#include <apt-pkg/pkgcache.h>
#include <apt-pkg/cacheiterators.h>
#include <apt-pkg/tagfile.h>
+#include <apt-pkg/tagfile-keys.h>
#include <apt-pkg/macros.h>
#include <stddef.h>
in Step(), if no Architecture is given we will accept every arch
we would accept in general with checkArchitecture() */
debListParser::debListParser(FileFd *File) :
- pkgCacheListParser(), d(NULL), Tags(File)
+ pkgCacheListParser(), Tags(File)
{
+ // this dance allows an empty value to override the default
+ if (_config->Exists("pkgCacheGen::ForceEssential"))
+ {
+ forceEssential = _config->FindVector("pkgCacheGen::ForceEssential");
+ if (forceEssential.empty() == false && _config->Find("pkgCacheGen::ForceEssential").empty())
+ forceEssential.emplace_back("apt");
+ }
+ else
+ forceEssential.emplace_back("apt");
+ forceImportant = _config->FindVector("pkgCacheGen::ForceImportant");
}
/*}}}*/
// ListParser::Package - Return the package name /*{{{*/
// ---------------------------------------------------------------------
/* This is to return the name of the package this section describes */
string debListParser::Package() {
- string Result = Section.Find("Package").to_string();
+ string Result = Section.Find(pkgTagSection::Key::Package).to_string();
// Normalize mixed case package names to lower case, like dpkg does
// See Bug#807012 for details
// ---------------------------------------------------------------------
/* This will return the Architecture of the package this section describes */
APT::StringView debListParser::Architecture() {
- auto const Arch = Section.Find("Architecture");
+ auto const Arch = Section.Find(pkgTagSection::Key::Architecture);
return Arch.empty() ? "none" : Arch;
}
/*}}}*/
// ---------------------------------------------------------------------
/* */
bool debListParser::ArchitectureAll() {
- return Section.Find("Architecture") == "all";
+ return Section.Find(pkgTagSection::Key::Architecture) == "all";
}
/*}}}*/
// ListParser::Version - Return the version string /*{{{*/
entry is assumed to only describe package properties */
APT::StringView debListParser::Version()
{
- return Section.Find("Version");
+ return Section.Find(pkgTagSection::Key::Version);
}
/*}}}*/
unsigned char debListParser::ParseMultiArch(bool const showErrors) /*{{{*/
{
unsigned char MA;
- auto const MultiArch = Section.Find("Multi-Arch");
+ auto const MultiArch = Section.Find(pkgTagSection::Key::Multi_Arch);
if (MultiArch.empty() == true || MultiArch == "no")
MA = pkgCache::Version::No;
else if (MultiArch == "same") {
const char *Stop;
// Parse the section
- if (Section.Find("Section",Start,Stop) == true)
+ if (Section.Find(pkgTagSection::Key::Section,Start,Stop) == true)
{
map_stringitem_t const idx = StoreString(pkgCacheGenerator::SECTION, Start, Stop - Start);
Ver->Section = idx;
pkgCache::GrpIterator G = Ver.ParentPkg().Group();
Ver->SourcePkgName = G->Name;
Ver->SourceVerStr = Ver->VerStr;
- if (Section.Find("Source",Start,Stop) == true)
+ if (Section.Find(pkgTagSection::Key::Source,Start,Stop) == true)
{
const char * const Space = (const char * const) memchr(Start, ' ', Stop - Start);
pkgCache::VerIterator V;
Ver->MultiArch = ParseMultiArch(true);
// Archive Size
