[apt.git] / cmdline / apt-extracttemplates.cc

// -*- mode: cpp; mode: fold -*-
// Description								/*{{{*/
// $Id: apt-extracttemplates.cc,v 1.15 2003/07/26 00:00:11 mdz Exp $
/* ######################################################################
   
   APT Extract Templates - Program to extract debconf config and template
                           files

   This is a simple program to extract config and template information 
   from Debian packages. It can be used to speed up the preconfiguration
   process for debconf-enabled packages
   
   ##################################################################### */
									/*}}}*/
// Include Files							/*{{{*/
#include <apt-pkg/init.h>
#include <apt-pkg/cmndline.h>
#include <apt-pkg/pkgcache.h>
#include <apt-pkg/configuration.h>
#include <apt-pkg/progress.h>
#include <apt-pkg/sourcelist.h>
#include <apt-pkg/pkgcachegen.h>
#include <apt-pkg/version.h>
#include <apt-pkg/tagfile.h>
#include <apt-pkg/extracttar.h>
#include <apt-pkg/arfile.h>
#include <apt-pkg/deblistparser.h>
#include <apt-pkg/error.h>
#include <apt-pkg/strutl.h>
#include <apt-pkg/fileutl.h>
	
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <fstream>

#include <locale.h>
#include <config.h>
#include <apti18n.h>
#include "apt-extracttemplates.h"
									/*}}}*/

using namespace std;

#define TMPDIR		"/tmp"

pkgCache *DebFile::Cache = 0;

// DebFile::DebFile - Construct the DebFile object			/*{{{*/
// ---------------------------------------------------------------------
/* */
DebFile::DebFile(const char *debfile)
	: File(debfile, FileFd::ReadOnly), Control(0), DepOp(0), 
          PreDepOp(0), Config(0), Template(0), Which(None)
{
}
									/*}}}*/
// DebFile::~DebFile - Destruct the DebFile object			/*{{{*/
// ---------------------------------------------------------------------
/* */
DebFile::~DebFile()
{
	delete [] Control;
	delete [] Config;
	delete [] Template;
}
									/*}}}*/
// DebFile::GetInstalledVer - Find out the installed version of a pkg	/*{{{*/
// ---------------------------------------------------------------------
/* */
string DebFile::GetInstalledVer(const string &package)
{
	pkgCache::PkgIterator Pkg = Cache->FindPkg(package);
	if (Pkg.end() == false) 
	{
		pkgCache::VerIterator V = Pkg.CurrentVer();
		if (V.end() == false)
		{
			return V.VerStr();
		}
	}

	return string();
}
									/*}}}*/
// DebFile::Go - Start extracting a debian package			/*{{{*/
// ---------------------------------------------------------------------
/* */
bool DebFile::Go()
{
	ARArchive AR(File);
	if (_error->PendingError() == true)
		return false;
		
	const ARArchive::Member *Member = AR.FindMember("control.tar.gz");
	if (Member == 0)
		return _error->Error(_("%s not a valid DEB package."),File.Name().c_str());
	
