/* Insert a chunk of blame associated with REV starting
at token START and continuing for LENGTH tokens */
static svn_error_t *
blame_insert_range(struct blame_chain *chain,
struct rev *rev,
apr_off_t start,
apr_off_t length)
{
struct blame *head = chain->blame;
struct blame *point = blame_find(head, start);
struct blame *insert;
if (point->start == start)
{
insert = blame_create(chain, point->rev, point->start + length);
point->rev = rev;
insert->next = point->next;
point->next = insert;
}
else
{
struct blame *middle;
middle = blame_create(chain, rev, start);
insert = blame_create(chain, point->rev, start + length);
middle->next = insert;
insert->next = point->next;
point->next = middle;
}
blame_adjust(insert->next, length);
return SVN_NO_ERROR;
}
/* Insert a chunk of blame associated with DB->REV starting
at token START and continuing for LENGTH tokens */
static svn_error_t *
blame_insert_range (struct file_rev_baton *db, apr_off_t start,
apr_off_t length)
{
struct blame *head = db->blame;
struct blame *point = blame_find (head, start);
struct blame *insert;
if (point->start == start)
{
insert = blame_create (db, point->rev, point->start + length);
point->rev = db->rev;
insert->next = point->next;
point->next = insert;
}
else if (!point->next || point->next->start > start + length)
{
struct blame *middle;
middle = blame_create (db, db->rev, start);
insert = blame_create (db, point->rev, start + length);
middle->next = insert;
insert->next = point->next;
point->next = middle;
}
else
{
insert = blame_create (db, db->rev, start);
insert->next = point->next;
point->next = insert;
}
blame_adjust (insert->next, length);
return SVN_NO_ERROR;
}
/* Delete the blame associated with the region from token START to
START + LENGTH */
static svn_error_t *
blame_delete_range(struct blame_chain *chain,
apr_off_t start,
apr_off_t length)
{
struct blame *first = blame_find(chain->blame, start);
struct blame *last = blame_find(chain->blame, start + length);
struct blame *tail = last->next;
if (first != last)
{
struct blame *walk = first->next;
while (walk != last)
{
struct blame *next = walk->next;
blame_destroy(chain, walk);
walk = next;
}
first->next = last;
last->start = start;
if (first->start == start)
{
*first = *last;
blame_destroy(chain, last);
last = first;
}
}
if (tail && tail->start == last->start + length)
{
*last = *tail;
blame_destroy(chain, tail);
tail = last->next;
}
blame_adjust(tail, -length);
return SVN_NO_ERROR;
}
