go and terraform git pre commit hook

#!/bin/sh

# To use, store as .git/hooks/pre-commit inside your repository and make sure
# it has execute permissions.


gofiles=$(git diff --cached --name-only --diff-filter=ACM | grep '.go$')
if [ ! -z "$gofiles" ]; then

  unformatted=$(goimports -l $gofiles)
  if [ ! -z "$unformatted" ] ; then
    # Some files are not goimports'd. Print message and fail.
    echo >&2 "Go files must be formatted with goimports. Please run:"
    for fn in $unformatted; do
	    echo >&2 "  goimports -w $PWD/$fn"
    done
  fi

fi

tffiles=$(git diff --cached --name-only --diff-filter=ACM | grep '.tf$')
if [ ! -z "$tffiles" ]; then

  unformatted=$(terraform fmt -check $tffiles)
  if [ ! -z "$unformatted" ] ; then
    # Some files are not terraform fmt'd. Print message and fail.
    echo >&2 "Terraform files must be formatted with goimports. Please run:"
    for fn in $unformatted; do
	    echo >&2 "  terraform fmt -write=true $PWD/$fn"
    done
  fi

fi