clfilter: handle non contiguous iteration in `revlov.headrevs`
This prepares changelog level filtering. We can't assume that any revision can
be heads because filtered revisions need to be excluded.
New algorithm:
- All revisions now start as "non heads",
- every revision we iterate over is made candidate head,
- parents of iterated revisions are definitely not head.
Filtered revisions are never iterated over and never considered as candidate
head.
### --- User interface
[ui]
### show changed files and be a bit more verbose if True
# verbose = True
### username data to appear in comits
### it usually takes the form: Joe User <joe.user@host.com>
# username = Joe User <j.user@example.com>
### --- Extensions
[extensions]
### each extension has its own 'extension_name=path' line
### the default python library path is used when path is left blank
### the hgext dir is used when 'hgext.extension_name=' is written
### acl - Access control lists
### hg help acl
# hgext.acl =
### bisect - binary search changesets to detect bugs
### hg help bisect
# hgext.hbisect =
### bugzilla - update bugzilla bugs when changesets mention them
### hg help bugzilla
# hgext.bugzilla =
### extdiff - Use external diff application instead of builtin one
# hgext.extdiff =
### gpg - GPG checks and signing
### hg help gpg
# hgext.gpg =
### graphlog - ASCII graph log
### hg help glog
# hgext.graphlog =
### hgk - GUI repository browser
### hg help view
# hgext.hgk =
### mq - Mercurial patch queues
### hg help mq
# hgext.mq =
### notify - Template driven e-mail notifications
### hg help notify
# hgext.notify =
### patchbomb - send changesets as a series of patch emails
### hg help email
# hgext.patchbomb =
### churn - create a graph showing who changed the most lines
### hg help churn
# hgext.churn = /home/user/hg/hg/contrib/churn.py
### eol - automatic management of line endings
# hgext.eol =
### --- hgk additional configuration
[hgk]
### set executable path
# path = /home/user/hg/hg/contrib/hgk
### --- Hook to Mercurial actions - See hgrc man page for avaliable hooks
[hooks]
### Example notify hooks (load hgext.notify extension before use)
# incoming.notify = python:hgext.notify.hook
# changegroup.notify = python:hgext.notify.hook
### Email configuration for the notify and patchbomb extensions
[email]
### Your email address
# from = user@example.com
### Method to send email - smtp or /usr/sbin/sendmail or other program name
# method = smtp
### smtp server to send email to
[smtp]
# host = mail
# port = 25
# tls = false
# username = user
# password = blivet
# local_hostname = myhost
### --- Email notification hook for server
[notify]
### multiple sources can be specified as a whitespace or comma separated list
# sources = serve push pull bundle
### set this to False when you're ready for mail to start sending
# test = True
### path to config file with names of subscribers
# config = /path/to/subscription/file