/* These parameters are messy. We check if this package, given a list of * targets and a db is safe to remove. We do NOT remove it if it is in the * target list, or if if the package was explictly installed and * include_explicit == 0 */ static int can_remove_package(pmdb_t *db, pmpkg_t *pkg, alpm_list_t *targets, int include_explicit) { alpm_list_t *i; if(_alpm_pkg_find(targets, alpm_pkg_get_name(pkg))) { return 0; } if(!include_explicit) { /* see if it was explicitly installed */ if(alpm_pkg_get_reason(pkg) == PM_PKG_REASON_EXPLICIT) { _alpm_log(db->handle, PM_LOG_DEBUG, "excluding %s -- explicitly installed\n", alpm_pkg_get_name(pkg)); return 0; } } /* TODO: checkdeps could be used here, it handles multiple providers * better, but that also makes it slower. * Also this would require to first add the package to the targets list, * then call checkdeps with it, then remove the package from the targets list * if checkdeps detected it would break something */ /* see if other packages need it */ for(i = _alpm_db_get_pkgcache(db); i; i = i->next) { pmpkg_t *lpkg = i->data; if(_alpm_dep_edge(lpkg, pkg) && !_alpm_pkg_find(targets, lpkg->name)) { return 0; } } /* it's ok to remove */ return 1; }
/** Find group members across a list of databases. * If a member exists in several databases, only the first database is used. * IgnorePkg is also handled. * @param dbs the list of alpm_db_t * * @pram name the name of the group * @return the list of alpm_pkg_t * (caller is responsible for alpm_list_free) */ alpm_list_t SYMEXPORT *alpm_find_group_pkgs(alpm_list_t *dbs, const char *name) { alpm_list_t *i, *j, *pkgs = NULL, *ignorelist = NULL; for(i = dbs; i; i = i->next) { alpm_db_t *db = i->data; alpm_group_t *grp = alpm_db_readgroup(db, name); if(!grp) continue; for(j = grp->packages; j; j = j->next) { alpm_pkg_t *pkg = j->data; if(_alpm_pkg_find(ignorelist, alpm_pkg_get_name(pkg))) { continue; } if(_alpm_pkg_should_ignore(db->handle, pkg)) { ignorelist = alpm_list_add(ignorelist, pkg); int install = 0; QUESTION(db->handle->trans, ALPM_TRANS_CONV_INSTALL_IGNOREPKG, pkg, NULL, NULL, &install); if(!install) continue; } if(!_alpm_pkg_find(pkgs, alpm_pkg_get_name(pkg))) { pkgs = alpm_list_add(pkgs, pkg); } } } alpm_list_free(ignorelist); return pkgs; }
/** * Computes resolvable dependencies for a given package and adds that package * and those resolvable dependencies to a list. * * @param handle the context handle * @param localpkgs is the list of local packages * @param pkg is the package to resolve * @param packages is a pointer to a list of packages which will be * searched first for any dependency packages needed to complete the * resolve, and to which will be added any [pkg] and all of its * dependencies not already on the list * @param remove is the set of packages which will be removed in this * transaction * @param data returns the dependency which could not be satisfied in the * event of an error * @return 0 on success, with [pkg] and all of its dependencies not already on * the [*packages] list added to that list, or -1 on failure due to an * unresolvable dependency, in which case the [*packages] list will be * unmodified by this function */ int _alpm_resolvedeps(pmhandle_t *handle, alpm_list_t *localpkgs, pmpkg_t *pkg, alpm_list_t *preferred, alpm_list_t **packages, alpm_list_t *remove, alpm_list_t **data) { int ret = 0; alpm_list_t *i, *j; alpm_list_t *targ; alpm_list_t *deps = NULL; alpm_list_t *packages_copy; if(_alpm_pkg_find(*packages, pkg->name) != NULL) { return 0; } /* Create a copy of the packages list, so that it can be restored on error */ packages_copy = alpm_list_copy(*packages); /* [pkg] has not already been resolved into the packages list, so put it on that list */ *packages = alpm_list_add(*packages, pkg); _alpm_log(handle, PM_LOG_DEBUG, "started resolving dependencies\n"); for(i = alpm_list_last(*packages); i; i = i->next) { pmpkg_t *tpkg = i->data; targ = alpm_list_add(NULL, tpkg); deps = alpm_checkdeps(handle, localpkgs, remove, targ, 0); alpm_list_free(targ); for(j = deps; j; j = j->next) { pmdepmissing_t *miss = j->data; pmdepend_t *missdep = miss->depend; /* check if one of the packages in the [*packages] list already satisfies * this dependency */ if(find_dep_satisfier(*packages, missdep)) { _alpm_depmiss_free(miss); continue; } /* check if one of the packages in the [preferred] list already satisfies * this dependency */ pmpkg_t *spkg = find_dep_satisfier(preferred, missdep); if(!spkg) { /* find a satisfier package in the given repositories */ spkg = resolvedep(handle, missdep, handle->dbs_sync, *packages, 0); } if(!spkg) { handle->pm_errno = PM_ERR_UNSATISFIED_DEPS; char *missdepstring = alpm_dep_compute_string(missdep); _alpm_log(handle, PM_LOG_WARNING, _("cannot resolve \"%s\", a dependency of \"%s\"\n"), missdepstring, tpkg->name); free(missdepstring); if(data) { *data = alpm_list_add(*data, miss); } ret = -1; } else { _alpm_log(handle, PM_LOG_DEBUG, "pulling dependency %s (needed by %s)\n", alpm_pkg_get_name(spkg), alpm_pkg_get_name(tpkg)); *packages = alpm_list_add(*packages, spkg); _alpm_depmiss_free(miss); } } alpm_list_free(deps); } if(ret != 0) { alpm_list_free(*packages); *packages = packages_copy; } else { alpm_list_free(packages_copy); } _alpm_log(handle, PM_LOG_DEBUG, "finished resolving dependencies\n"); return ret; }
/** * helper function for resolvedeps: search for dep satisfier in dbs * * @param handle the context handle * @param dep is the dependency to search for * @param dbs are the databases to search * @param excluding are the packages to exclude from the search * @param prompt if true, will cause an unresolvable dependency to issue an * interactive prompt asking whether the package should be removed from * the transaction or the transaction aborted; if false, simply returns * an error code without prompting * @return the resolved package **/ static pmpkg_t *resolvedep(pmhandle_t *handle, pmdepend_t *dep, alpm_list_t *dbs, alpm_list_t *excluding, int prompt) { alpm_list_t *i, *j; int ignored = 0; alpm_list_t *providers = NULL; int count; /* 1. literals */ for(i = dbs; i; i = i->next) { pmpkg_t *pkg = _alpm_db_get_pkgfromcache(i->data, dep->name); if(pkg && _alpm_depcmp(pkg, dep) && !_alpm_pkg_find(excluding, pkg->name)) { if(_alpm_pkg_should_ignore(handle, pkg)) { int install = 0; if(prompt) { QUESTION(handle->trans, PM_TRANS_CONV_INSTALL_IGNOREPKG, pkg, NULL, NULL, &install); } else { _alpm_log(handle, PM_LOG_WARNING, _("ignoring package %s-%s\n"), pkg->name, pkg->version); } if(!install) { ignored = 1; continue; } } return pkg; } } /* 2. satisfiers (skip literals here) */ for(i = dbs; i; i = i->next) { for(j = _alpm_db_get_pkgcache(i->data); j; j = j->next) { pmpkg_t *pkg = j->data; if(_alpm_depcmp(pkg, dep) && strcmp(pkg->name, dep->name) != 0 && !