1require 'mkmf'
 2
 3# Check if Rust is available
 4def rust_available?
 5  system('cargo --version > /dev/null 2>&1')
 6end
 7
 8if rust_available?
 9  # Use cargo to build the Rust extension
10  system('cargo build --release') or abort 'Cargo build failed'
11  
12  # Copy the built library to the expected location
13  ext_name = 'net_hippie_ext'
14  lib_path = case RUBY_PLATFORM
15             when /darwin/
16               "target/release/lib#{ext_name}.dylib"
17             when /linux/
18               "target/release/lib#{ext_name}.so"
19             when /mingw/
20               "target/release/#{ext_name}.dll"
21             else
22               abort "Unsupported platform: #{RUBY_PLATFORM}"
23             end
24  
25  target_path = "#{ext_name}.#{RbConfig::CONFIG['DLEXT']}"
26  
27  if File.exist?(lib_path)
28    FileUtils.cp(lib_path, target_path)
29    puts "Successfully built Rust extension: #{target_path}"
30  else
31    abort "Rust library not found at: #{lib_path}"
32  end
33  
34  # Create a dummy Makefile since mkmf expects one
35  create_makefile(ext_name)
36else
37  puts "Warning: Rust not available, skipping native extension build"
38  puts "The gem will fall back to pure Ruby implementation"
39  
40  # Create a dummy Makefile that does nothing
41  File.open('Makefile', 'w') do |f|
42    f.puts "all:\n\t@echo 'Skipping Rust extension build'"
43    f.puts "install:\n\t@echo 'Skipping Rust extension install'"
44    f.puts "clean:\n\t@echo 'Skipping Rust extension clean'"
45  end
46end