	if (File.Seek(Member->Start) == false)
		return false;
	ExtractTar Tar(File, Member->Size,"gzip");
	return Tar.Go(*this);
}
									/*}}}*/
// DebFile::DoItem examine element in package and mark			/*{{{*/
// ---------------------------------------------------------------------
/* */
bool DebFile::DoItem(Item &I, int &Fd)
{
	if (strcmp(I.Name, "control") == 0)
	{
		delete [] Control;
		Control = new char[I.Size+1];
		Control[I.Size] = 0;
		Which = IsControl;
		ControlLen = I.Size;
		// make it call the Process method below. this is so evil
		Fd = -2;
	}
	else if (strcmp(I.Name, "config") == 0)
	{
		delete [] Config;
		Config = new char[I.Size+1];
		Config[I.Size] = 0;
		Which = IsConfig;
		Fd = -2; 
	} 
	else if (strcmp(I.Name, "templates") == 0)
	{
		delete [] Template;
		Template = new char[I.Size+1];
		Template[I.Size] = 0;
		Which = IsTemplate;
		Fd = -2;
	} 
	else 
	{
		// Ignore it
		Fd = -1;
	}
	return true;
}
									/*}}}*/
// DebFile::Process examine element in package and copy			/*{{{*/
// ---------------------------------------------------------------------
/* */
bool DebFile::Process(Item &I, const unsigned char *data, 
		unsigned long size, unsigned long pos)
{
	switch (Which)
	{
	case IsControl:
		memcpy(Control + pos, data, size);
		break;
	case IsConfig:
		memcpy(Config + pos, data, size);
		break;
	case IsTemplate:
		memcpy(Template + pos, data, size);
		break;
	default: /* throw it away */ ;
	}
	return true;
}
									/*}}}*/
// DebFile::ParseInfo - Parse control file for dependency info		/*{{{*/
// ---------------------------------------------------------------------
/* */
bool DebFile::ParseInfo()
{
	if (Control == NULL) return false;
	
	pkgTagSection Section;
	Section.Scan(Control, ControlLen);

	Package = Section.FindS("Package");
	Version = GetInstalledVer(Package);

	const char *Start, *Stop;
	if (Section.Find("Depends", Start, Stop) == true)
	{
		while (1)
		{
			string P, V;
			unsigned int Op;
			Start = debListParser::ParseDepends(Start, Stop, P, V, Op);
			if (Start == 0) return false;
			if (P == "debconf")
			{
				DepVer = V;
				DepOp = Op;
				break;
			}
			if (Start == Stop) break;
		}
	}
	
	if (Section.Find("Pre-Depends", Start, Stop) == true)
	{
		while (1)
		{
			string P, V;
			unsigned int Op;
			Start = debListParser::ParseDepends(Start, Stop, P, V, Op);
			if (Start == 0) return false;
			if (P == "debconf")
			{
				PreDepVer = V;
				PreDepOp = Op;
				break;
			}
			if (Start == Stop) break;
		}
	}
	
	return true;
}
									/*}}}*/
// ShowHelp - show a short help text					/*{{{*/
// ---------------------------------------------------------------------
/* */
int ShowHelp(void)
{
   	ioprintf(cout,_("%s %s for %s %s compiled on %s %s\n"),PACKAGE,VERSION,
	    COMMON_OS,COMMON_CPU,__DATE__,__TIME__);

	if (_config->FindB("version") == true) 
		return 0;

	cout << 
		_("Usage: apt-extracttemplates file1 [file2 ...]\n"
		"\n"
		"apt-extracttemplates is a tool to extract config and template info\n"
		"from debian packages\n"
		"\n"
		"Options:\n"
	        "  -h   This help text\n"
		"  -t   Set the temp dir\n"
		"  -c=? Read this configuration file\n"
		"  -o=? Set an arbitrary configuration option, eg -o dir::cache=/tmp\n");
	return 0;
}
									/*}}}*/
// WriteFile - write the contents of the passed string to a file	/*{{{*/
// ---------------------------------------------------------------------
/* */
string WriteFile(const char *package, const char *prefix, const char *data)
{
	char fn[512];
	static int i;
        char *tempdir = NULL;

        tempdir = getenv("TMPDIR");
        if (tempdir == NULL)
             tempdir = TMPDIR;

	snprintf(fn, sizeof(fn), "%s/%s.%s.%u%d",
                 _config->Find("APT::ExtractTemplates::TempDir", tempdir).c_str(),
                 package, prefix, getpid(), i++);
	FileFd f;
	if (data == NULL)
		data = "";

	if (!f.Open(fn, FileFd::WriteTemp, 0600))
	{
		_error->Errno("ofstream::ofstream",_("Unable to write to %s"),fn);
		return string();
	}

