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Manager: Add config file parsing

master
Riyyi 3 years ago
parent
commit
da91c4b3fd
  1. 61
      src/config.cpp
  2. 37
      src/config.h

61
src/config.cpp

@ -4,7 +4,13 @@
* SPDX-License-Identifier: MIT
*/
#include <csignal> // raise
#include <cstdio> // fprintf
#include <fstream> // ifstream
#include <string>
#include <vector>
#include "nlohmann/json.hpp"
#include "config.h"
@ -13,6 +19,7 @@ Config::Config(s)
, m_workingDirectorySize(m_workingDirectory.string().size())
{
findConfigFile();
parseConfigFile();
}
Config::~Config()
@ -36,3 +43,57 @@ void Config::findConfigFile()
printf("Found config file @ %s\n", m_config.c_str() + m_workingDirectorySize + 1);
#endif
}
void Config::parseConfigFile()
{
if (m_config.empty()) {
return;
}
nlohmann::json json;
std::ifstream file(m_config);
if (!file.is_open()) {
return;
}
try {
file >> json;
}
catch (...) {
fprintf(stderr, "\033[31;1mConfig:\033[0m json syntax error\n");
raise(SIGABRT);
return;
}
m_settings = json.get<Settings>();
}
// -----------------------------------------
void to_json(nlohmann::json& object, const Settings& settings)
{
object = nlohmann::json {
{ "excludePaths", settings.excludePaths },
{ "systemDirectories", settings.systemDirectories }
};
}
void from_json(const nlohmann::json& object, Settings& settings)
{
if (object.find("excludePaths") != object.end()) {
object.at("excludePaths").get_to(settings.excludePaths);
}
if (object.find("systemDirectories") != object.end()) {
object.at("systemDirectories").get_to(settings.systemDirectories);
}
// Check for correct exclude type values
for (const auto& path : settings.excludePaths) {
if (path.second != "file" && path.second != "directory" && path.second != "endsWith") {
fprintf(stderr, "\033[31;1mConfig:\033[0m invalid exclude type '%s'\n", path.second.c_str());
raise(SIGABRT);
}
}
}

37
src/config.h

@ -7,11 +7,31 @@
#ifndef CONFIG_H
#define CONFIG_H
#include <cstddef> // size_t
#include <filesystem>
#include <cstddef> // size_t
#include <filesystem> // path
#include <map>
#include <string>
#include <vector>
#include "nlohmann/json.hpp"
#include "util/singleton.h"
struct Settings {
std::map<std::string, std::string> excludePaths {
{ ".git", "directory" },
{ ".md", "endsWith" },
{ "packages", "file" },
{ "README.org", "endsWith" },
{ "screenshot.png", "file" },
};
std::vector<std::filesystem::path> systemDirectories {
"/boot",
"/etc",
"/usr/share"
};
};
class Config : public Util::Singleton<Config> {
public:
Config(s);
@ -19,12 +39,17 @@ public:
void setVerbose(bool verbose) { m_verbose = verbose; }
const std::map<std::string, std::string>& excludePaths() const { return m_settings.excludePaths; }
const std::vector<std::filesystem::path>& systemDirectories() const { return m_settings.systemDirectories; }
const std::filesystem::path& workingDirectory() const { return m_workingDirectory; }
size_t workingDirectorySize() const { return m_workingDirectorySize; }
bool verbose() const { return m_verbose; }
private:
void findConfigFile();
void parseConfigFile();
bool m_verbose { false };
@ -32,6 +57,14 @@ private:
size_t m_workingDirectorySize { 0 };
std::filesystem::path m_config;
Settings m_settings;
};
// -----------------------------------------
// nlohmann::json arbitrary type conversion functions
void to_json(nlohmann::json& object, const Settings& settings);
void from_json(const nlohmann::json& object, Settings& settings);
#endif // CONFIG_H

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