dropshell/src/services.cpp
Your Name 32da3d5fbc .
2025-04-30 19:43:50 +12:00

262 lines
9.5 KiB
C++

#include "services.hpp"
#include "utils/envmanager.hpp"
#include "utils/directories.hpp"
#include "templates.hpp"
#include "config.hpp"
#include "utils/utils.hpp"
#include "server_env_manager.hpp"
#include <iostream>
#include <filesystem>
namespace fs = std::filesystem;
namespace dropshell {
std::vector<LocalServiceInfo> get_server_services_info(const std::string& server_name) {
std::vector<LocalServiceInfo> services;
if (server_name.empty())
return services;
std::vector<std::string> local_config_directories = gConfig().get_local_config_directories();
if (local_config_directories.empty()) {
std::cerr << "Error: No local config directories found" << std::endl;
std::cerr << "Run 'dropshell init' to initialise DropShell" << std::endl;
return services;
}
for (int i = 0; i < localpath::num_config_directories(); i++) {
std::string serverpath = localpath::config_servers(i);
if (serverpath.empty()) {
std::cerr << "Error: Server directory not found: " << serverpath << std::endl;
return services;
}
fs::path server_dir = fs::path(serverpath) / server_name;
if (fs::exists(server_dir)) {
for (const auto& entry : fs::directory_iterator(server_dir)) {
if (fs::is_directory(entry)) {
auto service = get_service_info(server_name, entry.path().filename().string());
if (!service.template_name.empty()) {
services.push_back(service);
}
}
}
} // end of for (int i = 0; i < getNumConfigDirectories(); i++)
}
return services;
}
LocalServiceInfo get_service_info(const std::string &server_name, const std::string &service_name)
{
LocalServiceInfo service;
if (server_name.empty() || service_name.empty())
return LocalServiceInfo();
service.service_name = service_name;
service.local_service_path = localpath::service(server_name, service_name);
if (service.local_service_path.empty())
return LocalServiceInfo();
// now set the template name and path.
std::map<std::string, std::string> variables;
get_all_service_env_vars(server_name, service_name, variables);
// load the service.env file
auto it = variables.find("TEMPLATE");
if (it == variables.end()) {
std::cerr << "Error: TEMPLATE variable not defined in service " << service_name << " on server " << server_name << std::endl;
return LocalServiceInfo();
}
service.template_name = it->second;
template_info tinfo;
if (!get_template_info(service.template_name, tinfo)) {
std::cerr << "Error: Template '" << service.template_name << "' not found" << std::endl;
return LocalServiceInfo();
}
// find the template path
service.local_template_path = tinfo.local_template_path;
return service;
}
std::set<std::string> get_used_commands(const std::string &server_name, const std::string &service_name)
{
std::set<std::string> commands;
if (server_name.empty() || service_name.empty())
return commands;
auto service_info = get_service_info(server_name, service_name);
if (service_info.local_template_path.empty()) {
std::cerr << "Error: Service not found: " << service_name << std::endl;
return commands;
}
// iterate over all files in the template path, and add the command name to the set.
// commands are .sh files that don't begin with _
for (const auto& entry : fs::directory_iterator(service_info.local_template_path)) {
if (fs::is_regular_file(entry) && entry.path().extension() == ".sh" && (entry.path().filename().string().rfind("_", 0) != 0))
commands.insert(entry.path().stem().string());
}
return commands;
}
std::set<std::string> list_backups(const std::string &server_name, const std::string &service_name)
{
std::set<std::string> backups;
if (server_name.empty() || service_name.empty())
return backups;
// need to find the template for the service.
