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@@ -474,8 +474,11 @@ def markup_to_pager(stream):
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def check_command_status(arguments):
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"""Return True if command returns 0."""
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477
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- return subprocess.call(
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- arguments, stdout=subprocess.PIPE, stderr=subprocess.PIPE) == 0
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+ try:
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+ return subprocess.call(
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+ arguments, stdout=subprocess.PIPE, stderr=subprocess.PIPE) == 0
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+ except OSError:
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+ return False
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484
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def revision_control_diff(path):
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@@ -484,6 +487,8 @@ def revision_control_diff(path):
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return subprocess.Popen(['git', 'diff'], stdout=subprocess.PIPE).stdout
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elif check_command_status(['svn', 'info']):
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return subprocess.Popen(['svn', 'diff'], stdout=subprocess.PIPE).stdout
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+ elif check_command_status(['hg', 'summary']):
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+ return subprocess.Popen(['hg', 'diff'], stdout=subprocess.PIPE).stdout
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def decode(line):
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