mirror of
https://github.com/moparisthebest/pacman
synced 2024-10-31 15:45:03 -04:00
da648bc24c
* ALPM_LOG_FUNCTION macro and all the great work to add this macro everywhere
366 lines
11 KiB
C
366 lines
11 KiB
C
/*
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* remove.c
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*
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* Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
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* Copyright (c) 2005 by Aurelien Foret <orelien@chez.com>
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* Copyright (c) 2005 by Christian Hamar <krics@linuxforum.hu>
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* Copyright (c) 2006 by David Kimpe <dnaku@frugalware.org>
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* Copyright (c) 2005, 2006 by Miklos Vajna <vmiklos@frugalware.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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#if defined(__APPLE__) || defined(__OpenBSD__)
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#include <sys/syslimits.h>
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#endif
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#if defined(__APPLE__) || defined(__OpenBSD__) || defined(__sun__)
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#include <sys/stat.h>
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#endif
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#include "config.h"
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#include <stdlib.h>
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#include <errno.h>
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#include <time.h>
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#include <fcntl.h>
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#include <string.h>
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#include <limits.h>
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#include <unistd.h>
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#include <errno.h>
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#include <libintl.h>
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/* pacman */
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#include "alpm_list.h"
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#include "trans.h"
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#include "util.h"
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#include "error.h"
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#include "versioncmp.h"
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#include "md5.h"
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#include "sha1.h"
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#include "log.h"
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#include "backup.h"
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#include "package.h"
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#include "db.h"
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#include "cache.h"
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#include "deps.h"
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#include "provide.h"
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#include "remove.h"
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#include "handle.h"
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#include "alpm.h"
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int _alpm_remove_loadtarget(pmtrans_t *trans, pmdb_t *db, char *name)
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{
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pmpkg_t *info;
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ALPM_LOG_FUNC;
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ASSERT(db != NULL, RET_ERR(PM_ERR_DB_NULL, -1));
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ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
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ASSERT(name != NULL, RET_ERR(PM_ERR_WRONG_ARGS, -1));
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if(_alpm_pkg_isin(name, trans->packages)) {
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RET_ERR(PM_ERR_TRANS_DUP_TARGET, -1);
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}
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if((info = _alpm_db_scan(db, name, INFRQ_ALL)) == NULL) {
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/* Unimportant - just ignore it if we can't find it */
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_alpm_log(PM_LOG_DEBUG, _("could not find %s in database"), name);
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RET_ERR(PM_ERR_PKG_NOT_FOUND, -1);
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}
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/* ignore holdpkgs on upgrade */
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if((trans == handle->trans)
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&& alpm_list_find_str(handle->holdpkg, info->name)) {
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int resp = 0;
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QUESTION(trans, PM_TRANS_CONV_REMOVE_HOLDPKG, info, NULL, NULL, &resp);
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if(!resp) {
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RET_ERR(PM_ERR_PKG_HOLD, -1);
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}
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}
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_alpm_log(PM_LOG_FLOW2, _("adding %s in the targets list"), info->name);
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trans->packages = alpm_list_add(trans->packages, info);
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return(0);
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}
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int _alpm_remove_prepare(pmtrans_t *trans, pmdb_t *db, alpm_list_t **data)
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{
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alpm_list_t *lp;
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ALPM_LOG_FUNC;
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ASSERT(db != NULL, RET_ERR(PM_ERR_DB_NULL, -1));
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ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
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if(!(trans->flags & (PM_TRANS_FLAG_NODEPS)) && (trans->type != PM_TRANS_TYPE_UPGRADE)) {
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EVENT(trans, PM_TRANS_EVT_CHECKDEPS_START, NULL, NULL);
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_alpm_log(PM_LOG_FLOW1, _("looking for unsatisfied dependencies"));
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lp = _alpm_checkdeps(trans, db, trans->type, trans->packages);
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if(lp != NULL) {
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if(trans->flags & PM_TRANS_FLAG_CASCADE) {
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while(lp) {
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alpm_list_t *i;
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for(i = lp; i; i = i->next) {
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pmdepmissing_t *miss = (pmdepmissing_t *)i->data;
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pmpkg_t *info = _alpm_db_scan(db, miss->depend.name, INFRQ_ALL);
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if(info) {
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_alpm_log(PM_LOG_FLOW2, _("pulling %s in the targets list"), info->name);
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trans->packages = alpm_list_add(trans->packages, info);
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} else {
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_alpm_log(PM_LOG_ERROR, _("could not find %s in database -- skipping"),
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miss->depend.name);
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}
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}
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FREELIST(lp);
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lp = _alpm_checkdeps(trans, db, trans->type, trans->packages);
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}
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} else {
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if(data) {
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*data = lp;
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} else {
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FREELIST(lp);
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}
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RET_ERR(PM_ERR_UNSATISFIED_DEPS, -1);
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}
