#include <apt-private/private-cacheset.h>
#include <apt-private/private-cmndline.h>
+#include <apt-private/private-show.h>
+#include <apt-private/private-search.h>
+#include <apt-private/private-main.h>
#include <regex.h>
#include <stddef.h>
using namespace std;
-// LocalitySort - Sort a version list by package file locality /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-static int LocalityCompare(const void *a, const void *b)
-{
- pkgCache::VerFile *A = *(pkgCache::VerFile **)a;
- pkgCache::VerFile *B = *(pkgCache::VerFile **)b;
-
- if (A == 0 && B == 0)
- return 0;
- if (A == 0)
- return 1;
- if (B == 0)
- return -1;
-
- if (A->File == B->File)
- return A->Offset - B->Offset;
- return A->File - B->File;
-}
-
-static void LocalitySort(pkgCache::VerFile **begin,
- unsigned long Count,size_t Size)
-{
- qsort(begin,Count,Size,LocalityCompare);
-}
-
-static void LocalitySort(pkgCache::DescFile **begin,
- unsigned long Count,size_t Size)
-{
- qsort(begin,Count,Size,LocalityCompare);
-}
- /*}}}*/
// UnMet - Show unmet dependencies /*{{{*/
// ---------------------------------------------------------------------
/* */
/* */
static bool Stats(CommandLine &CmdL)
{
- pkgCacheFile CacheFile;
- pkgCache *Cache = CacheFile.GetPkgCache();
-
if (CmdL.FileSize() > 1) {
_error->Error(_("apt-cache stats does not take any arguments"));
return false;
}
+
+ pkgCacheFile CacheFile;
+ pkgCache *Cache = CacheFile.GetPkgCache();
+
if (unlikely(Cache == NULL))
return false;
continue;
pkgCache::PkgIterator Trg = RevDepends ? D.ParentPkg() : D.TargetPkg();
- bool const showNoArch = RevDepends || (D->CompareOp & pkgCache::Dep::ArchSpecific) != pkgCache::Dep::ArchSpecific;
if((Installed && Trg->CurrentVer != 0) || !Installed)
{
if (ShowDepType == true)
cout << D.DepType() << ": ";
if (Trg->VersionList == 0)
- cout << "<" << Trg.FullName(showNoArch) << ">";
+ cout << "<" << Trg.FullName(true) << ">";
else
- cout << Trg.FullName(showNoArch);
+ cout << Trg.FullName(true);
if (ShowVersion == true && D->Version != 0)
cout << " (" << pkgCache::CompTypeDeb(D->CompareOp) << ' ' << D.TargetVer() << ')';
cout << std::endl;
return true;
}
/*}}}*/
-// DisplayRecord - Displays the complete record for the package /*{{{*/
-// ---------------------------------------------------------------------
-/* This displays the package record from the proper package index file.
- It is not used by DumpAvail for performance reasons. */
-
-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;
-}
-static bool DisplayRecord(pkgCacheFile &CacheFile, pkgCache::VerIterator V)
-{
- pkgCache *Cache = CacheFile.GetPkgCache();
- if (unlikely(Cache == NULL))
- return false;
-
- // Find an appropriate file
- pkgCache::VerFileIterator Vf = V.FileList();
- for (; Vf.end() == false; ++Vf)
- if ((Vf.File()->Flags & pkgCache::Flag::NotSource) == 0)
- break;
- if (Vf.end() == true)
- Vf = V.FileList();
-
- // 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());
-
- FileFd PkgF;
- if (PkgF.Open(I.FileName(), FileFd::ReadOnly, FileFd::Extension) == false)
- 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());
- 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
-
- // 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
- cout<<endl;
-
- delete [] Buffer;
- return true;
-}
- /*}}}*/
-struct ExDescFile
-{
- pkgCache::DescFile *Df;
- pkgCache::VerIterator V;
- map_id_t ID;
-};
-
-// Search - Perform a search /*{{{*/
-// ---------------------------------------------------------------------
-/* This searches the package names and package descriptions for a pattern */
-static bool Search(CommandLine &CmdL)
-{
- bool const ShowFull = _config->FindB("APT::Cache::ShowFull",false);
- bool const NamesOnly = _config->FindB("APT::Cache::NamesOnly",false);
- unsigned int const NumPatterns = CmdL.FileSize() -1;
-
- pkgCacheFile CacheFile;
- pkgCache *Cache = CacheFile.GetPkgCache();
- pkgDepCache::Policy *Plcy = CacheFile.GetPolicy();
- if (unlikely(Cache == NULL || Plcy == NULL))
- return false;
-
- // Make sure there is at least one argument
- if (NumPatterns < 1)
- return _error->Error(_("You must give at least one search pattern"));
-
- // Compile the regex pattern
- regex_t *Patterns = new regex_t[NumPatterns];
- memset(Patterns,0,sizeof(*Patterns)*NumPatterns);
- for (unsigned I = 0; I != NumPatterns; I++)
- {
- if (regcomp(&Patterns[I],CmdL.FileList[I+1],REG_EXTENDED | REG_ICASE |
- REG_NOSUB) != 0)
- {
- for (; I != 0; I--)
- regfree(&Patterns[I]);
- return _error->Error("Regex compilation error");
- }
- }
-
- if (_error->PendingError() == true)
- {
- for (unsigned I = 0; I != NumPatterns; I++)
- regfree(&Patterns[I]);
- return false;
- }
-
- size_t const descCount = Cache->HeaderP->GroupCount + 1;
- ExDescFile *DFList = new ExDescFile[descCount];
- memset(DFList,0,sizeof(*DFList) * descCount);
-
- bool *PatternMatch = new bool[descCount * NumPatterns];
- memset(PatternMatch,false,sizeof(*PatternMatch) * descCount * NumPatterns);
-
- // Map versions that we want to write out onto the VerList array.
