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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	DIR *D = opendir(Dir.c_str());
	39	if (D == 0)
	40	return _error->Errno("opendir",_("Unable to read %s"),Dir.c_str());
	41
	42	std::string StartDir = SafeGetCWD();
	43	if (chdir(Dir.c_str()) != 0)
	44	{
	45	closedir(D);
	46	return _error->Errno("chdir",_("Unable to change to %s"),Dir.c_str());
	47	}
	48
	49	for (struct dirent *Dir = readdir(D); Dir != 0; Dir = readdir(D))
	50	{
	51	// Skip some files..
	52	if (strcmp(Dir->d_name,"lock") == 0 \|\|
	53	strcmp(Dir->d_name,"partial") == 0 \|\|
	54	strcmp(Dir->d_name,".") == 0 \|\|
	55	strcmp(Dir->d_name,"..") == 0)
	56	continue;
	57
	58	struct stat St;
	59	if (stat(Dir->d_name,&St) != 0)
	60	{
	61	_error->Errno("stat",_("Unable to stat %s."),Dir->d_name);
	62	closedir(D);
	63	if (chdir(StartDir.c_str()) != 0)
	64	return _error->Errno("chdir", _("Unable to change to %s"), StartDir.c_str());
	65	return false;
	66	}
	67
	68	// Grab the package name
	69	const char *I = Dir->d_name;
	70	for (; I != 0 && I != '_';I++);
	71	if (*I != '_')
	72	continue;
	73	std::string Pkg = DeQuoteString(std::string(Dir->d_name,I-Dir->d_name));
	74
	75	// Grab the version
	76	const char *Start = I + 1;
	77	for (I = Start; I != 0 && I != '_';I++);
	78	if (*I != '_')
	79	continue;
	80	std::string Ver = DeQuoteString(std::string(Start,I-Start));
	81
	82	// Grab the arch
	83	Start = I + 1;
	84	for (I = Start; I != 0 && I != '.' ;I++);
	85	if (*I != '.')
	86	continue;
	87	std::string const Arch = DeQuoteString(std::string(Start,I-Start));
	88
	89	// ignore packages of unconfigured architectures
	90	if (APT::Configuration::checkArchitecture(Arch) == false)
	91	continue;
	92
	93	// Lookup the package
	94	pkgCache::PkgIterator P = Cache.FindPkg(Pkg, Arch);
	95	if (P.end() != true)
	96	{
	97	pkgCache::VerIterator V = P.VersionList();
	98	for (; V.end() == false; ++V)
	99	{
	100	// See if we can fetch this version at all
	101	bool IsFetchable = false;
	102	for (pkgCache::VerFileIterator J = V.FileList();
	103	J.end() == false; ++J)
	104	{
	105	if (CleanInstalled == true &&
	106	(J.File()->Flags & pkgCache::Flag::NotSource) != 0)
	107	continue;
	108	IsFetchable = true;
	109	break;
	110	}
	111
	112	// See if this version matches the file
	113	if (IsFetchable == true && Ver == V.VerStr())
	114	break;
	115	}
	116
	117	// We found a match, keep the file
	118	if (V.end() == false)
	119	continue;
	120	}
	121
	122	Erase(Dir->d_name,Pkg,Ver,St);
	123	};
	124
	125	closedir(D);
	126	if (chdir(StartDir.c_str()) != 0)
	127	return _error->Errno("chdir", _("Unable to change to %s"), StartDir.c_str());
	128	return true;
	129	}
	130	/}}}/