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}
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if(trans->flags & PM_TRANS_FLAG_RECURSE) {
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_alpm_log(PM_LOG_FLOW1, _("finding removable dependencies"));
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trans->packages = _alpm_removedeps(db, trans->packages);
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}
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/* re-order w.r.t. dependencies */
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_alpm_log(PM_LOG_FLOW1, _("sorting by dependencies"));
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lp = _alpm_sortbydeps(trans->packages, PM_TRANS_TYPE_REMOVE);
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/* free the old alltargs */
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FREELISTPTR(trans->packages);
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trans->packages = lp;
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EVENT(trans, PM_TRANS_EVT_CHECKDEPS_DONE, NULL, NULL);
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}
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return(0);
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}
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/* Helper function for comparing strings
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*/
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static int str_cmp(const void *s1, const void *s2)
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{
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return(strcmp(s1, s2));
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}
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/* Helper function for iterating through a package's file and deleting them
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* Used by _alpm_remove_commit
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*/
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static void unlink_file(pmpkg_t *info, alpm_list_t *lp, alpm_list_t *targ,
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pmtrans_t *trans, int filenum, int *position)
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{
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struct stat buf;
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int nb = 0;
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double percent = 0.0;
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char *file = lp->data;
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char line[PATH_MAX+1];
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char *checksum = _alpm_needbackup(lp->data, info->backup);
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ALPM_LOG_FUNC;
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if ( *position != 0 ) {
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percent = (double)*position / filenum;
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} if ( checksum ) {
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nb = 1;
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FREE(checksum);
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} if ( !nb && trans->type == PM_TRANS_TYPE_UPGRADE ) {
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/* check noupgrade */
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if ( alpm_list_find_str(handle->noupgrade, file) ) {
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nb = 1;
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}
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}
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snprintf(line, PATH_MAX, "%s%s", handle->root, file);
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if ( lstat(line, &buf) ) {
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_alpm_log(PM_LOG_DEBUG, _("file %s does not exist"), line);
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return;
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}
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if ( S_ISDIR(buf.st_mode) ) {
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if ( rmdir(line) ) {
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/* this is okay, other pakcages are probably using it (like /usr) */
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_alpm_log(PM_LOG_DEBUG, _("keeping directory %s"), line);
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} else {
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_alpm_log(PM_LOG_DEBUG, _("removing directory %s"), line);
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}
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} else {
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/* check the "skip list" before removing the file.
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* see the big comment block in db_find_conflicts() for an
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* explanation. */
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int skipit = 0;
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alpm_list_t *j;
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for ( j = trans->skiplist; j; j = j->next ) {
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if ( !strcmp(file, (char*)j->data) ) {
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skipit = 1;
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}
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}
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if ( skipit ) {
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_alpm_log(PM_LOG_FLOW2, _("skipping removal of %s as it has moved to another package"),
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line);
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} else {
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/* if the file is flagged, back it up to .pacsave */
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if ( nb ) {
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if ( !(trans->type == PM_TRANS_TYPE_UPGRADE) ) {
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/* if it was an upgrade, the file would be left alone because
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* pacman_add() would handle it */
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if ( !(trans->type & PM_TRANS_FLAG_NOSAVE) ) {
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char newpath[PATH_MAX];
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snprintf(newpath, PATH_MAX, "%s.pacsave", line);
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rename(line, newpath);
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_alpm_log(PM_LOG_WARNING, _("%s saved as %s"), line, newpath);
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}
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}
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} else {
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_alpm_log(PM_LOG_FLOW2, _("unlinking %s"), line);
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int list_count = alpm_list_count(trans->packages); /* this way we don't have to call alpm_list_count twice during PROGRESS */
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PROGRESS(trans, PM_TRANS_PROGRESS_REMOVE_START, info->name, (double)(percent * 100), list_count, (list_count - alpm_list_count(targ) + 1));
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++(*position);
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if (unlink(line) == -1) {
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_alpm_log(PM_LOG_ERROR, _("cannot remove file %s: %s"), file, strerror(errno));
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}
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}
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}
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}
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}
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int _alpm_remove_commit(pmtrans_t *trans, pmdb_t *db)
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{
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pmpkg_t *info;
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alpm_list_t *targ, *lp;
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ALPM_LOG_FUNC;
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ASSERT(db != NULL, RET_ERR(PM_ERR_DB_NULL, -1));
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ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
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for(targ = trans->packages; targ; targ = targ->next) {
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int position = 0;
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char pm_install[PATH_MAX];
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info = (pmpkg_t*)targ->data;