	f.Write(data, strlen(data));
	f.Close();
	return fn;
}
									/*}}}*/
// WriteConfig - write out the config data from a debian package file	/*{{{*/
// ---------------------------------------------------------------------
/* */
void WriteConfig(const DebFile &file)
{
	string templatefile = WriteFile(file.Package.c_str(), "template", file.Template);
	string configscript = WriteFile(file.Package.c_str(), "config", file.Config);

	if (templatefile.empty() == true || configscript.empty() == true)
		return;
	cout << file.Package << " " << file.Version << " " 
	     << templatefile << " " << configscript << endl;
}
									/*}}}*/
// InitCache - initialize the package cache				/*{{{*/
// ---------------------------------------------------------------------
/* */
bool Go(CommandLine &CmdL)
{	
	// Initialize the apt cache
	MMap *Map = 0;
	pkgSourceList List;
	List.ReadMainList();
	OpProgress Prog;
	pkgMakeStatusCache(List,Prog,&Map,true);
	if (Map == 0)
	   return false;
	DebFile::Cache = new pkgCache(Map);
	if (_error->PendingError() == true)
		return false;

	// Find out what version of debconf is currently installed
	string debconfver = DebFile::GetInstalledVer("debconf");
	if (debconfver.empty() == true)
		return _error->Error( _("Cannot get debconf version. Is debconf installed?"));

	// Process each package passsed in
	for (unsigned int I = 0; I != CmdL.FileSize(); I++)
	{
		// Will pick up the errors later..
		DebFile file(CmdL.FileList[I]);
		if (file.Go() == false)
		{
		        _error->Error("Prior errors apply to %s",CmdL.FileList[I]);
			continue;
		}

		// Does the package have templates?
		if (file.Template != 0 && file.ParseInfo() == true)
		{
			// Check to make sure debconf dependencies are
			// satisfied
			// cout << "Check " << file.DepVer << ',' << debconfver << endl;
			if (file.DepVer != "" &&
			    DebFile::Cache->VS->CheckDep(debconfver.c_str(),
					file.DepOp,file.DepVer.c_str()
							 ) == false)
				continue;
			if (file.PreDepVer != "" &&
			    DebFile::Cache->VS->CheckDep(debconfver.c_str(),
			                file.PreDepOp,file.PreDepVer.c_str()
							 ) == false) 
				continue;

			WriteConfig(file);
		}
	}
	

	delete Map;
	delete DebFile::Cache;
	
	return !_error->PendingError();
}
									/*}}}*/

int main(int argc, const char **argv)
{
	CommandLine::Args Args[] = {
		{'h',"help","help",0},
		{'v',"version","version",0},
		{'t',"tempdir","APT::ExtractTemplates::TempDir",CommandLine::HasArg},
		{'c',"config-file",0,CommandLine::ConfigFile},
		{'o',"option",0,CommandLine::ArbItem},
		{0,0,0,0}};

	// Set up gettext support
	setlocale(LC_ALL,"");
	textdomain(PACKAGE);

	// Parse the command line and initialize the package library
	CommandLine CmdL(Args,_config);
	if (pkgInitConfig(*_config) == false ||
	    CmdL.Parse(argc,argv) == false ||
	    pkgInitSystem(*_config,_system) == false)
	{
		_error->DumpErrors();
		return 100;
	}
	
	// See if the help should be shown
	if (_config->FindB("help") == true ||
	    CmdL.FileSize() == 0)
		return ShowHelp();
	
	Go(CmdL);

