pre-commit-opentofu/terraform_validate.sh

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#!/usr/bin/env bash
set -eo pipefail
main() {
initialize_
parse_cmdline_ "$@"
terraform_validate_
}
initialize_() {
# get directory containing this script
local dir
local source
source="${BASH_SOURCE[0]}"
while [[ -L $source ]]; do # resolve $source until the file is no longer a symlink
dir="$(cd -P "$(dirname "$source")" > /dev/null && pwd)"
source="$(readlink "$source")"
# if $source was a relative symlink, we need to resolve it relative to the path where the symlink file was located
[[ $source != /* ]] && source="$dir/$source"
done
_SCRIPT_DIR="$(dirname "$source")"
# source getopt function
# shellcheck source=lib_getopt
. "$_SCRIPT_DIR/lib_getopt"
}
parse_cmdline_() {
declare argv
argv=$(getopt -o e:a: --long envs:,args: -- "$@") || return
eval "set -- $argv"
for argv; do
case $argv in
-a | --args)
shift
ARGS+=("$1")
shift
;;
-e | --envs)
shift
ENVS+=("$1")
shift
;;
--)
shift
FILES=("$@")
break
;;
esac
done
}
terraform_validate_() {
# Setup environment variables
local var var_name var_value
for var in "${ENVS[@]}"; do
var_name="${var%%=*}"
var_value="${var#*=}"
# shellcheck disable=SC2086
export $var_name="$var_value"
done
declare -a paths
local index=0
local error=0
local file_with_path
for file_with_path in "${FILES[@]}"; do
file_with_path="${file_with_path// /__REPLACED__SPACE__}"
paths[index]=$(dirname "$file_with_path")
((index += 1))
done
local path_uniq
for path_uniq in $(echo "${paths[*]}" | tr ' ' '\n' | sort -u); do
path_uniq="${path_uniq//__REPLACED__SPACE__/ }"
if [[ -n "$(find "$path_uniq" -maxdepth 1 -name '*.tf' -print -quit)" ]]; then
local starting_path
starting_path=$(realpath "$path_uniq")
local terraform_path
terraform_path="$path_uniq"
# Find the relevant .terraform directory (indicating a 'terraform init'),
# but fall through to the current directory.
while [[ $terraform_path != "." ]]; do
if [[ -d $terraform_path/.terraform ]]; then
break
else
terraform_path=$(dirname "$terraform_path")
fi
done
local validate_path
validate_path="${path_uniq#"$terraform_path"}"
# Change to the directory that has been initialized, run validation, then
# change back to the starting directory.
cd "$(realpath "$terraform_path")"
if ! terraform validate "${ARGS[@]}" "$validate_path"; then
error=1
echo
echo "Failed path: $path_uniq"
echo "================================"
fi
cd "$starting_path"
fi
done
if [[ $error -ne 0 ]]; then
exit 1
fi
}
# global arrays
declare -a ARGS
declare -a ENVS
declare -a FILES
[[ ${BASH_SOURCE[0]} != "$0" ]] || main "$@"