relocatability fixes for ruby and gem (#322)

Refs https://github.com/teaxyz/cli/issues/374

projects/ruby-lang.org/mkconfig.rb.diff

@@ -0,0 +1,28 @@
+diff --git a/tool/mkconfig.rb b/tool/mkconfig.rb
+index e6d61c5..1517669 100755
+--- a/tool/mkconfig.rb
++++ b/tool/mkconfig.rb
+@@ -73,6 +73,7 @@ File.foreach "config.status" do |line|
+     when /^sitearch$/; val = '$(arch)' if val.empty?
+     when /^DESTDIR$/; next
+     when /RUBYGEMS/; next
++    when /^sysconfdir$/; val = '$(kegdir)/etc'
+     end
+     case val
+     when /^\$\(ac_\w+\)$/; next
+@@ -191,6 +192,7 @@ module RbConfig
+ ]
+ print "  # Ruby installed directory.\n"
+ print "  TOPDIR = File.dirname(__FILE__).chomp!(#{relative_archdir.dump})\n"
++print "  KEGDIR = TOPDIR ? File.dirname(TOPDIR) : nil\n"
+ print "  # DESTDIR on make install.\n"
+ print "  DESTDIR = ", (drive ? "TOPDIR && TOPDIR[/\\A[a-z]:/i] || " : ""), "'' unless defined? DESTDIR\n"
+ print <<'ARCH' if universal
+@@ -293,6 +295,7 @@ print <<EOS
+   CONFIG["platform"] = #{platform || '"$(arch)"'}
+   CONFIG["archdir"] = "$(rubyarchdir)"
+   CONFIG["topdir"] = File.dirname(__FILE__)
++  CONFIG["kegdir"] = KEGDIR || "$(prefix)"
+   # Almost same with CONFIG. MAKEFILE_CONFIG has other variable
+   # reference like below.
+   #

projects/ruby-lang.org/package.yml

@@ -16,16 +16,13 @@ build:
     gnu.org/gettext: ^0.21
     tea.xyz/gx/cc: c99
     tea.xyz/gx/make: '*'
+    gnu.org/patch: '*'
   script: |
+    patch -p1 < props/mkconfig.rb.diff
+
     ./configure --prefix="{{prefix}}" --enable-load-relative --disable-rubygems
     make --jobs {{hw.concurrency}} install
 
-    cd "{{prefix}}/lib/ruby/{{version.major}}.{{version.minor}}.0/rubygems"
-
-    # use the GEM_PATH we want
-    sed -i.bak -e 's;@default_dir ||=.*;@default_dir ||= File.expand_path(File.join(__FILE__, "../../../../../../gems", RbConfig::CONFIG["ruby_version"]));' defaults.rb
-    rm defaults.rb.bak
-
     cd "{{prefix}}/bin"
 
     # we provide these as `rubygems.org`
@@ -37,6 +34,19 @@ build:
       sed -i.bak -e 's_#!{{prefix}}/bin/ruby_#!/usr/bin/env ruby_' $shim
       rm $shim.bak
     done
+
+    cd ../lib/ruby/{{version.major}}.{{version.minor}}.0
+
+    # ruby itself provides the gems for these and we don’t want that
+    # we want to pkg them ourselves as part of rubygems.org
+    for x in bundler rubygems bundler.rb rubygems.rb; do
+      if test -d $x; then
+        rm -rf $x
+      else
+        rm $x
+      fi
+      ln -s ../../../../rubygems.org/v\*/lib/$x
+    done
   env:
     shims:
       - erb
@@ -54,9 +64,12 @@ test:
     tea.xyz/gx/make: '*'
   script: |
     ruby -e 'puts "Hello World!"'
-    gem install hexapdf -v 0.28.0
-    hexapdf version
+    gem install hexapdf -v 0.28.0 --bindir=. --no-user-install
+    ./hexapdf version
     test -d "{{tea.prefix}}"/ruby-lang.org/gems/{{version.major}}.{{version.minor}}.0/gems/hexapdf-0.28.0
+    gem install bundle
+    test -d ~/.gem/ruby/{{version.major}}.{{version.minor}}.0/gems/bundle-0.0.1
+    test -f ~/.local/bin/bundle
 
