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-rw-r--r--apt-pkg/contrib/fileutl.cc11
-rw-r--r--apt-pkg/contrib/fileutl.h1
-rw-r--r--apt-pkg/pkgcachegen.cc23
-rw-r--r--apt-pkg/pkgcachegen.h2
-rw-r--r--apt-pkg/sourcelist.cc18
-rw-r--r--apt-pkg/sourcelist.h3
-rw-r--r--debian/changelog16
7 files changed, 68 insertions, 6 deletions
diff --git a/apt-pkg/contrib/fileutl.cc b/apt-pkg/contrib/fileutl.cc
index 50019872e..85dc6f600 100644
--- a/apt-pkg/contrib/fileutl.cc
+++ b/apt-pkg/contrib/fileutl.cc
@@ -446,6 +446,17 @@ string SafeGetCWD()
return S;
}
/*}}}*/
+// GetModificationTime - Get the mtime of the given file or -1 on error /*{{{*/
+// ---------------------------------------------------------------------
+/* We return / on failure. */
+time_t GetModificationTime(string const &Path)
+{
+ struct stat St;
+ if (stat(Path.c_str(), &St) < 0)
+ return -1;
+ return St.st_mtime;
+}
+ /*}}}*/
// flNotDir - Strip the directory from the filename /*{{{*/
// ---------------------------------------------------------------------
/* */
diff --git a/apt-pkg/contrib/fileutl.h b/apt-pkg/contrib/fileutl.h
index cde288ad2..a1b177f38 100644
--- a/apt-pkg/contrib/fileutl.h
+++ b/apt-pkg/contrib/fileutl.h
@@ -97,6 +97,7 @@ bool FileExists(string File);
bool RealFileExists(string File);
bool DirectoryExists(string const &Path) __attrib_const;
bool CreateDirectory(string const &Parent, string const &Path);
+time_t GetModificationTime(string const &Path);
/** \brief Ensure the existence of the given Path
*
diff --git a/apt-pkg/pkgcachegen.cc b/apt-pkg/pkgcachegen.cc
index 8f9737e26..efd764b51 100644
--- a/apt-pkg/pkgcachegen.cc
+++ b/apt-pkg/pkgcachegen.cc
@@ -105,6 +105,9 @@ void pkgCacheGenerator::ReMap(void const * const oldMap, void const * const newM
if (oldMap == newMap)
return;
+ if (_config->FindB("Debug::pkgCacheGen", false))
+ std::clog << "Remaping from " << oldMap << " to " << newMap << std::endl;
+
Cache.ReMap(false);
CurrentFile += (pkgCache::PackageFile*) newMap - (pkgCache::PackageFile*) oldMap;
@@ -684,7 +687,7 @@ bool pkgCacheGenerator::NewDepends(pkgCache::PkgIterator &Pkg,
string const &Version,
unsigned int const &Op,
unsigned int const &Type,
- map_ptrloc *OldDepLast)
+ map_ptrloc* &OldDepLast)
{
void const * const oldMap = Map.Data();
// Get a structure
@@ -915,8 +918,11 @@ unsigned long pkgCacheGenerator::WriteUniqString(const char *S,
/* This just verifies that each file in the list of index files exists,
has matching attributes with the cache and the cache does not have
any extra files. */
-static bool CheckValidity(const string &CacheFile, FileIterator Start,
- FileIterator End,MMap **OutMap = 0)
+static bool CheckValidity(const string &CacheFile,
+ pkgSourceList &List,
+ FileIterator Start,
+ FileIterator End,
+ MMap **OutMap = 0)
{
bool const Debug = _config->FindB("Debug::pkgCacheGen", false);
// No file, certainly invalid
@@ -927,6 +933,13 @@ static bool CheckValidity(const string &CacheFile, FileIterator Start,
return false;
}
+ if (List.GetLastModifiedTime() < GetModificationTime(CacheFile))
+ {
+ if (Debug == true)
+ std::clog << "sources.list is newer than the cache" << std::endl;
+ return false;
+ }
+
// Map it
FileFd CacheF(CacheFile,FileFd::ReadOnly);
SPtr<MMap> Map = new MMap(CacheF,0);
@@ -1152,7 +1165,7 @@ bool pkgCacheGenerator::MakeStatusCache(pkgSourceList &List,OpProgress *Progress
Progress->OverallProgress(0,1,1,_("Reading package lists"));
// Cache is OK, Fin.
