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-rw-r--r--cmdline/apt-cache.cc176
1 files changed, 123 insertions, 53 deletions
diff --git a/cmdline/apt-cache.cc b/cmdline/apt-cache.cc
index 0a2c28d23..e847de875 100644
--- a/cmdline/apt-cache.cc
+++ b/cmdline/apt-cache.cc
@@ -1127,6 +1127,24 @@ bool Dotty(CommandLine &CmdL)
// ---------------------------------------------------------------------
/* This displays the package record from the proper package index file.
It is not used by DumpAvail for performance reasons. */
+
+static unsigned char const* skipDescriptionFields(unsigned char const * DescP)
+{
+ char const * const TagName = "\nDescription";
+ size_t const TagLen = strlen(TagName);
+ while ((DescP = (unsigned char*)strchr((char*)DescP, '\n')) != NULL)
+ {
+ if (DescP[1] == ' ')
+ DescP += 2;
+ else if (strncmp((char*)DescP, TagName, TagLen) == 0)
+ DescP += TagLen;
+ else
+ break;
+ }
+ if (DescP != NULL)
+ ++DescP;
+ return DescP;
+}
bool DisplayRecord(pkgCacheFile &CacheFile, pkgCache::VerIterator V)
{
pkgCache *Cache = CacheFile.GetPkgCache();
@@ -1150,21 +1168,27 @@ bool DisplayRecord(pkgCacheFile &CacheFile, pkgCache::VerIterator V)
if (PkgF.Open(I.FileName(), FileFd::ReadOnly, FileFd::Extension) == false)
return false;
- // Read the record
- unsigned char *Buffer = new unsigned char[Cache->HeaderP->MaxVerFileSize+1];
- Buffer[V.FileList()->Size] = '\n';
- if (PkgF.Seek(V.FileList()->Offset) == false ||
- PkgF.Read(Buffer,V.FileList()->Size) == false)
+ // Read the record (and ensure that it ends with a newline and NUL)
+ unsigned char *Buffer = new unsigned char[Cache->HeaderP->MaxVerFileSize+2];
+ Buffer[Vf->Size] = '\n';
+ Buffer[Vf->Size+1] = '\0';
+ if (PkgF.Seek(Vf->Offset) == false ||
+ PkgF.Read(Buffer,Vf->Size) == false)
{
delete [] Buffer;
return false;
}
// Get a pointer to start of Description field
- const unsigned char *DescP = (unsigned char*)strstr((char*)Buffer, "Description:");
+ const unsigned char *DescP = (unsigned char*)strstr((char*)Buffer, "\nDescription");
+ if (DescP != NULL)
+ ++DescP;
+ else
+ DescP = Buffer + Vf->Size;
// Write all but Description
- if (fwrite(Buffer,1,DescP - Buffer,stdout) < (size_t)(DescP - Buffer))
+ size_t const length = DescP - Buffer;
+ if (length != 0 && FileFd::Write(STDOUT_FILENO, Buffer, length) == false)
{
delete [] Buffer;
return false;
@@ -1173,29 +1197,44 @@ bool DisplayRecord(pkgCacheFile &CacheFile, pkgCache::VerIterator V)
// Show the right description
pkgRecords Recs(*Cache);
pkgCache::DescIterator Desc = V.TranslatedDescription();
- pkgRecords::Parser &P = Recs.Lookup(Desc.FileList());
- cout << "Description" << ( (strcmp(Desc.LanguageCode(),"") != 0) ? "-" : "" ) << Desc.LanguageCode() << ": " << P.LongDesc();
+ if (Desc.end() == false)
+ {
+ pkgRecords::Parser &P = Recs.Lookup(Desc.FileList());
+ cout << "Description" << ( (strcmp(Desc.LanguageCode(),"") != 0) ? "-" : "" ) << Desc.LanguageCode() << ": " << P.LongDesc();
+ cout << std::endl << "Description-md5: " << Desc.md5() << std::endl;
+
+ // Find the first field after the description (if there is any)
+ DescP = skipDescriptionFields(DescP);
+ }
+ // else we have no translation, so we found a lonely Description-md5 -> don't skip it
- // Find the first field after the description (if there is any)
- for(DescP++;DescP != &Buffer[V.FileList()->Size];DescP++)
+ // write the rest of the buffer, but skip mixed in Descriptions* fields
+ while (DescP != NULL)
{
- if(*DescP == '\n' && *(DescP+1) != ' ')
+ const unsigned char * const Start = DescP;
+ const unsigned char *End = (unsigned char*)strstr((char*)DescP, "\nDescription");
+ if (End == NULL)
{
- // write the rest of the buffer
- const unsigned char *end=&Buffer[V.FileList()->Size];
- if (fwrite(DescP,1,end-DescP,stdout) < (size_t)(end-DescP))
- {
- delete [] Buffer;
- return false;
- }
-
- break;
+ End = &Buffer[Vf->Size];
+ DescP = NULL;
+ }
+ else
+ {
+ ++End; // get the newline into the output
+ DescP = skipDescriptionFields(End + strlen("Description"));
+ }
+ size_t const length = End - Start;
+ if (length != 0 && FileFd::Write(STDOUT_FILENO, Start, length) == false)
+ {
+ delete [] Buffer;
+ return false;
}
}
- // write a final newline (after the description)
+
+ // write a final newline after the last field
cout<<endl;
- delete [] Buffer;
+ delete [] Buffer;
return true;
}
/*}}}*/
@@ -1203,7 +1242,7 @@ bool DisplayRecord(pkgCacheFile &CacheFile, pkgCache::VerIterator V)
struct ExDescFile
{
pkgCache::DescFile *Df;
- bool NameMatch;
+ map_ptrloc ID;
};
// Search - Perform a search /*{{{*/
@@ -1246,37 +1285,52 @@ bool Search(CommandLine &CmdL)
return false;
}
- ExDescFile *DFList = new ExDescFile[Cache->HeaderP->GroupCount+1];
- memset(DFList,0,sizeof(*DFList)*Cache->HeaderP->GroupCount+1);
+ size_t const descCount = Cache->HeaderP->GroupCount + 1;
+ ExDescFile *DFList = new ExDescFile[descCount];
+ memset(DFList,0,sizeof(*DFList) * descCount);
+
+ bool PatternMatch[descCount * NumPatterns];
+ memset(PatternMatch,false,sizeof(PatternMatch));
// Map versions that we want to write out onto the VerList array.
