/* * sync.c * * Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org> * Copyright (c) 2005 by Aurelien Foret <orelien@chez.com> * Copyright (c) 2005 by Christian Hamar <krics@linuxforum.hu> * Copyright (c) 2005, 2006 by Miklos Vajna <vmiklos@frugalware.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, * USA. */ #include "config.h" #include <stdlib.h> #include <stdio.h> #include <fcntl.h> #include <string.h> #include <time.h> #ifdef CYGWIN #include <limits.h> /* PATH_MAX */ #endif #include <dirent.h> /* libalpm */ #include "sync.h" #include "alpm_list.h" #include "log.h" #include "error.h" #include "package.h" #include "db.h" #include "cache.h" #include "deps.h" #include "conflict.h" #include "provide.h" #include "trans.h" #include "util.h" #include "versioncmp.h" #include "handle.h" #include "util.h" #include "alpm.h" #include "md5.h" #include "sha1.h" #include "handle.h" #include "server.h" pmsyncpkg_t *_alpm_sync_new(int type, pmpkg_t *spkg, void *data) { pmsyncpkg_t *sync; ALPM_LOG_FUNC; if((sync = (pmsyncpkg_t *)malloc(sizeof(pmsyncpkg_t))) == NULL) { _alpm_log(PM_LOG_ERROR, _("malloc failure: could not allocate %d bytes"), sizeof(pmsyncpkg_t)); return(NULL); } sync->type = type; sync->pkg = spkg; sync->data = data; return(sync); } void _alpm_sync_free(pmsyncpkg_t *sync) { ALPM_LOG_FUNC; if(sync == NULL) { return; } /* TODO wow this is ugly */ if(sync->type == PM_SYNC_TYPE_REPLACE) { alpm_list_t *tmp; for(tmp = sync->data; tmp; tmp = alpm_list_next(tmp)) { _alpm_pkg_free(tmp->data); tmp->data = NULL; } sync->data = NULL; } else { _alpm_pkg_free(sync->data); sync->data = NULL; } FREE(sync); } /* Find recommended replacements for packages during a sync. * (refactored from _alpm_sync_prepare) */ static int find_replacements(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync) { alpm_list_t *i, *j, *k; /* wow */ ALPM_LOG_FUNC; /* check for "recommended" package replacements */ _alpm_log(PM_LOG_DEBUG, _("checking for package replacements")); for(i = dbs_sync; i; i = i->next) { pmdb_t *db = i->data; /* for each db, check each package's REPLACES list */ for(j = _alpm_db_get_pkgcache(db); j; j = j->next) { pmpkg_t *spkg = j->data; for(k = alpm_pkg_get_replaces(spkg); k; k = k->next) { const char *replacement = k->data; pmpkg_t *lpkg = _alpm_db_get_pkgfromcache(db_local, replacement); if(!lpkg) { continue; } _alpm_log(PM_LOG_DEBUG, _("checking replacement '%s' for package '%s'"), replacement, spkg->name); if(alpm_list_find_str(handle->ignorepkg, lpkg->name)) { _alpm_log(PM_LOG_WARNING, _("%s-%s: ignoring package upgrade (to be replaced by %s-%s)"), alpm_pkg_get_name(lpkg), alpm_pkg_get_version(lpkg), alpm_pkg_get_name(spkg), alpm_pkg_get_version(spkg)); } else { /* get confirmation for the replacement */ int doreplace = 0; QUESTION(trans, PM_TRANS_CONV_REPLACE_PKG, lpkg, spkg, db->treename, &doreplace); if(doreplace) { /* if confirmed, add this to the 'final' list, designating 'lpkg' as * the package to replace. */ pmsyncpkg_t *sync; pmpkg_t *dummy = _alpm_pkg_new(alpm_pkg_get_name(lpkg), NULL); if(dummy == NULL) { pm_errno = PM_ERR_MEMORY; goto error; } dummy->requiredby = alpm_list_strdup(alpm_pkg_get_requiredby(lpkg)); /* check if spkg->name is already in the packages list. */ sync = _alpm_sync_find(trans->packages, alpm_pkg_get_name(spkg)); if(sync) { /* found it -- just append to the replaces list */ sync->data = alpm_list_add(sync->data, dummy); } else { /* none found -- enter pkg into the final sync list */ sync = _alpm_sync_new(PM_SYNC_TYPE_REPLACE, spkg, NULL); if(sync == NULL) { _alpm_pkg_free(dummy); pm_errno = PM_ERR_MEMORY; goto error; } sync->data = alpm_list_add(NULL, dummy); trans->packages = alpm_list_add(trans->packages, sync); } _alpm_log(PM_LOG_DEBUG, _("%s-%s elected for upgrade (to be replaced by %s-%s)"), alpm_pkg_get_name(lpkg), alpm_pkg_get_version(lpkg), alpm_pkg_get_name(spkg), alpm_pkg_get_version(spkg)); } } } } } return(0); error: return(-1); } /* TODO reimplement this in terms of alpm_get_upgrades */ int _alpm_sync_sysupgrade(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync) { alpm_list_t *i, *j; ALPM_LOG_FUNC; /* check for "recommended" package replacements */ if(find_replacements(trans, db_local, dbs_sync) == 0) { /* match installed packages with the sync dbs and compare versions */ _alpm_log(PM_LOG_DEBUG, _("checking for package upgrades")); for(i = _alpm_db_get_pkgcache(db_local); i; i = i->next) { int replace=0; pmpkg_t *local = i->data; pmpkg_t *spkg = NULL; pmsyncpkg_t *sync; for(j = dbs_sync; !spkg && j; j = j->next) { spkg = _alpm_db_get_pkgfromcache(j->data, alpm_pkg_get_name(local)); } if(spkg == NULL) { _alpm_log(PM_LOG_DEBUG, _("'%s' not found in sync db -- skipping"), alpm_pkg_get_name(local)); continue; } /* we don't care about a to-be-replaced package's newer version */ for(j = trans->packages; j && !replace; j=j->next) { sync = j->data; if(sync->type == PM_SYNC_TYPE_REPLACE) { if(_alpm_pkg_find(alpm_pkg_get_name(spkg), sync->data)) { replace=1; } } } if(replace) { _alpm_log(PM_LOG_DEBUG, _("'%s' is already elected for removal -- skipping"), alpm_pkg_get_name(local)); continue; } /* compare versions and see if we need to upgrade */ if(alpm_pkg_compare_versions(local, spkg)) { _alpm_log(PM_LOG_DEBUG, _("%s-%s elected for upgrade (%s => %s)"), alpm_pkg_get_name(local), alpm_pkg_get_version(local), alpm_pkg_get_name(spkg), alpm_pkg_get_version(spkg)); if(!_alpm_sync_find(trans->packages, alpm_pkg_get_name(spkg))) { /* If package is in the ignorepkg list, ask before we add it to * the transaction */ if(alpm_list_find_str(handle->ignorepkg, alpm_pkg_get_name(local))) { int resp = 0; QUESTION(trans, PM_TRANS_CONV_INSTALL_IGNOREPKG, local, NULL, NULL, &resp); if(!resp) { continue; } } pmpkg_t *tmp = _alpm_pkg_dup(local); if(tmp == NULL) { goto error; } sync = _alpm_sync_new(PM_SYNC_TYPE_UPGRADE, spkg, tmp); if(sync == NULL) { _alpm_pkg_free(tmp); goto error; } trans->packages = alpm_list_add(trans->packages, sync); } } } return(0); } error: /* if we're here, it's an error */ return(-1); } int _alpm_sync_addtarget(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync, char *name) { char targline[PKG_FULLNAME_LEN]; char *targ; alpm_list_t *j; pmpkg_t *local; pmpkg_t *spkg = NULL; pmsyncpkg_t *sync; int repo_found = 0; ALPM_LOG_FUNC; ASSERT(db_local != NULL, RET_ERR(PM_ERR_DB_NULL, -1)); ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1)); ASSERT(name != NULL, RET_ERR(PM_ERR_WRONG_ARGS, -1)); STRNCPY(targline, name, PKG_FULLNAME_LEN); targ = strchr(targline, '/'); if(targ) { *targ = '\0'; targ++; _alpm_log(PM_LOG_DEBUG, _("searching for target in repo '%s'"), targ); for(j = dbs_sync; j && !spkg; j = j->next) { pmdb_t *db = j->data; if(strcmp(db->treename, targline) == 0) { repo_found = 1; spkg = _alpm_db_get_pkgfromcache(db, targ); if(spkg == NULL) { /* Search provides */ _alpm_log(PM_LOG_DEBUG, _("target '%s' not found -- looking for provisions"), targ); alpm_list_t *p = _alpm_db_whatprovides(db, targ); if(!p) { RET_ERR(PM_ERR_PKG_NOT_FOUND, -1); } _alpm_log(PM_LOG_DEBUG, _("found '%s' as a provision for '%s'"), p->data, targ); spkg = _alpm_db_get_pkgfromcache(db, p->data); alpm_list_free(p); } } } if(!repo_found) { _alpm_log(PM_LOG_ERROR, _("repository '%s' not found"), targline); RET_ERR(PM_ERR_PKG_REPO_NOT_FOUND, -1); } } else { targ = targline; for(j = dbs_sync; j && !spkg; j = j->next) { pmdb_t *db = j->data; spkg = _alpm_db_get_pkgfromcache(db, targ); } if(spkg == NULL) { /* Search provides */ _alpm_log(PM_LOG_DEBUG, _("target '%s' not found -- looking for provisions"), targ); for(j = dbs_sync; j && !spkg; j = j->next) { pmdb_t *db = j->data; alpm_list_t *p = _alpm_db_whatprovides(db, targ); if(p) { _alpm_log(PM_LOG_DEBUG, _("found '%s' as a provision for '%s'"), p->data, targ); spkg = _alpm_db_get_pkgfromcache(db, p->data); alpm_list_free(p); } } } } if(spkg == NULL) { RET_ERR(PM_ERR_PKG_NOT_FOUND, -1); } local = _alpm_db_get_pkgfromcache(db_local, alpm_pkg_get_name(spkg)); if(local) { if(alpm_pkg_compare_versions(local, spkg) == 0) { /* spkg is NOT an upgrade, get confirmation before adding */ int resp = 0; if(alpm_list_find_str(handle->ignorepkg, alpm_pkg_get_name(local))) { QUESTION(trans, PM_TRANS_CONV_INSTALL_IGNOREPKG, local, NULL, NULL, &resp); if(!resp) { return(0); } } else if(!(trans->flags & PM_TRANS_FLAG_PRINTURIS)) { QUESTION(trans, PM_TRANS_CONV_LOCAL_UPTODATE, local, NULL, NULL, &resp); if(!resp) { _alpm_log(PM_LOG_WARNING, _("%s-%s is up to date -- skipping"), alpm_pkg_get_name(local), alpm_pkg_get_version(local)); return(0); } } } } /* add the package to the transaction */ if(!_alpm_sync_find(trans->packages, alpm_pkg_get_name(spkg))) { pmpkg_t *dummy = NULL; if(local) { dummy = _alpm_pkg_new(alpm_pkg_get_name(local), alpm_pkg_get_version(local)); if(dummy == NULL) { RET_ERR(PM_ERR_MEMORY, -1); } } sync = _alpm_sync_new(PM_SYNC_TYPE_UPGRADE, spkg, dummy); if(sync == NULL) { _alpm_pkg_free(dummy); RET_ERR(PM_ERR_MEMORY, -1); } _alpm_log(PM_LOG_DEBUG, _("adding target '%s' to the transaction set"), alpm_pkg_get_name(spkg)); trans->packages = alpm_list_add(trans->packages, sync); } return(0); } /* Helper functions for alpm_list_remove */ static int syncpkg_cmp(const void *s1, const void *s2) { pmsyncpkg_t *sp1 = (pmsyncpkg_t *)s1; pmsyncpkg_t *sp2 = (pmsyncpkg_t *)s2; pmpkg_t *p1, *p2; p1 = alpm_sync_get_pkg(sp1); p2 = alpm_sync_get_pkg(sp2); return(strcmp(alpm_pkg_get_name(p1), alpm_pkg_get_name(p2))); } int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync, alpm_list_t **data) { alpm_list_t *deps = NULL; alpm_list_t *list = NULL; /* list allowing checkdeps usage with data from trans->packages */ alpm_list_t *trail = NULL; /* breadcrumb list to avoid running into circles */ alpm_list_t *asked = NULL; alpm_list_t *i, *j, *k, *l; int ret = 0; ALPM_LOG_FUNC; ASSERT(db_local != NULL, RET_ERR(PM_ERR_DB_NULL, -1)); ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1)); if(data) { *data = NULL; } for(i = trans->packages; i; i = i->next) { pmsyncpkg_t *sync = i->data; list = alpm_list_add(list, sync->pkg); } if(!(trans->flags & PM_TRANS_FLAG_NODEPS)) { /* Resolve targets dependencies */ EVENT(trans, PM_TRANS_EVT_RESOLVEDEPS_START, NULL, NULL); _alpm_log(PM_LOG_DEBUG, _("resolving target's dependencies")); for(i = trans->packages; i; i = i->next) { pmpkg_t *spkg = ((pmsyncpkg_t *)i->data)->pkg; if(_alpm_resolvedeps(db_local, dbs_sync, spkg, list, trail, trans, data) == -1) { /* pm_errno is set by resolvedeps */ ret = -1; goto cleanup; } } for(i = list; i; i = i->next) { /* add the dependencies found by resolvedeps to the transaction set */ pmpkg_t *spkg = i->data; if(!_alpm_sync_find(trans->packages, alpm_pkg_get_name(spkg))) { pmsyncpkg_t *sync = _alpm_sync_new(PM_SYNC_TYPE_DEPEND, spkg, NULL); if(sync == NULL) { ret = -1; goto cleanup; } trans->packages = alpm_list_add(trans->packages, sync); _alpm_log(PM_LOG_DEBUG, _("adding package %s-%s to the transaction targets"), alpm_pkg_get_name(spkg), alpm_pkg_get_version(spkg)); } else { /* remove the original targets from the list if requested */ if((trans->flags & PM_TRANS_FLAG_DEPENDSONLY)) { void *vpkg; pmsyncpkg_t *sync; const char *pkgname; pkgname = alpm_pkg_get_name(spkg); _alpm_log(PM_LOG_DEBUG, "removing package %s-%s from the transaction targets", pkgname, alpm_pkg_get_version(spkg)); sync = _alpm_sync_find(trans->packages, pkgname); trans->packages = alpm_list_remove(trans->packages, sync, syncpkg_cmp, &vpkg); _alpm_sync_free(vpkg); } } } /* re-order w.r.t. dependencies */ k = l = NULL; for(i=trans->packages; i; i=i->next) { pmsyncpkg_t *s = (pmsyncpkg_t*)i->data; k = alpm_list_add(k, s->pkg); } k = _alpm_sortbydeps(k, PM_TRANS_TYPE_ADD); for(i=k; i; i=i->next) { for(j=trans->packages; j; j=j->next) { pmsyncpkg_t *s = (pmsyncpkg_t*)j->data; if(s->pkg==i->data) { l = alpm_list_add(l, s); } } } alpm_list_free(k); alpm_list_free(trans->packages); trans->packages = l; EVENT(trans, PM_TRANS_EVT_RESOLVEDEPS_DONE, NULL, NULL); _alpm_log(PM_LOG_DEBUG, _("looking for unresolvable dependencies")); deps = _alpm_checkdeps(trans, db_local, PM_TRANS_TYPE_UPGRADE, list); if(deps) { if(data) { *data = deps; deps = NULL; } pm_errno = PM_ERR_UNSATISFIED_DEPS; ret = -1; goto cleanup; } alpm_list_free(trail); } /* We don't care about conflicts if we're just printing uris */ if(!(trans->flags & (PM_TRANS_FLAG_NOCONFLICTS | PM_TRANS_FLAG_PRINTURIS))) { /* check for inter-conflicts and whatnot */ EVENT(trans, PM_TRANS_EVT_INTERCONFLICTS_START, NULL, NULL); _alpm_log(PM_LOG_DEBUG, _("looking for conflicts")); deps = _alpm_checkconflicts(db_local, list); if(deps) { int errorout = 0; for(i = deps; i && !errorout; i = i->next) { pmdepmissing_t *miss = i->data; int found = 0; pmsyncpkg_t *sync; pmpkg_t *local; _alpm_log(PM_LOG_DEBUG, _("package '%s' conflicts with '%s'"), miss->target, miss->depend.name); /* check if the conflicting package is one that's about to be removed/replaced. * if so, then just ignore it */ for(j = trans->packages; j && !found; j = j->next) { sync = j->data; if(sync->type == PM_SYNC_TYPE_REPLACE) { if(_alpm_pkg_find(miss->depend.name, sync->data)) { found = 1; } } } if(found) { _alpm_log(PM_LOG_DEBUG, _("'%s' is already elected for removal -- skipping"), miss->depend.name); continue; } sync = _alpm_sync_find(trans->packages, miss->target); if(sync == NULL) { _alpm_log(PM_LOG_DEBUG, _("'%s' not found in transaction set -- skipping"), miss->target); continue; } local = _alpm_db_get_pkgfromcache(db_local, miss->depend.name); /* check if this package also "provides" the package it's conflicting with */ if(alpm_list_find_str(alpm_pkg_get_provides(sync->pkg), miss->depend.name)) { /* so just treat it like a "replaces" item so the REQUIREDBY * fields are inherited properly. */ _alpm_log(PM_LOG_DEBUG, _("package '%s' provides its own conflict"), miss->target); if(local) { /* nothing to do for now: it will be handled later * (not the same behavior as in pacman 2.x) */ } else { char *rmpkg = NULL; int target, depend; /* hmmm, depend.name isn't installed, so it must be conflicting * with another package in our final list. For example: * * pacman -S blackbox xfree86 * * If no x-servers are installed and blackbox pulls in xorg, then * xorg and xfree86 will conflict with each other. In this case, * we should follow the user's preference and rip xorg out of final, * opting for xfree86 instead. */ /* figure out which one was requested in targets. If they both were, * then it's still an unresolvable conflict. */ target = alpm_list_find_str(trans->targets, miss->target); depend = alpm_list_find_str(trans->targets, miss->depend.name); if(depend && !target) { _alpm_log(PM_LOG_DEBUG, _("'%s' is in the target list -- keeping it"), miss->depend.name); /* remove miss->target */ rmpkg = miss->target; } else if(target && !depend) { _alpm_log(PM_LOG_DEBUG, _("'%s' is in the target list -- keeping it"), miss->target); /* remove miss->depend.name */ rmpkg = miss->depend.name; } else { /* miss->depend.name is not needed, miss->target already provides * it, let's resolve the conflict */ rmpkg = miss->depend.name; } if(rmpkg) { pmsyncpkg_t *rsync = _alpm_sync_find(trans->packages, rmpkg); void *vpkg; _alpm_log(PM_LOG_DEBUG, _("removing '%s' from target list"), rsync->pkg->name); trans->packages = alpm_list_remove(trans->packages, rsync, syncpkg_cmp, &vpkg); _alpm_sync_free(vpkg); continue; } } } /* It's