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warn users if rfile == outfile, refs #1117

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This commit is contained in:
Maximilian Hils 2016-05-21 15:25:57 -07:00
parent e6c2e012a5
commit c160a47e51
1 changed files with 12 additions and 0 deletions
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12
mitmproxy/cmdline.py
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@ -165,6 +165,18 @@ def get_common_options(options):
raise configargparse.ArgumentTypeError(e.message)
setheaders.append(p)
if options.outfile and options.outfile[0] == options.rfile:
if options.outfile[1] == "wb":
raise configargparse.ArgumentTypeError(
"Cannot use '{}' for both reading and writing flows. "
"Are you looking for --afile?".format(options.rfile)
)
else:
raise configargparse.ArgumentTypeError(
"Cannot use '{}' for both reading and appending flows. "
"That would trigger an infinite loop."
)
return dict(
app=options.app,
app_host=options.app_host,