Module: Seedfaker

Defined in:
lib/seedfaker.rb

Defined Under Namespace

Classes: SeedFaker

Constant Summary collapse

NATIVE_CHECKSUM =

@checksum-start CI replaces this with real SHA256 before building gem. Empty = dev (running from source). Filled = production (verify mandatory).

""

Class Method Summary collapse

Class Method Details

.find_library ⇒ Object

@checksum-end



142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
 
# File 'lib/seedfaker.rb', line 142

def self.find_library
  os = case RbConfig::CONFIG["host_os"]
       when /darwin/ then "darwin"
       when /linux/ then "linux"
       when /mswin|mingw|cygwin/ then "windows"
       else RbConfig::CONFIG["host_os"]
       end
  cpu = RbConfig::CONFIG["host_cpu"]
  arch = if cpu.match?(/x86_64|amd64/) then "x86_64"
         elsif cpu.match?(/arm64|aarch64/) then "arm64"
         else cpu
         end
  ext = case os
        when "darwin" then "dylib"
        when "windows" then "dll"
        else "so"
        end
  name = "libseedfaker_ffi.#{ext}"
  target = "#{os}-#{arch}"

  # Gem layout: bin/{os}-{arch}/libseedfaker_ffi.{ext}
  bundled = File.join(__dir__, "..", "bin", target, name)

  if NATIVE_CHECKSUM != ""
    # Production: bundled binary only, verify SHA256, no exceptions.
    raise "seedfaker: bundled library not found at #{bundled}" unless File.exist?(bundled)
    actual = Digest::SHA256.hexdigest(File.binread(bundled))
    unless actual == NATIVE_CHECKSUM
      raise "seedfaker: native library integrity check failed. " \
            "Expected #{NATIVE_CHECKSUM[0, 16]}..., got #{actual[0, 16]}... " \
            "Reinstall the package or verify your installation."
    end
    return bundled
  end

  # Dev: NATIVE_CHECKSUM empty = running from source or flat-layout gem.
  return bundled if File.exist?(bundled)

  project = File.join(__dir__, "..", "..", "..", "rust", "target", "release", name)
  return project if File.exist?(project)

  nil
end