superlint/lib/functions/detectFiles.sh
Marco Ferrari 0967cd29d0
feat: enable shell error checks (#5126)
Enable error checks to:

- Exit on errors
- Disallow empty variables
- Fail when a piped command errors
2024-02-20 19:05:39 +00:00

406 lines
14 KiB
Bash
Executable file

#!/usr/bin/env bash
DetectActions() {
FILE="${1}"
if [ "${VALIDATE_GITHUB_ACTIONS}" == "false" ]; then
debug "Don't check if ${FILE} is a GitHub Actions file because VALIDATE_GITHUB_ACTIONS is: ${VALIDATE_GITHUB_ACTIONS}"
return 1
fi
debug "Checking if ${FILE} is a GitHub Actions file..."
# Check if in the users .github, or the super linter test suite
if [[ "$(dirname "${FILE}")" == *".github/workflows"* ]] || [[ "$(dirname "${FILE}")" == *"${TEST_CASE_FOLDER}/github_actions"* ]]; then
debug "${FILE} is GitHub Actions file."
return 0
else
debug "${FILE} is NOT GitHub Actions file."
return 1
fi
}
DetectOpenAPIFile() {
FILE="${1}"
if [ "${VALIDATE_OPENAPI}" == "false" ]; then
debug "Don't check if ${FILE} is an OpenAPI file because VALIDATE_OPENAPI is: ${VALIDATE_OPENAPI}"
return 1
fi
debug "Checking if ${FILE} is an OpenAPI file..."
if grep -E '"openapi":|"swagger":|^openapi:|^swagger:' "${FILE}" >/dev/null; then
debug "${FILE} is an OpenAPI descriptor"
return 0
else
debug "${FILE} is NOT an OpenAPI descriptor"
return 1
fi
}
DetectTektonFile() {
FILE="${1}"
if [ "${VALIDATE_TEKTON}" == "false" ]; then
debug "Don't check if ${FILE} is a Tekton file because VALIDATE_TEKTON is: ${VALIDATE_TEKTON}"
return 1
fi
debug "Checking if ${FILE} is a Tekton file..."
if grep -q -E 'apiVersion: tekton' "${FILE}" >/dev/null; then
return 0
else
return 1
fi
}
DetectARMFile() {
FILE="${1}"
if [ "${VALIDATE_ARM}" == "false" ]; then
debug "Don't check if ${FILE} is an ARM file because VALIDATE_ARM is: ${VALIDATE_ARM}"
return 1
fi
debug "Checking if ${FILE} is an ARM file..."
if grep -E 'schema.management.azure.com' "${FILE}" >/dev/null; then
return 0
else
return 1
fi
}
DetectCloudFormationFile() {
FILE="${1}"
if [ "${VALIDATE_CLOUDFORMATION}" == "false" ]; then
debug "Don't check if ${FILE} is a CloudFormation file because VALIDATE_CLOUDFORMATION is: ${VALIDATE_CLOUDFORMATION}"
return 1
fi
debug "Checking if ${FILE} is a Cloud Formation file..."
# https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/template-formats.html
# AWSTemplateFormatVersion is optional
# Check if file has AWS Template info
if grep -q 'AWSTemplateFormatVersion' "${FILE}" >/dev/null; then
return 0
fi
# See if it contains AWS References
if grep -q -E '(AWS|Alexa|Custom)::' "${FILE}" >/dev/null; then
return 0
fi
return 1
}
DetectKubernetesFile() {
FILE="${1}"
if [ "${VALIDATE_KUBERNETES_KUBECONFORM}" == "false" ]; then
debug "Don't check if ${FILE} is a Kubernetes file because VALIDATE_KUBERNETES_KUBECONFORM is: ${VALIDATE_KUBERNETES_KUBECONFORM}"
return 1
fi
debug "Checking if ${FILE} is a Kubernetes descriptor..."
if grep -q -v 'kustomize.config.k8s.io' "${FILE}" &&
grep -q -v "tekton" "${FILE}" &&
grep -q -E '(^apiVersion):' "${FILE}" &&
grep -q -E '(^kind):' "${FILE}"; then
debug "${FILE} is a Kubernetes descriptor"
return 0
fi
debug "${FILE} is NOT a Kubernetes descriptor"
return 1
}
DetectAWSStatesFIle() {
FILE="${1}"
if [ "${VALIDATE_STATES}" == "false" ]; then
debug "Don't check if ${FILE} is an AWS states file because VALIDATE_STATES is: ${VALIDATE_STATES}"
return 1
fi
debug "Checking if ${FILE} is a AWS states descriptor..."