a conflict -- see if they want to remove it */ _alpm_log(PM_LOG_DEBUG, _("resolving package '%s' conflict"), miss->target); if(local) { int doremove = 0; if(!alpm_list_find_str(asked, miss->depend.name)) { QUESTION(trans, PM_TRANS_CONV_CONFLICT_PKG, miss->target, miss->depend.name, NULL, &doremove); asked = alpm_list_add(asked, strdup(miss->depend.name)); if(doremove) { pmsyncpkg_t *rsync = _alpm_sync_find(trans->packages, miss->depend.name); pmpkg_t *q = _alpm_pkg_new(miss->depend.name, NULL); if(q == NULL) { if(data) { FREELIST(*data); } ret = -1; goto cleanup; } q->requiredby = alpm_list_strdup(alpm_pkg_get_requiredby(local)); if(sync->type != PM_SYNC_TYPE_REPLACE) { /* switch this sync type to REPLACE */ sync->type = PM_SYNC_TYPE_REPLACE; _alpm_pkg_free(sync->data); sync->data = NULL; } /* append to the replaces list */ _alpm_log(PM_LOG_DEBUG, _("electing '%s' for removal"), miss->depend.name); sync->data = alpm_list_add(sync->data, q); if(rsync) { /* remove it from the target list */ void *vpkg; _alpm_log(PM_LOG_DEBUG, _("removing '%s' from target list"), miss->depend.name); trans->packages = alpm_list_remove(trans->packages, rsync, syncpkg_cmp, &vpkg); _alpm_sync_free(vpkg); } } else { /* abort */ _alpm_log(PM_LOG_ERROR, _("unresolvable package conflicts detected")); errorout = 1; if(data) { if((miss = (pmdepmissing_t *)malloc(sizeof(pmdepmissing_t))) == NULL) { _alpm_log(PM_LOG_ERROR, _("malloc failure: could not allocate %d bytes"), sizeof(pmdepmissing_t)); FREELIST(*data); pm_errno = PM_ERR_MEMORY; ret = -1; goto cleanup; } *miss = *(pmdepmissing_t *)i->data; *data = alpm_list_add(*data, miss); } } } } else { _alpm_log(PM_LOG_ERROR, _("unresolvable package conflicts detected")); errorout = 1; if(data) { if((miss = (pmdepmissing_t *)malloc(sizeof(pmdepmissing_t))) == NULL) { _alpm_log(PM_LOG_ERROR, _("malloc failure: could not allocate %d bytes"), sizeof(pmdepmissing_t)); FREELIST(*data); pm_errno = PM_ERR_MEMORY; ret = -1; goto cleanup; } *miss = *(pmdepmissing_t *)i->data; *data = alpm_list_add(*data, miss); } } } if(errorout) { pm_errno = PM_ERR_CONFLICTING_DEPS; ret = -1; goto cleanup; } FREELIST(deps); FREELIST(asked); } EVENT(trans, PM_TRANS_EVT_INTERCONFLICTS_DONE, NULL, NULL); } alpm_list_free(list); list = NULL; /* XXX: this fails for cases where a requested package wants * a dependency that conflicts with an older version of * the package. It will be removed from final, and the user * has to re-request it to get it installed properly. * * Not gonna happen very often, but should be dealt with... */ if(!(trans->flags & PM_TRANS_FLAG_NODEPS)) { /* Check dependencies of packages in rmtargs and make sure * we won't be breaking anything by removing them. * If a broken dep is detected, make sure it's not from a * package that's in our final (upgrade) list. */ /*EVENT(trans, PM_TRANS_EVT_CHECKDEPS_DONE, NULL, NULL);*/ for(i = trans->packages; i; i = i->next) { pmsyncpkg_t *sync = i->data; if(sync->type == PM_SYNC_TYPE_REPLACE) { for(j = sync->data; j; j = j->next) { list = alpm_list_add(list, j->data); } } } if(list) { _alpm_log(PM_LOG_DEBUG, _("checking dependencies of packages designated for removal")); deps = _alpm_checkdeps(trans, db_local, PM_TRANS_TYPE_REMOVE, list); if(deps) { int errorout = 0; for(i = deps; i; i = i->next) { pmdepmissing_t *miss = i->data; if(!