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/*
* msg
* Copyright (C) 2025 Raghuram Subramani <raghus2247@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define _GNU_SOURCE
#include <limits.h>
#include <msg.h>
#include <signal.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/inotify.h>
#include <unistd.h>
#define BUFFER_SIZE ((sizeof(struct inotify_event) + NAME_MAX + 1) * 1024)
msg_t *msg;
bool stop = false;
void
signal_handler(int x)
{
(void) x;
stop = true;
}
void
usage(char *program)
{
printf("Usage: %s [-h] [-w] [-v] [-o <output>] <directory>\n", program);
printf("\t-h : Help\n");
printf("\t-w : Watch working directory for changes\n");
printf("\t-v : Verbose\n");
printf("\t-o <output>: Output directory\n");
printf("\t<directory>: Working directory\n");
}
void
config(void)
{
printf("Base Directory: %s\n", msg->base_directory);
printf("Output Directory: %s\n\n", msg->output_directory);
}
int
main(int argc, char **argv)
{
printf("msg: The Minimal Static Site Generator\n\n");
bool watch = false;
int opt;
msg = malloc(sizeof(msg_t));
msg->base_directory = ".";
msg->output_directory = "dist";
msg->verbose = false;
while ((opt = getopt(argc, argv, "o:hvw")) != -1) {
switch (opt) {
case 'o':
msg->output_directory = optarg;
break;
case 'w':
watch = true;
break;
case 'v':
msg->verbose = true;
break;
case 'h':
default:
usage(argv[0]);
return EXIT_SUCCESS;
}
}
if (optind < argc)
msg->base_directory = argv[optind];
config();
int r = run();
if (!watch) {
free(msg);
return r;
}
int fd = inotify_init1(IN_NONBLOCK);
if (fd < 0) {
perror("inotify");
return EXIT_FAILURE;
}
int wd = inotify_add_watch(
fd, msg->base_directory, IN_MODIFY | IN_CREATE | IN_DELETE);
if (wd < 0) {
perror("inotify_add_watch");
return EXIT_FAILURE;
}
char *buffer = malloc(BUFFER_SIZE);
signal(SIGKILL, signal_handler);
signal(SIGINT, signal_handler);
while (!stop) {
size_t i = 0;
size_t length = read(fd, buffer, BUFFER_SIZE);
if (length == 0) {
}
if (length < 0) {
perror("read");
return EXIT_FAILURE;
}
char *p;
for (p = buffer; p < buffer + length;) {
struct inotify_event *event = (struct inotify_event *) p;
if (event->len) {
switch (event->mask) {
case IN_MODIFY:
printf("\n\n");
run();
break;
default:
break;
}
}
p += sizeof(struct inotify_event) + event->len;
}
}
free(buffer);
free(msg);
return r;
}
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