-// DoInstallTask - Install task from the command line /*{{{*/
-// ---------------------------------------------------------------------
-/* Install named task */
-bool TryInstallTask(pkgDepCache &Cache, pkgProblemResolver &Fix,
- bool BrokenFix,
- unsigned int& ExpectedInst,
- const char *taskname,
- bool Remove)
-{
- const char *start, *end;
- pkgCache::PkgIterator Pkg;
- char buf[64*1024];
- regex_t Pattern;
-
- // get the records
- pkgRecords Recs(Cache);
-
- // build regexp for the task
- char S[300];
- snprintf(S, sizeof(S), "^Task:.*[, ]%s([, ]|$)", taskname);
- if(regcomp(&Pattern,S, REG_EXTENDED | REG_NOSUB | REG_NEWLINE) != 0)
- return _error->Error("Failed to compile task regexp");
-
- bool found = false;
- bool res = true;
-
- // two runs, first ignore dependencies, second install any missing
- for(int IgnoreBroken=1; IgnoreBroken >= 0; IgnoreBroken--)
- {
- for (Pkg = Cache.PkgBegin(); Pkg.end() == false; Pkg++)
- {
- pkgCache::VerIterator ver = Cache[Pkg].CandidateVerIter(Cache);
- if(ver.end())
- continue;
- pkgRecords::Parser &parser = Recs.Lookup(ver.FileList());
- parser.GetRec(start,end);
- strncpy(buf, start, end-start);
- buf[end-start] = 0x0;
- if (regexec(&Pattern,buf,0,0,0) != 0)
- continue;
- res &= TryToInstall(Pkg,Cache,Fix,Remove,IgnoreBroken,ExpectedInst);
- found = true;
- }
- }
-
- // now let the problem resolver deal with any issues
- Fix.Resolve(true);
-
- if(!found)
- _error->Error(_("Couldn't find task %s"),taskname);
+// CacheSetHelperAPTGet - responsible for message telling from the CacheSets/*{{{*/
+class CacheSetHelperAPTGet : public APT::CacheSetHelper {
+ /** \brief stream message should be printed to */
+ std::ostream &out;
+ /** \brief were things like Task or RegEx used to select packages? */
+ bool explicitlyNamed;
+
+public:
+ CacheSetHelperAPTGet(std::ostream &out) : APT::CacheSetHelper(true), out(out) {
+ explicitlyNamed = true;
+ }
+
+ virtual void showTaskSelection(APT::PackageSet const &pkgset, string const &pattern) {
+ for (APT::PackageSet::const_iterator Pkg = pkgset.begin(); Pkg != pkgset.end(); ++Pkg)
+ ioprintf(out, _("Note, selecting '%s' for task '%s'\n"),
+ Pkg.FullName(true).c_str(), pattern.c_str());
+ explicitlyNamed = false;
+ }
+ virtual void showRegExSelection(APT::PackageSet const &pkgset, string const &pattern) {
+ for (APT::PackageSet::const_iterator Pkg = pkgset.begin(); Pkg != pkgset.end(); ++Pkg)
+ ioprintf(out, _("Note, selecting '%s' for regex '%s'\n"),
+ Pkg.FullName(true).c_str(), pattern.c_str());
+ explicitlyNamed = false;
+ }
+ virtual void showSelectedVersion(pkgCache::PkgIterator const &Pkg, pkgCache::VerIterator const Ver,
+ string const &ver, bool const &verIsRel) {
+ if (ver != Ver.VerStr())
+ ioprintf(out, _("Selected version '%s' (%s) for '%s'\n"),
+ Ver.VerStr(), Ver.RelStr().c_str(), Pkg.FullName(true).c_str());
+ }
+
+ virtual APT::VersionSet canNotFindCandInstVer(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg) {
+ return tryVirtualPackage(Cache, Pkg, APT::VersionSet::CANDINST);
+ }
+
+ virtual APT::VersionSet canNotFindInstCandVer(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg) {
+ return tryVirtualPackage(Cache, Pkg, APT::VersionSet::INSTCAND);
+ }
+
+ APT::VersionSet tryVirtualPackage(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg,
+ APT::VersionSet::Version const &select) {
+ /* This is a pure virtual package and there is a single available
+ candidate providing it. */
+ if (unlikely(Cache[Pkg].CandidateVer != 0) || Pkg->ProvidesList == 0) {
+ if (select == APT::VersionSet::CANDINST)
+ return APT::CacheSetHelper::canNotFindCandInstVer(Cache, Pkg);
+ return APT::CacheSetHelper::canNotFindInstCandVer(Cache, Pkg);
+ }
+
+ pkgCache::PkgIterator Prov;
+ bool found_one = false;
+ for (pkgCache::PrvIterator P = Pkg.ProvidesList(); P; ++P) {
+ pkgCache::VerIterator const PVer = P.OwnerVer();
+ pkgCache::PkgIterator const PPkg = PVer.ParentPkg();
+
+ /* Ignore versions that are not a candidate. */
+ if (Cache[PPkg].CandidateVer != PVer)
+ continue;
+
+ if (found_one == false) {
+ Prov = PPkg;
+ found_one = true;
+ } else if (PPkg != Prov) {
+ found_one = false; // we found at least two
+ break;
+ }
+ }
+
+ if (found_one == true) {
+ ioprintf(out, _("Note, selecting '%s' instead of '%s'\n"),
+ Prov.FullName(true).c_str(), Pkg.FullName(true).c_str());
+ return APT::VersionSet::FromPackage(Cache, Prov, select, *this);
+ }
+ if (select == APT::VersionSet::CANDINST)
+ return APT::CacheSetHelper::canNotFindCandInstVer(Cache, Pkg);
+ return APT::CacheSetHelper::canNotFindInstCandVer(Cache, Pkg);
+ }
+
+ inline bool allPkgNamedExplicitly() const { return explicitlyNamed; }
projects / apt.git / blobdiff