command.rb in backticks-0.5.0

- old
+ new

@@ -19,12 +19,15 @@
 
     # @return [Integer] child process ID
     attr_reader :pid
 
     # @return [String] all data captured (so far) from child's stdin/stdout/stderr
-    attr_reader :captured_input, :captured_output, :captured_error, :status
+    attr_reader :captured_input, :captured_output, :captured_error
 
+    # @return [nil,Process::Status] result of command if it has ended; nil if still running
+    attr_reader :status
+
     # Watch a running command.
     def initialize(pid, stdin, stdout, stderr)
       @pid = pid
       @stdin = stdin
       @stdout = stdout
@@ -91,15 +94,15 @@
       ready, _, _ = IO.select(streams, [], [], 1)
 
       # proxy STDIN to child's stdin
       if ready && ready.include?(STDIN)
         input = STDIN.readpartial(CHUNK) rescue nil
-        @captured_input << input
         if input
+          @captured_input << input
           @stdin.write(input)
         else
           # our own STDIN got closed; proxy this fact to the child
-          @stdin.close
+          @stdin.close unless @stdin.closed?
         end
       end
 
       # capture child's stdout and maybe proxy to STDOUT
       if ready && ready.include?(@stdout)