 provides:
   - bin/erb

projects/rubygems.org/fit-n-finish.patch

@@ -0,0 +1,203 @@
+diff --git a/lib/rubygems.rb b/lib/rubygems.rb
+index e42aca8..84128e1 100644
+--- a/lib/rubygems.rb
++++ b/lib/rubygems.rb
+@@ -297,10 +297,12 @@ def self.binary_mode
+   ##
+   # The path where gem executables are to be installed.
+
+-  def self.bindir(install_dir=Gem.dir)
+-    return File.join install_dir, "bin" unless
+-      install_dir.to_s == Gem.default_dir.to_s
+-    Gem.default_bindir
++  def self.bindir(install_dir=nil)
++    if install_dir
++      File.join install_dir, "bin"
++    else
++      Gem.default_bindir
++    end
+   end
+
+   ##
+diff --git a/lib/rubygems/config_file.rb b/lib/rubygems/config_file.rb
+index 4aa8b4d..8354c08 100644
+--- a/lib/rubygems/config_file.rb
++++ b/lib/rubygems/config_file.rb
+@@ -62,12 +62,7 @@ class Gem::ConfigFile
+   # :stopdoc:
+
+   SYSTEM_CONFIG_PATH =
+-    begin
+-      require "etc"
+-      Etc.sysconfdir
+-    rescue LoadError, NoMethodError
+-      RbConfig::CONFIG["sysconfdir"] || "/etc"
+-    end
++    RbConfig::CONFIG["sysconfdir"] || "/etc"
+
+   # :startdoc:
+
+diff --git a/lib/rubygems/defaults.rb b/lib/rubygems/defaults.rb
+index 8daff0b..1fab83c 100644
+--- a/lib/rubygems/defaults.rb
++++ b/lib/rubygems/defaults.rb
+@@ -20,13 +20,7 @@ def self.default_sources
+   # specified in the environment
+
+   def self.default_spec_cache_dir
+-    default_spec_cache_dir = File.join Gem.user_home, ".gem", "specs"
+-
+-    unless File.exist?(default_spec_cache_dir)
+-      default_spec_cache_dir = File.join Gem.data_home, "gem", "specs"
+-    end
+-
+-    default_spec_cache_dir
++    File.join Gem.data_home, "specs"
+   end
+
+   ##
+@@ -34,7 +28,7 @@ def self.default_spec_cache_dir
+   # specified in the environment
+
+   def self.default_dir
+-    @default_dir ||= File.join(RbConfig::CONFIG["rubylibprefix"], "gems", RbConfig::CONFIG["ruby_version"])
++    @default_dir ||= File.expand_path(File.join(__FILE__, "../../../../../ruby-lang.org/gems", RbConfig::CONFIG["ruby_version"]))
+   end
+
+   ##
+@@ -100,8 +94,7 @@ def self.user_home
+   # Path for gems in the user's home directory
+
+   def self.user_dir
+-    gem_dir = File.join(Gem.user_home, ".gem")
+-    gem_dir = File.join(Gem.data_home, "gem") unless File.exist?(gem_dir)
++    gem_dir = Gem.data_home
+     parts = [gem_dir, ruby_engine]
+     parts << RbConfig::CONFIG["ruby_version"] unless RbConfig::CONFIG["ruby_version"].empty?
+     File.join parts
+@@ -111,18 +104,17 @@ def self.user_dir
+   # The path to standard location of the user's configuration directory.
+
+   def self.config_home
+-    @config_home ||= (ENV["XDG_CONFIG_HOME"] || File.join(Gem.user_home, ".config"))
++    @config_home ||= (ENV["XDG_CONFIG_HOME"] || File.join(Gem.user_home, ".gem"))
+   end
+
+   ##
+   # Finds the user's config file
+
+   def self.find_config_file
+-    gemrc = File.join Gem.user_home, ".gemrc"
+-    if File.exist? gemrc
+-      gemrc
++    @gemrc = if ENV["XDG_CONFIG_HOME"]
++      File.join ENV["XDG_CONFIG_HOME"], "gemrc"
+     else
+-      File.join Gem.config_home, "gem", "gemrc"
++      File.join Gem.user_home, ".gemrc"
+     end
+   end
+
+@@ -137,7 +129,7 @@ def self.config_file
+   # The path to standard location of the user's state file.
+
+   def self.state_file
+-    @state_file ||= File.join(Gem.state_home, "gem", "last_update_check").tap(&Gem::UNTAINT)
++    @state_file ||= File.join(Gem.state_home, "last_update_check").tap(&Gem::UNTAINT)
+   end
+
+   ##
+@@ -151,14 +143,18 @@ def self.cache_home
+   # The path to standard location of the user's data directory.
+
+   def self.data_home
+-    @data_home ||= (ENV["XDG_DATA_HOME"] || File.join(Gem.user_home, ".local", "share"))
++    @data_home ||= if ENV["XDG_DATA_HOME"]
++      File.join(ENV["XDG_DATA_HOME"], "gem")
++    else
++      File.join(Gem.user_home, ".gem")
++    end
+   end
+
+   ##
+   # The path to standard location of the user's state directory.
+
+   def self.state_home
+-    @data_home ||= (ENV["XDG_STATE_HOME"] || File.join(Gem.user_home, ".local", "state"))
++    File.join(Gem.data_home, "state")
+   end
+
+   ##
+@@ -197,7 +193,7 @@ def self.default_exec_format
+   # The default directory for binaries
+
+   def self.default_bindir
+-    RbConfig::CONFIG["bindir"]
++    "/usr/local/bin"
+   end
+
+   def self.ruby_engine
+@@ -208,26 +204,14 @@ def self.ruby_engine
+   # The default signing key path
+
+   def self.default_key_path
+-    default_key_path = File.join Gem.user_home, ".gem", "gem-private_key.pem"
+-
+-    unless File.exist?(default_key_path)
+-      default_key_path = File.join Gem.data_home, "gem", "gem-private_key.pem"
+-    end
+-
+-    default_key_path
++    File.join Gem.data_home, "private-key.pem"
+   end
+
+   ##
+   # The default signing certificate chain path
+
+   def self.default_cert_path
+-    default_cert_path = File.join Gem.user_home, ".gem", "gem-public_cert.pem"
+-
+-    unless File.exist?(default_cert_path)
+-      default_cert_path = File.join Gem.data_home, "gem", "gem-public_cert.pem"
+-    end
+-
+-    default_cert_path
++    File.join Gem.data_home, "public-cert.pem"
+   end
+
+   ##
+@@ -267,7 +251,10 @@ def self.vendor_dir # :nodoc:
+   # end
+
+   def self.operating_system_defaults
+-    {}
++    {
++      'install' => '--no-rdoc --no-ri --env-shebang --user-install',
++      'update' => '--no-rdoc --no-ri --env-shebang --user-install'
++    }
+   end
+
+   ##
+
+diff --git a/lib/rubygems/installer.rb b/lib/rubygems/installer.rb
+index 9fbb282..8fa8bd9 100644
+--- a/lib/rubygems/installer.rb
++++ b/lib/rubygems/installer.rb
+@@ -190,7 +190,7 @@ def initialize(package, options={})
+
+     if options[:user_install]
+       @gem_home = Gem.user_dir
+-      @bin_dir = Gem.bindir gem_home unless options[:bin_dir]
++      @bin_dir = File.join(Gem.user_home, ".local/bin") unless options[:bin_dir]
+       @plugins_dir = Gem.plugindir(gem_home)
+       check_that_user_bin_dir_is_in_path
+     end
+@@ -953,7 +953,7 @@ def write_cache_file
+
+   def ensure_writable_dir(dir) # :nodoc:
+     begin
+-      Dir.mkdir dir, *[options[:dir_mode] && 0755].compact
++      FileUtils.mkdir_p dir, *[options[:dir_mode] && 0755].compact
+     rescue SystemCallError
+       raise unless File.directory? dir
+     end