_alpm_pkg_find(excluding, pkg->name)) { if(_alpm_pkg_should_ignore(handle, pkg)) { int install = 0; if(prompt) { QUESTION(handle->trans, PM_TRANS_CONV_INSTALL_IGNOREPKG, pkg, NULL, NULL, &install); } else { _alpm_log(handle, PM_LOG_WARNING, _("ignoring package %s-%s\n"), pkg->name, pkg->version); } if(!install) { ignored = 1; continue; } } _alpm_log(handle, PM_LOG_DEBUG, "provider found (%s provides %s)\n", pkg->name, dep->name); providers = alpm_list_add(providers, pkg); /* keep looking for other providers in the all dbs */ } } } /* first check if one provider is already installed locally */ for(i = providers; i; i = i->next) { pmpkg_t *pkg = i->data; if(_alpm_pkghash_find(_alpm_db_get_pkgcache_hash(handle->db_local), pkg->name)) { alpm_list_free(providers); return pkg; } } count = alpm_list_count(providers); if(count >= 1) { /* default to first provider if there is no QUESTION callback */ int index = 0; if(count > 1) { /* if there is more than one provider, we ask the user */ QUESTION(handle->trans, PM_TRANS_CONV_SELECT_PROVIDER, providers, dep, NULL, &index); } if(index >= 0 && index < count) { pmpkg_t *pkg = alpm_list_getdata(alpm_list_nth(providers, index)); alpm_list_free(providers); return pkg; } alpm_list_free(providers); providers = NULL; } if(ignored) { /* resolvedeps will override these */ handle->pm_errno = PM_ERR_PKG_IGNORED; } else { handle->pm_errno = PM_ERR_PKG_NOT_FOUND; } return NULL; }
/** Checks dependencies and returns missing ones in a list. * Dependencies can include versions with depmod operators. * @param handle the context handle * @param pkglist the list of local packages * @param remove an alpm_list_t* of packages to be removed * @param upgrade an alpm_list_t* of packages to be upgraded (remove-then-upgrade) * @param reversedeps handles the backward dependencies * @return an alpm_list_t* of pmdepmissing_t pointers. */ alpm_list_t SYMEXPORT *alpm_checkdeps(pmhandle_t *handle, alpm_list_t *pkglist, alpm_list_t *remove, alpm_list_t *upgrade, int reversedeps) { alpm_list_t *i, *j; alpm_list_t *targets, *dblist = NULL, *modified = NULL; alpm_list_t *baddeps = NULL; int nodepversion; CHECK_HANDLE(handle, return NULL); targets = alpm_list_join(alpm_list_copy(remove), alpm_list_copy(upgrade)); for(i = pkglist; i; i = i->next) { pmpkg_t *pkg = i->data; if(_alpm_pkg_find(targets, pkg->name)) { modified = alpm_list_add(modified, pkg); } else { dblist = alpm_list_add(dblist, pkg); } } alpm_list_free(targets); nodepversion = no_dep_version(handle); /* look for unsatisfied dependencies of the upgrade list */ for(i = upgrade; i; i = i->next) { pmpkg_t *tp = i->data; _alpm_log(handle, PM_LOG_DEBUG, "checkdeps: package %s-%s\n", alpm_pkg_get_name(tp), alpm_pkg_get_version(tp)); for(j = alpm_pkg_get_depends(tp); j; j = j->next) { pmdepend_t *depend = j->data; depend = filtered_depend(depend, nodepversion); /* 1. we check the upgrade list */ /* 2. we check database for untouched satisfying packages */ if(!find_dep_satisfier(upgrade, depend) && !find_dep_satisfier(dblist, depend)) { /* Unsatisfied dependency in the upgrade list */ pmdepmissing_t *miss; char *missdepstring = alpm_dep_compute_string(depend); _alpm_log(handle, PM_LOG_DEBUG, "checkdeps: missing dependency '%s' for package '%s'\n", missdepstring, alpm_pkg_get_name(tp)); free(missdepstring); miss = depmiss_new(alpm_pkg_get_name(tp), depend, NULL); baddeps = alpm_list_add(baddeps, miss); } release_filtered_depend(depend, nodepversion); } } if(reversedeps) { /* reversedeps handles the backwards dependencies, ie, * the packages listed in the requiredby field. */ for(i = dblist; i; i = i->next) { pmpkg_t *lp = i->data; for(j = alpm_pkg_get_depends(lp); j; j = j->next) { pmdepend_t *depend = j->data; depend = filtered_depend(depend, nodepversion); pmpkg_t *causingpkg = find_dep_satisfier(modified, depend); /* we won't break this depend, if it is already broken, we ignore it */ /* 1. check upgrade list for satisfiers */ /* 2. check dblist for satisfiers */ if(causingpkg && !find_dep_satisfier(upgrade, depend) && !find_dep_satisfier(dblist, depend)) { pmdepmissing_t *miss; char *missdepstring = alpm_dep_compute_string(depend); _alpm_log(handle, PM_LOG_DEBUG, "checkdeps: transaction would break '%s' dependency of '%s'\n", missdepstring, alpm_pkg_get_name(lp)); free(missdepstring); miss = depmiss_new(lp->name, depend, alpm_pkg_get_name(causingpkg)); baddeps = alpm_list_add(baddeps, miss); } release_filtered_depend(depend, nodepversion); } } } alpm_list_free(modified); alpm_list_free(dblist); return baddeps; }
/** Search for packages to upgrade and add them to the transaction. */ int SYMEXPORT alpm_sync_sysupgrade(alpm_handle_t *handle, int enable_downgrade) { alpm_list_t *i, *j, *k; alpm_trans_t *trans; alpm_db_t *db_local; alpm_list_t *dbs_sync; CHECK_HANDLE(handle, return -1); trans = handle->trans; db_local = handle->db_local; dbs_sync = handle->dbs_sync; ASSERT(trans != NULL, RET_ERR(handle, ALPM_ERR_TRANS_NULL, -1)); ASSERT(trans->state == STATE_INITIALIZED, RET_ERR(handle, ALPM_ERR_TRANS_NOT_INITIALIZED, -1)); _alpm_log(handle, ALPM_LOG_DEBUG, "checking for package upgrades\n"); for(i = _alpm_db_get_pkgcache(db_local); i; i = i->next) { alpm_pkg_t *lpkg = i->data; if(_alpm_pkg_find(trans->add, lpkg->name)) { _alpm_log(handle, ALPM_LOG_DEBUG, "%s is already in the target list -- skipping\n", lpkg->name); continue; } /* Search for literal then replacers in each sync database. * If found, don't check other databases */ for(j = dbs_sync; j; j = j->next) { alpm_db_t *sdb = j->data; /* Check sdb */ alpm_pkg_t *spkg = _alpm_db_get_pkgfromcache(sdb, lpkg->name); if(spkg) { /* 1. literal was found in sdb */ int cmp = _alpm_pkg_compare_versions(spkg, lpkg); if(cmp > 0) { _alpm_log(handle, ALPM_LOG_DEBUG, "new version of '%s' found (%s => %s)\n", lpkg->name, lpkg->version, spkg->version); /* check IgnorePkg/IgnoreGroup */ if(_alpm_pkg_should_ignore(handle, spkg) || _alpm_pkg_should_ignore(handle, lpkg)) { _alpm_log(handle, ALPM_LOG_WARNING, _("%s: ignoring package upgrade (%s => %s)\n"), lpkg->name, lpkg->version, spkg->version); } else { _alpm_log(handle, ALPM_LOG_DEBUG, "adding package %s-%s to the transaction targets\n", spkg->name, spkg->version); trans->add = alpm_list_add(trans->add, spkg); } } else if(cmp < 0) { if(enable_downgrade) { /* check IgnorePkg/IgnoreGroup */ if(_alpm_pkg_should_ignore(handle, spkg) || _alpm_pkg_should_ignore(handle, lpkg)) { _alpm_log(handle, ALPM_LOG_WARNING, _("%s: ignoring