	// Print any errors or warnings found during operation
	if (_error->empty() == false)
	{
		// This goes to stderr..
		bool Errors = _error->PendingError();
		_error->DumpErrors();
		return Errors == true?100:0;
	}
	
	return 0;
}
Commit	Line	Data
234edfd0 AL	1	// -- mode: cpp; mode: fold --
234edfd0 AL	2	// Description /{{{/
8eb5af51	3	// $Id: apt-extracttemplates.cc,v 1.15 2003/07/26 00:00:11 mdz Exp $
234edfd0 AL	4	/* ######################################################################
	5
	6	APT Extract Templates - Program to extract debconf config and template
	7	files
3fc8f685	8
234edfd0 AL	9	This is a simple program to extract config and template information
	10	from Debian packages. It can be used to speed up the preconfiguration
	11	process for debconf-enabled packages
	12
	13	##################################################################### */
	14	/}}}/
	15	// Include Files /{{{/
3fc8f685	16	#include <apt-pkg/init.h>
5cbf1b49	17	#include <apt-pkg/cmndline.h>
3fc8f685 AL	18	#include <apt-pkg/pkgcache.h>
	19	#include <apt-pkg/configuration.h>
	20	#include <apt-pkg/progress.h>
	21	#include <apt-pkg/sourcelist.h>
	22	#include <apt-pkg/pkgcachegen.h>
	23	#include <apt-pkg/version.h>
234edfd0 AL	24	#include <apt-pkg/tagfile.h>
	25	#include <apt-pkg/extracttar.h>
	26	#include <apt-pkg/arfile.h>
	27	#include <apt-pkg/deblistparser.h>
	28	#include <apt-pkg/error.h>
	29	#include <apt-pkg/strutl.h>
4decd43c	30	#include <apt-pkg/fileutl.h>
3fc8f685	31
234edfd0 AL	32	#include <stdio.h>
	33	#include <string.h>
	34	#include <stdlib.h>
	35	#include <unistd.h>
7e726255	36	#include <fstream>
234edfd0	37
233c2b66	38	#include <locale.h>
234edfd0 AL	39	#include <config.h>
	40	#include <apti18n.h>
	41	#include "apt-extracttemplates.h"
7e726255	42	/}}}/
234edfd0	43
8f312f45 AL	44	using namespace std;
8f312f45 AL	45
4decd43c	46	#define TMPDIR "/tmp"
3fc8f685	47
234edfd0 AL	48	pkgCache *DebFile::Cache = 0;
	49
	50	// DebFile::DebFile - Construct the DebFile object /{{{/
	51	// ---------------------------------------------------------------------
	52	/* */
	53	DebFile::DebFile(const char *debfile)
7e726255 AL	54	: File(debfile, FileFd::ReadOnly), Control(0), DepOp(0),
7e726255 AL	55	PreDepOp(0), Config(0), Template(0), Which(None)
3fc8f685	56	{
3fc8f685	57	}
234edfd0 AL	58	/}}}/
	59	// DebFile::~DebFile - Destruct the DebFile object /{{{/
	60	// ---------------------------------------------------------------------
	61	/* */
	62	DebFile::~DebFile()
	63	{
	64	delete [] Control;
	65	delete [] Config;
	66	delete [] Template;
	67	}
	68	/}}}/
	69	// DebFile::GetInstalledVer - Find out the installed version of a pkg /{{{/
	70	// ---------------------------------------------------------------------
	71	/* */
7e726255	72	string DebFile::GetInstalledVer(const string &package)
234edfd0	73	{
234edfd0 AL	74	pkgCache::PkgIterator Pkg = Cache->FindPkg(package);
	75	if (Pkg.end() == false)
	76	{
	77	pkgCache::VerIterator V = Pkg.CurrentVer();
7e726255	78	if (V.end() == false)
234edfd0	79	{
7e726255	80	return V.VerStr();
234edfd0 AL	81	}
234edfd0 AL	82	}
3fc8f685	83
7e726255	84	return string();
