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-rw-r--r--apt-pkg/policy.cc130
1 files changed, 98 insertions, 32 deletions
diff --git a/apt-pkg/policy.cc b/apt-pkg/policy.cc
index 00693ce54..91ad1d5bf 100644
--- a/apt-pkg/policy.cc
+++ b/apt-pkg/policy.cc
@@ -22,10 +22,10 @@
#include <apt-pkg/strutl.h>
#include <apt-pkg/fileutl.h>
#include <apt-pkg/error.h>
-#include <apt-pkg/sptr.h>
#include <apt-pkg/cacheiterators.h>
#include <apt-pkg/pkgcache.h>
#include <apt-pkg/versionmatch.h>
+#include <apt-pkg/version.h>
#include <ctype.h>
#include <stddef.h>
@@ -44,15 +44,19 @@ using namespace std;
// ---------------------------------------------------------------------
/* Set the defaults for operation. The default mode with no loaded policy
file matches the V0 policy engine. */
-pkgPolicy::pkgPolicy(pkgCache *Owner) : Pins(0), PFPriority(0), Cache(Owner)
+pkgPolicy::pkgPolicy(pkgCache *Owner) : Pins(nullptr), VerPins(nullptr),
+ PFPriority(nullptr), Cache(Owner), d(NULL)
{
if (Owner == 0)
return;
PFPriority = new signed short[Owner->Head().PackageFileCount];
Pins = new Pin[Owner->Head().PackageCount];
+ VerPins = new Pin[Owner->Head().VersionCount];
for (unsigned long I = 0; I != Owner->Head().PackageCount; I++)
Pins[I].Type = pkgVersionMatch::None;
+ for (unsigned long I = 0; I != Owner->Head().VersionCount; I++)
+ VerPins[I].Type = pkgVersionMatch::None;
// The config file has a master override.
string DefRel = _config->Find("APT::Default-Release");
@@ -63,9 +67,9 @@ pkgPolicy::pkgPolicy(pkgCache *Owner) : Pins(0), PFPriority(0), Cache(Owner)
pkgVersionMatch vm("", pkgVersionMatch::None);
for (pkgCache::PkgFileIterator F = Cache->FileBegin(); F != Cache->FileEnd(); ++F)
{
- if ((F->Archive != 0 && vm.ExpressionMatches(DefRel, F.Archive()) == true) ||
- (F->Codename != 0 && vm.ExpressionMatches(DefRel, F.Codename()) == true) ||
- (F->Version != 0 && vm.ExpressionMatches(DefRel, F.Version()) == true) ||
+ if (vm.ExpressionMatches(DefRel, F.Archive()) ||
+ vm.ExpressionMatches(DefRel, F.Codename()) ||
+ vm.ExpressionMatches(DefRel, F.Version()) ||
(DefRel.length() > 2 && DefRel[1] == '='))
found = true;
}
@@ -86,17 +90,17 @@ bool pkgPolicy::InitDefaults()
for (pkgCache::PkgFileIterator I = Cache->FileBegin(); I != Cache->FileEnd(); ++I)
{
PFPriority[I->ID] = 500;
- if ((I->Flags & pkgCache::Flag::NotSource) == pkgCache::Flag::NotSource)
+ if (I.Flagged(pkgCache::Flag::NotSource))
PFPriority[I->ID] = 100;
- else if ((I->Flags & pkgCache::Flag::ButAutomaticUpgrades) == pkgCache::Flag::ButAutomaticUpgrades)
+ else if (I.Flagged(pkgCache::Flag::ButAutomaticUpgrades))
PFPriority[I->ID] = 100;
- else if ((I->Flags & pkgCache::Flag::NotAutomatic) == pkgCache::Flag::NotAutomatic)
+ else if (I.Flagged(pkgCache::Flag::NotAutomatic))
PFPriority[I->ID] = 1;
}
// Apply the defaults..
- SPtrArray<bool> Fixed = new bool[Cache->HeaderP->PackageFileCount];
- memset(Fixed,0,sizeof(*Fixed)*Cache->HeaderP->PackageFileCount);
+ std::unique_ptr<bool[]> Fixed(new bool[Cache->HeaderP->PackageFileCount]);
+ memset(Fixed.get(),0,sizeof(Fixed[0])*Cache->HeaderP->PackageFileCount);
StatusOverride = false;
for (vector<Pin>::const_iterator I = Defaults.begin(); I != Defaults.end(); ++I)
{
@@ -128,6 +132,10 @@ bool pkgPolicy::InitDefaults()
best package is. */
pkgCache::VerIterator pkgPolicy::GetCandidateVer(pkgCache::PkgIterator const &Pkg)
{
+ if (_config->FindI("APT::Policy", 1) >= 1) {
+ return GetCandidateVerNew(Pkg);
+ }
+
// Look for a package pin and evaluate it.
