990 = Config file override package files
989 = Start for preference auto-priorities
500 = Default package files
- 100 = The status file
+ 100 = The status file and ButAutomaticUpgrades sources
0 -> 100 = NotAutomatic sources like experimental
-inf -> 0 = Never selected
#include <apt-pkg/configuration.h>
#include <apt-pkg/tagfile.h>
#include <apt-pkg/strutl.h>
+#include <apt-pkg/fileutl.h>
#include <apt-pkg/error.h>
#include <apt-pkg/sptr.h>
-
+
#include <apti18n.h>
-#include <dirent.h>
-#include <sys/stat.h>
-#include <algorithm>
#include <iostream>
#include <sstream>
/*}}}*/
file matches the V0 policy engine. */
pkgPolicy::pkgPolicy(pkgCache *Owner) : Pins(0), PFPriority(0), Cache(Owner)
{
+ if (Owner == 0 || &(Owner->Head()) == 0)
+ return;
PFPriority = new signed short[Owner->Head().PackageFileCount];
Pins = new Pin[Owner->Head().PackageCount];
PFPriority[I->ID] = 500;
if ((I->Flags & pkgCache::Flag::NotSource) == pkgCache::Flag::NotSource)
PFPriority[I->ID] = 100;
- else
- if ((I->Flags & pkgCache::Flag::NotAutomatic) == pkgCache::Flag::NotAutomatic)
- PFPriority[I->ID] = 1;
+ else if ((I->Flags & pkgCache::Flag::ButAutomaticUpgrades) == pkgCache::Flag::ButAutomaticUpgrades)
+ PFPriority[I->ID] = 100;
+ else if ((I->Flags & pkgCache::Flag::NotAutomatic) == pkgCache::Flag::NotAutomatic)
+ PFPriority[I->ID] = 1;
}
// Apply the defaults..
if (_config->FindB("Debug::pkgPolicy",false) == true)
for (pkgCache::PkgFileIterator F = Cache->FileBegin(); F != Cache->FileEnd(); F++)
- cout << "Prio of " << F.FileName() << ' ' << PFPriority[F->ID] << endl;
+ std::clog << "Prio of " << F.FileName() << ' ' << PFPriority[F->ID] << std::endl;
return true;
}
// ---------------------------------------------------------------------
/* Evaluate the package pins and the default list to deteremine what the
best package is. */
-pkgCache::VerIterator pkgPolicy::GetCandidateVer(pkgCache::PkgIterator Pkg)
+pkgCache::VerIterator pkgPolicy::GetCandidateVer(pkgCache::PkgIterator const &Pkg)
{
// Look for a package pin and evaluate it.
signed Max = GetPriority(Pkg);
pkgCache::VerIterator Pref = GetMatch(Pkg);
+ // Alternatives in case we can not find our package pin (Bug#512318).
+ signed MaxAlt = 0;
+ pkgCache::VerIterator PrefAlt;
+
+ // no package = no candidate version
+ if (Pkg.end() == true)
+ return Pref;
+
+ // packages with a pin lower than 0 have no newer candidate than the current version
+ if (Max < 0)
+ return Pkg.CurrentVer();
+
/* Falling through to the default version.. Setting Max to zero
effectively excludes everything <= 0 which are the non-automatic
priorities.. The status file is given a prio of 100 which will exclude
*/
for (pkgCache::VerIterator Ver = Pkg.VersionList(); Ver.end() == false; Ver++)
{
+ /* Lets see if this version is the installed version */
+ bool instVer = (Pkg.CurrentVer() == Ver);
+
for (pkgCache::VerFileIterator VF = Ver.FileList(); VF.end() == false; VF++)
{
/* If this is the status file, and the current version is not the
out bogus entries that may be due to config-file states, or
other. */
if ((VF.File()->Flags & pkgCache::Flag::NotSource) == pkgCache::Flag::NotSource &&
- Pkg.CurrentVer() != Ver)
+ instVer == false)
continue;
-
+
signed Prio = PFPriority[VF.File()->ID];
if (Prio > Max)
{
Pref = Ver;
Max = Prio;
+ }
+ if (Prio > MaxAlt)
+ {
+ PrefAlt = Ver;
+ MaxAlt = Prio;
}
}
- if (Pkg.CurrentVer() == Ver && Max < 1000)
+ if (instVer == true && Max < 1000)
{
/* Elevate our current selection (or the status file itself)
to the Pseudo-status priority. */
break;
}
}
+ // If we do not find our candidate, use the one with the highest pin.
+ // This means that if there is a version available with pin > 0; there
+ // will always be a candidate (Closes: #512318)
+ if (!Pref.IsGood() && MaxAlt > 0)
+ Pref = PrefAlt;
+
return Pref;
}
/*}}}*/
void pkgPolicy::CreatePin(pkgVersionMatch::MatchType Type,string Name,
string Data,signed short Priority)
{
- Pin *P = 0;
-
if (Name.empty() == true)
- P = &*Defaults.insert(Defaults.end(),PkgPin());
- else
{
- // Get a spot to put the pin
- pkgCache::PkgIterator Pkg = Cache->FindPkg(Name);
- if (Pkg.end() == true)
- {
- // Check the unmatched table
- for (vector<PkgPin>::iterator I = Unmatched.begin();
- I != Unmatched.end() && P == 0; I++)
- if (I->Pkg == Name)
- P = &*I;
-
- if (P == 0)
- P = &*Unmatched.insert(Unmatched.end(),PkgPin());
- }
- else
- {
- P = Pins + Pkg->ID;
- }
+ Pin *P = &*Defaults.insert(Defaults.end(),Pin());
+ P->Type = Type;
+ P->Priority = Priority;
+ P->Data = Data;
+ return;
+ }
+
+ size_t found = Name.rfind(':');
+ string Arch;
+ if (found != string::npos) {
+ Arch = Name.substr(found+1);
+ Name.erase(found);
+ }
+
+ // Allow pinning by wildcards
+ // TODO: Maybe we should always prefer specific pins over non-
+ // specific ones.
