// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: apt-cache.cc,v 1.1 1998/07/15 05:56:47 jgg Exp $
+// $Id: apt-cache.cc,v 1.10 1998/10/19 23:45:35 jgg Exp $
/* ######################################################################
- apt-cache - Manages the cache file.
+ apt-cache - Manages the cache files
- This program should eventually handle both low and high level
- manipulation of the cache file. Depending how far things go it
- might get quite a sophisticated UI.
-
- Currently the command line is as follows:
- apt-cache add cache file1:dist:ver file2:dist:ver ...
- ie:
- apt-cache add ./cache Pacakges:hamm:1.0
-
- A usefull feature is 'upgradable' ie
- apt-cache upgradable ./cache
- will list .debs that should be installed to make all packages the latest
- version.
+ apt-cache provides some functions fo manipulating the cache files.
+ It uses the command line interface common to all the APT tools. The
+ only really usefull function right now is dumpavail which is used
+ by the dselect method. Everything else is ment as a debug aide.
Returns 100 on failure, 0 on success.
#include <apt-pkg/error.h>
#include <apt-pkg/pkgcachegen.h>
#include <apt-pkg/deblistparser.h>
+#include <apt-pkg/init.h>
+#include <apt-pkg/progress.h>
+#include <apt-pkg/sourcelist.h>
+#include <apt-pkg/cmndline.h>
#include <iostream.h>
-#include <fstream.h>
-
- /*}}}*/
-
-string CacheFile;
-
-// SplitArg - Split the triple /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-bool SplitArg(const char *Arg,string &File,string &Dist,string Ver)
-{
- const char *Start = Arg;
- const char *I = Arg;
- for (;*I != 0 && *I != ':'; I++);
- if (*I != ':')
- return _error->Error("Malformed argument %s, must be in file:dist:rev form",Arg);
- File = string(Start,I - Start);
-
- I++;
- Start = I;
- for (;*I != 0 && *I != ':'; I++);
- if (*I != ':')
- return _error->Error("Malformed argument %s, must be in file:dist:rev form",Arg);
- Dist = string(Start,I - Start);
-
- I++;
- Start = I;
- for (;*I != 0 && *I != ':'; I++);
- if (I == Start)
- return _error->Error("Malformed argument %s, must be in file:dist:rev form",Arg);
- Ver = string(Start,I - Start);
-
- return true;
-}
+#include <config.h>
/*}}}*/
-// DoAdd - Perform an adding operation /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-bool DoAdd(int argc,char *argv[])
-{
- string FileName;
- string Dist;
- string Ver;
-
- File CacheF(CacheFile,File::WriteEmpty);
- if (_error->PendingError() == true)
- return false;
-
- DynamicMMap Map(CacheF,MMap::Public);
- if (_error->PendingError() == true)
- return false;
-
- pkgCacheGenerator Gen(Map);
- if (_error->PendingError() == true)
- return false;
- for (int I = 0; I != argc; I++)
- {
- if (SplitArg(argv[I],FileName,Dist,Ver) == false)
- return false;
-
- // Do the merge
- File TagF(FileName.c_str(),File::ReadOnly);
- debListParser Parser(TagF);
- if (_error->PendingError() == true)
- return false;
- if (Gen.SelectFile(FileName) == false)
- return false;
-
- if (Gen.MergeList(Parser) == false)
- return false;
- }
-
- return true;
-}
- /*}}}*/
// DumpPackage - Show a dump of a package record /*{{{*/
// ---------------------------------------------------------------------
/* */
-bool DumpPackage(int argc,char *argv[])
-{
- File CacheF(CacheFile,File::ReadOnly);
- if (_error->PendingError() == true)
- return false;
-
- MMap Map(CacheF,MMap::Public | MMap::ReadOnly);
- if (_error->PendingError() == true)
- return false;
-
- pkgCache Cache(Map);
- if (_error->PendingError() == true)
- return false;
-
- for (int I = 0; I != argc; I++)
+bool DumpPackage(pkgCache &Cache,CommandLine &CmdL)
+{
+ for (const char **I = CmdL.FileList + 1; *I != 0; I++)
{
