aboutsummaryrefslogtreecommitdiffstats
path: root/src/blogc-make/settings.c
blob: f13d5b2eb7075f71bb3ff7bb90fe8b496a788b7a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
/*
 * 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 <libgen.h>
#include <stdbool.h>
#include <stdlib.h>
#include "../common/config-parser.h"
#include "../common/error.h"
#include "../common/file.h"
#include "../common/utils.h"
#include "settings.h"


static const struct default_settings_map {
    const char *key;
    const char *default_value;
} default_settings[] = {

    // source
    {"content_dir", "content"},
    {"template_dir", "templates"},
    {"atom_template", NULL},  // default: atom.c
    {"main_template", "main.tmpl"},
    {"source_ext", ".txt"},
    {"listing_entry", NULL},
    {"posts_sort", NULL},

    // pagination
    {"pagination_prefix", "page"},
    {"posts_per_page", "10"},
    {"atom_posts_per_page", "10"},

    // html
    {"html_ext", "/index.html"},
    {"index_prefix", ""},
    {"post_prefix", "post"},
    {"tag_prefix", "tag"},
    {"html_order", "DESC"},

    // atom
    {"atom_prefix", "atom"},
    {"atom_ext", ".xml"},
    {"atom_order", "DESC"},
    {"atom_legacy_entry_id", NULL},

    // generic
    {"date_format", "%b %d, %Y, %I:%M %p GMT"},
    {"locale", NULL},

    {NULL, NULL},
};


static const char* required_global[] = {
    "AUTHOR_NAME",
    "AUTHOR_EMAIL",
    "SITE_TITLE",
    "SITE_TAGLINE",
    "BASE_DOMAIN",
    NULL,
};


static const char* list_sections[] = {
    "posts",
    "pages",
    "copy",
    "copy_files",  // backward compatibility
    "tags",
    "sass",
    NULL,
};


bm_settings_t*
bm_settings_parse(const char *content, size_t content_len, bc_error_t **err)
{
    if (err == NULL || *err != NULL)
        return NULL;

    if (content == NULL)
        return NULL;

    bc_config_t *config = bc_config_parse(content, content_len, list_sections,
        err);
    if (config == NULL || (err != NULL && *err != NULL))
        return NULL;

    bm_settings_t *rv = bc_malloc(sizeof(bm_settings_t));
    rv->global = bc_trie_new(free);
    rv->settings = bc_trie_new(free);
    rv->posts = NULL;
    rv->pages = NULL;
    rv->copy = NULL;
    rv->tags = NULL;
    rv->sass = NULL;

    // this is some code for compatibility with the [environment] section,
    // even if I never released a version with it, but some people is using
    // it already.
    const char *section = NULL;
    char **global = bc_config_list_keys(config, "global");
    if (global != NULL) {
        section = "global";
    }
    else {
        global = bc_config_list_keys(config, "environment");
        if (global != NULL) {
            section = "environment";
        }
        else {
            section = "global";
        }
    }

    if (global != NULL) {
        for (size_t i = 0; global[i] != NULL; i++) {
            for (size_t j = 0; global[i][j] != '\0'; j++) {
                if (!((global[i][j] >= 'A' && global[i][j] <= 'Z') || global[i][j] == '_')) {
                    *err = bc_error_new_printf(BLOGC_MAKE_ERROR_SETTINGS,
                        "Invalid [%s] key: %s", section, global[i]);
                    bc_strv_free(global);
                    bm_settings_free(rv);
                    rv = NULL;
                    goto cleanup;
                }
            }
            bc_trie_insert(rv->global, global[i],
                bc_strdup(bc_config_get(config, section, global[i])));
        }
    }
    bc_strv_free(global);

    for (size_t i = 0; required_global[i] != NULL; i++) {
        const char *value = bc_trie_lookup(rv->global, required_global[i]);
        if (value == NULL || value[0] == '\0') {
            *err = bc_error_new_printf(BLOGC_MAKE_ERROR_SETTINGS,
                "[%s] key required but not found or empty: %s", section,
                required_global[i]);
            bm_settings_free(rv);
            rv = NULL;
            goto cleanup;
        }
    }

    for (size_t i = 0; default_settings[i].key != NULL; i++) {
        const char *value = bc_config_get_with_default(
            config, "settings", default_settings[i].key,
            default_settings[i].default_value);
        if (value != NULL) {
            bc_trie_insert(rv->settings, default_settings[i].key,
                bc_strdup(value));
        }
    }

    rv->posts = bc_config_get_list(config, "posts");
    rv->pages = bc_config_get_list(config, "pages");
    rv->tags = bc_config_get_list(config, "tags");
    rv->sass = bc_config_get_list(config, "sass");

    // this is for backward compatibility too.
    rv->copy = bc_config_get_list(config, "copy");
    if (rv->copy == NULL)
        rv->copy = bc_config_get_list(config, "copy_files");

cleanup:

    bc_config_free(config);

    return rv;
}


void
bm_settings_free(bm_settings_t *settings)
{
    if (settings == NULL)
        return;
    bc_trie_free(settings->global);
    bc_trie_free(settings->settings);
    bc_strv_free(settings->posts);
    bc_strv_free(settings->pages);
    bc_strv_free(settings->copy);
    bc_strv_free(settings->tags);
    bc_strv_free(settings->sass);
    free(settings);
}