#!/usr/bin/env bash
#  vim:ts=4:sts=4:sw=4:et
#
#  Author: Hari Sekhon
#  Date: 2022-02-25 18:14:24 +0000 (Fri, 25 Feb 2022)
#
#  https://github.com/HariSekhon/bash-tools
#
#  License: see accompanying Hari Sekhon LICENSE file
#
#  If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
#
#  https://www.linkedin.com/in/HariSekhon
#

set -euo pipefail
[ -n "${DEBUG:-}" ] && set -x
srcdir="$(dirname "${BASH_SOURCE[0]}")"

# shellcheck disable=SC1090
. "$srcdir/lib/utils.sh"

# shellcheck disable=SC2034,SC2154
usage_description="
Finds all github_repository references in ./*.tf code not in Terraform state and imports them

Requires the github_repository identifiers in *.tf code to match the GitHub repo name, which does not work with repos which have dots in them eg. '.github'. Those rare exceptions must be imported manually.


Requires Terraform to be installed and configured


See Also:

    github_repos_not_in_terraform.sh
"

# used by usage() in lib/utils.sh
# shellcheck disable=SC2034
usage_args="[<dir>]"

help_usage "$@"

dir="${1:-.}"

cd "$dir"

timestamp "getting terraform state"
terraform_state_list="$(terraform state list)"
echo >&2

timestamp "getting github repos from $PWD/*.tf code"
grep -E '^[[:space:]]*resource[[:space:]]+"github_repository"' ./*.tf |
awk '{gsub("\"", "", $3); print $3}' |
while read -r repo; do
    echo >&2
    if grep -q "github_repository.$repo$" <<< "$terraform_state_list"; then
        echo "repository '$repo' already in terraform state, skipping..." >&2
        continue
    fi
    cmd="terraform import github_repository.$repo $repo"
    timestamp "$cmd"
    $cmd
done