mirror of
https://github.com/tofuutils/pre-commit-opentofu.git
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2623b7b8be
* Refactor: Rewrite `terraform_validate` to `common::per_dir_hook` * Add ability to specify `--hook-config` in future
138 lines
4 KiB
Bash
Executable file
138 lines
4 KiB
Bash
Executable file
#!/usr/bin/env bash
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set -eo pipefail
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# globals variables
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# hook ID, see `- id` for details in .pre-commit-hooks.yaml file
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# shellcheck disable=SC2034 # Unused var.
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readonly HOOK_ID='terraform_validate'
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# shellcheck disable=SC2155 # No way to assign to readonly variable in separate lines
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readonly SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd -P)"
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# shellcheck source=_common.sh
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. "$SCRIPT_DIR/_common.sh"
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# `terraform validate` requires this env variable to be set
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export AWS_DEFAULT_REGION=${AWS_DEFAULT_REGION:-us-east-1}
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function main {
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common::initialize "$SCRIPT_DIR"
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parse_cmdline_ "$@"
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common::parse_and_export_env_vars
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# Export provided env var K/V pairs to environment
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local var var_name var_value
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for var in "${ENVS[@]}"; do
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var_name="${var%%=*}"
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var_value="${var#*=}"
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# shellcheck disable=SC2086
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export $var_name="$var_value"
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done
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# shellcheck disable=SC2153 # False positive
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common::per_dir_hook "${ARGS[*]}" "$HOOK_ID" "${FILES[@]}"
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}
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#######################################################################
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# Parse args and filenames passed to script and populate respective
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# global variables with appropriate values
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# Globals (init and populate):
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# ARGS (array) arguments that configure wrapped tool behavior
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# HOOK_CONFIG (array) arguments that configure hook behavior
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# INIT_ARGS (array) arguments to `terraform init` command
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# ENVS (array) environment variables that will be used with
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# `terraform` commands
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# FILES (array) filenames to check
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# Arguments:
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# $@ (array) all specified in `hooks.[].args` in
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# `.pre-commit-config.yaml` and filenames.
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#######################################################################
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function parse_cmdline_ {
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declare argv
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argv=$(getopt -o e:i:a: --long envs:,init-args:,args: -- "$@") || return
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eval "set -- $argv"
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for argv; do
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case $argv in
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-a | --args)
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shift
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ARGS+=("$1")
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shift
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;;
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-h | --hook-config)
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shift
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HOOK_CONFIG+=("$1;")
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shift
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;;
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-i | --init-args)
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shift
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INIT_ARGS+=("$1")
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shift
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;;
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-e | --envs)
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shift
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ENVS+=("$1")
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shift
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;;
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--)
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shift
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FILES=("$@")
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break
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;;
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esac
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done
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}
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#######################################################################
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# Unique part of `common::per_dir_hook`. The function is executed in loop
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# on each provided dir path. Run wrapped tool with specified arguments
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# 1. Check if `.terraform` dir exists and if not - run `terraform init`
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# 2. Run `terraform validate`
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# 3. If at least 1 check failed - change the exit code to non-zero
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# Arguments:
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# args (string with array) arguments that configure wrapped tool behavior
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# dir_path (string) PATH to dir relative to git repo root.
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# Can be used in error logging
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# Globals:
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# INIT_ARGS (array) arguments for `terraform init` command`
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# ENVS (array) environment variables that will be used with
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# `terraform` commands
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# Outputs:
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# If failed - print out hook checks status
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#######################################################################
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function per_dir_hook_unique_part {
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local -r args="$1"
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local -r dir_path="$2"
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local exit_code
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local init_output
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local validate_output
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if [ ! -d .terraform ]; then
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init_output=$(terraform init -backend=false "${INIT_ARGS[@]}" 2>&1)
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exit_code=$?
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if [ $exit_code -ne 0 ]; then
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common::colorify "yellow" "'terraform init' failed, 'terraform validate' skipped: $dir_path"
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echo "$init_output"
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return $exit_code
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fi
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fi
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# pass the arguments to hook
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# shellcheck disable=SC2068 # hook fails when quoting is used ("$arg[@]")
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validate_output=$(terraform validate ${args[@]} 2>&1)
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exit_code=$?
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if [ $exit_code -ne 0 ]; then
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common::colorify "red" "Validation failed: $dir_path"
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echo -e "$validate_output\n\n"
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fi
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# return exit code to common::per_dir_hook
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return $exit_code
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}
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# global arrays
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declare -a INIT_ARGS
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declare -a ENVS
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[ "${BASH_SOURCE[0]}" != "$0" ] || main "$@"
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