Implementation: installfile

• We need to take care of many cases:

  • if file is mutable, rotate out, install new file as immutable, and record operation in WORKDIR/state/changedfiles
  • optionally, install without rotation (overwrite), like in /etc/cron.daily
  • if file is mutable but in changedfiles, it's been user modified, skip
  • if file is immutable, upgrade getupdates maintained file in place
  • or force rotation anyway
  • or install a file in place and leave mutable by specifying the md5sum of the intended target (which leaves it alone if the user modified it)

Notes: