231 lines
8.5 KiB
C++
231 lines
8.5 KiB
C++
#include <filesystem>
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#include <iostream>
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#include <fstream>
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#include <vector>
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#include <string>
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#include <algorithm>
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#include <iomanip>
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#include <map>
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#include "utils/envmanager.hpp"
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#include "utils/directories.hpp"
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#include "utils/utils.hpp"
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#include "templates.hpp"
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#include "config.hpp"
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namespace dropshell {
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std::set<std::string> template_source_local::get_template_list() {
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std::set<std::string> templates;
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// Helper function to add templates from a directory
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auto add_templates_from_dir = [&templates](const std::string& dir_path) {
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if (!std::filesystem::exists(dir_path))
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return;
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for (const auto& entry : std::filesystem::directory_iterator(dir_path))
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if (entry.is_directory())
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templates.insert(entry.path().filename().string());
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};
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add_templates_from_dir(mLocalPath);
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return templates;
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}
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bool template_source_local::has_template(const std::string& template_name) {
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return std::filesystem::exists(mLocalPath / template_name);
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}
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bool template_source_local::template_command_exists(const std::string& template_name, const std::string& command) {
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std::filesystem::path path = mLocalPath / template_name / (command+".sh");
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return std::filesystem::exists(path);
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}
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template_info template_source_local::get_template_info(const std::string& template_name) {
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std::filesystem::path path = mLocalPath / template_name;
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if (!std::filesystem::exists(path))
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return template_info();
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return template_info(
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template_name,
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mLocalPath.string(),
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path
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);
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}
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void template_manager::list_templates() {
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auto templates = get_template_list();
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if (templates.empty()) {
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std::cout << "No templates found." << std::endl;
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return;
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}
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std::cout << "Available templates:" << std::endl;
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// print templates.
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std::cout << std::string(60, '-') << std::endl;
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bool first = true;
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for (const auto& t : templates) {
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std::cout << (first ? "" : ", ") << t;
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first = false;
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}
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std::cout << std::endl;
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std::cout << std::string(60, '-') << std::endl;
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}
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void template_manager::create_template(const std::string& template_name) {
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// 1. Create a new directory in the user templates directory
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std::vector<std::string> local_server_definition_paths = gConfig().get_local_server_definition_paths();
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if (local_server_definition_paths.empty()) {
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std::cerr << "Error: No local server definition paths found" << std::endl;
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std::cerr << "Run 'dropshell init' to initialise DropShell" << std::endl;
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return;
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}
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auto info = get_template_info(template_name);
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if (info.is_set()) {
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std::cerr << "Error: Template '" << template_name << "' already exists at " << info.locationID() << std::endl;
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return;
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}
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auto local_template_paths = gConfig().get_template_local_paths();
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if (local_template_paths.empty()) {
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std::cerr << "Error: No local template paths found" << std::endl;
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std::cerr << "Run 'dropshell edit' to add one to the DropShell config" << std::endl;
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return;
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}
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std::string new_template_path = local_template_paths[0] + "/" + template_name;
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// Create the new template directory
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std::filesystem::create_directories(new_template_path);
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// 2. Copy the example template from the system templates directory
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auto example_info = gTemplateManager().get_template_info("example-nginx");
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if (!example_info.is_set()) {
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std::cerr << "Error: Example template not found" << std::endl;
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return;
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}
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std::string example_template_path = example_info.local_template_path();
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// Copy all files from example template to new template
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for (const auto& entry : std::filesystem::recursive_directory_iterator(example_template_path)) {
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std::string relative_path = entry.path().string().substr(example_template_path.length());
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std::string target_path = new_template_path + relative_path;
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if (entry.is_directory()) {
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std::filesystem::create_directory(target_path);
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} else {
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std::filesystem::copy_file(entry.path(), target_path);
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}
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}
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// modify the TEMPLATE=example line in the .template_info.env file to TEMPLATE=<template_name>
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std::string search_string = "TEMPLATE=";
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std::string replacement_line = "TEMPLATE=" + template_name;
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std::string service_env_path = new_template_path + "/config/.template_info.env";
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if (!replace_line_in_file(service_env_path, search_string, replacement_line)) {
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std::cerr << "Error: Failed to replace TEMPLATE= line in the .template_info.env file" << std::endl;
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return;
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}
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// 3. Print out the README.txt file and the path
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std::string readme_path = new_template_path + "/README.txt";
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if (std::filesystem::exists(readme_path)) {
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std::cout << "\nREADME contents:" << std::endl;
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std::cout << std::string(60, '-') << std::endl;
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std::ifstream readme_file(readme_path);
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if (readme_file.is_open()) {
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std::string line;
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while (std::getline(readme_file, line)) {
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std::cout << line << std::endl;
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}
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readme_file.close();
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}
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std::cout << std::string(60, '-') << std::endl;
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} else {
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std::cout << "No README.txt file found in the template." << std::endl;
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}
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std::cout << std::endl;
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std::cout << "Template '" << template_name << "' created at " << new_template_path << std::endl;
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test_template(new_template_path);
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}
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bool template_manager::required_file(std::string path, std::string template_name)
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{
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if (!std::filesystem::exists(path)) {
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std::cerr << "Error: " << path << " file not found in template " << template_name << std::endl;
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return false;
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}
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return true;
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}
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bool template_manager::test_template(const std::string &template_path)
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{
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std::string template_name = std::filesystem::path(template_path).filename().string();
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std::vector<std::string> required_files = {
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"config/service.env",
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"config/.template_info.env",
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"_default.env",
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"install.sh",
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"uninstall.sh",
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"nuke.sh"
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};
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for (const auto& file : required_files) {
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if (!required_file(template_path + "/" + file, template_name))
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return false;
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}
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// ------------------------------------------------------------
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// check TEMPLATE= line.
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std::map<std::string, std::string> all_env_vars;
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std::vector<std::string> env_files = {
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"config/service.env",
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"config/.template_info.env"
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};
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for (const auto& file : env_files) {
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{ // load service.env from the service on this machine.
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std::map<std::string, std::string> env_vars;
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envmanager env_manager(template_path + "/" + file);
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env_manager.load();
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env_manager.get_all_variables(env_vars);
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all_env_vars.merge(env_vars);
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}
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}
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// determine template name.
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auto it = all_env_vars.find("TEMPLATE");
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if (it == all_env_vars.end()) {
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std::cerr << "Error: TEMPLATE variable not found in " << template_path << std::endl;
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return false;
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}
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std::string env_template_name = it->second;
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if (env_template_name.empty()) {
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std::cerr << "Error: TEMPLATE variable is empty in " << template_path << std::endl;
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return false;
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}
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if (env_template_name != template_name) {
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std::cerr << "Error: TEMPLATE variable is wrong in " << template_path << std::endl;
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return false;
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}
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return true;
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}
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template_manager & gTemplateManager()
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{
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static template_manager instance;
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return instance;
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}
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} // namespace dropshell
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