_alpm_sync_find(trans->packages, miss->depend.name)) { int pfound = 0; alpm_list_t *k; /* If miss->depend.name depends on something that miss->target and a * package in final both provide, then it's okay... */ pmpkg_t *leavingp = _alpm_db_get_pkgfromcache(db_local, miss->target); pmpkg_t *conflictp = _alpm_db_get_pkgfromcache(db_local, miss->depend.name); if(!leavingp || !conflictp) { _alpm_log(PM_LOG_ERROR, _("something has gone horribly wrong")); ret = -1; goto cleanup; } /* Look through the upset package's dependencies and try to match one up * to a provisio from the package we want to remove */ for(k = alpm_pkg_get_depends(conflictp); k && !pfound; k = k->next) { alpm_list_t *m; for(m = alpm_pkg_get_provides(leavingp); m && !pfound; m = m->next) { if(!strcmp(k->data, m->data)) { /* Found a match -- now look through final for a package that * provides the same thing. If none are found, then it truly * is an unresolvable conflict. */ alpm_list_t *n, *o; for(n = trans->packages; n && !pfound; n = n->next) { pmsyncpkg_t *sp = n->data; pmpkg_t *sppkg = sp->pkg; for(o = alpm_pkg_get_provides(sppkg); o && !pfound; o = o->next) { if(!strcmp(m->data, o->data)) { /* found matching provisio -- we're good to go */ _alpm_log(PM_LOG_DEBUG, _("found '%s' as a provision for '%s' -- conflict aborted"), alpm_pkg_get_name(sppkg), (char *)o->data); pfound = 1; } } } } } } if(!pfound) { if(!errorout) { errorout = 1; } if(data) { if((miss = (pmdepmissing_t *)malloc(sizeof(pmdepmissing_t))) == NULL) { _alpm_log(PM_LOG_ERROR, _("malloc failure: could not allocate %d bytes"), sizeof(pmdepmissing_t)); FREELIST(*data); pm_errno = PM_ERR_MEMORY; ret = -1; goto cleanup; } *miss = *(pmdepmissing_t *)i->data; *data = alpm_list_add(*data, miss); } } } } if(errorout) { pm_errno = PM_ERR_UNSATISFIED_DEPS; ret = -1; goto cleanup; } FREELIST(deps); } } /*EVENT(trans, PM_TRANS_EVT_CHECKDEPS_DONE, NULL, NULL);*/ } #ifndef __sun__ /* check for free space only in case the packages will be extracted */ if(!(trans->flags & PM_TRANS_FLAG_NOCONFLICTS)) { if(_alpm_check_freespace(trans, data) == -1) { /* pm_errno is set by check_freespace */ ret = -1; goto cleanup; } } #endif cleanup: alpm_list_free(list); alpm_list_free(trail); FREELIST(asked); return(ret); } int _alpm_sync_commit(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t **data) { alpm_list_t *i, *j, *files = NULL; pmtrans_t *tr = NULL; int replaces = 0, retval = 0; char ldir[PATH_MAX]; int varcache = 1; ALPM_LOG_FUNC; ASSERT(db_local != NULL, RET_ERR(PM_ERR_DB_NULL, -1)); ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1)); trans->state = STATE_DOWNLOADING; /* group sync records by repository and download */ snprintf(ldir, PATH_MAX, "%s%s", handle->root, handle->cachedir); for(i = handle->dbs_sync; i; i = i->next) { pmdb_t *current = i->data; for(j = trans->packages; j; j = j->next) { pmsyncpkg_t *sync = j->data; pmpkg_t *spkg = sync->pkg; pmdb_t *dbs = spkg->data; if(current == dbs) { const char *fname = NULL; char path[PATH_MAX]; fname = alpm_pkg_get_filename(spkg); if(trans->flags & PM_TRANS_FLAG_PRINTURIS) { EVENT(trans, PM_TRANS_EVT_PRINTURI, (char *)alpm_db_get_url(current), (char *)fname); } else { struct stat buf; snprintf(path, PATH_MAX, "%s/%s", ldir, fname); if(stat(path, &buf)) { /* file is not in the cache dir, so add it to the list */ files = alpm_list_add(files, strdup(fname)); } else { _alpm_log(PM_LOG_DEBUG, _("%s is already in the cache\n"), fname); } } } } if(files) { struct stat buf; EVENT(trans, PM_TRANS_EVT_RETRIEVE_START, current->treename, NULL); if(stat(ldir, &buf)) { /* no cache directory.... try creating it */ _alpm_log(PM_LOG_WARNING, _("no %s cache exists, creating...\n"), ldir); alpm_logaction(_("warning: no %s cache exists, creating..."), ldir); if(_alpm_makepath(ldir)) { /* couldn't mkdir the cache directory, so fall back to /tmp and unlink * the package afterwards. */ _alpm_log(PM_LOG_WARNING, _("couldn't create package cache, using /tmp instead\n")); alpm_logaction(_("warning: couldn't create package cache, using /tmp instead")); snprintf(ldir, PATH_MAX, "%stmp", alpm_option_get_root()); alpm_option_set_cachedir(ldir); varcache = 0; } } if(_alpm_downloadfiles(current->servers, ldir, files)) { _alpm_log(PM_LOG_WARNING, _("failed to retrieve some files from %s\n"), current->treename); RET_ERR(PM_ERR_RETRIEVE, -1); } FREELIST(files); } } if(trans->flags & PM_TRANS_FLAG_PRINTURIS) { return(0); } /* Check integrity of files */ EVENT(trans, PM_TRANS_EVT_INTEGRITY_START, NULL, NULL); for(i = trans->packages; i; i = i->next) { pmsyncpkg_t *sync = i->data; pmpkg_t *spkg = sync->pkg; char str[PATH_MAX]; const char *pkgname; char *md5sum1, *md5sum2, *sha1sum1, *sha1sum2; char *ptr=NULL; pkgname = alpm_pkg_get_filename(spkg); md5sum1 = spkg->md5sum; sha1sum1 = spkg->sha1sum; if((md5sum1 == NULL) && (sha1sum1 == NULL)) { /* TODO wtf is this? malloc'd strings for error messages? */ if((ptr = (char *)malloc(512)) == NULL) { RET_ERR(PM_ERR_MEMORY, -1); } snprintf(ptr, 512, _("can't get md5 or sha1 checksum for package %s\n"), pkgname); *data = alpm_list_add(*data, ptr); retval = 1; continue; } snprintf(str, PATH_MAX, "%s%s%s", handle->root, handle->cachedir, pkgname); md5sum2 = _alpm_MDFile(str); sha1sum2 = _alpm_SHAFile(str); if(md5sum2 == NULL && sha1sum2 == NULL) { if((ptr = (char *)malloc(512)) == NULL) { RET_ERR(PM_ERR_MEMORY, -1); } snprintf(ptr, 512, _("can't get md5 or sha1 checksum for package %s\n"), pkgname); *data = alpm_list_add(*data, ptr); retval = 1; continue; } if((strcmp(md5sum1, md5sum2) != 0) && (strcmp(sha1sum1, sha1sum2) != 0)) { int doremove=0; if((ptr = (char *)malloc(512)) == NULL) { RET_ERR(PM_ERR_MEMORY, -1); } if(trans->flags & PM_TRANS_FLAG_ALLDEPS) { doremove=1; } else { QUESTION(trans, PM_TRANS_CONV_CORRUPTED_PKG, (char *)pkgname, NULL, NULL, &doremove); } if(doremove) { char str[PATH_MAX]; snprintf(str, PATH_MAX, "%s%s%s", handle->root, handle->cachedir, pkgname); unlink(str); snprintf(ptr, 512, _("archive %s was corrupted (bad MD5 or SHA1 checksum)\n"), pkgname); } else { snprintf(ptr, 512, _("archive %s is corrupted (bad MD5 or SHA1 checksum)\n"), pkgname); } *data = alpm_list_add(*data, ptr); retval = 1; } FREE(md5sum2); FREE(sha1sum2); } if(retval) { pm_errno = PM_ERR_PKG_CORRUPTED; goto error; } EVENT(trans, PM_TRANS_EVT_INTEGRITY_DONE, NULL, NULL); if(trans->flags & PM_TRANS_FLAG_DOWNLOADONLY) { return(0); } /* remove conflicting and to-be-replaced packages */ trans->state = STATE_COMMITING; tr = _alpm_trans_new(); if(tr == NULL) { _alpm_log(PM_LOG_ERROR, _("could not create removal transaction")); pm_errno = PM_ERR_MEMORY; goto error; } if(_alpm_trans_init(tr, PM_TRANS_TYPE_REMOVE, PM_TRANS_FLAG_NODEPS, NULL, NULL, NULL) == -1) { _alpm_log(PM_LOG_ERROR, _("could not initialize the removal transaction")); goto error; } for(i = trans->packages; i; i = i->next) { pmsyncpkg_t *sync = i->data; if(sync->type == PM_SYNC_TYPE_REPLACE) { alpm_list_t *j; for(j = sync->data; j; j = j->next) { pmpkg_t *pkg = j->data; if(!_alpm_pkg_find(pkg->name, tr->packages)) { if(_alpm_trans_addtarget(tr, pkg->name) == -1) { goto error; } replaces++; } } } } if(replaces) { _alpm_log(PM_LOG_DEBUG, _("removing conflicting and to-be-replaced packages")); if(_alpm_trans_prepare(tr, data) == -1) { _alpm_log(PM_LOG_ERROR, _("could not prepare removal transaction")); goto error; } /* we want the frontend to be aware of commit details */ tr->cb_event = trans->cb_event; if(_alpm_trans_commit(tr, NULL) == -1) { _alpm_log(PM_LOG_ERROR, _("could not commit removal transaction")); goto error; } } _alpm_trans_free(tr); tr = NULL; /* install targets */ _alpm_log(PM_LOG_DEBUG, _("installing packages")); tr = _alpm_trans_new(); if(tr == NULL) { _alpm_log(PM_LOG_ERROR, _("could not create transaction")); pm_errno = PM_ERR_MEMORY; goto error; } if(_alpm_trans_init(tr, PM_TRANS_TYPE_UPGRADE, trans->flags | PM_TRANS_FLAG_NODEPS, trans->cb_event, trans->cb_conv, trans->cb_progress) == -1) { _alpm_log(PM_LOG_ERROR, _("could not initialize transaction")); goto error; } for(i = trans->packages; i; i = i->next) { pmsyncpkg_t *sync = i->data; pmpkg_t *spkg = sync->pkg; const