branchcache: add a "pure topological head" fast path In a narrow but actually quick common case, all topological heads are all on the same branch and all open. In this case, computing the branch map is very simple. We can quickly detect situation where this situation will not change. So we update the V3 format to be able to express this situation and upgrade the update code to detect we remains in that mode. The branch cache is populated with the actual value when the branch map is accessed, but the update_disk method can do the update without needing to populate it.

     1

#!/usr/bin/env python3

     2

#

     3

# An example hgweb CGI script, edit as necessary

     4

# See also https://mercurial-scm.org/wiki/PublishingRepositories

     5

     6

# Path to repo or hgweb config to serve (see 'hg help hgweb')

     7

config = b"/path/to/repo/or/config"

     8

     9

# Uncomment and adjust if Mercurial is not installed system-wide

    10

# (consult "installed modules" path from 'hg debuginstall'):

    11

# import sys; sys.path.insert(0, "/path/to/python/lib")

    12

    13

from mercurial import demandimport

    14

    15

demandimport.enable()

    16

from mercurial.hgweb import hgweb, wsgicgi

    17

    18

application = hgweb(config)

    19

wsgicgi.launch(application)