- for (pkgCache::GrpIterator G = Cache->GrpBegin(); G.end() == false; ++G)
- {
- size_t const PatternOffset = G->ID * NumPatterns;
- size_t unmatched = 0, matched = 0;
- for (unsigned I = 0; I < NumPatterns; ++I)
- {
- if (PatternMatch[PatternOffset + I] == true)
- ++matched;
- else if (regexec(&Patterns[I],G.Name(),0,0,0) == 0)
- PatternMatch[PatternOffset + I] = true;
- else
- ++unmatched;
- }
-
- // 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)
- {
- 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].V = V;
- DFList[G->ID].ID = G->ID;
- }
-
- if (unmatched == NumPatterns)
- continue;
-
- // Include all the packages that provide matching names too
- for (pkgCache::PrvIterator Prv = P.ProvidesList() ; Prv.end() == false; ++Prv)
- {
- pkgCache::VerIterator V = Plcy->GetCandidateVer(Prv.OwnerPkg());
- if (V.end() == true)
- continue;
-
- unsigned long id = Prv.OwnerPkg().Group()->ID;
- 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].V = V;
- 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)
- {
- pkgRecords::Parser &P = Recs.Lookup(pkgCache::DescFileIterator(*Cache,J->Df));
- size_t const PatternOffset = J->ID * NumPatterns;
-
- if (NamesOnly == false)
- {
- string const LongDesc = P.LongDesc();
- for (unsigned I = 0; I < NumPatterns; ++I)
- {
- if (PatternMatch[PatternOffset + I] == true)
- continue;
- else if (regexec(&Patterns[I],LongDesc.c_str(),0,0,0) == 0)
- PatternMatch[PatternOffset + I] = 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)
- DisplayRecord(CacheFile, J->V);
- else
- printf("%s - %s\n",P.Name().c_str(),P.ShortDesc().c_str());
- }
- }
-
- delete [] DFList;
- delete [] PatternMatch;
- for (unsigned I = 0; I != NumPatterns; I++)
- regfree(&Patterns[I]);
- delete [] Patterns;
- if (ferror(stdout))
- return _error->Error("Write to stdout failed");
- return true;
-}
- /*}}}*/
/* ShowAuto - show automatically installed packages (sorted) {{{*/
static bool ShowAuto(CommandLine &)
{
return true;
}
/*}}}*/
-// ShowPackage - Dump the package record to the screen /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-static bool ShowPackage(CommandLine &CmdL)
-{
- pkgCacheFile CacheFile;
- CacheSetHelperVirtuals helper(true, GlobalError::NOTICE);
- 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);
- for (APT::VersionList::const_iterator Ver = verset.begin(); Ver != verset.end(); ++Ver)
- if (DisplayRecord(CacheFile, Ver) == false)
- return false;
-
- if (verset.empty() == true)
- {
- if (helper.virtualPkgs.empty() == true)
- return _error->Error(_("No packages found"));
- else
- _error->Notice(_("No packages found"));
- }
- return true;
-}
- /*}}}*/
// ShowPkgNames - Show package names /*{{{*/
// ---------------------------------------------------------------------
/* This does a prefix match on the first argument */
pkgSrcRecords::Parser *Parse;
unsigned found_this = 0;
while ((Parse = SrcRecs.Find(*I,false)) != 0) {
+ // SrcRecs.Find() will find both binary and source names
+ if (_config->FindB("APT::Cache::Only-Source", false) == true)
+ if (Parse->Package() != *I)
+ continue;
cout << Parse->AsStr() << endl;;
found++;
found_this++;
}
/*}}}*/
// ShowHelp - Show a help screen /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-static bool ShowHelp(CommandLine &)
+static bool ShowHelp(CommandLine &, CommandLine::DispatchWithHelp const * Cmds)
{
ioprintf(cout, "%s %s (%s)\n", PACKAGE, PACKAGE_VERSION, COMMON_ARCH);
if (_config->FindB("version") == true)
return true;
- cout <<
+ std::cout <<
_("Usage: apt-cache [options] command\n"
- " apt-cache [options] showpkg pkg1 [pkg2 ...]\n"
- " apt-cache [options] showsrc pkg1 [pkg2 ...]\n"
+ " apt-cache [options] show pkg1 [pkg2 ...]\n"
"\n"