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if(handle->trans->state == STATE_INTERRUPTED) {
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break;
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}
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if(trans->type != PM_TRANS_TYPE_UPGRADE) {
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EVENT(trans, PM_TRANS_EVT_REMOVE_START, info, NULL);
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_alpm_log(PM_LOG_FLOW1, _("removing package %s-%s"), info->name, info->version);
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/* run the pre-remove scriptlet if it exists */
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if(info->scriptlet && !(trans->flags & PM_TRANS_FLAG_NOSCRIPTLET)) {
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snprintf(pm_install, PATH_MAX, "%s/%s-%s/install", db->path, info->name, info->version);
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_alpm_runscriptlet(handle->root, pm_install, "pre_remove", info->version, NULL, trans);
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}
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}
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if(!(trans->flags & PM_TRANS_FLAG_DBONLY)) {
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int filenum = alpm_list_count(info->files);
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_alpm_log(PM_LOG_FLOW1, _("removing files"));
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/* iterate through the list backwards, unlinking files */
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for(lp = alpm_list_last(info->files); lp; lp = lp->prev) {
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unlink_file(info, lp, targ, trans, filenum, &position);
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}
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}
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if(trans->type != PM_TRANS_TYPE_UPGRADE) {
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/* run the post-remove script if it exists */
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if(info->scriptlet && !(trans->flags & PM_TRANS_FLAG_NOSCRIPTLET)) {
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snprintf(pm_install, PATH_MAX, "%s/%s-%s/install", db->path, info->name, info->version);
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_alpm_runscriptlet(handle->root, pm_install, "post_remove", info->version, NULL, trans);
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}
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}
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/* remove the package from the database */
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_alpm_log(PM_LOG_FLOW1, _("updating database"));
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_alpm_log(PM_LOG_FLOW2, _("removing database entry '%s'"), info->name);
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if(_alpm_db_remove(db, info) == -1) {
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_alpm_log(PM_LOG_ERROR, _("could not remove database entry %s-%s"), info->name, info->version);
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}
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if(_alpm_db_remove_pkgfromcache(db, info) == -1) {
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_alpm_log(PM_LOG_ERROR, _("could not remove entry '%s' from cache"), info->name);
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}
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/* update dependency packages' REQUIREDBY fields */
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_alpm_log(PM_LOG_FLOW2, _("updating dependency packages 'requiredby' fields"));
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for(lp = info->depends; lp; lp = lp->next) {
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pmpkg_t *depinfo = NULL;
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pmdepend_t depend;
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void *vdata;
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char *data;
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if(_alpm_splitdep((char*)lp->data, &depend)) {
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continue;
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}
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/* if this dependency is in the transaction targets, no need to update
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* its requiredby info: it is in the process of being removed (if not
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* already done!)
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*/
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if(_alpm_pkg_isin(depend.name, trans->packages)) {
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continue;
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}
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depinfo = _alpm_db_get_pkgfromcache(db, depend.name);
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if(depinfo == NULL) {
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/* look for a provides package */
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alpm_list_t *provides = _alpm_db_whatprovides(db, depend.name);
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if(provides) {
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/* TODO: should check _all_ packages listed in provides, not just
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* the first one.
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*/
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/* use the first one */
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depinfo = _alpm_db_get_pkgfromcache(db, ((pmpkg_t *)provides->data)->name);
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FREELISTPTR(provides);
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}
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if(depinfo == NULL) {
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/* dep not installed... that's fine, carry on */
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_alpm_log(PM_LOG_DEBUG, _("could not find dependency '%s' for removal"), depend.name);
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continue;
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}
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}
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/* Ensure package has the appropriate data */
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_alpm_db_read(db, INFRQ_DEPENDS, depinfo);
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/* splice out this entry from requiredby */
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depinfo->requiredby = alpm_list_remove(depinfo->requiredby, info->name, str_cmp, &vdata);
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data = vdata;
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FREE(data);
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_alpm_log(PM_LOG_DEBUG, _("updating 'requiredby' field for package '%s'"), depinfo->name);
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if(_alpm_db_write(db, depinfo, INFRQ_DEPENDS)) {
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_alpm_log(PM_LOG_ERROR, _("could not update 'requiredby' database entry %s-%s"),
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depinfo->name, depinfo->version);
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}
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}
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PROGRESS(trans, PM_TRANS_PROGRESS_REMOVE_START, info->name, 100, alpm_list_count(trans->packages), (alpm_list_count(trans->packages) - alpm_list_count(targ) +1));
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if(trans->type != PM_TRANS_TYPE_UPGRADE) {
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EVENT(trans, PM_TRANS_EVT_REMOVE_DONE, info, NULL);
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}
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}
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/* run ldconfig if it exists */
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if((trans->type != PM_TRANS_TYPE_UPGRADE) && (handle->trans->state != STATE_INTERRUPTED)) {
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_alpm_log(PM_LOG_FLOW1, _("running \"ldconfig -r %s\""), handle->root);
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_alpm_ldconfig(handle->root);
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}
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return(0);
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}
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/* vim: set ts=2 sw=2 noet: */
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