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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <dirent.h>
#include <sys/stat.h>
#include "tree.h"
#include "xstd.h"
#define ANSIC_RST "\x1B[0m"
#define ANSIC_BBLU "\x1B[34;1m"
#define ANSIC_BGRN "\x1B[32;1m"
static void entries_sort(char **entries, const int size)
{
int i, j;
char *temp;
for(i = 0; i < size; i++) {
for(j = i + 1; j < size; j++) {
if(strcmp(entries[i], entries[j]) > 0)
{
temp = entries[i];
entries[i] = entries[j];
entries[j] = temp;
}
}
}
}
static int is_dir(const char *path)
{
struct stat buffer;
if(stat(path, &buffer))
return 0;
return S_ISDIR(buffer.st_mode);
}
static int count_dir_entries(const char *path)
{
int counter = 0;
DIR *dir;
struct dirent *dir_entry;
dir = opendir(path);
if(dir == NULL) {
fprintf(stderr, "opendir() failed\n");
return -1;
}
errno = 0;
while((dir_entry = readdir(dir))) {
if(dir_entry->d_name[0] == '.')
continue;
counter++;
}
if(errno) {
fprintf(stderr, "readdir() failed\n");
return -1;
}
closedir(dir);
return counter;
}
int tree(const char *path, const char *prefix)
{
DIR *main_dir;
struct dirent *temp_dirent;
char **entries;
char *pointer, *prefix_depth;
int cnt_ent, i;
cnt_ent = count_dir_entries(path);
if(cnt_ent == -1)
return 1;
entries = malloc(sizeof(char *) * cnt_ent);
main_dir = opendir(path);
if(main_dir == NULL) {
perror("opendir");
return 1;
}
i = 0;
while((temp_dirent = readdir(main_dir))) {
char *file_name = temp_dirent->d_name;
if(file_name[0] == '.')
continue;
entries[i] = malloc(sizeof(char) * (strlen(file_name) + 1));
strcpy(entries[i], file_name);
i++;
}
closedir(main_dir);
if(errno) {
perror("opendir");
return 1;
}
entries_sort(entries, cnt_ent);
for(i = 0; i < cnt_ent; i++) {
char *full_path;
if(i == cnt_ent - 1) {
pointer = "└── ";
prefix_depth = " ";
}
else {
pointer = "├── ";
prefix_depth = "│ ";
}
full_path = xstrcat(path, entries[i], "/");
if(is_dir(full_path)) {
printf("%s%s%s%s%s\n", prefix, pointer, ANSIC_BBLU,
entries[i], ANSIC_RST);
prefix_depth = xstrcat(prefix, prefix_depth, NULL);
tree(full_path, prefix_depth);
free(prefix_depth);
}
else
printf("%s%s%s\n", prefix, pointer, entries[i]);
free(entries[i]);
free(full_path);
}
free(entries);
return 0;
}
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