feat: add Gentoo module to project

Author: initdc

lib/rootfs/distro/gentoo.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+require_relative "../http"
+require_relative "../data"
+require_relative "gentoo/arch"
+require_relative "gentoo/stage3"
+require_relative "gentoo/file"
+require_relative "gentoo/url"
+
+module RootFS
+  module Distro
+    module Gentoo
+    end
+  end
+end

lib/rootfs/distro/gentoo/arch.rb

@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+
+require_relative "../../parse"
+
+module RootFS
+  module Distro
+    module Gentoo
+      extend self
+
+      # https://www.gentoo.org/downloads/
+      ARCH = %w[
+        amd64
+        alpha
+        arm
+        arm64
+        hppa
+        ia64
+        loong
+        mips
+        m68k
+        ppc
+        riscv
+        s390
+        sparc
+        x86
+      ].freeze
+
+      def parse_arch(any)
+        RootFS::Parse._str_in_arr(any, "Gentoo", "arch", ARCH)
+      end
+    end
+  end
+end

lib/rootfs/distro/gentoo/file.rb

@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+require_relative "../gentoo"
+
+module RootFS
+  module Distro
+    module Gentoo
+      extend self
+
+      def files_of(*argv, **opts)
+        arch = argv[0] || opts[:arch] || "amd64"
+        feature = argv[1] || opts[:feature] || ["openrc"]
+
+        url = RootFS::Distro::Gentoo.url_of(arch)
+        return if url.nil?
+
+        hash = Gentoo.parse_feature(feature)
+        return unless hash
+
+        feature = hash[:feature]
+
+        resp = RootFS::HTTP.get(url)
+        body = resp.body
+        files = RootFS::Data.from_gentoo_txt(body, feature)
+        { latest: url, files: files }
+      end
+    end
+  end
+end

lib/rootfs/distro/gentoo/file_test.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+require_relative "file"
+
+class MyClass
+  extend RootFS::Distro::Gentoo
+  include RootFS::Distro::Gentoo
+end
+
+u = MyClass.new
+
+pp u.files_of
+pp u.files_of("arm64", "desktop")
+feat = %w[armv7a hardfp systemd]
+pp u.files_of("arm", feat)

lib/rootfs/distro/gentoo/stage3.rb

@@ -0,0 +1,52 @@
+# frozen_string_literal: true
+
+require_relative "../../parse"
+
+module RootFS
+  module Distro
+    module Gentoo
+      extend self
+
+      # https://www.gentoo.org/downloads/
+      # https://distfiles.gentoo.org/
+      FEATURE = %w[
+        openrc
+        systemd
+        desktop
+        mergedusr
+        hardened
+        nomultilib
+        selinux
+        llvm
+        musl
+        x32
+        armv4tl
+        armv5tel
+        armv6j
+        hardfp
+        armv7a
+        hppa1.1
+        hppa2.0
+        mips2
+        mips3
+        n32
+        n64
+        mipsel2
+        mipsel3
+        power9le
+        ppc64le
+        ppc64
+        ppc
+        lp64
+        lp64d
+        multilib
+        i486
+        i686
+      ].freeze
+
+      def parse_feature(any = "openrc")
+        RootFS::Parse._arr_in_arr(any, "Gentoo", "feature", FEATURE)
+      end
+    end
+  end
+end

lib/rootfs/distro/gentoo/stage3_test.rb

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+require_relative "stage3"
+
+class MyClass
+  extend RootFS::Distro::Gentoo
+  include RootFS::Distro::Gentoo
+end
+
+g = MyClass.new
+
+p g.parse_feature
+p g.parse_feature(%w[desktop systemd])
+feat = %w[armv7a hardfp systemd]
+p g.parse_feature(feat)
+p g.parse_feature(%w[llvm ulibc])

lib/rootfs/distro/gentoo/url.rb

@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+require_relative "../gentoo"
+
+module RootFS
+  module Distro
+    module Gentoo
+      extend self
+
+      # https://www.gentoo.org/downloads/
+      # https://distfiles.gentoo.org/
+
+      URL_TMPL = "https://bouncer.gentoo.org/fetch/root/all/releases/{arch}/autobuilds/latest-stage3.txt"
+
+      def url_of(arch = "amd64")
+        hash = Gentoo.parse_arch(arch)
+        return unless hash
+
+        arch = hash[:arch]
+        URL_TMPL.gsub("{arch}", arch)
+      end
+    end
+  end
+end

lib/rootfs/distro/gentoo/url_test.rb

@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+require_relative "url"
+require_relative "arch"
+
+class MyClass
+  extend RootFS::Distro::Gentoo
+  include RootFS::Distro::Gentoo
+end
+
+u = MyClass.new
+
+MyClass::ARCH.each do |arch|
+  p u.url_of(arch)
+end
+
+p u.url_of("riscv64")