rake sync_tool

Author: hsbt

lib/core_assertions.rb

@@ -362,7 +362,10 @@ def assert_separately(args, file = nil, line = nil, src, ignore_stderr: nil, **o
 #{line -= __LINE__; src}
 eom
         args = args.dup
-        args.insert((Hash === args.first ? 1 : 0), "-w", "--disable=gems", *$:.map {|l| "-I#{l}"})
+        # -W:no-experimental after the -w, which would otherwise turn the category
+        # back on.  The option itself needs 2.7 or later.
+        warn_opts = RUBY_VERSION >= "2.7." ? ["-w", "-W:no-experimental"] : ["-w"]
+        args.insert((Hash === args.first ? 1 : 0), *warn_opts, "--disable=gems", *$:.map {|l| "-I#{l}"})
         args << "--debug" if RUBY_ENGINE == 'jruby' # warning: tracing (e.g. set_trace_func) will not capture all events without --debug flag
         # power_assert 3 requires ruby 3.1 or later
         args << "-W:no-experimental" if ("2.7."..."3.1.").cover?(RUBY_VERSION)

lib/envutil.rb

@@ -43,6 +43,16 @@ def rubybin
 
   RUBYLIB = ENV["RUBYLIB"]
 
+  # Ruby::Box prints this at startup of every child process when RUBY_BOX=1
+  # is inherited from the environment.
+  BOX_EXPERIMENTAL_WARNING = /^.*: warning: Ruby::Box is experimental, and the behavior may change in the future!\nSee https:\/\/docs\.ruby-lang\.org\/\S+ for known issues, etc\.\n/
+
+  def strip_box_warning(str)
+    # on the bytes, since captured output is not always valid in its encoding
+    str.b.gsub(BOX_EXPERIMENTAL_WARNING, "").force_encoding(str.encoding) if str
+  end
+  module_function :strip_box_warning
+
   class << self
     attr_accessor :timeout_scale
     attr_reader :original_internal_encoding, :original_external_encoding,
@@ -266,6 +276,10 @@ def invoke_ruby(args, stdin_data = "", capture_stdout = false, capture_stderr =
       out_p.close if capture_stdout
       err_p.close if capture_stderr && capture_stderr != :merge_to_stdout
       status ||= Process.wait2(pid)[1]
+      if ENV["RUBY_BOX"] == "1" and !child_env.key?("RUBY_BOX")
+        stdout = strip_box_warning(stdout) if capture_stderr == :merge_to_stdout
+        stderr = strip_box_warning(stderr)
+      end
       stdout = stdout_filter.call(stdout) if stdout_filter
       stderr = stderr_filter.call(stderr) if stderr_filter
       if timeout_error
@@ -351,8 +365,6 @@ def under_gc_stress(stress = true)
   module_function :under_gc_stress
 
   def under_gc_compact_stress(val = :empty, &block)
-    raise "compaction doesn't work well on s390x. Omit the test in the caller." if RUBY_PLATFORM =~ /s390x/ # https://github.com/ruby/ruby/pull/5077
-
     if GC.respond_to?(:auto_compact)
       auto_compact = GC.auto_compact
       GC.auto_compact = val