summaryrefslogtreecommitdiffstats
path: root/core/io/config_map.cc
blob: 9fd8ff7a4fe0a896fe893834aeccb02f36593f7a (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
#include "core/pch.hh"

#include "core/io/config_map.hh"

#include "core/config/ivalue.hh"
#include "core/io/cmdline.hh"
#include "core/utils/string.hh"
#include "core/version.hh"

void io::ConfigMap::load_cmdline(void)
{
    for(auto it : m_values) {
        if(auto value = io::cmdline::get_cstr(it.first.c_str())) {
            it.second->set(value);
        }
    }
}

bool io::ConfigMap::load_file(std::string_view path)
{
    if(auto file = PHYSFS_openRead(std::string(path).c_str())) {
        auto source = std::string(PHYSFS_fileLength(file), char(0x00));
        PHYSFS_readBytes(file, source.data(), source.size());
        PHYSFS_close(file);

        std::string line;
        std::string kv_string;
        std::istringstream stream(source);

        while(std::getline(stream, line)) {
            auto comment = line.find_first_of('#');

            if(comment == std::string::npos) {
                kv_string = utils::trim_whitespace(line);
            }
            else {
                kv_string = utils::trim_whitespace(line.substr(0, comment));
            }

            if(utils::is_whitespace(kv_string)) {
                // Ignore empty or commented out lines
                continue;
            }

            auto separator = kv_string.find('=');

            if(separator == std::string::npos) {
                spdlog::warn("config: {}: invalid line: {}", path, line);
                continue;
            }

            auto kv_name = utils::trim_whitespace(kv_string.substr(0, separator));
            auto kv_value = utils::trim_whitespace(kv_string.substr(separator + 1));

            auto kv_pair = m_values.find(kv_name);

            if(kv_pair == m_values.cend()) {
                spdlog::warn("config: {}: unknown key: {}", path, kv_name);
                continue;
            }

            kv_pair->second->set(kv_value.c_str());
        }

        return true;
    }

    return false;
}

bool io::ConfigMap::save_file(std::string_view path) const
{
    std::ostringstream stream;

    auto curtime = std::time(nullptr);

    stream << "# Voxelius " << version::semver << " configuration file" << std::endl;
    stream << "# Generated at: " << std::put_time(std::gmtime(&curtime), "%Y-%m-%d %H:%M:%S %z") << std::endl << std::endl;

    for(const auto& it : m_values) {
        stream << it.first << "=";
        stream << it.second->get();
        stream << std::endl;
    }

    if(auto file = PHYSFS_openWrite(std::string(path).c_str())) {
        auto source = stream.str();
        PHYSFS_writeBytes(file, source.data(), source.size());
        PHYSFS_close(file);
        return true;
    }

    return false;
}

bool io::ConfigMap::set_value(std::string_view name, std::string_view value)
{
    auto kv_pair = m_values.find(std::string(name));

    if(kv_pair != m_values.cend()) {
        kv_pair->second->set(value);
        return true;
    }

    return false;
}

std::string_view io::ConfigMap::get_value(std::string_view name) const
{
    auto kv_pair = m_values.find(std::string(name));
    if(kv_pair != m_values.cend()) {
        return kv_pair->second->get();
    }

    return std::string_view();
}

void io::ConfigMap::add_value(std::string_view name, config::IValue& vref)
{
    m_values.insert_or_assign(std::string(name), &vref);
}

const config::IValue* io::ConfigMap::find(std::string_view name) const
{
    auto kv_pair = m_values.find(std::string(name));

    if(kv_pair != m_values.cend()) {
        return kv_pair->second;
    }
    else {
        return nullptr;
    }
}