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ui: add a 'stacklevel' argument to 'develwarn'

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This allows helper functions (like deprecation warning) to prepare a devel
warning for higher up in the stack. The argument is named after the one in the
Python's 'warning,warn' function.
This commit is contained in:
Pierre-Yves David 2015-12-05 23:05:33 -08:00
parent 934b9df7b4
commit 9e2713890f
1 changed files with 10 additions and 4 deletions
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14
mercurial/ui.py
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@ -1044,15 +1044,21 @@ class ui(object):
'''
return msg
def develwarn(self, msg):
"""issue a developer warning message"""
def develwarn(self, msg, stacklevel=1):
"""issue a developer warning message
Use 'stacklevel' to report the offender some layers further up in the
stack.
"""
msg = 'devel-warn: ' + msg
stacklevel += 1 # get in develwarn
if self.tracebackflag:
util.debugstacktrace(msg, 2, self.ferr, self.fout)
util.debugstacktrace(msg, stacklevel, self.ferr, self.fout)
else:
curframe = inspect.currentframe()
calframe = inspect.getouterframes(curframe, 2)
self.write_err('%s at: %s:%s (%s)\n' % ((msg,) + calframe[2][1:4]))
self.write_err('%s at: %s:%s (%s)\n'
% ((msg,) + calframe[stacklevel][1:4]))
class paths(dict):
"""Represents a collection of paths and their configs.