{% if pkg['vcstype'] == 'bzr' %}pkgver() {
  cd "${_pkgname}"
  printf "r%s" "$(bzr revno)"
}{% endif %}{% if pkg['vcstype'] == 'git' %}pkgver() {
  cd "${srcdir}/${_pkgname}"
  # no tags, so number of revisions e.g. r1142.a17a017
  printf "r%s.%s" "$(git rev-list --count HEAD)" "$(git rev-parse --short HEAD)"
  ## most recent annotated tag e.g. 2.0.r6.ga17a017
  #git describe --long | sed 's/\([^-]*-g\)/r\1/;s/-/./g'
  ## most recent un-annotated tag e.g. 0.71.r115.gd95ee07
  #git describe --long --tags | sed 's/\([^-]*-g\)/r\1/;s/-/./g'
  ## or:
  ##git describe --long --tags | sed 's/-/.r/;s/-/./'
  ## project uses tags with prefix. e.g. v...
  #git describe --long | sed 's/^foo-//;s/\([^-]*-g\)/r\1/;s/-/./g'
  ## both with fallback, e.g. 0.9.9.r27.g2b039da with tags, else r1581.2b039da
  #( set -o pipefail
  #  git describe --long 2>/dev/null | sed 's/\([^-]*-g\)/r\1/;s/-/./g' ||
  #  printf "r%s.%s" "$(git rev-list --count HEAD)" "$(git rev-parse --short HEAD)"
  #)
}{% endif %}{% if pkg['vcstype'] == 'hg' %}pkgver() {
  cd "${_pkgname}"
  printf "r%s.%s" "$(hg identify -n)" "$(hg identify -i)"
}{% endif %}{% if pkg['vcstype'] == 'svn' %}pkgver() {
  cd "${_pkgname}"
  local ver="$(svnversion)"
  printf "r%s" "${ver//[[:alpha:]]}"
}{% endif %}