- pkgCache::PkgIterator Pkg = Cache.FindPkg(argv[I]);
+ pkgCache::PkgIterator Pkg = Cache.FindPkg(*I);
if (Pkg.end() == true)
{
- _error->Warning("Unable to locate package %s",argv[0]);
+ _error->Warning("Unable to locate package %s",*I);
continue;
}
for (pkgCache::PrvIterator Prv = Cur.ProvidesList(); Prv.end() != true; Prv++)
cout << Prv.ParentPkg().Name() << " ";
cout << endl;
- }
+ }
+ cout << "Reverse Provides: " << endl;
+ for (pkgCache::PrvIterator Prv = Pkg.ProvidesList(); Prv.end() != true; Prv++)
+ cout << Prv.OwnerPkg().Name() << " " << Prv.OwnerVer().VerStr();
+ cout << endl;
}
return true;
// Stats - Dump some nice statistics /*{{{*/
// ---------------------------------------------------------------------
/* */
-bool Stats(const char *FileName)
+bool Stats(pkgCache &Cache)
{
- File CacheF(FileName,File::ReadOnly);
- if (_error->PendingError() == true)
- return false;
-
- MMap Map(CacheF,MMap::Public | MMap::ReadOnly);
- if (_error->PendingError() == true)
- return false;
-
- pkgCache Cache(Map);
- if (_error->PendingError() == true)
- return false;
-
cout << "Total Package Names : " << Cache.Head().PackageCount << endl;
pkgCache::PkgIterator I = Cache.PkgBegin();
// Dump - show everything /*{{{*/
// ---------------------------------------------------------------------
/* */
-bool Dump()
+bool Dump(pkgCache &Cache)
{
- File CacheF(CacheFile,File::ReadOnly);
- if (_error->PendingError() == true)
- return false;
-
- MMap Map(CacheF,MMap::Public | MMap::ReadOnly);
- if (_error->PendingError() == true)
- return false;
-
- pkgCache Cache(Map);
- if (_error->PendingError() == true)
- return false;
-
for (pkgCache::PkgIterator P = Cache.PkgBegin(); P.end() == false; P++)
{
cout << "Package: " << P.Name() << endl;
// DumpAvail - Print out the available list /*{{{*/
// ---------------------------------------------------------------------
/* This is needed to make dpkg --merge happy */
-bool DumpAvail()
+bool DumpAvail(pkgCache &Cache)
{
-#if 0
- pkgCache Cache(CacheFile,true,true);
- if (_error->PendingError() == true)
- return false;
-
- pkgControlCache CCache(Cache);
- if (_error->PendingError() == true)
- return false;
+ unsigned char *Buffer = new unsigned char[Cache.HeaderP->MaxVerFileSize];
- vector<string> Lines;
- Lines.reserve(30);
-
- pkgCache::PkgIterator I = Cache.PkgBegin();
- for (;I.end() != true; I++)
+ for (pkgCache::PkgFileIterator I = Cache.FileBegin(); I.end() == false; I++)
{
- if (I->VersionList == 0)
+ if ((I->Flags & pkgCache::Flag::NotSource) != 0)
continue;
- pkgSPkgCtrlInfo Inf = CCache[I.VersionList()];
- if (Inf.isNull() == true)
- return _error->Error("Couldn't locate info record");
+ if (I.IsOk() == false)
+ {
+ delete [] Buffer;
+ return _error->Error("Package file %s is out of sync.",I.FileName());
+ }
- // Iterate over each element
- pkgPkgCtrlInfo::const_iterator Elm = Inf->begin();
- for (; Elm != Inf->end(); Elm++)
+ FileFd PkgF(I.FileName(),FileFd::ReadOnly);
+ if (_error->PendingError() == true)
{
- // Write the tag: value
- cout << (*Elm)->Tag() << ": " << (*Elm)->Value() << endl;
-
- // Write the multiline
- (*Elm)->GetLines(Lines);
- for (vector<string>::iterator j = Lines.begin(); j != Lines.end(); j++)
+ delete [] Buffer;
+ return false;
+ }
+
+ /* Write all of the records from this package file, we search the entire
+ structure to find them */
+ for (pkgCache::PkgIterator P = Cache.PkgBegin(); P.end() == false; P++)
+ {
+ for (pkgCache::VerIterator V = P.VersionList(); V.end() == false; V++)
{
- if ((*j).length() == 0)
- cout << " ." << endl;
- else
- cout << " " << *j << endl;
+ if (V->FileList == 0)
+ continue;
+ if (V.FileList().File() != I)
+ continue;
+
+ // Read the record and then write it out again.
