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-rw-r--r--apt-private/private-show.cc187
1 files changed, 152 insertions, 35 deletions
diff --git a/apt-private/private-show.cc b/apt-private/private-show.cc
index 3a393b746..1bf712684 100644
--- a/apt-private/private-show.cc
+++ b/apt-private/private-show.cc
@@ -29,23 +29,15 @@
#include <apti18n.h>
/*}}}*/
-namespace APT {
- namespace Cmd {
-
-// DisplayRecord - Displays the complete record for the package /*{{{*/
-// ---------------------------------------------------------------------
-static bool DisplayRecord(pkgCacheFile &CacheFile, pkgCache::VerIterator V,
- std::ostream &out)
+static bool OpenPackagesFile(pkgCacheFile &CacheFile, pkgCache::VerIterator const &V,/*{{{*/
+ FileFd &PkgF, pkgCache::VerFileIterator &Vf)
{
- pkgCache *Cache = CacheFile.GetPkgCache();
+ pkgCache const * const Cache = CacheFile.GetPkgCache();
if (unlikely(Cache == NULL))
return false;
- pkgDepCache *depCache = CacheFile.GetDepCache();
- if (unlikely(depCache == NULL))
- return false;
// Find an appropriate file
- pkgCache::VerFileIterator Vf = V.FileList();
+ Vf = V.FileList();
for (; Vf.end() == false; ++Vf)
if ((Vf.File()->Flags & pkgCache::Flag::NotSource) == 0)
break;
@@ -57,6 +49,122 @@ static bool DisplayRecord(pkgCacheFile &CacheFile, pkgCache::VerIterator V,
if (I.IsOk() == false)
return _error->Error(_("Package file %s is out of sync."),I.FileName());
+ // Read the record
+ return PkgF.Open(I.FileName(), FileFd::ReadOnly, FileFd::Extension);
+}
+ /*}}}*/
+static APT_PURE 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 DisplayRecordV1(pkgCacheFile &CacheFile, pkgCache::VerIterator const &V,/*{{{*/
+ std::ostream &out)
+{
+ FileFd PkgF;
+ pkgCache::VerFileIterator Vf;
+ if (OpenPackagesFile(CacheFile, V, PkgF, Vf) == false)
+ return false;
+
+ pkgCache * const Cache = CacheFile.GetPkgCache();
+ if (unlikely(Cache == NULL))
+ return 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, "\nDescription");
+ if (DescP != NULL)
+ ++DescP;
+ else
+ DescP = Buffer + Vf->Size;
+
+ // Write all but Description
+ size_t const length = DescP - Buffer;
+ if (length != 0 && FileFd::Write(STDOUT_FILENO, Buffer, length) == false)
+ {
+ delete [] Buffer;
+ return false;
+ }
+
+ // Show the right description
+ pkgRecords Recs(*Cache);
+ pkgCache::DescIterator Desc = V.TranslatedDescription();
+ if (Desc.end() == false)
+ {
+ pkgRecords::Parser &P = Recs.Lookup(Desc.FileList());
+ out << "Description" << ( (strcmp(Desc.LanguageCode(),"") != 0) ? "-" : "" ) << Desc.LanguageCode() << ": " << P.LongDesc();
+ out << 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
+
+ // write the rest of the buffer, but skip mixed in Descriptions* fields
+ while (DescP != NULL)
+ {
+ const unsigned char * const Start = DescP;
+ const unsigned char *End = (unsigned char*)strstr((char*)DescP, "\nDescription");
+ if (End == NULL)
+ {
+ 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 last field
+ out << std::endl;
+
+ delete [] Buffer;
+ return true;
+}
+ /*}}}*/
+static bool DisplayRecordV2(pkgCacheFile &CacheFile, pkgCache::VerIterator const &V,/*{{{*/
+ std::ostream &out)
+{
+ FileFd PkgF;
+ pkgCache::VerFileIterator Vf;
+ if (OpenPackagesFile(CacheFile, V, PkgF, Vf) == false)
+ return false;
+
+ // Check and load the package list file
+ pkgCache::PkgFileIterator I = Vf.File();
+ if (I.IsOk() == false)
+ return _error->Error(_("Package file %s is out of sync."),I.FileName());
+
// find matching sources.list metaindex
pkgSourceList *SrcList = CacheFile.GetSourceList();
pkgIndexFile *Index;
@@ -67,9 +175,6 @@ static bool DisplayRecord(pkgCacheFile &CacheFile, pkgCache::VerIterator V,
std::string source_index_file = Index->Describe(true);
// Read the record
- FileFd PkgF;
- if (PkgF.Open(I.FileName(), FileFd::ReadOnly, FileFd::Extension) == false)
- return false;
pkgTagSection Tags;
pkgTagFile TagF(&PkgF);
@@ -88,13 +193,15 @@ static bool DisplayRecord(pkgCacheFile &CacheFile, pkgCache::VerIterator V,
else
package_size = _("unknown");
- pkgDepCache::StateCache &state = (*depCache)[V.ParentPkg()];
- bool is_installed = V.ParentPkg().CurrentVer() == V;
- const char *manual_installed;
- if (is_installed)
+ const char *manual_installed = nullptr;
+ if (V.ParentPkg().CurrentVer() == V)
+ {
+ pkgDepCache *depCache = CacheFile.GetDepCache();
+ if (unlikely(depCache == nullptr))
+ return false;
+ pkgDepCache::StateCache &state = (*depCache)[V.ParentPkg()];
manual_installed = !(state.Flags & pkgCache::Flag::Auto) ? "yes" : "no";
- else
- manual_installed = "";
+ }
// FIXME: add verbose that does not do the removal of the tags?