char *fname = NULL; char str[PATH_MAX]; fname = alpm_pkg_get_filename(spkg); snprintf(str, PATH_MAX, "%s%s%s", handle->root, handle->cachedir, fname); if(_alpm_trans_addtarget(tr, str) == -1) { goto error; } /* using alpm_list_last() is ok because addtarget() adds the new target at the * end of the tr->packages list */ spkg = alpm_list_last(tr->packages)->data; if(sync->type == PM_SYNC_TYPE_DEPEND) { spkg->reason = PM_PKG_REASON_DEPEND; } } if(_alpm_trans_prepare(tr, data) == -1) { _alpm_log(PM_LOG_ERROR, _("could not prepare transaction")); /* pm_errno is set by trans_prepare */ goto error; } if(_alpm_trans_commit(tr, NULL) == -1) { _alpm_log(PM_LOG_ERROR, _("could not commit transaction")); goto error; } _alpm_trans_free(tr); tr = NULL; /* propagate replaced packages' requiredby fields to their new owners */ if(replaces) { _alpm_log(PM_LOG_DEBUG, _("updating database for replaced packages' dependencies")); for(i = trans->packages; i; i = i->next) { pmsyncpkg_t *sync = i->data; if(sync->type == PM_SYNC_TYPE_REPLACE) { alpm_list_t *j; pmpkg_t *new = _alpm_db_get_pkgfromcache(db_local, alpm_pkg_get_name(sync->pkg)); for(j = sync->data; j; j = j->next) { alpm_list_t *k; pmpkg_t *old = j->data; /* merge lists */ for(k = alpm_pkg_get_requiredby(old); k; k = k->next) { if(!alpm_list_find_str(alpm_pkg_get_requiredby(new), k->data)) { /* replace old's name with new's name in the requiredby's dependency list */ alpm_list_t *m; pmpkg_t *depender = _alpm_db_get_pkgfromcache(db_local, k->data); if(depender == NULL) { /* If the depending package no longer exists in the local db, * then it must have ALSO conflicted with sync->pkg. If * that's the case, then we don't have anything to propagate * here. */ continue; } for(m = alpm_pkg_get_depends(depender); m; m = m->next) { if(!strcmp(m->data, alpm_pkg_get_name(old))) { FREE(m->data); m->data = strdup(alpm_pkg_get_name(new)); } } if(_alpm_db_write(db_local, depender, INFRQ_DEPENDS) == -1) { _alpm_log(PM_LOG_ERROR, _("could not update requiredby for database entry %s-%s"), alpm_pkg_get_name(new), alpm_pkg_get_version(new)); } /* add the new requiredby */ new->requiredby = alpm_list_add(alpm_pkg_get_requiredby(new), strdup(k->data)); } } } if(_alpm_db_write(db_local, new, INFRQ_DEPENDS) == -1) { _alpm_log(PM_LOG_ERROR, _("could not update new database entry %s-%s"), alpm_pkg_get_name(new), alpm_pkg_get_version(new)); } } } } if(!varcache && !(trans->flags & PM_TRANS_FLAG_DOWNLOADONLY)) { /* delete packages */ for(i = files; i; i = i->next) { unlink(i->data); } } /* run ldconfig if it exists */ if(handle->trans->state != STATE_INTERRUPTED) { _alpm_log(PM_LOG_DEBUG, _("running \"ldconfig -r %s\""), handle->root); _alpm_ldconfig(handle->root); } return(0); error: _alpm_trans_free(tr); tr = NULL; /* commiting failed, so this is still just a prepared transaction */ trans->state = STATE_PREPARED; return(-1); } pmsyncpkg_t *_alpm_sync_find(alpm_list_t *syncpkgs, const char* pkgname) { alpm_list_t *i; for(i = syncpkgs; i; i = i->next) { pmsyncpkg_t *syncpkg = i->data; if(!syncpkg) { continue; } pmpkg_t *pkg = alpm_sync_get_pkg(syncpkg); if(strcmp(alpm_pkg_get_name(pkg), pkgname) == 0) { _alpm_log(PM_LOG_DEBUG, _("found package '%s-%s' in sync"), alpm_pkg_get_name(pkg), alpm_pkg_get_version(pkg)); return(syncpkg); } } _alpm_log(PM_LOG_DEBUG, _("package '%s' not found in sync"), pkgname); return(NULL); /* not found */ } pmsynctype_t SYMEXPORT alpm_sync_get_type(pmsyncpkg_t *sync) { /* Sanity checks */ ASSERT(sync != NULL, return(-1)); return sync->type; } pmpkg_t SYMEXPORT *alpm_sync_get_pkg(pmsyncpkg_t *sync) { /* Sanity checks */ ASSERT(sync != NULL, return(NULL)); return sync->pkg; } void SYMEXPORT *alpm_sync_get_data(pmsyncpkg_t *sync) { /* Sanity checks */ ASSERT(sync != NULL, return(NULL)); return sync->data; } /* vim: set ts=2 sw=2 noet: */