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dispatch: only do __import__(debugger) when a debugger is requested
When having ui.debugger=somedebugger in one's ~/.hgrc, this then somedebugger would be imported for every hg command. With this patch, this import only happens if the --debugger parameter is passed.
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@ -108,13 +108,17 @@ def _runcatch(req):
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# if we are in HGPLAIN mode, then disable custom debugging
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debugger = ui.config("ui", "debugger")
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debugmod = pdb
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if not debugger or ui.plain():
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debugger = 'pdb'
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elif '--debugger' in req.args:
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# This import can be slow for fancy debuggers, so only
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# do it when absolutely necessary, i.e. when actual
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# debugging has been requested
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try:
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debugmod = __import__(debugger)
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except ImportError:
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debugmod = pdb
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pass # Leave debugmod = pdb
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debugtrace[debugger] = debugmod.set_trace
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debugmortem[debugger] = debugmod.post_mortem
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