package downgrade (%s => %s)\n"), lpkg->name, lpkg->version, spkg->version); } else { _alpm_log(handle, ALPM_LOG_WARNING, _("%s: downgrading from version %s to version %s\n"), lpkg->name, lpkg->version, spkg->version); trans->add = alpm_list_add(trans->add, spkg); } } else { _alpm_log(handle, ALPM_LOG_WARNING, _("%s: local (%s) is newer than %s (%s)\n"), lpkg->name, lpkg->version, sdb->treename, spkg->version); } } /* jump to next local package */ break; } else { /* 2. search for replacers in sdb */ int found = 0; for(k = _alpm_db_get_pkgcache(sdb); k; k = k->next) { spkg = k->data; if(alpm_list_find_str(alpm_pkg_get_replaces(spkg), lpkg->name)) { found = 1; /* check IgnorePkg/IgnoreGroup */ if(_alpm_pkg_should_ignore(handle, spkg) || _alpm_pkg_should_ignore(handle, lpkg)) { _alpm_log(handle, ALPM_LOG_WARNING, _("ignoring package replacement (%s-%s => %s-%s)\n"), lpkg->name, lpkg->version, spkg->name, spkg->version); continue; } int doreplace = 0; QUESTION(trans, ALPM_TRANS_CONV_REPLACE_PKG, lpkg, spkg, sdb->treename, &doreplace); if(!doreplace) { continue; } /* If spkg is already in the target list, we append lpkg to spkg's * removes list */ alpm_pkg_t *tpkg = _alpm_pkg_find(trans->add, spkg->name); if(tpkg) { /* sanity check, multiple repos can contain spkg->name */ if(tpkg->origin_data.db != sdb) { _alpm_log(handle, ALPM_LOG_WARNING, _("cannot replace %s by %s\n"), lpkg->name, spkg->name); continue; } _alpm_log(handle, ALPM_LOG_DEBUG, "appending %s to the removes list of %s\n", lpkg->name, tpkg->name); tpkg->removes = alpm_list_add(tpkg->removes, lpkg); /* check the to-be-replaced package's reason field */ if(alpm_pkg_get_reason(lpkg) == ALPM_PKG_REASON_EXPLICIT) { tpkg->reason = ALPM_PKG_REASON_EXPLICIT; } } else { /* add spkg to the target list */ /* copy over reason */ spkg->reason = alpm_pkg_get_reason(lpkg); spkg->removes = alpm_list_add(NULL, lpkg); _alpm_log(handle, ALPM_LOG_DEBUG, "adding package %s-%s to the transaction targets\n", spkg->name, spkg->version); trans->add = alpm_list_add(trans->add, spkg); } } } if(found) { break; /* jump to next local package */ } } } } return 0; }
int _alpm_sync_prepare(alpm_handle_t *handle, alpm_list_t **data) { alpm_list_t *i, *j; alpm_list_t *deps = NULL; alpm_list_t *unresolvable = NULL; alpm_list_t *remove = NULL; int ret = 0; alpm_trans_t *trans = handle->trans; if(data) { *data = NULL; } /* ensure all sync database are valid since we will be using them */ for(i = handle->dbs_sync; i; i = i->next) { const alpm_db_t *db = i->data; if(!(db->status & DB_STATUS_VALID)) { RET_ERR(handle, ALPM_ERR_DB_INVALID, -1); } } if(!(trans->flags & ALPM_TRANS_FLAG_NODEPS)) { alpm_list_t *resolved = NULL; /* target list after resolvedeps */ /* Build up list by repeatedly resolving each transaction package */ /* Resolve targets dependencies */ EVENT(trans, ALPM_TRANS_EVT_RESOLVEDEPS_START, NULL, NULL); _alpm_log(handle, ALPM_LOG_DEBUG, "resolving target's dependencies\n"); /* build remove list for resolvedeps */ for(i = trans->add; i; i = i->next) { alpm_pkg_t *spkg = i->data; for(j = spkg->removes; j; j = j->next) { remove = alpm_list_add(remove, j->data); } } /* Compute the fake local database for resolvedeps (partial fix for the * phonon/qt issue) */ alpm_list_t *localpkgs = alpm_list_diff(_alpm_db_get_pkgcache(handle->db_local), trans->add, _alpm_pkg_cmp); /* Resolve