Lists out the dependencies importing the module you specify all the way up to the project's main module

goexplain.sh

#!/bin/bash

home_module="$(go list -m | head -1)"
cache="$(mktemp)"
gomodule="go@$(go version | cut -d ' ' -f 3 | sed -e 's/^go//' | cut -d '.' -f 1,2)"

function explain() {
  local importers="$(go mod graph | grep " ${1}" | cut -d ' ' -f 1)"
  local importer;
  for importer in $importers; do
    if [[ $importer =~ "$home_module" ]]; then
      continue
    fi
    if [ "$importer" = "$gomodule" ]; then
      continue
    fi
    if grep "$importer" $cache > /dev/null; then
      continue
    fi
    echo "$importer" | tee -a $cache
    explain "$importer"
  done
}

explain "$1"
echo "$home_module"