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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	#ifdef __GNUG__
	12	#pragma implementation "apt-pkg/clean.h"
	13	#endif
	14
	15	#include <apt-pkg/clean.h>
	16	#include <apt-pkg/strutl.h>
	17	#include <apt-pkg/error.h>
	18	#include <apt-pkg/configuration.h>
	19
	20	#include <apti18n.h>
	21
	22	#include <dirent.h>
	23	#include <sys/stat.h>
	24	#include <unistd.h>
	25	/}}}/
	26
	27	// ArchiveCleaner::Go - Perform smart cleanup of the archive /{{{/
	28	// ---------------------------------------------------------------------
	29	/* Scan the directory for files to erase, we check the version information
	30	against our database to see if it is interesting */
	31	bool pkgArchiveCleaner::Go(string Dir,pkgCache &Cache)
	32	{
	33	bool CleanInstalled = _config->FindB("APT::Clean-Installed",true);
	34	string MyArch = _config->Find("APT::Architecture");
	35
	36	DIR *D = opendir(Dir.c_str());
	37	if (D == 0)
	38	return _error->Errno("opendir",_("Unable to read %s"),Dir.c_str());
	39
	40	string StartDir = SafeGetCWD();
	41	if (chdir(Dir.c_str()) != 0)
	42	{
	43	closedir(D);
	44	return _error->Errno("chdir",_("Unable to change to %s"),Dir.c_str());
	45	}
	46
	47	for (struct dirent *Dir = readdir(D); Dir != 0; Dir = readdir(D))
	48	{
	49	// Skip some files..
	50	if (strcmp(Dir->d_name,"lock") == 0 \|\|
	51	strcmp(Dir->d_name,"partial") == 0 \|\|
	52	strcmp(Dir->d_name,".") == 0 \|\|
	53	strcmp(Dir->d_name,"..") == 0)
	54	continue;
	55
	56	struct stat St;
	57	if (stat(Dir->d_name,&St) != 0)
	58	{
	59	chdir(StartDir.c_str());
	60	closedir(D);
	61	return _error->Errno("stat",_("Unable to stat %s."),Dir->d_name);
	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	string Pkg = DeQuoteString(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	string Ver = DeQuoteString(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	string Arch = DeQuoteString(string(Start,I-Start));
	84
	85	if (Arch != "all" && Arch != MyArch)
	86	continue;
	87
	88	// Lookup the package
	89	pkgCache::PkgIterator P = Cache.FindPkg(Pkg);
	90	if (P.end() != true)
	91	{
	92	pkgCache::VerIterator V = P.VersionList();
	93	for (; V.end() == false; V++)
	94	{
	95	// See if we can fetch this version at all
	96	bool IsFetchable = false;
	97	for (pkgCache::VerFileIterator J = V.FileList();
	98	J.end() == false; J++)
	99	{
	100	if (CleanInstalled == true &&
	101	(J.File()->Flags & pkgCache::Flag::NotSource) != 0)
	102	continue;
	103	IsFetchable = true;
	104	break;
	105	}
	106
	107	// See if this verison matches the file
	108	if (IsFetchable == true && Ver == V.VerStr())
	109	break;
	110	}
	111
	112	// We found a match, keep the file
	113	if (V.end() == false)
	114	continue;
	115	}
	116
	117	Erase(Dir->d_name,Pkg,Ver,St);
	118	};
	119
	120	chdir(StartDir.c_str());
	121	closedir(D);
	122	return true;
	123	}
	124	/}}}/