#!/bin/bash
getdep() {
  local deps="" depends="" makedepends="" ret=0 dep=""
  pre+="--"
  # grep all dependencies from PKGBUILD of given package (dirty as it doesn't handle line breaks in the array)
  eval $(grep depends "$1"/PKGBUILD)
  # create array with only the names of all needed dependencies
  deps=($(echo "${depends[@]} ${makedepends[@]}" | sed 's/[>=<][>=<]*[^ ]*//g'))
  for dep in ${deps[@]}
  do
    echo "${pre}>${dep}" >&2
    # check whether dependency already is in a repository
    if pacman -Si "$dep" >/dev/null 2>&1
    then
      [ $ret -eq 0 ] && ret=2
    # check whether an AUR-package exists
    elif cower -i "$dep" >/dev/null 2>&1 || [ -d "$dep" ]
    then
      # download package if it is not already there
      if ! [ -d "$dep" ]
      then
        cower -d "$dep" >/dev/null 2>&1
      fi
      # remove all unneeded deplendencies as they are already integrated in ruby
      sed -i "s/['\"(]rubygems[)'\"]//g;s/['\"(]ruby-rake[)'\"]//g;s/['\"(]ruby-rdoc[)'\"]//g" "$dep"/PKGBUILD
      # check for dependencies of the dependency
      getdep "$dep"
      ret=$?
      echo "${pre}>$ret" >&2
      if [ $ret -eq 2 ]
      then
        if ! pacman -Si "$dep" >/dev/null 2>&1
        then
          # replace/create md5sum for the package
          grep 'md5sums=()' "$dep"/PKGBUILD >/dev/null 2>&1 && sed -i "s/md5sums=()/$(makepkg -g)/g" "$dep"/PKGBUILD
          grep 'md5sums=' "$dep"/PKGBUILD >/dev/null 2>&1 || { cd "$dep" && makepkg -g >> PKGBUILD; cd .. ; }
          # build and add the package to own repository
          makerepopkg.sh -Bp i686,x86_64 -P "$dep"/PKGBUILD >&2
          if [ $? -eq 0 ]
          then
            # sync modified repository files to repo-server
            echo -e 'y\n' | unison -auto repo >&2
            # update local repository databases
            sudo pacman -Sy >&2
            sudo arch-nspawn /data/repo/x86_64/root pacman -Sy >&2
            sudo linux32 arch-nspawn /data/repo/i686/root pacman -Sy >&2
            ret=3
          else
            ret=1
          fi
        fi
      fi
    else
      echo "$dep" && ret=1
    fi
  done
  unset pre
  return $ret
}
for pkg in *
do
  echo "$pkg";
  getdep "$pkg"
  if [ $? -eq 2 ]
  then
    if ! pacman -Si "$pkg" >/dev/null 2>&1
    then
      # replace/create md5sum for the package
      grep 'md5sums=()' "$pkg"/PKGBUILD >/dev/null 2>&1 && sed -i "s/md5sums=()/$(makepkg -g)/g" "$pkg"/PKGBUILD
      grep 'md5sums=' "$pkg"/PKGBUILD >/dev/null 2>&1 || { cd "$pkg" && makepkg -g >> PKGBUILD; cd .. ; }
      # build and add the package to own repository
      makerepopkg.sh -Bp i686,x86_64 -P "$pkg"/PKGBUILD >&2
      if [ $? -eq 0 ]
      then
        # sync modified repository files to repo-server
        echo -e 'y\n' | unison -auto repo >&2
        # update local repository databases
        sudo pacman -Sy >&2
        sudo arch-nspawn /data/repo/x86_64/root pacman -Sy >&2
        sudo linux32 arch-nspawn /data/repo/i686/root pacman -Sy >&2
      else
        echo "Couldn't build $pkg."
      fi
    fi
  fi
done