+ if (PkgF.Seek(V.FileList()->Offset) == false ||
+ PkgF.Read(Buffer,V.FileList()->Size) == false ||
+ write(STDOUT_FILENO,Buffer,V.FileList()->Size) != V.FileList()->Size)
+ {
+ delete [] Buffer;
+ return false;
+ }
}
-
- Lines.erase(Lines.begin(),Lines.end());
}
+ }
+
+ return true;
+}
+ /*}}}*/
+// DoAdd - Perform an adding operation /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool DoAdd(CommandLine &CmdL)
+{
+ // Make sure there is at least one argument
+ if (CmdL.FileSize() <= 1)
+ return _error->Error("You must give at least one file name");
+
+ // Open the cache
+ FileFd CacheF(_config->FindFile("Dir::Cache::srcpkgcache"),FileFd::WriteAny);
+ if (_error->PendingError() == true)
+ return false;
+
+ DynamicMMap Map(CacheF,MMap::Public);
+ if (_error->PendingError() == true)
+ return false;
+
+ OpTextProgress Progress(*_config);
+ pkgCacheGenerator Gen(Map,Progress);
+ if (_error->PendingError() == true)
+ return false;
+
+ unsigned long Length = CmdL.FileSize() - 1;
+ for (const char **I = CmdL.FileList + 1; *I != 0; I++)
+ {
+ Progress.OverallProgress(I - CmdL.FileList,Length,1,"Generating cache");
- cout << endl;
+ // Do the merge
+ FileFd TagF(*I,FileFd::ReadOnly);
+ debListParser Parser(TagF);
+ if (_error->PendingError() == true)
+ return _error->Error("Problem opening %s",*I);
+
+ if (Gen.SelectFile(*I) == false)
+ return _error->Error("Problem with SelectFile");
+
+ if (Gen.MergeList(Parser) == false)
+ return _error->Error("Problem with MergeList");
}
-#endif
+
+ Progress.Done();
+ Stats(Gen.GetCache());
+
return true;
}
/*}}}*/
+// GenCaches - Call the main cache generator /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool GenCaches()
+{
+ OpTextProgress Progress(*_config);
+
+ pkgSourceList List;
+ List.ReadMainList();
+ return pkgMakeStatusCache(List,Progress);
+}
+ /*}}}*/
+// ShowHelp - Show a help screen /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+int ShowHelp()
+{
+ cout << PACKAGE << ' ' << VERSION << " for " << ARCHITECTURE <<
+ " compiled on " << __DATE__ << " " << __TIME__ << endl;
+
+ cout << "Usage: apt-cache [options] command" << endl;
+ cout << " apt-cache [options] add file1 [file1 ...]" << endl;
+ cout << " apt-cache [options] showpkg pkg1 [pkg2 ...]" << endl;
+ cout << endl;
+ cout << "apt-cache is a low-level tool used to manipulate APT's binary" << endl;
+ cout << "cache files stored in " << _config->FindFile("Dir::Cache") << endl;
+ cout << "It is not ment for ordinary use only as a debug aide." << endl;
+ cout << endl;
+ cout << "Commands:" << endl;
+ cout << " add - Add an package file to the source cache" << endl;
+ cout << " gencaches - Build both the package and source cache" << endl;
+ cout << " showpkg - Show some general information for a single package" << endl;
+ cout << " stats - Show some basic statistics" << endl;
+ cout << " dump - Show the entire file in a terse form" << endl;
+ cout << " dumpavail - Print an available file to stdout" << endl;
+ cout << endl;
+ cout << "Options:" << endl;
+ cout << " -h This help text." << endl;
+ cout << " -p=? The package cache. [" << _config->FindFile("Dir::Cache::pkgcache") << ']' << endl;
+ cout << " -s=? The source cache. [" << _config->FindFile("Dir::Cache::srcpkgcache") << ']' << endl;
+ cout << " -q Disable progress indicator. " << endl;
+ cout << " -c=? Read this configuration file" << endl;
+ cout << " -o=? Set an arbitary configuration option, ie -o dir::cache=/tmp" << endl;
+ cout << "See the apt-cache(8) and apt.conf(8) manual pages for more information." << endl;
+ return 100;
+}
+ /*}}}*/
+// CacheInitialize - Initialize things for apt-cache /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void CacheInitialize()
+{
+ _config->Set("quiet",0);
+ _config->Set("help",false);
+}
+ /*}}}*/
-int main(int argc, char *argv[])
+int main(int argc,const char *argv[])
{
- // Check arguments.