packages in the transaction one at a time, in addition building up a list of packages which could not be resolved. */ for(i = trans->add; i; i = i->next) { alpm_pkg_t *pkg = i->data; if(_alpm_resolvedeps(handle, localpkgs, pkg, trans->add, &resolved, remove, data) == -1) { unresolvable = alpm_list_add(unresolvable, pkg); } /* Else, [resolved] now additionally contains [pkg] and all of its dependencies not already on the list */ } alpm_list_free(localpkgs); /* If there were unresolvable top-level packages, prompt the user to see if they'd like to ignore them rather than failing the sync */ if(unresolvable != NULL) { int remove_unresolvable = 0; QUESTION(trans, ALPM_TRANS_CONV_REMOVE_PKGS, unresolvable, NULL, NULL, &remove_unresolvable); if(remove_unresolvable) { /* User wants to remove the unresolvable packages from the transaction. The packages will be removed from the actual transaction when the transaction packages are replaced with a dependency-reordered list below */ handle->pm_errno = 0; /* pm_errno was set by resolvedeps */ if(data) { alpm_list_free_inner(*data, (alpm_list_fn_free)_alpm_depmiss_free); alpm_list_free(*data); *data = NULL; } } else { /* pm_errno is set by resolvedeps */ alpm_list_free(resolved); ret = -1; goto cleanup; } } /* Set DEPEND reason for pulled packages */ for(i = resolved; i; i = i->next) { alpm_pkg_t *pkg = i->data; if(!_alpm_pkg_find(trans->add, pkg->name)) { pkg->reason = ALPM_PKG_REASON_DEPEND; } } /* Unresolvable packages will be removed from the target list, so we free the transaction specific fields */ alpm_list_free_inner(unresolvable, (alpm_list_fn_free)_alpm_pkg_free_trans); /* re-order w.r.t. dependencies */ alpm_list_free(trans->add); trans->add = _alpm_sortbydeps(handle, resolved, 0); alpm_list_free(resolved); EVENT(trans, ALPM_TRANS_EVT_RESOLVEDEPS_DONE, NULL, NULL); } if(!(trans->flags & ALPM_TRANS_FLAG_NOCONFLICTS)) { /* check for inter-conflicts and whatnot */ EVENT(trans, ALPM_TRANS_EVT_INTERCONFLICTS_START, NULL, NULL); _alpm_log(handle, ALPM_LOG_DEBUG, "looking for conflicts\n"); /* 1. check for conflicts in the target list */ _alpm_log(handle, ALPM_LOG_DEBUG, "check targets vs targets\n"); deps = _alpm_innerconflicts(handle, trans->add); for(i = deps; i; i = i->next) { alpm_conflict_t *conflict = i->data; alpm_pkg_t *rsync, *sync, *sync1, *sync2; /* have we already removed one of the conflicting targets? */ sync1 = _alpm_pkg_find(trans->add, conflict->package1); sync2 = _alpm_pkg_find(trans->add, conflict->package2); if(!sync1 || !sync2) { continue; } _alpm_log(handle, ALPM_LOG_DEBUG, "conflicting packages in the sync list: '%s' <-> '%s'\n", conflict->package1, conflict->package2); /* if sync1 provides sync2, we remove sync2 from the targets, and vice versa */ alpm_depend_t *dep1 = _alpm_splitdep(conflict->package1); alpm_depend_t *dep2 = _alpm_splitdep(conflict->package2); if(_alpm_depcmp(sync1, dep2)) { rsync = sync2; sync = sync1; } else if(_alpm_depcmp(sync2, dep1)) { rsync = sync1; sync = sync2; } else { _alpm_log(handle, ALPM_LOG_ERROR, _("unresolvable package conflicts detected\n")); handle->pm_errno = ALPM_ERR_CONFLICTING_DEPS; ret = -1; if(data) { alpm_conflict_t *newconflict = _alpm_conflict_dup(conflict); if(newconflict) { *data = alpm_list_add(*data, newconflict); } } alpm_list_free_inner(deps, (alpm_list_fn_free)_alpm_conflict_free); alpm_list_free(deps); _alpm_dep_free(dep1); _alpm_dep_free(dep2); goto cleanup; } _alpm_dep_free(dep1); _alpm_dep_free(dep2); /* Prints warning */ _alpm_log(handle, ALPM_LOG_WARNING, _("removing '%s' from target list because it conflicts with '%s'\n"), rsync->name, sync->name); trans->add = alpm_list_remove(trans->add, rsync, _alpm_pkg_cmp, NULL); _alpm_pkg_free_trans(rsync); /* rsync is not transaction target anymore */ continue; } alpm_list_free_inner(deps, (alpm_list_fn_free)_alpm_conflict_free); alpm_list_free(deps); deps = NULL; /* 2. we check for target vs db conflicts (and resolve)*/ _alpm_log(handle, ALPM_LOG_DEBUG, "check targets vs db and db vs targets\n"); deps = _alpm_outerconflicts(handle->db_local, trans->add); for(i = deps; i; i = i->next) { alpm_conflict_t *conflict = i->data; /* if conflict->package2 (the local package) is not elected for removal, we ask the user */ int found = 0; for(j = trans->add; j && !found; j = j->next) { alpm_pkg_t *spkg = j->data; if(_alpm_pkg_find(spkg->removes, conflict->package2)) { found = 1; } } if(found) { continue; } _alpm_log(handle, ALPM_LOG_DEBUG, "package '%s' conflicts with '%s'\n", conflict->package1, conflict->package2); alpm_pkg_t *sync = _alpm_pkg_find(trans->add, conflict->package1); alpm_pkg_t *local = _alpm_db_get_pkgfromcache(handle->db_local, conflict->package2); int doremove = 0; QUESTION(trans, ALPM_TRANS_CONV_CONFLICT_PKG, conflict->package1, conflict->package2, conflict->reason, &doremove); if(doremove) { /* append to the removes list */ _alpm_log(handle, ALPM_LOG_DEBUG, "electing '%s' for removal\n", conflict->package2); sync->removes = alpm_list_add(sync->removes, local); } else { /* abort */ _alpm_log(handle, ALPM_LOG_ERROR, _("unresolvable package conflicts detected\n")); handle->pm_errno = ALPM_ERR_CONFLICTING_DEPS; ret = -1; if(data) { alpm_conflict_t *newconflict = _alpm_conflict_dup(conflict); if(newconflict) { *data = alpm_list_add(*data, newconflict); } } alpm_list_free_inner(deps, (alpm_list_fn_free)_alpm_conflict_free); alpm_list_free(deps); goto cleanup; } } EVENT(trans, ALPM_TRANS_EVT_INTERCONFLICTS_DONE, NULL, NULL); alpm_list_free_inner(deps, (alpm_list_fn_free)_alpm_conflict_free); alpm_list_free(deps); } /* Build trans->remove list */ for(i = trans->add; i; i = i->next) { alpm_pkg_t *spkg = i->data; for(j = spkg->removes; j; j = j->next) { alpm_pkg_t *rpkg = j->data; if(!_alpm_pkg_find(trans->remove, rpkg->name)) { _alpm_log(handle, ALPM_LOG_DEBUG, "adding '%s' to remove list\n", rpkg->name); trans->remove = alpm_list_add(trans->remove, _alpm_pkg_dup(rpkg)); } } } if(!(trans->flags & ALPM_TRANS_FLAG_NODEPS)) { _alpm_log(handle, ALPM_LOG_DEBUG, "checking dependencies\n"); deps = alpm_checkdeps(handle, _alpm_db_get_pkgcache(handle->db_local), trans->remove, trans->add, 1); if(deps) { handle->pm_errno = ALPM_ERR_UNSATISFIED_DEPS; ret = -1; if(data) { *data = deps; } else { alpm_list_free_inner(deps, (alpm_list_fn_free)_alpm_depmiss_free); alpm_list_free(deps); } goto cleanup; } } for(i = trans->add; i; i = i->next) { /* update download size field */ alpm_pkg_t *spkg = i->data; if(compute_download_size(spkg) != 0) { ret = -1; goto cleanup; } } cleanup: alpm_list_free(unresolvable); alpm_list_free(remove); return ret; }