Class: CLI::UI::StdoutRouter::Capture
- Inherits:
-
Object
- Object
- CLI::UI::StdoutRouter::Capture
- Defined in:
- lib/cli/ui/stdout_router.rb
Instance Attribute Summary collapse
-
#stderr ⇒ Object
readonly
Returns the value of attribute stderr.
-
#stdout ⇒ Object
readonly
Returns the value of attribute stdout.
Class Method Summary collapse
Instance Method Summary collapse
-
#initialize(*block_args, with_frame_inset: true, &block) ⇒ Capture
constructor
A new instance of Capture.
- #run ⇒ Object
Constructor Details
#initialize(*block_args, with_frame_inset: true, &block) ⇒ Capture
Returns a new instance of Capture.
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# File 'lib/cli/ui/stdout_router.rb', line 102 def initialize(*block_args, with_frame_inset: true, &block) @with_frame_inset = with_frame_inset @block_args = block_args @block = block end |
Instance Attribute Details
#stderr ⇒ Object (readonly)
Returns the value of attribute stderr.
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# File 'lib/cli/ui/stdout_router.rb', line 108 def stderr @stderr end |
#stdout ⇒ Object (readonly)
Returns the value of attribute stdout.
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# File 'lib/cli/ui/stdout_router.rb', line 108 def stdout @stdout end |
Class Method Details
.with_stdin_masked ⇒ Object
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# File 'lib/cli/ui/stdout_router.rb', line 81 def self.with_stdin_masked @m.synchronize do if @active_captures.zero? @saved_stdin = $stdin $stdin, w = IO.pipe $stdin.close w.close end @active_captures += 1 end yield ensure @m.synchronize do @active_captures -= 1 if @active_captures.zero? $stdin = @saved_stdin end end end |
Instance Method Details
#run ⇒ Object
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# File 'lib/cli/ui/stdout_router.rb', line 110 def run require 'stringio' StdoutRouter.assert_enabled! out = StringIO.new err = StringIO.new prev_frame_inset = Thread.current[:no_cliui_frame_inset] prev_hook = Thread.current[:cliui_output_hook] if Thread.current.respond_to?(:report_on_exception) Thread.current.report_on_exception = false end self.class.with_stdin_masked do Thread.current[:no_cliui_frame_inset] = !@with_frame_inset Thread.current[:cliui_output_hook] = ->(data, stream) do case stream when :stdout then out.write(data) when :stderr then err.write(data) else raise end false # suppress writing to terminal end begin @block.call(*@block_args) ensure @stdout = out.string @stderr = err.string end end ensure Thread.current[:cliui_output_hook] = prev_hook Thread.current[:no_cliui_frame_inset] = prev_frame_inset end |