- Ver->Size = Section.FindULL("Size");
+ Ver->Size = Section.FindULL(pkgTagSection::Key::Size);
// Unpacked Size (in K)
- Ver->InstalledSize = Section.FindULL("Installed-Size");
+ Ver->InstalledSize = Section.FindULL(pkgTagSection::Key::Installed_Size);
Ver->InstalledSize *= 1024;
// Priority
- if (Section.Find("Priority",Start,Stop) == true)
+ if (Section.Find(pkgTagSection::Key::Priority,Start,Stop) == true)
{
if (GrabWord(StringView(Start,Stop-Start),PrioList,Ver->Priority) == false)
Ver->Priority = pkgCache::State::Extra;
}
- if (ParseDepends(Ver,"Pre-Depends",pkgCache::Dep::PreDepends) == false)
+ if (ParseDepends(Ver,pkgTagSection::Key::Pre_Depends,pkgCache::Dep::PreDepends) == false)
return false;
- if (ParseDepends(Ver,"Depends",pkgCache::Dep::Depends) == false)
+ if (ParseDepends(Ver,pkgTagSection::Key::Depends,pkgCache::Dep::Depends) == false)
return false;
- if (ParseDepends(Ver,"Conflicts",pkgCache::Dep::Conflicts) == false)
+ if (ParseDepends(Ver,pkgTagSection::Key::Conflicts,pkgCache::Dep::Conflicts) == false)
return false;
- if (ParseDepends(Ver,"Breaks",pkgCache::Dep::DpkgBreaks) == false)
+ if (ParseDepends(Ver,pkgTagSection::Key::Breaks,pkgCache::Dep::DpkgBreaks) == false)
return false;
- if (ParseDepends(Ver,"Recommends",pkgCache::Dep::Recommends) == false)
+ if (ParseDepends(Ver,pkgTagSection::Key::Recommends,pkgCache::Dep::Recommends) == false)
return false;
- if (ParseDepends(Ver,"Suggests",pkgCache::Dep::Suggests) == false)
+ if (ParseDepends(Ver,pkgTagSection::Key::Suggests,pkgCache::Dep::Suggests) == false)
return false;
- if (ParseDepends(Ver,"Replaces",pkgCache::Dep::Replaces) == false)
+ if (ParseDepends(Ver,pkgTagSection::Key::Replaces,pkgCache::Dep::Replaces) == false)
return false;
- if (ParseDepends(Ver,"Enhances",pkgCache::Dep::Enhances) == false)
+ if (ParseDepends(Ver,pkgTagSection::Key::Enhances,pkgCache::Dep::Enhances) == false)
return false;
// Obsolete.
- if (ParseDepends(Ver,"Optional",pkgCache::Dep::Suggests) == false)
+ if (ParseDepends(Ver,pkgTagSection::Key::Optional,pkgCache::Dep::Suggests) == false)
return false;
if (ParseProvides(Ver) == false)
return false;
+ if (ParseTag(Ver) == false)
+ return false;
return true;
}
std::vector<std::string> const understood = APT::Configuration::getLanguages();
std::vector<std::string> avail;
static constexpr int prefixLen = 12;
- static constexpr int avgLanguageLen = 5;
- std::string tagname;
-
- tagname.reserve(prefixLen + avgLanguageLen);
- tagname.assign("Description-");
+ char buf[32] = "Description-";
if (Section.Exists("Description") == true)
avail.push_back("");
for (std::vector<std::string>::const_iterator lang = understood.begin(); lang != understood.end(); ++lang)
{
- tagname.resize(prefixLen);
- tagname.append(*lang);
- if (Section.Exists(tagname) == true)
+ if (unlikely(lang->size() > sizeof(buf) - prefixLen)) {
+ _error->Warning("Ignoring translated description %s", lang->c_str());
+ continue;
+ }
+ memcpy(buf + prefixLen, lang->c_str(), lang->size());
+ if (Section.Exists(StringView(buf, prefixLen + lang->size())) == true)
avail.push_back(*lang);
}
return avail;
description. If no Description-md5 is found in the section it will be
calculated.