+ if (Name[0] == '/' || Name.find_first_of("*[?") != string::npos)
+ {
+ pkgVersionMatch match(Data, Type);
+ for (pkgCache::GrpIterator G = Cache->GrpBegin(); G.end() != true; ++G)
+ if (match.ExpressionMatches(Name, G.Name()))
+ {
+ if (Arch.empty() == false)
+ CreatePin(Type, string(G.Name()).append(":").append(Arch), Data, Priority);
+ else
+ CreatePin(Type, G.Name(), Data, Priority);
+ }
+ return;
+ }
+
+ // find the package (group) this pin applies to
+ pkgCache::GrpIterator Grp;
+ pkgCache::PkgIterator Pkg;
+ if (Arch.empty() == false)
+ Pkg = Cache->FindPkg(Name, Arch);
+ else {
+ Grp = Cache->FindGrp(Name);
+ if (Grp.end() == false)
+ Pkg = Grp.PackageList();
+ }
+
+ if (Pkg.end() == true)
+ {
+ PkgPin *P = &*Unmatched.insert(Unmatched.end(),PkgPin(Name));
+ if (Arch.empty() == false)
+ P->Pkg.append(":").append(Arch);
+ P->Type = Type;
+ P->Priority = Priority;
+ P->Data = Data;
+ return;
+ }
+
+ for (; Pkg.end() != true; Pkg = Grp.NextPkg(Pkg))
+ {
+ Pin *P = Pins + Pkg->ID;
+ // the first specific stanza for a package is the ruler,
+ // all others need to be ignored
+ if (P->Type != pkgVersionMatch::None)
+ P = &*Unmatched.insert(Unmatched.end(),PkgPin(Pkg.FullName()));
+ P->Type = Type;
+ P->Priority = Priority;
+ P->Data = Data;
+ if (Grp.end() == true)
+ break;
}
-
- // Set..
- P->Type = Type;
- P->Priority = Priority;
- P->Data = Data;
}
/*}}}*/
// Policy::GetMatch - Get the matching version for a package pin /*{{{*/
// ---------------------------------------------------------------------
/* */
-pkgCache::VerIterator pkgPolicy::GetMatch(pkgCache::PkgIterator Pkg)
+pkgCache::VerIterator pkgPolicy::GetMatch(pkgCache::PkgIterator const &Pkg)
{
const Pin &PPkg = Pins[Pkg->ID];
- if (PPkg.Type != pkgVersionMatch::None)
- {
- pkgVersionMatch Match(PPkg.Data,PPkg.Type);
- return Match.Find(Pkg);
- }
- return pkgCache::VerIterator(*Pkg.Cache());
+ if (PPkg.Type == pkgVersionMatch::None)
+ return pkgCache::VerIterator(*Pkg.Cache());
+
+ pkgVersionMatch Match(PPkg.Data,PPkg.Type);
+ return Match.Find(Pkg);
}
/*}}}*/
// Policy::GetPriority - Get the priority of the package pin /*{{{*/
Stop = (const char*) memchr(Stop,'\n',End-Stop);
}
};
-
-
+ /*}}}*/
+// ReadPinDir - Load the pin files from this dir into a Policy /*{{{*/
+// ---------------------------------------------------------------------
+/* This will load each pin file in the given dir into a Policy. If the
+ given dir is empty the dir set in Dir::Etc::PreferencesParts is used.
+ Note also that this method will issue a warning if the dir does not
+ exists but it will return true in this case! */
bool ReadPinDir(pkgPolicy &Plcy,string Dir)
{
if (Dir.empty() == true)
Dir = _config->FindDir("Dir::Etc::PreferencesParts");
- DIR *D = opendir(Dir.c_str());
- if (D == 0)
- return _error->Errno("opendir",_("Unable to read %s"),Dir.c_str());
-
- vector<string> List;
-
- for (struct dirent *Ent = readdir(D); Ent != 0; Ent = readdir(D))
+ if (DirectoryExists(Dir) == false)
{
- if (Ent->d_name[0] == '.')
- continue;
-
- // Skip bad file names ala run-parts
- const char *C = Ent->d_name;
- for (; *C != 0; C++)
- if (isalpha(*C) == 0 && isdigit(*C) == 0 && *C != '_' && *C != '-')
- break;
- if (*C != 0)
- continue;
-
- // Make sure it is a file and not something else
- string File = flCombine(Dir,Ent->d_name);
- struct stat St;
- if (stat(File.c_str(),&St) != 0 || S_ISREG(St.st_mode) == 0)
- continue;
-
- List.push_back(File);
- }
- closedir(D);
-
- sort(List.begin(),List.end());
+ _error->WarningE("DirectoryExists",_("Unable to read %s"),Dir.c_str());
+ return true;
+ }
+
+ vector<string> const List = GetListOfFilesInDir(Dir, "pref", true, true);
// Read the files
for (vector<string>::const_iterator I = List.begin(); I != List.end(); I++)
return false;
return true;
}
-
/*}}}*/
// ReadPinFile - Load the pin file into a Policy /*{{{*/
// ---------------------------------------------------------------------
if (File.empty() == true)
File = _config->FindFile("Dir::Etc::Preferences");
- if (FileExists(File) == false)
+ if (RealFileExists(File) == false)
return true;
FileFd Fd(File,FileFd::ReadOnly);
projects / apt.git / blobdiff