dh_usrlocal - migrate usr/local directories to maintainer scripts
dh_usrlocal [debhelper options] [-n]
dh_usrlocal is a debhelper program that can be used for building packages that will provide a subdirectory in /usr/local when installed.
It finds subdirectories of usr/local in the package build directory, and removes them, replacing them with maintainer script snippets (unless -n is used) to create the directories at install time, and remove them when the package is removed, in a manner compliant with Debian policy. These snippets are inserted into the maintainer scripts by dh_installdeb. See dh_installdeb(1) for an explanation of debhelper maintainer script snippets.
When the DEB_RULES_REQUIRES_ROOT environment variable is not (effectively) binary-targets, the directories in /usr/local will be handled as if they were owned by root:root (see below).
When the DEB_RULES_REQUIRES_ROOT environment variable has an effective value of binary-targets, the owners, groups and permissions will be preserved with the sole exception where the directory is owned by root:root.
If a directory is owned by root:root, then ownership will be determined at install time. The ownership and permission bits will either be root:root mode 0755 or root:staff mode 02775. The actual choice depends on whether the system has /etc/staff-group-for-usr-local (as documented in the Debian Policy Manual §9.1.2 since version 4.1.4)
Do not modify postinst/prerm scripts.
Note that this command is not idempotent. dh_prep(1) should be called between invocations of this command. Otherwise, it may cause multiple instances of the same text to be added to maintainer scripts.
Debian policy, version 2.2
This program is a part of debhelper.
Andrew Stribblehill <ads [AT] debian.org>