projects/rubygems.org/package.yml

@@ -9,18 +9,31 @@ dependencies:
   ruby-lang.org: '>=2.3'
 
 build:
+  dependencies:
+    gnu.org/patch: '*'
   script: |
-    ruby setup.rb --prefix={{prefix}} --env-shebang
+    ruby setup.rb --prefix={{prefix}} --env-shebang --no-ri --no-rdoc
+    cd "{{prefix}}"
+    patch -p1 < "$SRCROOT"/props/fit-n-finish.patch
+
+runtime:
+  env:
+    # HACK that is only required for this ruby package
+    # since we cannot use `gem` to build `gem` itself
+    RUBYLIB: ${{prefix}}/lib
 
 test:
   dependencies:
     tea.xyz/gx/cc: c99
     tea.xyz/gx/make: '*'
+  env:
+    HOME: $PWD
   script: |
     gem install awesome_print
     ruby -e 'require "rubygems"' -e 'require "awesome_print"' -e'ap $LOAD_PATH'
+    #TODO test -d ~/.gem/ruby/{{deps.ruby.version.major}}.{{deps.ruby.version.minor}}.0/gems/hexapdf-0.28.0
     gem install hexapdf
-    hexapdf version
+    ~/.local/bin/hexapdf version
 
 provides:
   - bin/bundle