fleshing out stage creation
Chris Punches
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b034a3679d
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4588691faf
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/**
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* @file package_staging.hpp
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* @brief Functions for staging DPM packages
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*
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* Defines functions for creating and manipulating DPM package staging structures.
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*
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* @copyright Copyright (c) 2025 SILO GROUP LLC
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* @author Chris Punches <chris.punches@silogroup.org>
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*
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* Part of the Dark Horse Linux Package Manager (DPM)
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*/
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#pragma once
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#include <filesystem>
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#include <vector>
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#include <string>
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#include <fstream>
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#include <sys/stat.h>
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#include <dpmdk/include/CommonModuleAPI.hpp>
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/**
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* @brief Stages a DPM package
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*
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* Creates a package staging directory with the provided parameters.
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*
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* @param output_dir Directory to save the staged package
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* @param contents_dir Directory with package contents
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* @param hooks_dir Directory with package hooks (optional)
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* @param package_name Package name
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* @param package_version Package version
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* @param architecture Package architecture
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* @param os Package OS (optional)
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* @param force Force package staging even if warnings occur
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* @return 0 on success, non-zero on failure
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*/
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int build_package_stage(
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const std::string& output_dir,
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const std::string& contents_dir,
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const std::string& hooks_dir,
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const std::string& package_name,
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const std::string& package_version,
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const std::string& architecture,
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const std::string& os,
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bool force
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);
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/**
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* @file package_staging.cpp
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* @brief Implementation of DPM package staging functions
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*
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* Implements functions for staging DPM packages according to specification.
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*
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* @copyright Copyright (c) 2025 SILO GROUP LLC
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* @author Chris Punches <chris.punches@silogroup.org>
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*
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* Part of the Dark Horse Linux Package Manager (DPM)
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*/
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#include "package_staging.hpp"
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int build_package_stage(
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const std::string& output_dir,
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const std::string& contents_dir,
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const std::string& hooks_dir,
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const std::string& package_name,
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const std::string& package_version,
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const std::string& architecture,
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const std::string& os,
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bool force
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) {
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// Log start of package staging
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dpm_log(LOG_INFO, "Starting package staging...");
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// Create the basic package structure in the output directory
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std::string package_dirname = package_name + "-" + package_version + "." + os + "." + architecture;
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std::filesystem::path package_dir = std::filesystem::path(output_dir) / package_dirname;
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// Check if the package directory already exists
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if (std::filesystem::exists(package_dir)) {
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if (!force) {
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dpm_log(LOG_ERROR, ("Package directory already exists: " + package_dir.string() +
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". Use --force to overwrite.").c_str());
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return 1;
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}
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// If force flag is set, try to remove the existing directory
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dpm_log(LOG_WARN, ("Removing existing package directory: " + package_dir.string()).c_str());
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try {
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std::filesystem::remove_all(package_dir);
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} catch (const std::filesystem::filesystem_error& e) {
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dpm_log(LOG_ERROR, ("Failed to remove existing directory: " + std::string(e.what())).c_str());
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return 1;
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}
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}
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// Create the package directory structure
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try {
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// Create main package directory
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std::filesystem::create_directory(package_dir);
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// Create subdirectories
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std::filesystem::create_directory(package_dir / "contents");
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std::filesystem::create_directory(package_dir / "hooks");
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std::filesystem::create_directory(package_dir / "metadata");
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std::filesystem::create_directory(package_dir / "signatures");
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dpm_log(LOG_INFO, ("Created package directory structure at: " + package_dir.string()).c_str());
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} catch (const std::filesystem::filesystem_error& e) {
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dpm_log(LOG_ERROR, ("Failed to create package directory structure: " + std::string(e.what())).c_str());
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return 1;
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}
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// Copy contents from source directory to package contents directory
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try {
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std::filesystem::path contents_source = std::filesystem::path(contents_dir);
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std::filesystem::path contents_dest = package_dir / "contents";
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dpm_log(LOG_INFO, ("Copying contents from: " + contents_source.string() +
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" to: " + contents_dest.string()).c_str());
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// If the contents source is a directory, copy its contents
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if (std::filesystem::is_directory(contents_source)) {
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for (const auto& entry : std::filesystem::directory_iterator(contents_source)) {
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// Get the relative path from the source directory
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std::filesystem::path relative = entry.path().lexically_relative(contents_source);
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std::filesystem::path dest_path = contents_dest / relative;
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if (entry.is_directory()) {
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std::filesystem::create_directories(dest_path);
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// Copy the directory contents recursively
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for (const auto& subentry : std::filesystem::recursive_directory_iterator(entry)) {
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std::filesystem::path subrelative = subentry.path().lexically_relative(contents_source);
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std::filesystem::path subdest_path = contents_dest / subrelative;
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if (subentry.is_directory()) {
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std::filesystem::create_directories(subdest_path);
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} else {
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std::filesystem::copy_file(subentry.path(), subdest_path,
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std::filesystem::copy_options::overwrite_existing);
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}
