
+ _("optional"),_("extra")};
+ if (Prio < _count(Mapping))
+ return Mapping[Prio];
+ return 0;
+}
+ /*}}}*/
+// GrpIterator::FindPkg - Locate a package by arch /*{{{*/
+// ---------------------------------------------------------------------
+/* Returns an End-Pointer on error, pointer to the package otherwise */
+pkgCache::PkgIterator pkgCache::GrpIterator::FindPkg(string Arch) const {
+ if (unlikely(IsGood() == false || S->FirstPackage == 0))
+ return PkgIterator(*Owner, 0);
+
+ /* If we accept any package we simply return the "first"
+ package in this group (the last one added). */
+ if (Arch == "any")
+ return PkgIterator(*Owner, Owner->PkgP + S->FirstPackage);
+
+ char const* const myArch = Owner->NativeArch();
+ /* Most of the time the package for our native architecture is
+ the one we add at first to the cache, but this would be the
+ last one we check, so we do it now. */
+ if (Arch == "native" || Arch == myArch || Arch == "all") {
+ pkgCache::Package *Pkg = Owner->PkgP + S->LastPackage;
+ if (strcasecmp(myArch, Owner->StrP + Pkg->Arch) == 0)
+ return PkgIterator(*Owner, Pkg);
+ Arch = myArch;
+ }
+
+ /* Iterate over the list to find the matching arch
+ unfortunately this list includes "package noise"
+ (= different packages with same calculated hash),
+ so we need to check the name also */
+ for (pkgCache::Package *Pkg = PackageList(); Pkg != Owner->PkgP;
+ Pkg = Owner->PkgP + Pkg->NextPackage) {
+ if (S->Name == Pkg->Name &&
+ stringcasecmp(Arch, Owner->StrP + Pkg->Arch) == 0)
+ return PkgIterator(*Owner, Pkg);
+ if ((Owner->PkgP + S->LastPackage) == Pkg)
+ break;
+ }
projects / apt.git / blobdiff