updpkg() (
  set -e

  [ "$#" -eq 1 ]

  sed -i "s/^pkgver=.*/pkgver=$1/" PKGBUILD

  updpkgsums
  makepkg --printsrcinfo > .SRCINFO
  makepkg -si
  git add PKGBUILD .SRCINFO
  git commit -m "update to $1"

  git show
)