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Commit	Line	Data
	1	// -- mode: cpp; mode: fold --
	2	// Description /{{{/
	3	// $Id: clean.cc,v 1.4 2001/02/20 07:03:17 jgg Exp $
	4	/* ######################################################################
	5
	6	Clean - Clean out downloaded directories
	7
	8	##################################################################### */
	9	/}}}/
	10	// Includes /{{{/
	11	#include<config.h>
	12
	13	#include <apt-pkg/clean.h>
	14	#include <apt-pkg/strutl.h>
	15	#include <apt-pkg/error.h>
	16	#include <apt-pkg/configuration.h>
	17	#include <apt-pkg/aptconfiguration.h>
	18	#include <apt-pkg/fileutl.h>
	19
	20	#include <dirent.h>
	21	#include <sys/stat.h>
	22	#include <unistd.h>
	23
	24	#include <apti18n.h>
	25	/}}}/
	26	// ArchiveCleaner::Go - Perform smart cleanup of the archive /{{{/
	27	// ---------------------------------------------------------------------
	28	/* Scan the directory for files to erase, we check the version information
	29	against our database to see if it is interesting */
	30	bool pkgArchiveCleaner::Go(std::string Dir,pkgCache &Cache)
	31	{
	32	bool CleanInstalled = _config->FindB("APT::Clean-Installed",true);
	33
	34	DIR *D = opendir(Dir.c_str());
	35	if (D == 0)
	36	return _error->Errno("opendir",_("Unable to read %s"),Dir.c_str());
	37
	38	std::string StartDir = SafeGetCWD();
	39	if (chdir(Dir.c_str()) != 0)
	40	{
	41	closedir(D);
	42	return _error->Errno("chdir",_("Unable to change to %s"),Dir.c_str());
	43	}
	44
	45	for (struct dirent *Dir = readdir(D); Dir != 0; Dir = readdir(D))
	46	{
	47	// Skip some files..
	48	if (strcmp(Dir->d_name,"lock") == 0 \|\|
	49	strcmp(Dir->d_name,"partial") == 0 \|\|
	50	strcmp(Dir->d_name,".") == 0 \|\|
	51	strcmp(Dir->d_name,"..") == 0)
	52	continue;
	53
	54	struct stat St;
	55	if (stat(Dir->d_name,&St) != 0)
	56	{
	57	_error->Errno("stat",_("Unable to stat %s."),Dir->d_name);
	58	closedir(D);
	59	if (chdir(StartDir.c_str()) != 0)
	60	return _error->Errno("chdir", _("Unable to change to %s"), StartDir.c_str());
	61	return false;
	62	}
	63
	64	// Grab the package name
	65	const char *I = Dir->d_name;
	66	for (; I != 0 && I != '_';I++);
	67	if (*I != '_')
	68	continue;
	69	std::string Pkg = DeQuoteString(std::string(Dir->d_name,I-Dir->d_name));
	70
	71	// Grab the version
	72	const char *Start = I + 1;
	73	for (I = Start; I != 0 && I != '_';I++);
	74	if (*I != '_')
	75	continue;
	76	std::string Ver = DeQuoteString(std::string(Start,I-Start));
	77
	78	// Grab the arch
	79	Start = I + 1;
	80	for (I = Start; I != 0 && I != '.' ;I++);
	81	if (*I != '.')
	82	continue;
	83	std::string const Arch = DeQuoteString(std::string(Start,I-Start));
	84
	85	// ignore packages of unconfigured architectures
	86	if (APT::Configuration::checkArchitecture(Arch) == false)
	87	continue;
	88
	89	// Lookup the package
	90	pkgCache::PkgIterator P = Cache.FindPkg(Pkg, Arch);
	91	if (P.end() != true)
	92	{
	93	pkgCache::VerIterator V = P.VersionList();
	94	for (; V.end() == false; ++V)
	95	{
	96	// See if we can fetch this version at all
	97	bool IsFetchable = false;
	98	for (pkgCache::VerFileIterator J = V.FileList();
	99	J.end() == false; ++J)
	100	{
	101	if (CleanInstalled == true &&
	102	(J.File()->Flags & pkgCache::Flag::NotSource) != 0)
	103	continue;
	104	IsFetchable = true;
	105	break;
	106	}
	107
	108	// See if this verison matches the file
	109	if (IsFetchable == true && Ver == V.VerStr())
	110	break;
	111	}
	112
	113	// We found a match, keep the file
	114	if (V.end() == false)
	115	continue;
	116	}
	117
	118	Erase(Dir->d_name,Pkg,Ver,St);
	119	};
	120
	121	closedir(D);
	122	if (chdir(StartDir.c_str()) != 0)
	123	return _error->Errno("chdir", _("Unable to change to %s"), StartDir.c_str());
	124	return true;
	125	}
	126	/}}}/