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file list sort: remove duplicate directory entries

Browse source 
Can happen when merging multiple packages. But make sure they actually
are duplicates.

Signed-off-by: David Oberhollenzer <goliath@infraroot.at>
This commit is contained in:
David Oberhollenzer 2019-04-18 11:16:44 +02:00
parent 96d4d353d4
commit 00db5541e9
1 changed files with 30 additions and 0 deletions
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30
lib/filelist/image_entry_sort.c
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@ -68,6 +68,34 @@ static image_entry_t *insert_sorted(image_entry_t *list, image_entry_t *ent)
return list;
}
static void remove_duplicates(image_entry_t *list)
{
image_entry_t *it = list, *old;
int equal;
if (it == NULL)
return;
while (it->next != NULL) {
equal = 0;
if (S_ISDIR(it->mode) && S_ISDIR(it->next->mode)) {
equal = (strcmp(it->name, it->next->name) == 0);
equal = equal && (it->mode == it->next->mode);
equal = equal && (it->uid == it->next->uid);
equal = equal && (it->gid == it->next->gid);
}
if (equal) {
old = it->next;
it->next = old->next;
image_entry_free(old);
} else {
it = it->next;
}
}
}
image_entry_t *image_entry_sort(image_entry_t *list)
{
image_entry_t *sorted = NULL, *ent;
@ -79,5 +107,7 @@ image_entry_t *image_entry_sort(image_entry_t *list)
sorted = insert_sorted(sorted, ent);
}
remove_duplicates(sorted);
return sorted;
}