Add scripts to generate ruby packages.

This is required to automatically create ruby packages for flutter
testing.

Bug: flutter/flutter#122057
Bug: flutter/flutter#125812
Bug: flutter/flutter#133096

AUTHORS

@@ -5,3 +5,4 @@
 
 Google Inc.
 Chromium authors.
+Stephan Nordnes Eriksen <stephan-nordnes-eriksen>.

cipd_packages/ruby/README

@@ -0,0 +1,24 @@
+# Ruby at Flutter
+
+The scripts in this folder are used to build and package
+ruby as a CIPD package. This package is intended for
+flutter/flutter repository testing.
+
+The scripts inside ruby_ship are based on the scripts
+from https://github.com/stephan-nordnes-eriksen/ruby_ship
+with changes to adapt them to the flutter use cases.
+
+
+# Updating to new ruby versions.
+
+Update `ruby_version.txt` with the major version
+and the file name. E.g. `3.1,ruby-3.1.4.tar.gz` to
+change the version of ruby to build.
+
+# Installing cocoapods.
+
+The CIPD package will bundle cocoapods it corresponding
+wrapper scripts.
+
+Update `cococapods_version.txt` with the version of cocoapods
+to use.

cipd_packages/ruby/build.sh

@@ -0,0 +1,52 @@
+#!/bin/bash
+# Copyright 2023 The Flutter Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# Fetches corresponding dart sdk from CIPD for different platforms, builds
+# an executable binary of codesign to `build` folder.
+#
+# This build script will be triggered on Mac code signing machines.
+
+set -e
+set -x
+
+# Get versions from config files.
+RUBY_MAJOR_VERSION=$(cat ruby_version.txt | cut -d ',' -f 1)
+RUBY_FILE_NAME=$(cat ruby_version.txt | cut -d ',' -f 2)
+COCOAPODS_VERSION=$(cat cocoapods_version.txt)
+
+# Cleanup ruby_ship/bin directory if it exists.
+rm -rf ruby_ship/bin
+pushd ruby_ship
+# Download a ruby version
+curl https://cache.ruby-lang.org/pub/ruby/$RUBY_MAJOR_VERSION/$RUBY_FILE_NAME -o ../$RUBY_FILE_NAME
+# Install brew dependencies
+brew install --build-from-source gdbm
+brew install --build-from-source gmp
+brew install --build-from-source libffi
+brew install libyaml
+brew install --build-from-source readline
+brew install --build-from-source openssl@3
+brew install --build-from-source m4
+# Change directory to ruby_ship checkout
+./tools/ruby_ship_build.sh ../$RUBY_FILE_NAME
+bin/ruby tools/auto_relink_dylibs.rb
+# Remove signatures
+ls bin/shipyard/darwin_ruby/dylibs/* | xargs codesign --remove-signature
+# Resign with adhoc
+ls bin/shipyard/darwin_ruby/dylibs/* | xargs codesign --force -s -
+codesign --remove-signature bin/shipyard/darwin_ruby/bin/ruby
+codesign --force -s - bin/shipyard/darwin_ruby/bin/ruby
+sed -i'' -e 's/bindir="\${0%\/\*}"/&\nLIBSPATH="\$( cd -- "\$(dirname "\$0")" >\/dev\/null 2>\&1 ; pwd -P )\/..\/dylibs"\nexport DYLD_FALLBACK_LIBRARY_PATH=\$LIBSPATH:\$DYLD_FALLBACK_LIBRARY_PATH/' bin/shipyard/darwin_ruby/bin/gem
+sed -i'' -e 's/bindir="\${0%\/\*}"/&\nLIBSPATH="\$( cd -- "\$(dirname "\$0")" >\/dev\/null 2>\&1 ; pwd -P )\/..\/dylibs"\nexport DYLD_FALLBACK_LIBRARY_PATH=\$LIBSPATH:\$DYLD_FALLBACK_LIBRARY_PATH/' bin/shipyard/darwin_ruby/bin/bundler
+sed -i'' -e 's/bindir="\${0%\/\*}"/&\nLIBSPATH="\$( cd -- "\$(dirname "\$0")" >\/dev\/null 2>\&1 ; pwd -P )\/..\/dylibs"\nexport DYLD_FALLBACK_LIBRARY_PATH=\$LIBSPATH:\$DYLD_FALLBACK_LIBRARY_PATH/' bin/shipyard/darwin_ruby/bin/bundle
+bin/shipyard/darwin_ruby/bin/bundle --version
+bin/shipyard/darwin_ruby/bin/bundler --version
+bin/shipyard/darwin_ruby/bin/gem --version
+
+# Post install cocoapod
+bin/shipyard/darwin_gem.sh install cocoapods -v $COCOAPODS_VERSION
+sed -i'' -e 's/bindir="\${0%\/\*}"/&\nLIBSPATH="\$( cd -- "\$(dirname "\$0")" >\/dev\/null 2>\&1 ; pwd -P )\/..\/dylibs"\nexport DYLD_FALLBACK_LIBRARY_PATH=\$LIBSPATH:\$DYLD_FALLBACK_LIBRARY_PATH/' bin/shipyard/darwin_ruby/bin/pod
+bin/shipyard/darwin_ruby/bin/pod --version
+popd

