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/*
* blogc: A blog compiler.
* Copyright (C) 2014-2019 Rafael G. Martins <rafael@rafaelmartins.eng.br>
*
* This program can be distributed under the terms of the BSD License.
* See the file LICENSE.
*/
#include <errno.h>
#include <limits.h>
#include <stdbool.h>
#include <string.h>
#include <unistd.h>
#include <squareball.h>
#include "utils.h"
#ifndef PATH_MAX
#define PATH_MAX 4096
#endif
char*
bm_generate_filename(const char *dir, const char *prefix, const char *fname,
const char *ext)
{
bool have_prefix = prefix != NULL && prefix[0] != '\0';
bool have_fname = fname != NULL && fname[0] != '\0';
bool have_ext = ext != NULL && ext[0] != '\0';
bool have_ext_noslash = have_ext && ext[0] != '/';
bool is_index = have_fname && have_ext && (
(0 == strcmp(fname, "index")) && ext[0] == '/') && !have_prefix;
sb_string_t *rv = sb_string_new();
if (dir != NULL && (have_prefix || have_fname || have_ext))
sb_string_append(rv, dir);
if ((have_prefix || have_fname || have_ext_noslash) && !is_index)
sb_string_append_c(rv, '/');
if (have_prefix)
sb_string_append(rv, prefix);
// with fname we have posts, pages and tags
if (have_fname) {
if (have_prefix && have_fname && fname[0] != '/')
sb_string_append_c(rv, '/');
if (!is_index)
sb_string_append(rv, fname);
}
// no fname means index
else if (have_ext_noslash) {
if (have_fname)
sb_string_append_c(rv, '/');
if (!have_prefix)
sb_string_append(rv, "index");
}
if (have_ext)
sb_string_append(rv, ext);
if (rv->len == 0) {
sb_string_free(rv, true);
return NULL;
}
return sb_string_free(rv, false);
}
char*
bm_generate_filename2(const char *dir, const char *prefix, const char *fname,
const char *prefix2, const char *fname2, const char *ext)
{
bool have_prefix = prefix != NULL && prefix[0] != '\0';
bool have_fname = fname != NULL && fname[0] != '\0';
bool have_prefix2 = prefix2 != NULL && prefix2[0] != '\0';
sb_string_t *p = sb_string_new();
if (have_prefix)
sb_string_append(p, prefix);
if (have_prefix && (have_fname || have_prefix2))
sb_string_append_c(p, '/');
if (have_fname)
sb_string_append(p, fname);
if (have_fname && have_prefix2)
sb_string_append_c(p, '/');
if (have_prefix2)
sb_string_append(p, prefix2);
char *rv = bm_generate_filename(dir, p->str, fname2, ext);
sb_string_free(p, true);
return rv;
}
char*
bm_abspath(const char *path, sb_error_t **err)
{
if (err == NULL || *err != NULL)
return NULL;
if (path[0] == '/') {
return sb_strdup(path);
}
char cwd[PATH_MAX];
if (NULL == getcwd(cwd, sizeof(cwd))) {
*err = sb_strerror_new_printf(
"utils: Failed to detect absolute path (%s): %s", path, strerror(errno));
return NULL;
}
if (cwd[0] != '/') {
*err = sb_strerror_new_printf(
"utils: Failed to get current working directory: %s", cwd);
return NULL;
}
return sb_strdup_printf("%s/%s", cwd, path);
}
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