-def RunPipe(pipeline, infile=None, outfile=None,
- capture=False, oneline=False, hide_stderr=False):
+class CommandResult:
+ """A class which captures the result of executing a command.
+
+ Members:
+ stdout: stdout obtained from command, as a string
+ stderr: stderr obtained from command, as a string
+ return_code: Return code from command
+ exception: Exception received, or None if all ok
+ """
+ def __init__(self):
+ self.stdout = None
+ self.stderr = None
+ self.combined = None
+ self.return_code = None
+ self.exception = None
+
+ def __init__(self, stdout='', stderr='', combined='', return_code=0,
+ exception=None):
+ self.stdout = stdout
+ self.stderr = stderr
+ self.combined = combined
+ self.return_code = return_code
+ self.exception = exception
+
+
+# This permits interception of RunPipe for test purposes. If it is set to
+# a function, then that function is called with the pipe list being
+# executed. Otherwise, it is assumed to be a CommandResult object, and is
+# returned as the result for every RunPipe() call.
+# When this value is None, commands are executed as normal.
+test_result = None
+
+def RunPipe(pipe_list, infile=None, outfile=None,
+ capture=False, capture_stderr=False, oneline=False,
+ raise_on_error=True, cwd=None, **kwargs):