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xbps-bin(8): added -R option to recursively remove pkgs that were instaled automatically.

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This commit is contained in:
Juan RP
2011-01-30 08:08:34 +01:00
parent bb897da7b4
commit 7da33469cc
7 changed files with 141 additions and 40 deletions
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72
lib/package_orphans.c
View File

@ -60,15 +60,23 @@
* dictionary.
*/
struct orphan_data {
prop_array_t array;
prop_array_t orphans_user;
};
static int
find_orphan_pkg(prop_object_t obj, void *arg, bool *loop_done)
{
prop_array_t reqby, orphans = arg;
struct orphan_data *od = arg;
prop_array_t reqby;
prop_object_t obj2;
prop_object_iterator_t iter;
const char *pkgdep;
const char *pkgdep, *curpkgname;
char *pkgdepname;
unsigned int ndep = 0, cnt = 0;
bool automatic = false;
size_t i;
int rv = 0;
pkg_state_t state;
@ -82,7 +90,6 @@ find_orphan_pkg(prop_object_t obj, void *arg, bool *loop_done)
if ((rv = xbps_get_pkg_state_dictionary(obj, &state)) != 0)
return rv;
/*
* Skip packages that aren't fully installed.
*/
@ -92,39 +99,75 @@ find_orphan_pkg(prop_object_t obj, void *arg, bool *loop_done)
reqby = prop_dictionary_get(obj, "requiredby");
if (prop_object_type(reqby) != PROP_TYPE_ARRAY)
return EINVAL;
if ((cnt = prop_array_count(reqby)) == 0) {
prop_array_add(orphans, obj);
/*
* Add packages with empty "requiredby" arrays.
*/
cnt = prop_array_count(reqby);
if (cnt == 0) {
prop_array_add(od->array, obj);
return 0;
}
/*
* Add packages that only have 1 entry matching any pkgname
* object in the user supplied array of strings.
*/
if (od->orphans_user != NULL && cnt == 1) {
for (i = 0; i < prop_array_count(od->orphans_user); i++) {
prop_array_get_cstring_nocopy(od->orphans_user,
i, &curpkgname);
if (xbps_find_pkgname_in_array(reqby, curpkgname)) {
prop_array_add(od->array, obj);
return 0;
}
}
}
iter = prop_array_iterator(reqby);
if (iter == NULL)
return ENOMEM;
/*
* Iterate over the requiredby array and add current pkg
* when all pkg dependencies are already in requiredby
* or any pkgname object in the user supplied array of
* strings match.
*/
while ((obj2 = prop_object_iterator_next(iter)) != NULL) {
pkgdep = prop_string_cstring_nocopy(obj2);
if (pkgdep == NULL) {
prop_object_iterator_release(iter);
return EINVAL;
}
if (xbps_find_pkg_in_array_by_pattern(orphans, pkgdep))
if (xbps_find_pkg_in_array_by_pattern(od->array, pkgdep))
ndep++;
if (od->orphans_user == NULL)
continue;
pkgdepname = xbps_get_pkg_name(pkgdep);
assert(pkgdepname != NULL);
for (i = 0; i < prop_array_count(od->orphans_user); i++) {
prop_array_get_cstring_nocopy(od->orphans_user,
i, &curpkgname);
if (strcmp(curpkgname, pkgdepname) == 0) {
ndep++;
break;
}
}
}
prop_object_iterator_release(iter);
if (ndep != cnt)
return 0;
if (!prop_array_add(orphans, obj))
if (!prop_array_add(od->array, obj))
return EINVAL;
return 0;
}
prop_array_t
xbps_find_pkg_orphans(void)
xbps_find_pkg_orphans(prop_array_t orphans_user)
{
prop_array_t array = NULL;
prop_dictionary_t dict;
struct orphan_data od;
int rv = 0;
if ((dict = xbps_regpkgdb_dictionary_get()) == NULL)
@ -132,20 +175,23 @@ xbps_find_pkg_orphans(void)
/*
* Prepare an array with all packages previously found.
*/
if ((array = prop_array_create()) == NULL)
if ((od.array = prop_array_create()) == NULL)
goto out;
/*
* Find out all orphans by looking at the
* regpkgdb dictionary and iterate in reverse order
* in which packages were installed.
*/
od.orphans_user = orphans_user;
rv = xbps_callback_array_iter_reverse_in_dict(dict, "packages",
find_orphan_pkg, array);
find_orphan_pkg, &od);
if (rv != 0) {
errno = rv;
prop_object_release(array);
prop_object_release(od.array);
array = NULL;
goto out;
}
array = prop_array_copy(od.array);
out:
xbps_regpkgdb_dictionary_release();