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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	#include <apt-pkg/pkgcache.h>
	20	#include <apt-pkg/cacheiterators.h>
	21
	22	#include <string>
	23	#include <string.h>
	24	#include <dirent.h>
	25	#include <sys/stat.h>
	26	#include <unistd.h>
	27
	28	#include <apti18n.h>
	29	/}}}/
	30	// ArchiveCleaner::Go - Perform smart cleanup of the archive /{{{/
	31	// ---------------------------------------------------------------------
	32	/* Scan the directory for files to erase, we check the version information
	33	against our database to see if it is interesting */
	34	bool pkgArchiveCleaner::Go(std::string Dir,pkgCache &Cache)
	35	{
	36	bool CleanInstalled = _config->FindB("APT::Clean-Installed",true);
	37
	38	if(Dir == "/")
	39	return _error->Error(_("Clean of %s is not supported"), Dir.c_str());
	40
	41	DIR *D = opendir(Dir.c_str());
	42	if (D == 0)
	43	return _error->Errno("opendir",_("Unable to read %s"),Dir.c_str());
	44
	45	std::string StartDir = SafeGetCWD();
	46	if (chdir(Dir.c_str()) != 0)
	47	{
	48	closedir(D);
	49	return _error->Errno("chdir",_("Unable to change to %s"),Dir.c_str());
	50	}
	51
	52	for (struct dirent *Dir = readdir(D); Dir != 0; Dir = readdir(D))
	53	{
	54	// Skip some files..
	55	if (strcmp(Dir->d_name,"lock") == 0 \|\|
	56	strcmp(Dir->d_name,"partial") == 0 \|\|
	57	strcmp(Dir->d_name,".") == 0 \|\|
	58	strcmp(Dir->d_name,"..") == 0)
	59	continue;
	60
	61	struct stat St;
	62	if (stat(Dir->d_name,&St) != 0)
	63	{
	64	_error->Errno("stat",_("Unable to stat %s."),Dir->d_name);
	65	closedir(D);
	66	if (chdir(StartDir.c_str()) != 0)
	67	return _error->Errno("chdir", _("Unable to change to %s"), StartDir.c_str());
	68	return false;
	69	}
	70
	71	// Grab the package name
	72	const char *I = Dir->d_name;
	73	for (; I != 0 && I != '_';I++);
	74	if (*I != '_')
	75	continue;
	76	std::string Pkg = DeQuoteString(std::string(Dir->d_name,I-Dir->d_name));
	77
	78	// Grab the version
	79	const char *Start = I + 1;
	80	for (I = Start; I != 0 && I != '_';I++);
	81	if (*I != '_')
	82	continue;
	83	std::string Ver = DeQuoteString(std::string(Start,I-Start));
	84
	85	// Grab the arch
	86	Start = I + 1;
	87	for (I = Start; I != 0 && I != '.' ;I++);
	88	if (*I != '.')
	89	continue;
	90	std::string const Arch = DeQuoteString(std::string(Start,I-Start));
	91
	92	// ignore packages of unconfigured architectures
	93	if (APT::Configuration::checkArchitecture(Arch) == false)
	94	continue;
	95
	96	// Lookup the package
	97	pkgCache::PkgIterator P = Cache.FindPkg(Pkg, Arch);
	98	if (P.end() != true)
	99	{
	100	pkgCache::VerIterator V = P.VersionList();
	101	for (; V.end() == false; ++V)
	102	{
	103	// See if we can fetch this version at all
	104	bool IsFetchable = false;
	105	for (pkgCache::VerFileIterator J = V.FileList();
	106	J.end() == false; ++J)
	107	{
	108	if (CleanInstalled == true &&
	109	(J.File()->Flags & pkgCache::Flag::NotSource) != 0)
	110	continue;
	111	IsFetchable = true;
	112	break;
	113	}
	114
	115	// See if this version matches the file
	116	if (IsFetchable == true && Ver == V.VerStr())
	117	break;
	118	}
	119
	120	// We found a match, keep the file
	121	if (V.end() == false)
	122	continue;
	123	}
	124
	125	Erase(Dir->d_name,Pkg,Ver,St);
	126	};
	127
	128	closedir(D);
	129	if (chdir(StartDir.c_str()) != 0)
	130	return _error->Errno("chdir", _("Unable to change to %s"), StartDir.c_str());
	131	return true;
	132	}
	133	/}}}/