CMakeLists.txt

@@ -219,6 +219,7 @@ set(TILE_SRCS
     "tile/base/config/ini_file_configuration.cc"
     "tile/base/config/json_configuration.cc"
     "tile/base/config/layered_configuration.cc"
+    "tile/base/config/toml_configuration.cc"
 )
 
 if((NOT TILE_HAVE_GETIFADDRS) OR (NOT TILE_HAVE_FREEIFADDRS))
@@ -243,6 +244,7 @@ target_include_directories(
          "${CMAKE_CURRENT_SOURCE_DIR}"
          ${THIRD_PARTY_INCLUDE_DIRS}
          RPIVATE
+         "${CMAKE_CURRENT_SOURCE_DIR}/third_party/header_only/"
          "${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include")
 
 target_link_libraries(

third_party/README.md

@@ -0,0 +1,3 @@
+# Library
+
+- [toml11](https://github.com/ToruNiina/toml11/archive/refs/tags/v4.2.0.tar.gz)

tile/base/config/json_configuration_test.cc

@@ -1,5 +1,6 @@
 #include "tile/base/config/json_configuration.h"
 
+#include "gmock/gmock-matchers.h"
 #include "gtest/gtest.h"
 
 namespace tile {
@@ -85,16 +86,11 @@ TEST(json_configuration, Enumerate)
     ASSERT_TRUE(config.load(istr));
     auto keys = config.keys("");
     ASSERT_EQ(5, keys.size());
-    ASSERT_EQ("key1", keys[0]);
-    ASSERT_EQ("key2", keys[1]);
-    ASSERT_EQ("key3", keys[2]);
-    ASSERT_EQ("key4", keys[3]);
-    ASSERT_EQ("key5", keys[4]);
+    ASSERT_THAT(keys, ::testing::UnorderedElementsAre("key1", "key2", "key3", "key4", "key5"));
 
     keys = config.keys("key5");
     ASSERT_EQ(2, keys.size());
-    ASSERT_EQ("key5.key51", keys[0]);
-    ASSERT_EQ("key5.key52", keys[1]);
+    ASSERT_THAT(keys, ::testing::UnorderedElementsAre("key5.key51", "key5.key52"));
 
     config.Remove("key5.key51");
     keys = config.keys("key5");