std::vector<pkgTagSection::Tag> RW;
@@ -115,7 +222,8 @@ static bool DisplayRecord(pkgCacheFile &CacheFile, pkgCache::VerIterator V,
RW.push_back(pkgTagSection::Tag::Remove("Size"));
RW.push_back(pkgTagSection::Tag::Rewrite("Download-Size", package_size));
// add
- RW.push_back(pkgTagSection::Tag::Rewrite("APT-Manual-Installed", manual_installed));
+ if (manual_installed != nullptr)
+ RW.push_back(pkgTagSection::Tag::Rewrite("APT-Manual-Installed", manual_installed));
RW.push_back(pkgTagSection::Tag::Rewrite("APT-Sources", source_index_file));
FileFd stdoutfd;
@@ -124,6 +232,9 @@ static bool DisplayRecord(pkgCacheFile &CacheFile, pkgCache::VerIterator V,
return _error->Error("Internal Error, Unable to parse a package record");
// write the description
+ pkgCache * const Cache = CacheFile.GetPkgCache();
+ if (unlikely(Cache == NULL))
+ return false;
pkgRecords Recs(*Cache);
// FIXME: show (optionally) all available translations(?)
pkgCache::DescIterator Desc = V.TranslatedDescription();
@@ -143,12 +254,19 @@ bool ShowPackage(CommandLine &CmdL) /*{{{*/
{
pkgCacheFile CacheFile;
CacheSetHelperVirtuals helper(true, GlobalError::NOTICE);
- APT::CacheSetHelper::VerSelector const select = _config->FindB("APT::Cache::AllVersions", false) ?
+ APT::CacheSetHelper::VerSelector const select = _config->FindB("APT::Cache::AllVersions", true) ?
APT::CacheSetHelper::ALL : APT::CacheSetHelper::CANDIDATE;
APT::VersionList const verset = APT::VersionList::FromCommandLine(CacheFile, CmdL.FileList + 1, select, helper);
+ int const ShowVersion = _config->FindI("APT::Cache::Show::Version", 1);
for (APT::VersionList::const_iterator Ver = verset.begin(); Ver != verset.end(); ++Ver)
- if (DisplayRecord(CacheFile, Ver, c1out) == false)
- return false;
+ if (ShowVersion <= 1)
+ {
+ if (DisplayRecordV1(CacheFile, Ver, std::cout) == false)
+ return false;
+ }
+ else
+ if (DisplayRecordV2(CacheFile, Ver, c1out) == false)
+ return false;
if (select == APT::CacheSetHelper::CANDIDATE)
{
@@ -158,14 +276,15 @@ bool ShowPackage(CommandLine &CmdL) /*{{{*/
_error->Notice(P_("There is %i additional record. Please use the '-a' switch to see it", "There are %i additional records. Please use the '-a' switch to see them.", records), records);
}
- for (APT::PackageSet::const_iterator Pkg = helper.virtualPkgs.begin();
- Pkg != helper.virtualPkgs.end(); ++Pkg)
- {
- c1out << "Package: " << Pkg.FullName(true) << std::endl;
- c1out << "State: " << _("not a real package (virtual)") << std::endl;
- // FIXME: show providers, see private-cacheset.h
- // CacheSetHelperAPTGet::showVirtualPackageErrors()
- }
+ if (_config->FindB("APT::Cache::ShowVirtuals", false) == true)
+ for (APT::PackageSet::const_iterator Pkg = helper.virtualPkgs.begin();
+ Pkg != helper.virtualPkgs.end(); ++Pkg)
+ {
+ c1out << "Package: " << Pkg.FullName(true) << std::endl;
+ c1out << "State: " << _("not a real package (virtual)") << std::endl;
+ // FIXME: show providers, see private-cacheset.h
+ // CacheSetHelperAPTGet::showVirtualPackageErrors()
+ }
if (verset.empty() == true)
{
@@ -178,5 +297,3 @@ bool ShowPackage(CommandLine &CmdL) /*{{{*/
return true;
}
/*}}}*/
-} // namespace Cmd
-} // namespace APT
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-20 20:28:29 +0000