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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 <config.h>
#include <copy.h>
#include <engine.h>
#include <errno.h>
#include <filehandler.h>
#include <ftw.h>
#include <lexer.h>
#include <libgen.h>
#include <list.h>
#include <mkdio.h>
#include <msg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <template.h>
#include <time.h>
#include <util.h>
#define LOG_THRESHOLD 6
extern msg_t *msg;
void
handle_file(const char *path)
{
char *inpath;
char *outpath;
asprintf(&inpath, "%s/%s", msg->base_directory, path);
char *dot = strrchr(inpath, '.');
if (dot && strcmp(dot, ".md") == 0) {
asprintf(&outpath,
"%s/%.*s.html",
msg->output_directory,
(int) strlen(path) - 3,
path);
} else {
asprintf(&outpath, "%s/%s", msg->output_directory, path);
}
char *temp_outpath = strdup(outpath);
char *directory = dirname(temp_outpath);
char *next = calloc(strlen(directory) + 1, sizeof(char));
strcpy(next, "");
char *token;
for (token = strtok(directory, "/"); token != NULL;
token = strtok(NULL, "/")) {
if (strcmp(next, "") != 0) {
strcat(next, "/");
}
strcat(next, token);
mkdir(next, 0700);
}
free(next);
free(temp_outpath);
FILE *in = fopen(inpath, "r");
if (in == NULL) {
printf("Failed to open %s\n", inpath);
return;
}
FILE *out = fopen(outpath, "w");
if (out == NULL) {
printf("Failed to open %s\n", outpath);
fclose(in);
return;
}
unsigned int size = fsize(in);
char *buffer = fcontent(in, size);
if (dot && strcmp(dot, ".md") == 0) {
engine_t engine = { .config = NULL, .content_headers = NULL };
char *p = strstr(buffer, "---");
if (p != NULL) {
char *config;
asprintf(&config, "%.*s\n", (int) (p - buffer), buffer);
engine.config = config_parse(config);
free(config);
char *tempbuffer = strdup(p);
free(buffer);
asprintf(&buffer, "%s", tempbuffer + strlen("---"));
free(tempbuffer);
}
mkd_flag_t *flags = mkd_flags();
mkd_set_flag_num(flags, MKD_FENCEDCODE);
MMIOT *doc = mkd_string(buffer, strlen(buffer), flags);
free(flags);
template_write(&engine, out, doc, true);
if (engine.config != NULL)
config_delete(engine.config);
} else if (strlen(buffer) != 0) {
engine_t *engine = engine_ingest(&buffer, false);
template_write(engine, out, buffer, false);
engine_delete(engine);
}
free(buffer);
fclose(in);
fclose(out);
free(inpath);
free(outpath);
}
int
run(bool log)
{
if (log) {
time_t rawtime;
struct tm *timeinfo;
time(&rawtime);
timeinfo = localtime(&rawtime);
printf("Generation started at: %s", asctime(timeinfo));
}
struct stat sb;
if (stat(msg->base_directory, &sb) != 0 || !S_ISDIR(sb.st_mode)) {
printf("%s does not exist.\n", msg->base_directory);
return EXIT_FAILURE;
}
char *config_path;
asprintf(&config_path, "%s/%s", msg->base_directory, CONFIG_FILE);
config_t *config = config_fetch_and_parse(config_path);
free(config_path);
if (config == NULL)
return EXIT_FAILURE;
msg->config = config;
template_initialize();
int err = mkdir(msg->output_directory, 0700);
if (err != 0 && errno != EEXIST) {
perror("mkdir");
return EXIT_FAILURE;
}
list_t *static_ = unwrap(list_find_corresponding_value_from_ptr_wrapper(
config->keys, config->array_values, "static"));
if (static_ == NULL) {
printf("Could not find resources in config.cfg\n");
return EXIT_FAILURE;
}
for (size_t i = 0; i < static_->size; i++) {
ptr_wrapper_t *value = list_get(static_, i);
char *path = NULL;
asprintf(&path, "%s/%s", msg->base_directory, (char *) value->ptr);
struct stat path_stat;
stat(path, &path_stat);
/* TODO: Error handling */
if (S_ISREG(path_stat.st_mode))
copy_recursively(path, NULL, FTW_F, NULL);
else if (S_ISDIR(path_stat.st_mode))
nftw(path, copy_recursively, 64, FTW_PHYS | FTW_ACTIONRETVAL);
free(path);
}
list_t *resources = unwrap(list_find_corresponding_value_from_ptr_wrapper(
config->keys, config->array_values, "resources"));
if (resources == NULL) {
printf("Could not find resources in config.cfg\n");
return EXIT_FAILURE;
}
for (size_t i = 0; i < resources->size; i++) {
ptr_wrapper_t *value = list_get(resources, i);
char *path = value->ptr;
if (log) {
if (i < LOG_THRESHOLD || msg->verbose)
printf("\tProcessing %s\n", path);
else if (i == LOG_THRESHOLD && !msg->verbose)
printf("\t...\n");
}
handle_file(path);
}
template_clean();
config_delete(config);
return EXIT_SUCCESS;
}
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