Fix hg push and hg push -r sometimes creating new heads without --force. Fixing issue179. The algorithm checks if there not more new heads on the remote side than heads which become non-heads due to getting children. Pushing this repo: m /\ 3 3a| |/ / 2 2a |/ 1 to a repo only having 1, 2 and 3 didn't abort requiring --force before. Added test cases for this and some doc strings for used methods.

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#!/usr/bin/env python

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#

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# An example CGI script to use hgweb, edit as necessary

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import cgitb, os, sys

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cgitb.enable()

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# sys.path.insert(0, "/path/to/python/lib") # if not a system-wide install

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from mercurial import hgweb

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h = hgweb.hgweb("/path/to/repo", "repository name")

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h.run()