/* 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;
}
