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/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
* post_process.c
*
* Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
*/
#include "config.h"
#include "fstree.h"
#include <stdlib.h>
#include <stdio.h>
static void map_child_nodes(fstree_t *fs, tree_node_t *root, size_t *counter)
{
bool has_subdirs = false;
tree_node_t *it;
for (it = root->data.dir.children; it != NULL; it = it->next) {
if (S_ISDIR(it->mode)) {
has_subdirs = true;
break;
}
}
if (has_subdirs) {
for (it = root->data.dir.children; it != NULL; it = it->next) {
if (S_ISDIR(it->mode))
map_child_nodes(fs, it, counter);
}
}
for (it = root->data.dir.children; it != NULL; it = it->next) {
fs->unique_inode_count += 1;
it->inode_num = *counter;
*counter += 1;
}
}
static void sort_recursive(tree_node_t *n)
{
n->data.dir.children = tree_node_list_sort(n->data.dir.children);
for (n = n->data.dir.children; n != NULL; n = n->next) {
if (S_ISDIR(n->mode))
sort_recursive(n);
}
}
static file_info_t *file_list_dfs(tree_node_t *n)
{
if (S_ISREG(n->mode)) {
n->data.file.next = NULL;
return &n->data.file;
}
if (S_ISDIR(n->mode)) {
file_info_t *list = NULL, *last = NULL;
for (n = n->data.dir.children; n != NULL; n = n->next) {
if (list == NULL) {
list = file_list_dfs(n);
if (list == NULL)
continue;
last = list;
} else {
last->next = file_list_dfs(n);
}
while (last->next != NULL)
last = last->next;
}
return list;
}
return NULL;
}
void fstree_post_process(fstree_t *fs)
{
size_t inum = 1;
sort_recursive(fs->root);
fs->unique_inode_count = 0;
map_child_nodes(fs, fs->root, &inum);
fs->root->inode_num = inum;
fs->unique_inode_count += 1;
fs->files = file_list_dfs(fs->root);
}
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