cipd_packages/ruby/ruby_ship/tools/auto_relink_dylibs.rb

@@ -0,0 +1,70 @@
+# Copyright 2023 The Flutter Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+require "fileutils"
+
+@new_dylib_path = File.join("bin", "shipyard", "darwin_ruby", "dylibs")
+
+@current_dir = FileUtils.pwd
+
+FileUtils.mkdir_p(@new_dylib_path)
+
+def fix_dylib_for_file(file)
+	results = `otool -L "#{file}"` #Will get information about which dylibs to link
+
+	if results.is_a?(String) && results != "" && !results.include?("is not an object file")  && !results.include?("Assertion failed:")
+		# puts "---------------------------------"
+		puts "--RELINKING--: #{file}"
+		# puts "---------------------------------"
+		expanded = File.expand_path(file)
+
+		#Setting new ID for this if needed
+		id_path = File.join("bin", "shipyard", "darwin_ruby", expanded.split(File.join(@current_dir, "bin", "shipyard","darwin_ruby"))[-1])
+		id_reset_results = `install_name_tool -id #{id_path} #{file} 2> /dev/null` #Will link the current file to itself
+
+		lines = results.split("\n")
+		lines = [] unless lines
+		itterate = lines[1..-1]
+		itterate = [] unless itterate
+
+
+		itterate.each do |libfile_line|
+			libfile = libfile_line.split(" (compatibility version")[0].strip
+			libfile = libfile.split("(")[0]
+
+			next if libfile.include?(@new_dylib_path) #We have already fixed this one
+			next if libfile.include?("/usr/lib/") #These are global and assumed to be present on all versions of osx
+			next if libfile.include?("/System/Library/")#Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
+
+			new_libfile = File.join(@new_dylib_path, libfile.split(File.join("",""))[-1])
+
+			unless File.file?(new_libfile)
+				FileUtils.copy(libfile, new_libfile)
+				puts "--COPIED-- #{new_libfile}"
+				fix_dylib_for_file(new_libfile)
+			end
+
+			relink_command_results = `install_name_tool -change #{libfile} #{new_libfile} #{file} 2> /dev/null` #Will relink external library
+			puts "Linked: #{new_libfile} to #{file}"
+
+			if relink_command_results != "" && !relink_command_results.include?("error:")
+				puts "relinked in #{file} link: #{libfile} to #{new_libfile}"
+			end
+		end
+	end
+end
+
+puts File.dirname(File.expand_path($0))
+
+folders = [File.expand_path(File.join(File.dirname(File.expand_path($0)), "..", "bin", "shipyard", "darwin_ruby"))]
+
+full = folders.map{|f| Dir[File.join(f, '**', '*')]}
+actual_files = full.flatten(1).uniq.select{|e| File.file? e}
+
+
+actual_files.each do |file|
+	fix_dylib_for_file(file)
+end
+
+puts "Relinking of dylib done"