# https://states-language.net/spec.html#example
if grep -q '"Resource": *"arn' "${FILE}" &&
grep -q '"States"' "${FILE}"; then
return 0
fi
return 1
}
function GetFileType() {
# Need to run the file through the 'file' exec to help determine
# The type of file being parsed
FILE="$1"
GET_FILE_TYPE_CMD=$(file "${FILE}" 2>&1)
echo "${GET_FILE_TYPE_CMD}"
}
function CheckFileType() {
# Need to run the file through the 'file' exec to help determine
# The type of file being parsed
local FILE
FILE="$1"
local GET_FILE_TYPE_CMD
GET_FILE_TYPE_CMD="$(GetFileType "$FILE")"
local FILE_TYPE_MESSAGE
if [[ ${GET_FILE_TYPE_CMD} == *"Ruby script"* ]]; then
FILE_TYPE_MESSAGE="Found Ruby script without extension (${FILE}). Rename the file with proper extension for Ruby files."
echo "${FILE}" >>"${FILE_ARRAYS_DIRECTORY_PATH}/file-array-RUBY"
elif [[ ${GET_FILE_TYPE_CMD} == *"Python script"* ]]; then
FILE_TYPE_MESSAGE="Found Python script without extension (${FILE}). Rename the file with proper extension for Python files."
echo "${FILE}" >>"${FILE_ARRAYS_DIRECTORY_PATH}/file-array-PYTHON"
elif [[ ${GET_FILE_TYPE_CMD} == *"Perl script"* ]]; then
FILE_TYPE_MESSAGE="Found Perl script without extension (${FILE}). Rename the file with proper extension for Perl files."
echo "${FILE}" >>"${FILE_ARRAYS_DIRECTORY_PATH}/file-array-PERL"
else
FILE_TYPE_MESSAGE="Failed to get file type for: ${FILE}"
fi
if [ "${SUPPRESS_FILE_TYPE_WARN}" == "false" ]; then
warn "${FILE_TYPE_MESSAGE}"
else
debug "${FILE_TYPE_MESSAGE}"
fi
}
function GetFileExtension() {
FILE="$1"
# We want a lowercase value
local -l FILE_TYPE
# Extract the file extension
FILE_TYPE=${FILE##*.}
echo "$FILE_TYPE"
}
function IsValidShellScript() {
FILE="$1"
if [ "${VALIDATE_BASH}" == "false" ] && [ "${VALIDATE_BASH_EXEC}" == "false" ] && [ "${VALIDATE_SHELL_SHFMT}" == "false" ]; then
debug "Don't check if ${FILE} is a shell script because VALIDATE_BASH, VALIDATE_BASH_EXEC, and VALIDATE_SHELL_SHFMT are set to: ${VALIDATE_BASH}, ${VALIDATE_BASH_EXEC}, ${VALIDATE_SHELL_SHFMT}"
return 1
fi
FILE_EXTENSION="$(GetFileExtension "$FILE")"
GET_FILE_TYPE_CMD="$(GetFileType "$FILE")"
debug "File:[${FILE}], File extension:[${FILE_EXTENSION}], File type: [${GET_FILE_TYPE_CMD}]"
if [[ "${FILE_EXTENSION}" == "zsh" ]] ||
[[ ${GET_FILE_TYPE_CMD} == *"zsh script"* ]]; then
warn "$FILE is a ZSH script. Skipping..."
