#! /bin/bash

if [ ! -f terragrunt.hcl ]; then
  echo "ERROR: No terragrunt.hcl in this directory. Aborting."
  exit 1
fi

GITSOURCE=$( cat terragrunt.hcl | egrep -v '^ *#' | egrep 'source *= *.git@github\.mdr' )

if [ "$GITSOURCE" == "" ]; then
  echo "ERROR: No source from MDR Git detected. Aborting."
  exit 2
fi

# Remove the git URL and the reference
if [[ $(pwd) =~ regional ]]; then
  # Regional directories need an extra layer
  echo "Regional module detected."
  NEWPATH=$( echo $GITSOURCE | sed 's#^.*//#../../../../../../xdr-terraform-modules//#' | sed 's/\?.*$//' )
else
  NEWPATH=$( echo $GITSOURCE | sed 's#^.*//#../../../../../xdr-terraform-modules//#' | sed 's/\?.*$//' )
fi

echo Substituting \'$GITSOURCE\' with \'$NEWPATH\'

# Test locally
# the double // is intentional! Terragrunt uses this to determine the root of the modules repository.
terragrunt $* --terragrunt-source $NEWPATH