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# frozen_string_literal: true
require_relative "toolchain_info/data"
module RbSys
# A class to get information about the Rust toolchains, and how they map to
# Ruby platforms.
#
# @example
# RbSys::ToolchainInfo.new("x86_64-unknown-linux-gnu").ruby_platform # => "x86_64-linux"
# RbSys::ToolchainInfo.new("x86_64-unknown-linux-gnu").supported? # => true
# RbSys::ToolchainInfo.new("x86_64-unknown-linux-gnu")
class ToolchainInfo
attr_reader :platform, :gem_platform, :rust_target, :rake_compiler_dock_cc, :supported, :rake_compiler_dock_image, :docker_platform
class << self
# Get all known toolchains.
#
# @return [Array<RbSys::ToolchainInfo>]
def all
@all ||= DATA.keys.map { |k| new(k) }
end
# Get all supported toolchains.
#
# @return [Array<RbSys::ToolchainInfo>]
def supported
@supported ||= all.select(&:supported?)
end
# Get the toolchain for the current platform.
#
# @return [RbSys::ToolchainInfo]
def local
@current ||= new(RbConfig::CONFIG["arch"])
end
end
# Create a new toolchain info object.
#
# @param platform [String] The platform to get information about.
def initialize(platform)
@platform = platform
@gem_platform = Gem::Platform.new(platform)
data = DATA[platform] || DATA["#{gem_platform.cpu}-#{gem_platform.os}"] || raise(ArgumentError, "unknown ruby platform: #{platform.inspect}")
@rust_target = data["rust-target"]
@rake_compiler_dock_cc = data["rake-compiler-dock"]["cc"]
@supported = data["supported"]
@rake_compiler_dock_image = "rbsys/#{platform}:#{RbSys::VERSION}"
@docker_platform = data["docker-platform"]
end
# Whether this toolchain is supported.
#
# @return [Boolean]
def supported?
@supported
end
# String representation of the toolchain.
#
# @return [String]
def to_s
"#{gem_platform.cpu}-#{gem_platform.os}"
end
# Compare two toolchains.
#
# @param other [RbSys::ToolchainInfo]
# @return [Boolean]
def ==(other)
@gem_platform == other.gem_platform
end
end
end
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