auto service_info = get_service_info(server_name, service_name);
if (service_info.local_template_path.empty()) {
std::cerr << "Error: Service not found: " << service_name << std::endl;
return backups;
}
std::string backups_dir = localpath::backups_path();
if (backups_dir.empty())
return backups;
if (fs::exists(backups_dir)) {
for (const auto& entry : fs::directory_iterator(backups_dir)) {
if (fs::is_regular_file(entry) && entry.path().extension() == ".tgz")
if (entry.path().filename().string().find(service_info.template_name) != std::string::npos)
{
backups.insert(entry.path().filename().string());
}
}
}
return backups;
}
bool create_service(const std::string &server_name, const std::string &template_name, const std::string &service_name, bool silent)
{
if (server_name.empty() || template_name.empty() || service_name.empty())
return false;
std::string service_dir = localpath::service(server_name, service_name);
if (service_dir.empty())
{
if (!silent)
{
std::cerr << "Error: Couldn't locate server " << server_name << " in any config directory" << std::endl;
std::cerr << "Please check the server name is correct and try again" << std::endl;
std::cerr << "You can list all servers with 'dropshell servers'" << std::endl;
std::cerr << "You can create a new server with 'dropshell create-server " << server_name << "'" << std::endl;
}
return false;
}
if (fs::exists(service_dir))
{
if (!silent)
{
std::cerr << "Error: Service already exists: " << service_name << std::endl;
std::cerr << "Current service path: " << service_dir << std::endl;
}
return false;
}
template_info tinfo;
if (!get_template_info(template_name, tinfo))
{
if (!silent)
{
std::cerr << "Error: Template '" << template_name << "' not found" << std::endl;
std::cerr << "Please check the template name is correct and try again" << std::endl;
std::cerr << "You can list all templates with 'dropshell templates'" << std::endl;
std::cerr << "You can create a new template with 'dropshell create-template " << template_name << "'" << std::endl;
}
return false;
}
// create the service directory
fs::create_directory(service_dir);
// copy the template example files to the service directory
recursive_copy(tinfo.local_template_path+"/example", service_dir);
if (!silent)
{
std::cout << "Service " << service_name <<" created successfully"<<std::endl;
std::cout << std::endl;
std::cout << "To complete the installation, please:" << std::endl;
std::cout << "1. edit the service.env file: dropshell edit " << server_name << " " << service_name << std::endl;
std::cout << "2. install the remote service: dropshell install " << server_name << " " << service_name << std::endl;
}
return true;
}
void get_all_service_env_vars(const std::string &server_name, const std::string &service_name, std::map<std::string, std::string> & all_env_vars)
{
all_env_vars.clear();
// add in some handy variables.
all_env_vars["CONFIG_PATH"] = remotepath::service_config(server_name,service_name);
all_env_vars["SERVER"] = server_name;
all_env_vars["SERVICE"] = service_name;
{ // load service.env from the service on this machine.
std::map<std::string, std::string> env_vars;
envmanager env_manager(localfile::service_env(server_name,service_name));
env_manager.load();
env_manager.get_all_variables(env_vars);
all_env_vars.merge(env_vars);
}
{ // load .template_info.env from the service on this machine.
std::map<std::string, std::string> env_vars;
envmanager env_manager(localfile::template_info_env(server_name,service_name));
env_manager.load();
env_manager.get_all_variables(env_vars);
all_env_vars.merge(env_vars);
}
// determine template name.
auto it = all_env_vars.find("TEMPLATE");
if (it == all_env_vars.end()) {
std::cerr << "Error: TEMPLATE variable not defined in service " << service_name << " on server " << server_name << std::endl;
std::cerr << "The TEMPLATE variable is required to determine the template name." << std::endl;
std::cerr << "Please check the service.env file and the .template_info.env file in:" << std::endl;
std::cerr << " " << localpath::service(server_name, service_name) << std::endl;
return;
}
std::string template_name = it->second;
template_info tinfo;
if (!get_template_info(template_name, tinfo)) {
std::cerr << "Error: Template '" << template_name << "' not found" << std::endl;
return;
}
{ // load _default.env from the template on this machine - gets overridden by service.env
std::map<std::string, std::string> env_vars;
std::string defaultenvpath = tinfo.local_template_path + "/_default.env";
if (std::filesystem::exists(defaultenvpath)) {
envmanager env_manager(defaultenvpath);
env_manager.load();
env_manager.get_all_variables(env_vars);
all_env_vars.merge(env_vars);
}
else
std::cerr << "Warning: _default.env not found in template: " << defaultenvpath << std::endl;
}
}
} // namespace dropshell