- if (CheckValidity(CacheFile,Files.begin(),Files.end(),OutMap) == true)
+ if (CheckValidity(CacheFile, List, Files.begin(),Files.end(),OutMap) == true)
{
if (Progress != NULL)
Progress->OverallProgress(1,1,1,_("Reading package lists"));
@@ -1205,7 +1218,7 @@ bool pkgCacheGenerator::MakeStatusCache(pkgSourceList &List,OpProgress *Progress
// Lets try the source cache.
unsigned long CurrentSize = 0;
unsigned long TotalSize = 0;
- if (CheckValidity(SrcCacheFile,Files.begin(),
+ if (CheckValidity(SrcCacheFile, List, Files.begin(),
Files.begin()+EndOfSource) == true)
{
if (Debug == true)
diff --git a/apt-pkg/pkgcachegen.h b/apt-pkg/pkgcachegen.h
index ff198833a..c26051182 100644
--- a/apt-pkg/pkgcachegen.h
+++ b/apt-pkg/pkgcachegen.h
@@ -75,7 +75,7 @@ class pkgCacheGenerator /*{{{*/
bool NewFileDesc(pkgCache::DescIterator &Desc,ListParser &List);
bool NewDepends(pkgCache::PkgIterator &Pkg, pkgCache::VerIterator &Ver,
string const &Version, unsigned int const &Op,
- unsigned int const &Type, map_ptrloc *OldDepLast);
+ unsigned int const &Type, map_ptrloc* &OldDepLast);
unsigned long NewVersion(pkgCache::VerIterator &Ver,const string &VerStr,unsigned long Next);
map_ptrloc NewDescription(pkgCache::DescIterator &Desc,const string &Lang,const MD5SumValue &md5sum,map_ptrloc Next);
diff --git a/apt-pkg/sourcelist.cc b/apt-pkg/sourcelist.cc
index 851eefdfe..c96ccfd77 100644
--- a/apt-pkg/sourcelist.cc
+++ b/apt-pkg/sourcelist.cc
@@ -341,4 +341,22 @@ bool pkgSourceList::ReadSourceDir(string Dir)
}
/*}}}*/
+// GetLastModified() /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+time_t pkgSourceList::GetLastModifiedTime()
+{
+ // go over the parts
+ string Main = _config->FindFile("Dir::Etc::sourcelist");
+ string Parts = _config->FindDir("Dir::Etc::sourceparts");
+ vector<string> const List = GetListOfFilesInDir(Parts, "list", true);
+
+ // calculate the time
+ time_t mtime_sources = GetModificationTime(Main);
+ for (vector<string>::const_iterator I = List.begin(); I != List.end(); I++)
+ mtime_sources = std::max(mtime_sources, GetModificationTime(*I));
+
+ return mtime_sources;
+}
+ /*}}}*/
diff --git a/apt-pkg/sourcelist.h b/apt-pkg/sourcelist.h
index e15314a5e..7b473ee64 100644
--- a/apt-pkg/sourcelist.h
+++ b/apt-pkg/sourcelist.h
@@ -92,6 +92,9 @@ class pkgSourceList
pkgIndexFile *&Found) const;
bool GetIndexes(pkgAcquire *Owner, bool GetAll=false) const;
+ // query last-modified time
+ time_t GetLastModifiedTime();
+
pkgSourceList();
pkgSourceList(string File);
~pkgSourceList();
diff --git a/debian/changelog b/debian/changelog
index de405738b..e745eaa7a 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,19 @@
+apt (0.8.15.4ubuntu2) UNRELEASED; urgency=low
+
+ * apt-pkg/contrib/fileutl.{cc,h}:
+ - add GetModificationTime() helper
+ * apt-pkg/pkgcachegen.cc:
+ - regenerate the cache if the sources.list changes to ensure
+ that changes in the ordering there will be honored by apt
+ * apt-pkg/sourcelist.{cc,h}:
+ - add pkgSourceList::GetLastModifiedTime() helper
+ * apt-pkg/pkgcachegen.{cc,h}:
+ - use ref-to-ptr semantic in NewDepends() to ensure that the
+ libapt does not segfault if the cache is remapped in between
+ (LP: #812862)
+
+ -- Michael Vogt <mvo@debian.org> Tue, 12 Jul 2011 11:54:47 +0200
+
apt (0.8.15.4ubuntu1) oneiric; urgency=low
* merged from debian-sid
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-23 18:32:11 +0000