234edfd0 AL	85	}
	86	/}}}/
	87	// DebFile::Go - Start extracting a debian package /{{{/
	88	// ---------------------------------------------------------------------
	89	/* */
	90	bool DebFile::Go()
	91	{
	92	ARArchive AR(File);
7e726255 AL	93	if (_error->PendingError() == true)
	94	return false;
	95
234edfd0 AL	96	const ARArchive::Member *Member = AR.FindMember("control.tar.gz");
234edfd0 AL	97	if (Member == 0)
7e726255	98	return _error->Error(_("%s not a valid DEB package."),File.Name().c_str());
234edfd0 AL	99
234edfd0 AL	100	if (File.Seek(Member->Start) == false)
234edfd0	101	return false;
b21c0438	102	ExtractTar Tar(File, Member->Size,"gzip");
234edfd0 AL	103	return Tar.Go(*this);
	104	}
	105	/}}}/
	106	// DebFile::DoItem examine element in package and mark /{{{/
	107	// ---------------------------------------------------------------------
	108	/* */
	109	bool DebFile::DoItem(Item &I, int &Fd)
	110	{
	111	if (strcmp(I.Name, "control") == 0)
	112	{
	113	delete [] Control;
	114	Control = new char[I.Size+1];
	115	Control[I.Size] = 0;
	116	Which = IsControl;
	117	ControlLen = I.Size;
	118	// make it call the Process method below. this is so evil
	119	Fd = -2;
	120	}
	121	else if (strcmp(I.Name, "config") == 0)
	122	{
	123	delete [] Config;
	124	Config = new char[I.Size+1];
	125	Config[I.Size] = 0;
	126	Which = IsConfig;
	127	Fd = -2;
	128	}
	129	else if (strcmp(I.Name, "templates") == 0)
	130	{
	131	delete [] Template;
	132	Template = new char[I.Size+1];
	133	Template[I.Size] = 0;
	134	Which = IsTemplate;
	135	Fd = -2;
	136	}
	137	else
	138	{
7e726255	139	// Ignore it
234edfd0 AL	140	Fd = -1;
	141	}
	142	return true;
	143	}
	144	/}}}/
	145	// DebFile::Process examine element in package and copy /{{{/
	146	// ---------------------------------------------------------------------
	147	/* */
	148	bool DebFile::Process(Item &I, const unsigned char *data,
	149	unsigned long size, unsigned long pos)
	150	{
	151	switch (Which)
	152	{
	153	case IsControl:
	154	memcpy(Control + pos, data, size);
	155	break;
	156	case IsConfig:
	157	memcpy(Config + pos, data, size);
	158	break;
	159	case IsTemplate:
	160	memcpy(Template + pos, data, size);
	161	break;
	162	default: /* throw it away */ ;
	163	}
	164	return true;
	165	}
	166	/}}}/
	167	// DebFile::ParseInfo - Parse control file for dependency info /{{{/
	168	// ---------------------------------------------------------------------
	169	/* */
	170	bool DebFile::ParseInfo()
	171	{
	172	if (Control == NULL) return false;
7e726255	173
234edfd0 AL	174	pkgTagSection Section;
	175	Section.Scan(Control, ControlLen);
	176
	177	Package = Section.FindS("Package");
	178	Version = GetInstalledVer(Package);
	179
	180	const char Start, Stop;
	181	if (Section.Find("Depends", Start, Stop) == true)
	182	{
	183	while (1)
	184	{
	185	string P, V;
	186	unsigned int Op;
	187	Start = debListParser::ParseDepends(Start, Stop, P, V, Op);
	188	if (Start == 0) return false;
	189	if (P == "debconf")
	190	{
	191	DepVer = V;
	192	DepOp = Op;
	193	break;
	194	}
	195	if (Start == Stop) break;
	196	}
	197	}
	198
	199	if (Section.Find("Pre-Depends", Start, Stop) == true)
