asset_manifest.h

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#pragma once
#include <filesystem/filesystem.h>
#include <hpp/sha1.hpp>
#include <chrono>
#include <string>
 
namespace unravel
{
namespace asset_compiler
{
 
struct asset_manifest
{
    fs::path source_file_path;
    fs::file_time_type::clock::time_point source_timestamp;
    
    std::string source_sha;
    
    
    asset_manifest() = default;
    
    asset_manifest(const fs::path& source_path)
        : source_file_path(source_path)
    {
        fs::error_code ec;
        source_timestamp = fs::last_write_time(source_path, ec);
    }
    
    void compute_source_sha();
};
 
auto get_manifest_path(const fs::path& compiled_asset_path) -> fs::path;
 
auto save_manifest(const fs::path& manifest_path, const asset_manifest& manifest) -> bool;
 
auto load_manifest(const fs::path& manifest_path, asset_manifest& manifest) -> bool;
 
auto is_source_file_changed(const fs::path& source_path, const asset_manifest& manifest) -> bool;
 
} // namespace asset_compiler
} // namespace unravel