perennial-regex
All branches matching this regular expression are considered perennial branches.
config file
In the config file the perennial regex exists inside
the [branches] section:
[branches]
perennial-regex = "^release-.*"
Git metadata
You can configure the perennial branches manually by running:
git config [--global] git-town.perennial-regex 'release-.*'
The optional --global flag applies this setting to all Git repositories on
your machine.
Without it, the setting applies only to the current repository.
environment variable
You can configure the perennial regex by setting the GIT_TOWN_PERENNIAL_REGEX
environment variable.