signed Max = GetPriority(Pkg);
pkgCache::VerIterator Pref = GetMatch(Pkg);
@@ -170,8 +178,7 @@ pkgCache::VerIterator pkgPolicy::GetCandidateVer(pkgCache::PkgIterator const &Pk
then it is not a candidate for installation, ever. This weeds
out bogus entries that may be due to config-file states, or
other. */
- if ((VF.File()->Flags & pkgCache::Flag::NotSource) == pkgCache::Flag::NotSource &&
- instVer == false)
+ if (VF.File().Flagged(pkgCache::Flag::NotSource) && instVer == false)
continue;
signed Prio = PFPriority[VF.File()->ID];
@@ -215,6 +222,36 @@ pkgCache::VerIterator pkgPolicy::GetCandidateVer(pkgCache::PkgIterator const &Pk
return Pref;
}
+
+// Policy::GetCandidateVer - Get the candidate install version /*{{{*/
+// ---------------------------------------------------------------------
+/* Evaluate the package pins and the default list to deteremine what the
+ best package is. */
+pkgCache::VerIterator pkgPolicy::GetCandidateVerNew(pkgCache::PkgIterator const &Pkg)
+{
+ // TODO: Replace GetCandidateVer()
+ pkgCache::VerIterator cand;
+ pkgCache::VerIterator cur = Pkg.CurrentVer();
+ int candPriority = -1;
+ pkgVersioningSystem *vs = Cache->VS;
+
+ for (pkgCache::VerIterator ver = Pkg.VersionList(); ver.end() == false; ver++) {
+ int priority = GetPriority(ver);
+
+ if (priority == 0 || priority <= candPriority)
+ continue;
+
+ // TODO: Maybe optimize to not compare versions
+ if (!cur.end() && priority < 1000
+ && (vs->CmpVersion(ver.VerStr(), cur.VerStr()) < 0))
+ continue;
+
+ candPriority = priority;
+ cand = ver;
+ }
+
+ return cand;
+}
/*}}}*/
// Policy::CreatePin - Create an entry in the pin table.. /*{{{*/
// ---------------------------------------------------------------------
@@ -282,6 +319,17 @@ void pkgPolicy::CreatePin(pkgVersionMatch::MatchType Type,string Name,
P->Priority = Priority;
P->Data = Data;
matched = true;
+
+ // Find matching version(s) and copy the pin into it
+ pkgVersionMatch Match(P->Data,P->Type);
+ for (pkgCache::VerIterator Ver = Pkg.VersionList(); Ver.end() != true; Ver++)
+ {
+ if (Match.VersionMatches(Ver)) {
+ Pin *VP = VerPins + Ver->ID;
+ if (VP->Type == pkgVersionMatch::None)
+ *VP = *P;
+ }
+ }
}
}
@@ -319,26 +367,35 @@ APT_PURE signed short pkgPolicy::GetPriority(pkgCache::PkgIterator const &Pkg)
return Pins[Pkg->ID].Priority;
return 0;
}
+APT_PURE signed short pkgPolicy::GetPriority(pkgCache::VerIterator const &Ver, bool ConsiderFiles)
+{
+ if (VerPins[Ver->ID].Type != pkgVersionMatch::None)
+ return VerPins[Ver->ID].Priority;
+ if (!ConsiderFiles)
+ return 0;
+
+ int priority = std::numeric_limits<int>::min();
+ for (pkgCache::VerFileIterator file = Ver.FileList(); file.end() == false; file++)
+ {
+ /* If this is the status file, and the current version is not the
+ version in the status file (ie it is not installed, or somesuch)
+ then it is not a candidate for installation, ever. This weeds
+ out bogus entries that may be due to config-file states, or
+ other. */
+ if (file.File().Flagged(pkgCache::Flag::NotSource) && Ver.ParentPkg().CurrentVer() != Ver) {
+ // Ignore
+ } else if (GetPriority(file.File()) > priority) {
+ priority = GetPriority(file.File());
+ }
+ }
+
+ return priority == std::numeric_limits<int>::min() ? 0 : priority;
+}
APT_PURE signed short pkgPolicy::GetPriority(pkgCache::PkgFileIterator const &File)
{
return PFPriority[File->ID];
}
/*}}}*/
-// PreferenceSection class - Overriding the default TrimRecord method /*{{{*/
-// ---------------------------------------------------------------------
-/* The preference file is a user generated file so the parser should
- therefore be a bit more friendly by allowing comments and new lines
- all over the place rather than forcing a special format */
-class PreferenceSection : public pkgTagSection
-{
- void TrimRecord(bool /*BeforeRecord*/, const char* &End)
- {
- for (; Stop < End && (Stop[0] == '\n' || Stop[0] == '\r' || Stop[0] == '#'); Stop++)
- if (Stop[0] == '#')
- 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
@@ -383,8 +440,8 @@ bool ReadPinFile(pkgPolicy &Plcy,string File)
pkgTagFile TF(&Fd);
if (_error->PendingError() == true)
return false;
-
- PreferenceSection Tags;
+
+ pkgUserTagSection Tags;
while (TF.Step(Tags) == true)
{
// can happen when there are only comments in a record
@@ -420,11 +477,18 @@ bool ReadPinFile(pkgPolicy &Plcy,string File)
}
for (; Word != End && isspace(*Word) != 0; Word++);
- short int priority = Tags.FindI("Pin-Priority", 0);
+ int priority = Tags.FindI("Pin-Priority", 0);
+ if (priority < std::numeric_limits<short>::min() ||
+ priority > std::numeric_limits<short>::max() ||
+ _error->PendingError()) {
+ return _error->Error(_("%s: Value %s is outside the range of valid pin priorities (%d to %d)"),
+ File.c_str(), Tags.FindS("Pin-Priority").c_str(),
+ std::numeric_limits<short>::min(),
+ std::numeric_limits<short>::max());
+ }
if (priority == 0)
{
- _error->Warning(_("No priority (or zero) specified for pin"));
- continue;
+ return _error->Error(_("No priority (or zero) specified for pin"));
}
istringstream s(Name);
@@ -440,3 +504,5 @@ bool ReadPinFile(pkgPolicy &Plcy,string File)
return true;
}
/*}}}*/
+
+pkgPolicy::~pkgPolicy() {delete [] PFPriority; delete [] Pins; delete [] VerPins; }
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 22:02:30 +0000