#!/usr/bin/env bash

sed_replace='/import (/ {
  :1
  $!N
  s/\n\n/\'$'\n''/
  /)/!b1
}'

go_files() {
    find . -type f -name \*.go -not -name \*_cbor_gen.go | grep -v './extern/filecoin-ffi' | grep -v './extern/test-vectors'
}

# Because -i works differently on macOS, we need to use a different sed command
if [[ "$OSTYPE" == "darwin"* ]]; then
    go_files | xargs -I '{}' sed -i '' -e "$sed_replace" '{}'
else
    go_files | xargs -I '{}' sed -i -e "$sed_replace" '{}'
fi

go_files | xargs -I '{}' goimports -w -local "github.com/filecoin-project" '{}'
go_files | xargs -I '{}' goimports -w -local "github.com/filecoin-project/lotus" '{}'