return 1
fi
if [ "${FILE_EXTENSION}" == "sh" ] ||
[ "${FILE_EXTENSION}" == "bash" ] ||
[ "${FILE_EXTENSION}" == "bats" ] ||
[ "${FILE_EXTENSION}" == "dash" ] ||
[ "${FILE_EXTENSION}" == "ksh" ]; then
debug "$FILE is a valid shell script (has a valid extension: ${FILE_EXTENSION})"
return 0
fi
if [[ "${GET_FILE_TYPE_CMD}" == *"POSIX shell script"* ]] ||
[[ ${GET_FILE_TYPE_CMD} == *"Bourne-Again shell script"* ]] ||
[[ ${GET_FILE_TYPE_CMD} == *"dash script"* ]] ||
[[ ${GET_FILE_TYPE_CMD} == *"ksh script"* ]] ||
[[ ${GET_FILE_TYPE_CMD} == *"/usr/bin/env sh script"* ]]; then
debug "$FILE is a valid shell script (has a valid file type: ${GET_FILE_TYPE_CMD})"
return 0
fi
debug "$FILE is NOT a supported shell script. Skipping"
return 1
}
function IsGenerated() {
FILE="$1"
if [ "${IGNORE_GENERATED_FILES}" == "false" ]; then
debug "Don't check if ${FILE} is generated because IGNORE_GENERATED_FILES is: ${IGNORE_GENERATED_FILES}"
return 1
fi
if ! grep -q "@generated" "$FILE"; then
debug "File:[${FILE}] is not generated, because it doesn't have @generated marker"
return 1
fi
if grep -q "@not-generated" "$FILE"; then
debug "File:[${FILE}] is not-generated because it has @not-generated marker"
return 1
else
debug "File:[${FILE}] is generated because it has @generated marker"
return 0
fi
}
# We need these functions when building the file list with paralle
export -f CheckFileType
export -f DetectActions
export -f DetectARMFile
export -f DetectAWSStatesFIle
export -f DetectCloudFormationFile
export -f DetectKubernetesFile
export -f DetectOpenAPIFile
export -f DetectTektonFile
export -f GetFileExtension
export -f GetFileType
export -f IsValidShellScript
export -f IsGenerated
function RunAdditionalInstalls() {
if [ -z "${FILE_ARRAYS_DIRECTORY_PATH}" ] || [ ! -d "${FILE_ARRAYS_DIRECTORY_PATH}" ]; then
fatal "FILE_ARRAYS_DIRECTORY_PATH (set to ${FILE_ARRAYS_DIRECTORY_PATH}) is empty or doesn't exist"
fi
##################################
# Run installs for Psalm and PHP #
##################################
if [ "${VALIDATE_PHP_PSALM}" == "true" ] && [ -e "${FILE_ARRAYS_DIRECTORY_PATH}/file-array-PHP_PSALM" ]; then
# found PHP files and were validating it, need to composer install
info "Found PHP files to validate, and VALIDATE_PHP_PSALM is set to ${VALIDATE_PHP_PSALM}. Check if we need to run composer install"
mapfile -t COMPOSER_FILE_ARRAY < <(find "${GITHUB_WORKSPACE}" -name composer.json 2>&1)
debug "COMPOSER_FILE_ARRAY contents: ${COMPOSER_FILE_ARRAY[*]}"
if [ "${#COMPOSER_FILE_ARRAY[@]}" -ne 0 ]; then
for LINE in "${COMPOSER_FILE_ARRAY[@]}"; do
local COMPOSER_PATH
COMPOSER_PATH=$(dirname "${LINE}" 2>&1)
info "Found Composer file: ${LINE}"
local COMPOSER_CMD
if ! COMPOSER_CMD=$(cd "${COMPOSER_PATH}" && composer install --no-progress -q 2>&1); then
fatal "Failed to run composer install for ${COMPOSER_PATH}. Output: ${COMPOSER_CMD}"
else
info "Successfully ran composer install."
fi
debug "Composer install output: ${COMPOSER_CMD}"
done
fi
fi
if [ "${VALIDATE_PYTHON_MYPY}" == "true" ] && [ -e "${FILE_ARRAYS_DIRECTORY_PATH}/file-array-PYTHON_MYPY" ]; then
local MYPY_CACHE_DIRECTORY_PATH
MYPY_CACHE_DIRECTORY_PATH="${GITHUB_WORKSPACE}/.mypy_cache"
debug "Create MyPy cache directory: ${MYPY_CACHE_DIRECTORY_PATH}"
mkdir -p "${MYPY_CACHE_DIRECTORY_PATH}"
fi
###############################
# Run installs for R language #
###############################
if [ "${VALIDATE_R}" == "true" ] && [ -e "${FILE_ARRAYS_DIRECTORY_PATH}/file-array-R" ]; then
info "Detected R Language files to lint."
info "Installing the R package in: ${GITHUB_WORKSPACE}"
local BUILD_CMD
if ! BUILD_CMD=$(R CMD build "${GITHUB_WORKSPACE}" 2>&1); then
warn "Failed to build R package in ${GITHUB_WORKSPACE}. Output: ${BUILD_CMD}"
else
local BUILD_PKG
if ! BUILD_PKG=$(cd "${GITHUB_WORKSPACE}" && echo *.tar.gz 2>&1); then
warn "Failed to echo R archives. Output: ${BUILD_PKG}"
fi
debug "echo R archives output: ${BUILD_PKG}"
local INSTALL_CMD
if ! INSTALL_CMD=$(cd "${GITHUB_WORKSPACE}" && R -e "remotes::install_local('.', dependencies=T)" 2>&1); then
warn "Failed to install the R package. Output: ${BUILD_PKG}]"
fi
debug "R package install output: ${INSTALL_CMD}"
fi
if [ ! -f "${R_RULES_FILE_PATH_IN_ROOT}" ]; then
info "No .lintr configuration file found, using defaults."