- if (argc < 3)
+ CommandLine::Args Args[] = {
+ {'h',"help","help",0},
+ {'p',"pkg-cache","Dir::Cache::pkgcache",CommandLine::HasArg},
+ {'s',"src-cache","Dir::Cache::srcpkgcache",CommandLine::HasArg},
+ {'q',"quiet","quiet",CommandLine::IntLevel},
+ {'c',"config-file",0,CommandLine::ConfigFile},
+ {'o',"option",0,CommandLine::ArbItem},
+ {0,0,0,0}};
+
+ CacheInitialize();
+
+ // Parse the command line and initialize the package library
+ CommandLine CmdL(Args,_config);
+ if (pkgInitialize(*_config) == false ||
+ CmdL.Parse(argc,argv) == false)
{
- cerr << "Usage is apt-cache add cache file1:dist:ver file2:dist:ver ..." << endl;
+ _error->DumpErrors();
return 100;
}
+
+ // See if the help should be shown
+ if (_config->FindB("help") == true ||
+ CmdL.FileSize() == 0)
+ return ShowHelp();
while (1)
{
- if (strcmp(argv[1],"add") == 0)
+ if (strcmp(CmdL.FileList[0],"add") == 0)
+ {
+ DoAdd(CmdL);
+ break;
+ }
+
+ if (strcmp(CmdL.FileList[0],"gencaches") == 0)
{
- CacheFile = argv[2];
- if (DoAdd(argc - 3,argv + 3) == true)
- Stats(argv[2]);
+ GenCaches();
break;
}
+
+ // Open the cache file
+ FileFd CacheF(_config->FindFile("Dir::Cache::pkgcache"),FileFd::ReadOnly);
+ if (_error->PendingError() == true)
+ break;
+
+ MMap Map(CacheF,MMap::Public | MMap::ReadOnly);
+ if (_error->PendingError() == true)
+ break;
+
+ pkgCache Cache(Map);
+ if (_error->PendingError() == true)
+ break;
- if (strcmp(argv[1],"showpkg") == 0)
+ if (strcmp(CmdL.FileList[0],"showpkg") == 0)
{
- CacheFile = argv[2];
- DumpPackage(argc - 3,argv + 3);
+ DumpPackage(Cache,CmdL);
break;
}
- if (strcmp(argv[1],"stats") == 0)
+ if (strcmp(CmdL.FileList[0],"stats") == 0)
{
- Stats(argv[2]);
+ Stats(Cache);
break;
}
- if (strcmp(argv[1],"dump") == 0)
+ if (strcmp(CmdL.FileList[0],"dump") == 0)
{
- CacheFile = argv[2];
- Dump();
+ Dump(Cache);
break;
}
- if (strcmp(argv[1],"dumpavail") == 0)
+ if (strcmp(CmdL.FileList[0],"dumpavail") == 0)
{
- CacheFile = argv[2];
- DumpAvail();
+ DumpAvail(Cache);
break;
}
-
- _error->Error("Invalid operation %s", argv[1]);
+
+ _error->Error("Invalid operation %s", CmdL.FileList[0]);
break;
}
// Print any errors or warnings found during parsing
if (_error->empty() == false)
{
+ bool Errors = _error->PendingError();
_error->DumpErrors();
- return 100;
+ return Errors == true?100:0;
}
return 0;
projects / apt.git / blobdiff