ccc/file.c

267 lines
5.2 KiB
C

#include <string.h>
#include <stdlib.h>
#include <stdbool.h>
#include <libgen.h>
#include "util.h"
/* files in a link list data structure */
typedef struct file {
char *path;
char *stats;
char *type;
int color;
struct file *next;
} file;
file *files = NULL;
file *marked = NULL;
/*
* Get length of files linked list
*/
long files_len()
{
file *current = files;
int count = 0;
while (current != NULL) {
count++;
current = current->next;
}
return count;
}
/*
* Get length of marked files
*/
long marked_len()
{
file *current = marked;
int count = 0;
while (current != NULL) {
count++;
current = current->next;
}
return count;
}
void free_file(file *toremove)
{
if (toremove->type != NULL)
free(toremove->type);
if (toremove->path != NULL)
free(toremove->path);
if (toremove->stats != NULL)
free(toremove->stats);
free(toremove);
}
void clear_files()
{
file *tmp;
while (files != NULL) {
tmp = files;
files = files->next;
free_file(tmp);
}
}
void clear_marked()
{
file *tmp;
while (marked != NULL) {
tmp = marked;
files = marked->next;
free_file(tmp);
}
}
long add_file(char *filepath, char *stats, char *type, int color)
{
file *current = files;
file *new_file = memalloc(sizeof(file));
char *buf = strdup(filepath);
char *buf2 = strdup(stats);
char *buf3 = strdup(type);
int buf4 = color;
if (buf == NULL || buf2 == NULL || buf3 == NULL)
perror("ccc");
new_file->path = buf;
new_file->stats = buf2;
new_file->type = buf3;
new_file->color = buf4;
new_file->next = NULL;
if (current == NULL) {
files = new_file;
return 0;
}
long index = 1;
while (current->next != NULL) {
current = current->next;
index++;
}
current->next = new_file;
return index;
}
void remove_marked(file *marked_file)
{
/* If the head node itself is marked for removal */
if (marked == marked_file) {
marked = marked->next;
free_file(marked_file);
return;
}
/* Search for the marked file node in the list */
file* temp = marked;
while (temp != NULL && temp->next != marked_file) {
temp = temp->next;
}
/* If the marked file node is found, remove it from the list */
if (temp != NULL) {
temp->next = marked_file->next;
free_file(marked_file);
}
}
long add_marked(char *filepath, char *type)
{
file *current = marked;
file *new_file = memalloc(sizeof(file));
char *buf = strdup(filepath);
char *buf2 = strdup(type);
if (buf == NULL || buf2 == NULL) {
perror("ccc");
}
new_file->path = buf;
new_file->type = buf2;
new_file->stats = NULL;
new_file->color = 0;
new_file->next = NULL;
if (current == NULL) {
marked = new_file;
return 0;
}
long index = 1;
while (current->next != NULL) {
if (strcmp(current->path, new_file->path) == 0) {
remove_marked(current);
free_file(new_file);
return -1;
}
current = current->next;
index++;
}
if (strcmp(current->path, new_file->path) == 0){
remove_marked(current);
free_file(new_file);
return -1;
}
current->next = new_file;
return index;
}
file *get_marked(long index)
{
file *current = marked;
if (index == 0) {
return current;
}
if (index > files_len()) {
return NULL;
}
for (long i = 0; i < index; i++) {
current = current->next;
}
return current;
}
bool in_marked(char *path)
{
file *tmp = marked;
if (tmp == NULL)
return false;
while (tmp != NULL) {
if (strcmp(path, tmp->path) == 0) {
return true;
}
tmp = tmp->next;
}
return false;
}
file *get_file(long index)
{
file *current = files;
if (index == 0) {
return current;
}
if (index > files_len()) {
return NULL;
}
for (long i = 0; i < index; i++) {
current = current->next;
}
return current;
}
char *get_filepath(long index)
{
file *file = get_file(index);
if (file != NULL) {
char *name = strdup(file->path);
if (!name) {
perror("ccc");
}
return name;
} else {
return NULL;
}
}
int get_color(long index)
{
file *file = get_file(index);
if (file != NULL) {
int color = file->color;
if (!color) {
perror("ccc");
}
return color;
} else {
return 8; /* white */
}
}
/*
* Construct a formatted line for display
*/
char *get_line(long index)
{
file *file = get_file(index);
if (file != NULL) {
char *name = strdup(file->path);
char *stats = strdup(file->stats);
size_t length = strlen(name) + strlen(stats) + 2; /* one for space and one for null */
char *line = memalloc(length * sizeof(char));
name = basename(name);
if (name == NULL || stats == NULL)
perror("ccc");
snprintf(line, length, "%s %s", stats, name);
return line;
} else {
return NULL;
}
}