cp "$R_LINTER_RULES" "$GITHUB_WORKSPACE"
# shellcheck disable=SC2034
SUPER_LINTER_COPIED_R_LINTER_RULES_FILE="true"
fi
fi
####################################
# Run installs for TFLINT language #
####################################
if [ "${VALIDATE_TERRAFORM_TFLINT}" == "true" ] && [ -e "${FILE_ARRAYS_DIRECTORY_PATH}/file-array-TERRAFORM_TFLINT" ]; then
info "Detected TFLint Language files to lint."
info "Initializing TFLint in ${GITHUB_WORKSPACE}"
local BUILD_CMD
if ! BUILD_CMD=$(cd "${GITHUB_WORKSPACE}" && tflint --init -c "${TERRAFORM_TFLINT_LINTER_RULES}" 2>&1); then
fatal "ERROR! Failed to initialize tflint with the ${TERRAFORM_TFLINT_LINTER_RULES} config file: ${BUILD_CMD}"
else
info "Successfully initialized tflint with the ${TERRAFORM_TFLINT_LINTER_RULES} config file"
debug "Tflint output: ${BUILD_CMD}"
fi
# Array to track directories where tflint was run
local -A TFLINT_SEEN_DIRS
TFLINT_SEEN_DIRS=()
for FILE in "${FILE_ARRAY_TERRAFORM_TFLINT[@]}"; do
local DIR_NAME
DIR_NAME=$(dirname "${FILE}" 2>&1)
debug "DIR_NAME for ${FILE}: ${DIR_NAME}"
# Check the cache to see if we've already prepped this directory for tflint
if [[ ! -v "TFLINT_SEEN_DIRS[${DIR_NAME}]" ]]; then
debug "Configuring Terraform data directory for ${DIR_NAME}"
# Define the path to an empty Terraform data directory
# (def: https://developer.hashicorp.com/terraform/cli/config/environment-variables#tf_data_dir)
# in case the user has a Terraform data directory already, and we don't
# want to modify it.
# TFlint considers this variable as well.
# Ref: https://github.com/terraform-linters/tflint/blob/master/docs/user-guide/compatibility.md#environment-variables
TF_DATA_DIR="/tmp/.terraform-${TERRAFORM_TFLINT}-${DIR_NAME}"
# Fetch Terraform modules
debug "Fetch Terraform modules for ${FILE} in ${DIR_NAME} in ${TF_DATA_DIR}"
local FETCH_TERRAFORM_MODULES_CMD
if ! FETCH_TERRAFORM_MODULES_CMD="$(terraform get)"; then
fatal "Error when fetching Terraform modules while linting ${FILE}. Command output: ${FETCH_TERRAFORM_MODULES_CMD}"
fi
debug "Fetch Terraform modules command for ${FILE} output: ${FETCH_TERRAFORM_MODULES_CMD}"
# Let the cache know we've seen this before
# Set the value to an arbitrary non-empty string.
TFLINT_SEEN_DIRS[${DIR_NAME}]="false"
else
debug "Skip fetching Terraform modules for ${FILE} because we already did that for ${DIR_NAME}"
fi
done
fi
if [ "${VALIDATE_TERRAFORM_TERRASCAN}" == "true" ] && [ -e "${FILE_ARRAYS_DIRECTORY_PATH}/file-array-TERRAFORM_TERRASCAN" ]; then
info "Initializing Terrascan repository"
local -a TERRASCAN_INIT_COMMAND
TERRASCAN_INIT_COMMAND=(terrascan init -c "${TERRAFORM_TERRASCAN_LINTER_RULES}")
if [[ "${LOG_DEBUG}" == "true" ]]; then
TERRASCAN_INIT_COMMAND+=(--log-level "debug")
fi
debug "Terrascan init command: ${TERRASCAN_INIT_COMMAND[*]}"
local TERRASCAN_INIT_COMMAND_OUTPUT
if ! TERRASCAN_INIT_COMMAND_OUTPUT="$("${TERRASCAN_INIT_COMMAND[@]}" 2>&1)"; then
fatal "Error while initializing Terrascan:\n${TERRASCAN_INIT_COMMAND_OUTPUT}"
fi
debug "Terrascan init command output:\n${TERRASCAN_INIT_COMMAND_OUTPUT}"
fi
# Check if there's local configuration for the Raku linter
if [ -e "${GITHUB_WORKSPACE}/META6.json" ]; then
cd "${GITHUB_WORKSPACE}" && zef install --deps-only --/test .
fi
}