mirror of
https://github.com/tofuutils/pre-commit-opentofu.git
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115 lines
3.8 KiB
Bash
Executable file
115 lines
3.8 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_fmt'
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# shellcheck disable=SC2155 # No way to assign to readonly variable in separate lines
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readonly SCRIPT_DIR="$(dirname "$(realpath "${BASH_SOURCE[0]}")")"
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# shellcheck source=_common.sh
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. "$SCRIPT_DIR/_common.sh"
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function main {
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common::initialize "$SCRIPT_DIR"
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common::parse_cmdline "$@"
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# shellcheck disable=SC2153 # False positive
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terraform_fmt_ "${ARGS[*]}" "${FILES[@]}"
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}
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#######################################################################
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# Hook execution boilerplate logic which is common to hooks, that run
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# on per dir basis. Little bit extended than `common::per_dir_hook`
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# 1. Because hook runs on whole dir, reduce file paths to uniq dir paths
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# (unique) 1.1. Collect paths to *.tfvars files in a separate variable
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# 2. Run for each dir `per_dir_hook_unique_part`, on all paths
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# (unique) 2.1. Run `terraform fmt` on each *.tfvars file
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# 2.2. If at least 1 check failed - change exit code to non-zero
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# 3. Complete hook execution and return exit code
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# Arguments:
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# args (string with array) arguments that configure wrapped tool behavior
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# files (array) filenames to check
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#######################################################################
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function terraform_fmt_ {
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local -r args="$1"
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shift 1
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local -a -r files=("$@")
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# consume modified files passed from pre-commit so that
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# hook runs against only those relevant directories
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local index=0
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for file_with_path in "${files[@]}"; do
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file_with_path="${file_with_path// /__REPLACED__SPACE__}"
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dir_paths[index]=$(dirname "$file_with_path")
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# TODO Unique part
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if [[ "$file_with_path" == *".tfvars" ]]; then
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tfvars_files+=("$file_with_path")
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fi
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#? End for unique part
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((index += 1))
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done
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# preserve errexit status
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shopt -qo errexit && ERREXIT_IS_SET=true
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# allow hook to continue if exit_code is greater than 0
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set +e
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local final_exit_code=0
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# run hook for each path
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for dir_path in $(echo "${dir_paths[*]}" | tr ' ' '\n' | sort -u); do
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dir_path="${dir_path//__REPLACED__SPACE__/ }"
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pushd "$dir_path" > /dev/null || continue
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per_dir_hook_unique_part "$args" "$dir_path"
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local exit_code=$?
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if [ $exit_code -ne 0 ]; then
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final_exit_code=$exit_code
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fi
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popd > /dev/null
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done
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# TODO: Unique part
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# terraform.tfvars are excluded by `terraform fmt`
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for tfvars_file in "${tfvars_files[@]}"; do
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tfvars_file="${tfvars_file//__REPLACED__SPACE__/ }"
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terraform fmt "${ARGS[@]}" "$tfvars_file"
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local exit_code=$?
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if [ $exit_code -ne 0 ]; then
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final_exit_code=$exit_code
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fi
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done
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#? End for unique part
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# restore errexit if it was set before the "for" loop
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[[ $ERREXIT_IS_SET ]] && set -e
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# return the hook final exit_code
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exit $final_exit_code
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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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# 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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# 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="$2"
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# pass the arguments to hook
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# shellcheck disable=SC2068 # hook fails when quoting is used ("$arg[@]")
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terraform fmt ${args[@]}
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# return exit code to common::per_dir_hook
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local exit_code=$?
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return $exit_code
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}
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[ "${BASH_SOURCE[0]}" != "$0" ] || main "$@"
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