https://bbs.archlinux.org/viewtopic.php?pid=1761231#p1761231

Avoid conflicts when a configuration file is used.

Specifying a relative directory will trigger a regression under some
circumstances.

  $ GIT_DIR=spotify/.git GIT_WORK_TREE=spotify git reset HEAD
  fatal: couldn't read spotify/.git/packed-refs: Not a directory

  $ GIT_DIR=$PWD/spotify/.git GIT_WORK_TREE=$PWD/spotify git reset HEAD

workaround for AladW/aurutils#332

Avoid "Stopping at filesystem boundary" issues with different file
systems.

Remove gpg --verbose, makepkg -L

For compability with repose

This commit only works with repo-add

Fixes #219

Signed-off-by: Morten Linderud <morten@linderud.pw>

Avoid duplicate CacheDir entries in the chroot's pacman.conf

Use own implementation with mktemp/mv -b

repo-add rotates the db to a temporary directory before signing it,
avoiding "file exists" prompts from gpg (this could be avoided with
--yes, but this may have other implications)

Requires use of global variable for now

Avoid issues from host IgnorePkg

We already know which packages to add, and if a package is rebuilt
with same pkgver then a new entry must be added

The regex would break if pkgver contains special characters.