*/
-MD5SumValue debListParser::Description_md5()
+APT::StringView debListParser::Description_md5()
{
- StringView const value = Section.Find("Description-md5");
- if (value.empty() == true)
+ StringView const value = Section.Find(pkgTagSection::Key::Description_md5);
+ if (unlikely(value.empty() == true))
{
- StringView const desc = Section.Find("Description");
+ StringView const desc = Section.Find(pkgTagSection::Key::Description);
if (desc == "\n")
- return MD5SumValue();
+ return StringView();
MD5Summation md5;
md5.Add(desc.data(), desc.size());
md5.Add("\n");
- return md5.Result();
+ MD5Buffer = md5.Result();
+ return StringView(MD5Buffer);
}
else if (likely(value.size() == 32))
{
- MD5SumValue sumvalue;
- if (sumvalue.Set(value))
- return sumvalue;
-
- _error->Error("Malformed Description-md5 line; includes invalid character '%.*s'", (int)value.length(), value.data());
- return MD5SumValue();
+ return value;
}
_error->Error("Malformed Description-md5 line; doesn't have the required length (32 != %d) '%.*s'", (int)value.size(), (int)value.length(), value.data());
- return MD5SumValue();
+ return StringView();
}
/*}}}*/
// ListParser::UsePackage - Update a package structure /*{{{*/
string const static essential = _config->Find("pkgCacheGen::Essential", "all");
if (essential == "all" ||
(essential == "native" && Pkg->Arch != 0 && myArch == Pkg.Arch()))
- if (Section.FindFlag("Essential",Pkg->Flags,pkgCache::Flag::Essential) == false)
+ if (Section.FindFlag(pkgTagSection::Key::Essential,Pkg->Flags,pkgCache::Flag::Essential) == false)
return false;
- if (Section.FindFlag("Important",Pkg->Flags,pkgCache::Flag::Important) == false)
+ if (Section.FindFlag(pkgTagSection::Key::Important,Pkg->Flags,pkgCache::Flag::Important) == false)
return false;
- if (strcmp(Pkg.Name(),"apt") == 0)
+ if (std::find(forceEssential.begin(), forceEssential.end(), Pkg.Name()) != forceEssential.end())
{
if ((essential == "native" && Pkg->Arch != 0 && myArch == Pkg.Arch()) ||
essential == "all")
else
Pkg->Flags |= pkgCache::Flag::Important;
}
+ else if (std::find(forceImportant.begin(), forceImportant.end(), Pkg.Name()) != forceImportant.end())
+ Pkg->Flags |= pkgCache::Flag::Important;
if (ParseStatus(Pkg,Ver) == false)
return false;
/* */
unsigned short debListParser::VersionHash()
{
- static const StringView Sections[] ={"Installed-Size",
- "Depends",
- "Pre-Depends",
-// "Suggests",
-// "Recommends",
- "Conflicts",
- "Breaks",
- "Replaces"};
+ static constexpr pkgTagSection::Key Sections[] ={
+ pkgTagSection::Key::Installed_Size,
+ pkgTagSection::Key::Depends,
+ pkgTagSection::Key::Pre_Depends,
+// pkgTagSection::Key::Suggests,
+// pkgTagSection::Key::Recommends",
+ pkgTagSection::Key::Conflicts,
+ pkgTagSection::Key::Breaks,
+ pkgTagSection::Key::Replaces};
unsigned long Result = INIT_FCS;
- char S[1024];
- for (StringView I : Sections)
+ for (auto I : Sections)
{
const char *Start;
const char *End;
- if (Section.Find(I,Start,End) == false || End - Start >= (signed)sizeof(S))
+ if (Section.Find(I,Start,End) == false)
continue;
/* Strip out any spaces from the text, this undoes dpkgs reformatting
of certain fields. dpkg also has the rather interesting notion of
- reformatting depends operators < -> <= */
- char *J = S;
+ reformatting depends operators < -> <=, so we drop all = from the
+ string to make that not matter. */
for (; Start != End; ++Start)
{
- if (isspace_ascii(*Start) != 0)
+ if (isspace_ascii(*Start) != 0 || *Start == '=')
continue;
- *J++ = tolower_ascii(*Start);
-
- if ((*Start == '<' || *Start == '>') && Start[1] != *Start && Start[1] != '=')
- *J++ = '=';
+ Result = AddCRC16Byte(Result, tolower_ascii_unsafe(*Start));
}
- Result = AddCRC16(Result,S,J - S);
+
}
return Result;
{
const char *Start;
const char *Stop;
- if (Section.Find("Status",Start,Stop) == false)
+ if (Section.Find(pkgTagSection::Key::Status,Start,Stop) == false)
return true;
// UsePackage() is responsible for setting the flag in the default case
bool const static essential = _config->Find("pkgCacheGen::Essential", "") == "installed";
if (essential == true &&
- Section.FindFlag("Essential",Pkg->Flags,pkgCache::Flag::Essential) == false)
+ Section.FindFlag(pkgTagSection::Key::Essential,Pkg->Flags,pkgCache::Flag::Essential) == false)
return false;
// Isolate the first word
/* This is the higher level depends parser. It takes a tag and generates
a complete depends tree for the given version. */
bool debListParser::ParseDepends(pkgCache::VerIterator &Ver,
- StringView Tag,unsigned int Type)
+ pkgTagSection::Key Key,unsigned int Type)
{
const char *Start;
const char *Stop;
- if (Section.Find(Tag,Start,Stop) == false || Start == Stop)
+ if (Section.Find(Key,Start,Stop) == false || Start == Stop)
return true;
string const pkgArch = Ver.Arch();
Start = ParseDepends(Start, Stop, Package, Version, Op, false, false, false);
if (Start == 0)
- return _error->Error("Problem parsing dependency %.*s",(int)Tag.length(), Tag.data());
+ return _error->Error("Problem parsing dependency %zu",static_cast<size_t>(Key)); // TODO
size_t const found = Package.rfind(':');
if (found == string::npos)
string const Arch = Ver.Arch();
const char *Start;
const char *Stop;
- if (Section.Find("Provides",Start,Stop) == true)
+ if (Section.Find(pkgTagSection::Key::Provides,Start,Stop) == true)
{
StringView Package;
StringView Version;
return false;
}
}
+ return true;
+}
+ /*}}}*/
+// ListParser::ParseTag - Parse the tag list /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool debListParser::ParseTag(pkgCache::VerIterator &Ver)
+{
+ const char *Start;
+ const char *Stop;
+ if (Section.Find("Tag",Start,Stop) == false)
+ return true;
+
+ while (1) {
+ while (1) {
+ if (Start == Stop)
+ return true;
+ if (Stop[-1] != ' ' && Stop[-1] != '\t')
+ break;
+ --Stop;
+ }
+
+ const char *Begin = Stop - 1;
+ while (Begin != Start && Begin[-1] != ' ' && Begin[-1] != ',')
+ --Begin;
+
+ if (NewTag(Ver, Begin, Stop - Begin) == false)
+ return false;
+
+ while (1) {
+ if (Begin == Start)
+ return true;
+ if (Begin[-1] == ',')
+ break;
+ --Begin;
+ }
+
+ Stop = Begin - 1;
+ }
+
return true;
}
/*}}}*/
// status file has no (Download)Size, but all others are fair game
// status file is parsed last, so the first version we encounter is
// probably also the version we have downloaded
- unsigned long long const Size = Section.FindULL("Size");
- if (Size != 0 && Size != Ver->Size)
+ unsigned long long const Size = Section.FindULL(pkgTagSection::Key::Size);
+ if (Size != 0 && Ver->Size != 0 && Size != Ver->Size)
return false;
// available everywhere, but easier to check here than to include in VersionHash
unsigned char MultiArch = ParseMultiArch(false);
projects / apt.git / blobdiff