tile/base/config/toml_configuration.cc

@@ -0,0 +1,219 @@
+#include "tile/base/config/toml_configuration.h"
+
+#include "tile/base/logging.h"
+#include "tile/base/string.h"
+#include "toml.hpp"
+
+namespace tile {
+class TomlConfiguration::Impl {
+public:
+    Impl() {}
+
+    ~Impl() = default;
+
+    bool load(std::istream &istr)
+    {
+        try {
+            value_ = toml::parse(istr);
+            return true;
+        } catch (...) {
+            return false;
+        }
+    }
+
+    bool load(const std::string &path)
+    {
+        try {
+            value_ = toml::parse(path);
+            return true;
+        } catch (...) {
+            return false;
+        }
+    }
+
+    toml::value *operator->() { return &value_; }
+
+    toml::value &operator*() { return value_; }
+
+private:
+    toml::value value_;
+};
+
+TomlConfiguration::TomlConfiguration() : impl_(new Impl) {}
+
+TomlConfiguration::~TomlConfiguration() {}
+
+bool
+TomlConfiguration::load(std::istream &istr)
+{
+    return impl_->load(istr);
+}
+
+bool
+TomlConfiguration::load(const std::string &path)
+{
+    return impl_->load(path);
+}
+
+void
+TomlConfiguration::SetInt(const Slice &key, int value)
+{
+    Configuration::SetInt(key, value);
+}
+
+void
+TomlConfiguration::SetBool(const Slice &key, bool value)
+{
+    Configuration::SetBool(key, value);
+}
+
+void
+TomlConfiguration::SetDouble(const Slice &key, double value)
+{
+    Configuration::SetDouble(key, value);
+}
+
+void
+TomlConfiguration::SetString(const Slice &key, const std::string &value)
+{
+    Configuration::SetString(key, value);
+}
+
+std::string
+TomlConfiguration::Dump() const
+{
+    try {
+        return toml::format(**impl_);
+    } catch (const std::exception &e) {
+        TILE_LOG_WARNING_EVERY_SECOND("{}", e.what());
+        return "";
+    }
+}
+
+bool
+TomlConfiguration::GetRaw(const Slice &key, std::string *value) const
+{
+    if (key.empty()) { return false; }
+    auto keys = Split(key, '.');
+
+    try {
+        auto cur = **impl_;
+        for (const auto &k : keys) {
+            auto next = toml::find(cur, k);
+            cur       = next;
+        }
+        std::stringstream ss;
+        if (cur.is_string()) {
+            ss << cur.as_string();
+        } else if (cur.is_integer()) {
+            ss << cur.as_integer();
+        } else if (cur.is_boolean()) {
+            ss << cur.as_boolean();
+        } else if (cur.is_floating()) {
+            ss << cur.as_floating();
+        } else if (cur.is_empty()) {
+            ss << "";
+        } else {
+            ss << toml::format(cur);
+        }
+        *value = ss.str();
+        return true;
+    } catch (const std::exception &e) {
+        TILE_LOG_WARNING_EVERY_SECOND("{}", e.what());
+        return false;
+    }
+}
+
+bool
+TomlConfiguration::SetRaw(const Slice &key, const Slice &value)
+{
+    if (key.empty()) { return false; }
+    auto keys = Split(key, '.');
+    try {
+        auto &root = **impl_;
+        for (size_t i = 0; i < keys.size() - 1; ++i) {
+            auto &next = toml::find(root, keys[i]);
+            root       = next;
+        }
+        root[keys.back()] = value.ToString();
+        return true;
+    } catch (const std::exception &e) {
+        TILE_LOG_WARNING_EVERY_SECOND("{}", e.what());
+        return false;
+    }
+}
+
+void
+TomlConfiguration::RemoveRaw(const Slice &key)
+{
+    if (key.empty()) { return; }
+    auto keys = Split(key, '.');
+    while (!keys.empty() && keys.back() == "") { keys.pop_back(); }
+    try {
+        if (keys.empty()) {
+            auto &root = **impl_;
+            root       = toml::table();
+            return;
+        }
+
+        auto root = **impl_;
+        for (size_t i = 0; i + 1 < keys.size(); ++i) {
+            if (!root.contains(keys[i])) { return; }
+            root = root.at(keys[i]);
+        }
+
+        if (!root.contains(keys.back())) { return; }
+        auto last_root = root.at(key.back());
+
+        // remove the last key
+        toml::value new_node = toml::table();
+        for (const auto &p : last_root.as_table()) {
+            if (p.first != keys.back()) { new_node[p.first] = p.second; }
+        }
+        last_root = new_node;
+    } catch (...) {}
+}
+
+Configuration::Keys
+TomlConfiguration::Enumerate(const Slice &range) const
+{
+    Configuration::Keys keys;
+    auto split_keys    = Split(range, '.');
+    auto last_key      = split_keys.empty() ? "" : split_keys.back();
+    std::string prefix = range;
+    if (!prefix.empty() && prefix.back() != '.') { prefix += "."; }
+
+    auto root = **impl_;
+    try {
+        // if (!root.is_empty()) {
+        for (int i = 0; i < split_keys.size(); ++i) {
+            auto next = toml::find(root, split_keys[i]);
+            root      = next;
+        }
+        // }
+
+        // if (root.is_empty()) { return keys; }
+
+        // for (const auto &k : keys_) {
+        //     auto next = toml::find(root, k);
+        //     root      = next;
+        // }
+
+        auto visitor = [&](const toml::value &node) {
+            if (node.is_table()) {
+                for (const auto &p : node.as_table()) {
+                    /*if (EndsWith(p.first, prefix)) */ {
+                        keys.push_back(prefix + p.first);
+                    }
+                }
+            }
+        };
+        toml::visit(visitor, root);
+        // TILE_LOG_INFO("{}", toml::format(root));
+    } catch (const std::exception &e) {
+        TILE_LOG_WARNING_EVERY_SECOND("{}\n{}\n", e.what(), Dump());
+    }
+    return keys;
+}
+
+}// namespace tile