for (pkgCache::GrpIterator G = Cache->GrpBegin(); G.end() == false; ++G)
{
- if (DFList[G->ID].NameMatch == true)
- continue;
-
- DFList[G->ID].NameMatch = true;
- for (unsigned I = 0; I != NumPatterns; I++)
+ size_t const PatternOffset = G->ID * NumPatterns;
+ size_t unmatched = 0, matched = 0;
+ for (unsigned I = 0; I < NumPatterns; ++I)
{
- if (regexec(&Patterns[I],G.Name(),0,0,0) == 0)
- continue;
- DFList[G->ID].NameMatch = false;
- break;
+ if (PatternMatch[PatternOffset + I] == true)
+ ++matched;
+ else if (regexec(&Patterns[I],G.Name(),0,0,0) == 0)
+ PatternMatch[PatternOffset + I] = true;
+ else
+ ++unmatched;
}
-
- // Doing names only, drop any that dont match..
- if (NamesOnly == true && DFList[G->ID].NameMatch == false)
+
+ // already dealt with this package?
+ if (matched == NumPatterns)
continue;
-
+
+ // Doing names only, drop any that don't match..
+ if (NamesOnly == true && unmatched == NumPatterns)
+ continue;
+
// Find the proper version to use
pkgCache::PkgIterator P = G.FindPreferredPkg();
if (P.end() == true)
continue;
pkgCache::VerIterator V = Plcy->GetCandidateVer(P);
if (V.end() == false)
- DFList[G->ID].Df = V.TranslatedDescription().FileList();
+ {
+ pkgCache::DescIterator const D = V.TranslatedDescription();
+ //FIXME: packages without a description can't be found
+ if (D.end() == true)
+ continue;
+ DFList[G->ID].Df = D.FileList();
+ DFList[G->ID].ID = G->ID;
+ }
- if (DFList[G->ID].NameMatch == false)
+ if (unmatched == NumPatterns)
continue;
// Include all the packages that provide matching names too
@@ -1287,34 +1341,50 @@ bool Search(CommandLine &CmdL)
continue;
unsigned long id = Prv.OwnerPkg().Group()->ID;
- DFList[id].Df = V.TranslatedDescription().FileList();
- DFList[id].NameMatch = true;
+ pkgCache::DescIterator const D = V.TranslatedDescription();
+ //FIXME: packages without a description can't be found
+ if (D.end() == true)
+ continue;
+ DFList[id].Df = D.FileList();
+ DFList[id].ID = id;
+
+ size_t const PrvPatternOffset = id * NumPatterns;
+ for (unsigned I = 0; I < NumPatterns; ++I)
+ PatternMatch[PrvPatternOffset + I] = PatternMatch[PatternOffset + I];
}
}
-
+
LocalitySort(&DFList->Df,Cache->HeaderP->GroupCount,sizeof(*DFList));
// Create the text record parser
pkgRecords Recs(*Cache);
// Iterate over all the version records and check them
- for (ExDescFile *J = DFList; J->Df != 0; J++)
+ for (ExDescFile *J = DFList; J->Df != 0; ++J)
{
pkgRecords::Parser &P = Recs.Lookup(pkgCache::DescFileIterator(*Cache,J->Df));
+ size_t const PatternOffset = J->ID * NumPatterns;
- if (J->NameMatch == false && NamesOnly == false)
+ if (NamesOnly == false)
{
string const LongDesc = P.LongDesc();
- J->NameMatch = true;
- for (unsigned I = 0; I != NumPatterns; I++)
+ for (unsigned I = 0; I < NumPatterns; ++I)
{
- if (regexec(&Patterns[I],LongDesc.c_str(),0,0,0) == 0)
+ if (PatternMatch[PatternOffset + I] == true)
continue;
- J->NameMatch = false;
- break;
+ else if (regexec(&Patterns[I],LongDesc.c_str(),0,0,0) == 0)
+ PatternMatch[PatternOffset + I] = true;
}
}
-
- if (J->NameMatch == true)
+
+ bool matchedAll = true;
+ for (unsigned I = 0; I < NumPatterns; ++I)
+ if (PatternMatch[PatternOffset + I] == false)
+ {
+ matchedAll = false;
+ break;
+ }
+
+ if (matchedAll == true)
{
if (ShowFull == true)
{
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 01:11:17 +0000