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}
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} else {
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std::filesystem::copy_file(entry.path(), dest_path,
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std::filesystem::copy_options::overwrite_existing);
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}
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}
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}
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// If the contents source is a file (like a tarball), just copy it
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else if (std::filesystem::is_regular_file(contents_source)) {
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std::filesystem::path dest_path = contents_dest / contents_source.filename();
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std::filesystem::copy_file(contents_source, dest_path,
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std::filesystem::copy_options::overwrite_existing);
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}
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} catch (const std::filesystem::filesystem_error& e) {
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dpm_log(LOG_ERROR, ("Failed to copy contents: " + std::string(e.what())).c_str());
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return 1;
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}
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// Copy hooks if provided
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if (!hooks_dir.empty()) {
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try {
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std::filesystem::path hooks_source = std::filesystem::path(hooks_dir);
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std::filesystem::path hooks_dest = package_dir / "hooks";
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dpm_log(LOG_INFO, ("Copying hooks from: " + hooks_source.string() +
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" to: " + hooks_dest.string()).c_str());
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// If hooks source is a directory, copy its contents
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if (std::filesystem::is_directory(hooks_source)) {
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for (const auto& entry : std::filesystem::directory_iterator(hooks_source)) {
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// Get the relative path from the source directory
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std::filesystem::path relative = entry.path().lexically_relative(hooks_source);
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std::filesystem::path dest_path = hooks_dest / relative;
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if (entry.is_directory()) {
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std::filesystem::create_directories(dest_path);
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} else {
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std::filesystem::copy_file(entry.path(), dest_path,
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std::filesystem::copy_options::overwrite_existing);
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// Make hook files executable
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chmod(dest_path.c_str(), 0755);
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}
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}
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}
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// If hooks source is a file, just copy it
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else if (std::filesystem::is_regular_file(hooks_source)) {
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std::filesystem::path dest_path = hooks_dest / hooks_source.filename();
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std::filesystem::copy_file(hooks_source, dest_path,
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std::filesystem::copy_options::overwrite_existing);
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// Make hook file executable
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chmod(dest_path.c_str(), 0755);
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}
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} catch (const std::filesystem::filesystem_error& e) {
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dpm_log(LOG_ERROR, ("Failed to copy hooks: " + std::string(e.what())).c_str());
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return 1;
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}
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} else {
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// If no hooks directory provided, create empty hook script templates
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std::vector<std::string> hook_names = {
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"PRE-INSTALL", "PRE-INSTALL_ROLLBACK",
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"POST-INSTALL", "POST-INSTALL_ROLLBACK",
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"PRE-UPDATE", "PRE-UPDATE_ROLLBACK",
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"POST-UPDATE", "POST-UPDATE_ROLLBACK",
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"PRE-REMOVE", "PRE-REMOVE_ROLLBACK",
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"POST-REMOVE", "POST-REMOVE_ROLLBACK"
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};
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dpm_log(LOG_INFO, "Creating empty hook templates");
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for (const auto& hook_name : hook_names) {
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std::filesystem::path hook_path = package_dir / "hooks" / hook_name;
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std::ofstream hook_file(hook_path);
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if (hook_file.is_open()) {
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hook_file << "#!/bin/sh\n";
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hook_file << "# " << hook_name << " hook for " << package_name << "\n";
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hook_file << "# This is a template. Modify as needed.\n\n";
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hook_file << "# Exit with non-zero status to indicate failure\n";
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hook_file << "exit 0\n";
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hook_file.close();
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// Make the hook file executable
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chmod(hook_path.c_str(), 0755);
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} else {
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dpm_log(LOG_ERROR, ("Failed to create hook file: " + hook_path.string()).c_str());
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}
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}
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}
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// Create basic metadata files
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try {
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std::filesystem::path metadata_dir = package_dir / "metadata";
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// Create NAME file
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{
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std::ofstream name_file(metadata_dir / "NAME");
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if (name_file.is_open()) {
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name_file << package_name;
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name_file.close();
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}
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}
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// Create VERSION file
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{
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std::ofstream version_file(metadata_dir / "VERSION");
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if (version_file.is_open()) {
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version_file << package_version;
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version_file.close();
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}
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}
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// Create ARCHITECTURE file
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{
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std::ofstream arch_file(metadata_dir / "ARCHITECTURE");
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if (arch_file.is_open()) {
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arch_file << architecture;
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arch_file.close();
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}
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}
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// Create empty placeholder files for other metadata
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std::vector<std::string> metadata_files = {
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"AUTHOR", "MAINTAINER", "DEPENDENCIES", "DESCRIPTION",
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"CONTENTS_MANIFEST_DIGEST", "LICENSE", "PACKAGE_DIGEST",
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"HOOKS_DIGEST", "PROVIDES", "REPLACES", "SOURCE", "CHANGELOG"
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};
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for (const auto& file_name : metadata_files) {
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std::ofstream metadata_file(metadata_dir / file_name);
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metadata_file.close();
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}
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dpm_log(LOG_INFO, "Created metadata files");
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} catch (const std::exception& e) {
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dpm_log(LOG_ERROR, ("Failed to create metadata files: " + std::string(e.what())).c_str());
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return 1;
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}
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dpm_log(LOG_INFO, "Package staging completed successfully");
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dpm_log(LOG_INFO, ("Package staged at: " + package_dir.string()).c_str());
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dpm_log(LOG_INFO, "Next steps:");
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dpm_log(LOG_INFO, "1. Edit metadata files to provide package information");
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dpm_log(LOG_INFO, "2. Update CONTENTS_MANIFEST_DIGEST to mark controlled/non-controlled files");
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dpm_log(LOG_INFO, "3. Customize hook scripts as needed");
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return 0;
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}
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