"apt-cache is a low-level tool used to query information\n"
- "from APT's binary cache files\n"
- "\n"
- "Commands:\n"
- " gencaches - Build both the package and source cache\n"
- " showpkg - Show some general information for a single package\n"
- " showsrc - Show source records\n"
- " stats - Show some basic statistics\n"
- " dump - Show the entire file in a terse form\n"
- " dumpavail - Print an available file to stdout\n"
- " unmet - Show unmet dependencies\n"
- " search - Search the package list for a regex pattern\n"
- " show - Show a readable record for the package\n"
- " depends - Show raw dependency information for a package\n"
- " rdepends - Show reverse dependency information for a package\n"
- " pkgnames - List the names of all packages in the system\n"
- " dotty - Generate package graphs for GraphViz\n"
- " xvcg - Generate package graphs for xvcg\n"
- " policy - Show policy settings\n"
- "\n"
- "Options:\n"
+ "from APT's binary cache files\n")
+ << std::endl
+ << _("Commands:") << std::endl;
+ for (; Cmds->Handler != nullptr; ++Cmds)
+ {
+ if (Cmds->Help == nullptr)
+ continue;
+ std::cout << " " << Cmds->Match << " - " << Cmds->Help << std::endl;
+ }
+
+ std::cout << std::endl
+ << _("Options:\n"
" -h This help text.\n"
" -p=? The package cache.\n"
" -s=? The source cache.\n"
/*}}}*/
int main(int argc,const char *argv[]) /*{{{*/
{
- CommandLine::Dispatch Cmds[] = {{"help",&ShowHelp},
- {"gencaches",&GenCaches},
- {"showsrc",&ShowSrcPackage},
- {"showpkg",&DumpPackage},
- {"stats",&Stats},
- {"dump",&Dump},
- {"dumpavail",&DumpAvail},
- {"unmet",&UnMet},
- {"search",&Search},
- {"depends",&Depends},
- {"rdepends",&RDepends},
- {"dotty",&Dotty},
- {"xvcg",&XVcg},
- {"show",&ShowPackage},
- {"pkgnames",&ShowPkgNames},
- {"showauto",&ShowAuto},
- {"policy",&Policy},
- {"madison",&Madison},
- {0,0}};
-
- std::vector<CommandLine::Args> Args = getCommandArgs("apt-cache", CommandLine::GetCommand(Cmds, argc, argv));
-
- // Set up gettext support
- setlocale(LC_ALL,"");
- textdomain(PACKAGE);
+ InitLocale();
+
+ CommandLine::DispatchWithHelp Cmds[] = {
+ {"gencaches",&GenCaches, nullptr},
+ {"showsrc",&ShowSrcPackage, _("Show source records")},
+ {"showpkg",&DumpPackage, nullptr},
+ {"stats",&Stats, nullptr},
+ {"dump",&Dump, nullptr},
+ {"dumpavail",&DumpAvail, nullptr},
+ {"unmet",&UnMet, nullptr},
+ {"search",&DoSearch, _("Search the package list for a regex pattern")},
+ {"depends",&Depends, _("Show raw dependency information for a package")},
+ {"rdepends",&RDepends, _("Show reverse dependency information for a package")},
+ {"dotty",&Dotty, nullptr},
+ {"xvcg",&XVcg, nullptr},
+ {"show",&ShowPackage, _("Show a readable record for the package")},
+ {"pkgnames",&ShowPkgNames, _("List the names of all packages in the system")},
+ {"showauto",&ShowAuto, nullptr},
+ {"policy",&Policy, _("Show policy settings")},
+ {"madison",&Madison, nullptr},
+ {nullptr, nullptr, nullptr}
+ };
// Parse the command line and initialize the package library
CommandLine CmdL;
- ParseCommandLine(CmdL, Cmds, Args.data(), &_config, &_system, argc, argv, ShowHelp);
+ ParseCommandLine(CmdL, Cmds, "apt-cache", &_config, &_system, argc, argv, ShowHelp);
InitOutput();
if (_config->Exists("APT::Cache::Generate") == true)
_config->Set("pkgCacheFile::Generate", _config->FindB("APT::Cache::Generate", true));
- // Match the operation
- CmdL.DispatchArg(Cmds);
-
- // Print any errors or warnings found during parsing
- bool const Errors = _error->PendingError();
- if (_config->FindI("quiet",0) > 0)
- _error->DumpErrors();
- else
- _error->DumpErrors(GlobalError::DEBUG);
- return Errors == true ? 100 : 0;
+ return DispatchCommandLine(CmdL, Cmds);
}
/*}}}*/
projects / apt.git / blobdiff