	200	{
	201	while (1)
	202	{
	203	string P, V;
	204	unsigned int Op;
	205	Start = debListParser::ParseDepends(Start, Stop, P, V, Op);
	206	if (Start == 0) return false;
	207	if (P == "debconf")
	208	{
	209	PreDepVer = V;
	210	PreDepOp = Op;
	211	break;
	212	}
	213	if (Start == Stop) break;
	214	}
	215	}
	216
	217	return true;
	218	}
	219	/}}}/
	220	// ShowHelp - show a short help text /{{{/
	221	// ---------------------------------------------------------------------
	222	/* */
7e726255	223	int ShowHelp(void)
234edfd0 AL	224	{
	225	ioprintf(cout,_("%s %s for %s %s compiled on %s %s\n"),PACKAGE,VERSION,
	226	COMMON_OS,COMMON_CPU,__DATE__,__TIME__);
	227
7e726255 AL	228	if (_config->FindB("version") == true)
7e726255 AL	229	return 0;
5cbf1b49	230
7e726255	231	cout <<
234edfd0 AL	232	_("Usage: apt-extracttemplates file1 [file2 ...]\n"
	233	"\n"
	234	"apt-extracttemplates is a tool to extract config and template info\n"
7e726255 AL	235	"from debian packages\n"
	236	"\n"
	237	"Options:\n"
	238	" -h This help text\n"
	239	" -t Set the temp dir\n"
	240	" -c=? Read this configuration file\n"
a2884e32	241	" -o=? Set an arbitrary configuration option, eg -o dir::cache=/tmp\n");
7e726255	242	return 0;
234edfd0 AL	243	}
	244	/}}}/
	245	// WriteFile - write the contents of the passed string to a file /{{{/
	246	// ---------------------------------------------------------------------
	247	/* */
259ca596	248	string WriteFile(const char package, const char prefix, const char *data)
3fc8f685 AL	249	{
	250	char fn[512];
	251	static int i;
8eb5af51 AL	252	char *tempdir = NULL;
	253
	254	tempdir = getenv("TMPDIR");
	255	if (tempdir == NULL)
	256	tempdir = TMPDIR;
	257
	258	snprintf(fn, sizeof(fn), "%s/%s.%s.%u%d",
	259	_config->Find("APT::ExtractTemplates::TempDir", tempdir).c_str(),
	260	package, prefix, getpid(), i++);
4decd43c AL	261	FileFd f;
	262	if (data == NULL)
	263	data = "";
3fc8f685	264
4decd43c	265	if (!f.Open(fn, FileFd::WriteTemp, 0600))
7e726255 AL	266	{
	267	_error->Errno("ofstream::ofstream",_("Unable to write to %s"),fn);
	268	return string();
	269	}
	270
4decd43c AL	271	f.Write(data, strlen(data));
4decd43c AL	272	f.Close();
7e726255	273	return fn;
3fc8f685	274	}
234edfd0 AL	275	/}}}/
	276	// WriteConfig - write out the config data from a debian package file /{{{/
	277	// ---------------------------------------------------------------------
	278	/* */
	279	void WriteConfig(const DebFile &file)
3fc8f685	280	{
a5eef4f7 AL	281	string templatefile = WriteFile(file.Package.c_str(), "template", file.Template);
a5eef4f7 AL	282	string configscript = WriteFile(file.Package.c_str(), "config", file.Config);
3fc8f685	283
7e726255	284	if (templatefile.empty() == true \|\| configscript.empty() == true)
3fc8f685	285	return;
234edfd0 AL	286	cout << file.Package << " " << file.Version << " "
234edfd0 AL	287	<< templatefile << " " << configscript << endl;
234edfd0 AL	288	}
	289	/}}}/
	290	// InitCache - initialize the package cache /{{{/
	291	// ---------------------------------------------------------------------
	292	/* */
7e726255 AL	293	bool Go(CommandLine &CmdL)
7e726255 AL	294	{