tile/base/config/toml_configuration.h

@@ -0,0 +1,40 @@
+#ifndef TILE_BASE_CONFIG_TOML_CONFIGURATION_H
+#define TILE_BASE_CONFIG_TOML_CONFIGURATION_H
+
+#pragma once
+
+#include "tile/base/config/configuration.h"
+#include <map>
+
+namespace tile {
+class TomlConfiguration : public Configuration {
+public:
+    using Ptr = RefPtr<TomlConfiguration>;
+
+    TomlConfiguration();
+    ~TomlConfiguration() override;
+
+    bool load(std::istream &istr);
+    bool load(const std::string &path);
+
+    void SetInt(const Slice &key, int value) override;
+    void SetBool(const Slice &key, bool value) override;
+    void SetDouble(const Slice &key, double value) override;
+    void SetString(const Slice &key, const std::string &value) override;
+
+    void RemoveRaw(const Slice &key) override;
+    std::string Dump() const;
+
+protected:
+    bool GetRaw(const Slice &key, std::string *value) const override;
+    bool SetRaw(const Slice &key, const Slice &value) override;
+    Keys Enumerate(const Slice &range) const override;
+
+private:
+    class Impl;
+
+    std::unique_ptr<Impl> impl_;
+};
+}// namespace tile
+
+#endif// TILE_BASE_CONFIG_TOML_CONFIGURATION_H

tile/base/config/toml_configuration_test.cc

@@ -0,0 +1,71 @@
+#include "tile/base/config/toml_configuration.h"
+
+#include "gmock/gmock-matchers.h"
+#include "gtest/gtest.h"
+
+namespace tile {
+namespace {
+const char *kTomlConfig = R"(
+key1=1
+key2=2
+key3=1.9
+key4=true
+
+[key5]
+key51="value51"
+key52=52
+)";
+}
+
+TEST(TomlConfiguration, Load)
+{
+    TomlConfiguration config;
+    std::istringstream istr(kTomlConfig);
+    ASSERT_TRUE(config.load(istr));
+}
+
+TEST(TomlConfiguration, Has)
+{
+    TomlConfiguration config;
+    std::istringstream istr(kTomlConfig);
+    ASSERT_TRUE(config.load(istr));
+    ASSERT_TRUE(config.Has("key1"));
+    ASSERT_TRUE(config.Has("key2"));
+    ASSERT_TRUE(config.Has("key3"));
+    ASSERT_TRUE(config.Has("key4"));
+    ASSERT_TRUE(config.Has("key5"));
+    ASSERT_TRUE(config.Has("key5.key51"));
+    ASSERT_TRUE(config.Has("key5.key52"));
+}
+
+TEST(TomlConfiguration, SampleSet)
+{
+    TomlConfiguration config;
+    std::istringstream istr(kTomlConfig);
+    ASSERT_TRUE(config.load(istr));
+    ASSERT_TRUE(config.GetInt32("key2"));
+    ASSERT_EQ(*config.GetInt32("key2"), 2);
+
+    config.SetInt("key2", 20);
+}
+
+TEST(TomlConfiguration, Enumerate)
+{
+    TomlConfiguration config;
+    std::istringstream istr(kTomlConfig);
+    ASSERT_TRUE(config.load(istr));
+    auto keys = config.keys("");
+    ASSERT_EQ(5, keys.size());
+    ASSERT_THAT(keys, ::testing::UnorderedElementsAre("key1", "key2", "key3", "key4", "key5"));
+
+    keys = config.keys("key5");
+    // for (const auto &key : keys) { TILE_LOG_INFO("key5: {}", key); }
+    ASSERT_EQ(2, keys.size());
+    ASSERT_THAT(keys, ::testing::UnorderedElementsAre("key5.key51", "key5.key52"));
+
+    config.Remove("key5.key51");
+    keys = config.keys("key5");
+    ASSERT_EQ("key5.key52", keys[0]);
+}
+
+}// namespace tile

tile/base/slice.h

@@ -175,8 +175,8 @@ public:
     inline operator string_t() const { return ToString(); }
 
 private:
-    const char *data_;
-    size_t len_;
+    const char *data_{nullptr};
+    size_t len_{0};
 };
 
 inline bool