67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include "logs.h"
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#include "types.h"
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time_t get_file_time(File file) {
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struct stat attr;
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if (stat(file.path, &attr) == 0) {
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return attr.st_mtim.tv_sec;
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}
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return 0;
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}
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bool should_update_file(File file) {
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return file.last_write != get_file_time(file);
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}
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void update_file(File *file) {
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// free remaining data
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if (file->content != 0) {
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free(file->content);
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}
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log_info("Reading '%s'...", file->path);
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// init empty file
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file->content = 0;
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file->error = false;
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long length;
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// open file
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FILE *file_pointer = fopen(file->path, "rb");
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if (!file_pointer) {
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file->error = true;
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log_error("Cannot open file '%s'", file->path);
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return;
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}
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// read file length
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fseek(file_pointer, 0, SEEK_END);
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length = ftell(file_pointer);
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// init buffer
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fseek(file_pointer, 0, SEEK_SET);
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file->content = (char *)malloc((length + 1) * sizeof(char));
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if (!file->content) {
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file->error = true;
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fclose(file_pointer);
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log_error("Cannot read file '%s'", file->path);
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return;
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}
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// read file
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fread(file->content, sizeof(char), length, file_pointer);
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// close file
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fclose(file_pointer);
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// append null byte
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file->content[length] = '\0';
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// read last update time
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file->last_write = get_file_time(*file);
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}
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File read_file(char *path) {
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File file = {path, 0, false, 0};
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update_file(&file);
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return file;
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}
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void free_file(File *file) { free(file->content); } |