tagdb_util.lc

#include <assert.h>
#include "log.h"
#include "tag.h"
#include "tagdb.h"
#include "set_ops.h"
#include "tagdb.h"
#include "tagdb_util.h"
#include "util.h"

GList *_tag_intersection(TagDB *db, tagdb_key_t key);
GList *get_tags_list (TagDB *db, tagdb_key_t key)
{
    %(log);

    if (key_is_empty(key))
    {
        return tagdb_tags(db);
    }

    GList *tags = _tag_intersection(db, key);
    GList *res = NULL;

    LL(tags, it)
    {
        Tag *t = retrieve_tag(db, TO_S(it->data));
        assert(t != NULL);
        res = g_list_prepend(res, t);
    } LL_END;
    g_list_free(tags);
    return res;
}

GList *_tag_intersection(TagDB *db, tagdb_key_t key)
{
    int skip = 1;
    GList *res = NULL;
    KL(key, i)
    {
        file_id_t tid = key_ref(key, i);
        GList *this_drawer = file_cabinet_get_drawer_tags(db->files, tid);
        this_drawer = g_list_sort(this_drawer, (GCompareFunc) long_cmp);

        GList *tmp = NULL;
        if (skip)
        {
            tmp = g_list_copy(this_drawer);
        }
        else
        {
            tmp = g_list_intersection(res, this_drawer, (GCompareFunc) long_cmp);
        }

        g_list_free(this_drawer);
        g_list_free(res);
        res = tmp;
        skip = 0;
    } KL_END;

    return res;
}
/* Gets all of the files with the given tags
   as well as all of the tags below this one
   in the tree */
GList *get_files_list (TagDB *db, tagdb_key_t key)
{
    GList *res = NULL;
    int skip = 1;

    if (key_is_empty(key))
    {
        debug("Getting untagged files");
        res = tagdb_untagged_items(db);
    }
    else
    {
        KL(key, i)
        {
            GList *tmp = NULL;
            GList *files = NULL;
            files = file_cabinet_get_drawer_l(db->files, key_ref(key, i));
            files = g_list_sort(files, (GCompareFunc) file_id_cmp);

            if (skip)
            {
                tmp = g_list_copy(files);
            }
            else
            {
                tmp = g_list_intersection(res, files, (GCompareFunc) file_id_cmp);
            }

            g_list_free(res);
            g_list_free(files);
            res = tmp;
            skip = 0;
        } KL_END;
    }

    return res;
}