3fc8f685	295	// Initialize the apt cache
7e726255	296	MMap *Map = 0;
3fc8f685 AL	297	pkgSourceList List;
	298	List.ReadMainList();
	299	OpProgress Prog;
	300	pkgMakeStatusCache(List,Prog,&Map,true);
08945efa AL	301	if (Map == 0)
08945efa AL	302	return false;
7e726255 AL	303	DebFile::Cache = new pkgCache(Map);
	304	if (_error->PendingError() == true)
	305	return false;
5cbf1b49	306
234edfd0	307	// Find out what version of debconf is currently installed
7e726255 AL	308	string debconfver = DebFile::GetInstalledVer("debconf");
	309	if (debconfver.empty() == true)
	310	return _error->Error( _("Cannot get debconf version. Is debconf installed?"));
3fc8f685	311
234edfd0	312	// Process each package passsed in
5cbf1b49	313	for (unsigned int I = 0; I != CmdL.FileSize(); I++)
3fc8f685	314	{
7e726255	315	// Will pick up the errors later..
5cbf1b49	316	DebFile file(CmdL.FileList[I]);
7e726255	317	if (file.Go() == false)
08945efa AL	318	{
	319	_error->Error("Prior errors apply to %s",CmdL.FileList[I]);
	320	continue;
	321	}
	322
234edfd0	323	// Does the package have templates?
3fc8f685 AL	324	if (file.Template != 0 && file.ParseInfo() == true)
3fc8f685 AL	325	{
234edfd0 AL	326	// Check to make sure debconf dependencies are
234edfd0 AL	327	// satisfied
f034a64a	328	// cout << "Check " << file.DepVer << ',' << debconfver << endl;
234edfd0	329	if (file.DepVer != "" &&
418349f0 AL	330	DebFile::Cache->VS->CheckDep(debconfver.c_str(),
	331	file.DepOp,file.DepVer.c_str()
	332	) == false)
3fc8f685	333	continue;
234edfd0	334	if (file.PreDepVer != "" &&
418349f0 AL	335	DebFile::Cache->VS->CheckDep(debconfver.c_str(),
	336	file.PreDepOp,file.PreDepVer.c_str()
	337	) == false)
3fc8f685 AL	338	continue;
3fc8f685 AL	339
234edfd0	340	WriteConfig(file);
3fc8f685 AL	341	}
	342	}
	343
	344
	345	delete Map;
	346	delete DebFile::Cache;
7e726255 AL	347
	348	return !_error->PendingError();
	349	}
	350	/}}}/
	351
	352	int main(int argc, const char **argv)
	353	{
	354	CommandLine::Args Args[] = {
	355	{'h',"help","help",0},
	356	{'v',"version","version",0},
	357	{'t',"tempdir","APT::ExtractTemplates::TempDir",CommandLine::HasArg},
	358	{'c',"config-file",0,CommandLine::ConfigFile},
	359	{'o',"option",0,CommandLine::ArbItem},
	360	{0,0,0,0}};
67111687 AL	361
	362	// Set up gettext support
	363	setlocale(LC_ALL,"");
	364	textdomain(PACKAGE);
	365
7e726255 AL	366	// Parse the command line and initialize the package library
	367	CommandLine CmdL(Args,_config);
	368	if (pkgInitConfig(*_config) == false \|\|
	369	CmdL.Parse(argc,argv) == false \|\|
	370	pkgInitSystem(*_config,_system) == false)
	371	{
	372	_error->DumpErrors();
	373	return 100;
	374	}
	375
	376	// See if the help should be shown
	377	if (_config->FindB("help") == true \|\|
	378	CmdL.FileSize() == 0)
	379	return ShowHelp();
	380
	381	Go(CmdL);
3fc8f685	382
7e726255 AL	383	// Print any errors or warnings found during operation
	384	if (_error->empty() == false)
	385	{
	386	// This goes to stderr..
	387	bool Errors = _error->PendingError();
	388	_error->DumpErrors();
	389	return Errors == true?100:0;
	390	}
	391
3fc8f685 AL	392	return 0;
3fc8f685 AL	393	}