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56 lines
1.5 KiB
Python
56 lines
1.5 KiB
Python
#!/usr/bin/env python
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"""Create a short probably-unique string for use as a umid= argument in a
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Foolscap log() call, to make it easier to locate the source code that
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generated the message. The main text of the log message is frequently
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unhelpful for this, and python doesn't make it cheap to compile in the
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filename and line number of logging calls.
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Given a message-unique-ID like 'aXoWcA', make your logging call look like:
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log.msg('OMG badness', level=log.WEIRD, umid='aXoWcA')
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Then later, if this message actually occurs, you can grep your source tree
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for aXoWcA to locate the code that caused it.
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Just stick to the convention that 'umid=' is reserved for this job. It is a
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good idea to make all the logging statements that could provoke an Incident
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(i.e. those at level=log.WEIRD or higher) have umid= arguments, to make it
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easier to write classifier functions for the incident-gatherer.
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"""
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'''
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The following elisp code may be useful:
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(defun insert-umid ()
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(interactive)
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(insert ", umid=\"")
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(call-process "make_umid" nil t)
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(delete-char -1)
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(insert "\"")
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)
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(global-set-key (kbd "C-\`") 'insert-umid)
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'''
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# ' # emacs gets confused by the odd number of single-quotes there
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import os, base64, sys
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def make_id():
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while True:
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m = os.urandom(4) # this gives 6-character message ids
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m = base64.b64encode(m)
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if "/" in m or "+" in m:
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continue
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m = m.replace("=", "")
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break
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return m
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count = 1
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if len(sys.argv) > 1:
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count = int(sys.argv[1])
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for i in range(count):
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print make_id()
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