foreground { echo "Mail from " $1 }
if -x 77 { test $1 = IPv6:::1 }

backtick message_id { mhdr -h Message-Id - }
backtick dir { mktemp -d }

multisubstitute {
  importas -i message_id message_id
  importas -i dir dir
  define origin /home/spectrum/git/spectrum.git
}

foreground {
  if { mkdir ${dir}/git }
  cd ${dir}/git
  export GIT_CONFIG_COUNT 2
  export GIT_CONFIG_KEY_0 am.messageid
  export GIT_CONFIG_VALUE_0 true
  export GIT_CONFIG_KEY_1 b4.midmask
  export GIT_CONFIG_VALUE_1 https://spectrum-os.org/lists/archives/spectrum-test/%s
  export XDG_CACHE_HOME ${dir}/cache
  export XDG_DATA_HOME ${dir}/data
  if { git clone -n --single-branch --reference $origin $origin . }
  if -x 75 { b4 shazam -CH $message_id }
  pipeline {
    git log -z --format=%H:refs/patches/%(trailers:key=Message-Id,valueonly)
      HEAD..FETCH_HEAD
  }
  pipeline { tr -d <> }
  redirfd -w 2 /tmp/err
  xargs -tr0
  git push origin --dry-run
}
importas -iu exit ?
if { rm -rf $dir }
exit $exit