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ci: add shellcheck gh action; fix fatal shellcheck errors
This commit made with the assistance of github copilot Signed-off-by: Morgan Rockett <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,198 @@ | ||
| #!/usr/bin/env bash | ||
|
|
||
| RED="\e[31m" | ||
| GREEN="\e[32m" | ||
| RST_COLOR="\e[0m" | ||
|
|
||
| if ! command -v shellcheck &>/dev/null; then | ||
| echo -e "${RED}[ERROR]${RST_COLOR} shellcheck is not installed." | ||
| echo "Run 'sudo ./scripts/install-build-tools.sh' to install shellcheck." | ||
| exit 1 | ||
| fi | ||
|
|
||
| # Usage: ./scripts/shellcheck.sh [-e|--exclude-code=CODE] [-S|--severity=LEVEL] [-v|--view] | ||
| IFS='' read -rd '' usage <<'EOF' | ||
| Usage: %s [options] | ||
| Options: | ||
| -h, --help print this help and exit | ||
| -e, --exclude-code exclude specific error code, can be repeated | ||
| -S, --severity=LEVEL set severity level (info, warning, error) | ||
| -v, --view view shellcheck report | ||
| example: ./scripts/shellcheck.sh -e SC1091 -e SC1090 -S warning -v | ||
| EOF | ||
|
|
||
| echo; echo "Command line arguments: $0 $*"; echo | ||
|
|
||
| SEVERITY= | ||
| EXCLUDE_CODES= | ||
| VIEW="False" | ||
|
|
||
| _help= | ||
| _err=0 | ||
| while [[ $# -gt 0 ]]; do | ||
| optarg= | ||
| shft_cnt=1 | ||
| if [[ "$1" = '--' ]]; then | ||
| shift 1 | ||
| break | ||
| elif [[ "$1" =~ [=] ]]; then | ||
| optarg="${1#*=}" | ||
| elif [[ "$1" =~ ^-- && $# -gt 1 && ! "$2" =~ ^- ]]; then | ||
| optarg="$2" | ||
| shft_cnt=2 | ||
| elif [[ "$1" =~ ^-[^-] && $# -gt 1 && ! "$2" =~ ^- ]]; then | ||
| optarg="$2" | ||
| shft_cnt=2 | ||
| elif [[ "$1" =~ ^-[^-] ]]; then | ||
| optarg="${1/??/}" | ||
| fi | ||
|
|
||
| case "$1" in | ||
| -S*|--severity*) | ||
| # don't let the user enter -S LEVEL more than once | ||
| # SEV=$(echo "${optarg}" | tr -d '[:space:]') | ||
| if [[ -n "$SEVERITY" ]]; then | ||
| printf "${RED}[Error]${RST_COLOR} Severity level already set to: %s\n" "${SEVERITY}" | ||
| _help=1; _err=1 | ||
| # valid if -S has any of 'info', 'warning', 'error' | ||
| elif [[ "${optarg}" == "info" || "${optarg}" == "warning" || "${optarg}" == "error" ]]; then | ||
| SEVERITY="${optarg}" | ||
| else | ||
| # continue and disregard invalid severity level | ||
| printf "${RED}[Error]${RST_COLOR} severity level: %s\n" "${optarg}" | ||
| _err=1 | ||
| fi | ||
| shift "$shft_cnt" | ||
| ;; | ||
| -e*|--exclude-code*) | ||
| # strip whitespace from optarg | ||
| CODE=$(echo "${optarg}" | tr -d '[:space:]') | ||
| # valid if matching format SC1000-SC9999 | ||
| if [[ "${optarg}" =~ ^SC[0-9]{4}$ ]]; then | ||
| # if empty then populate with just error code, otherwise add pipe before new code for grep later | ||
| if [[ -z "${EXCLUDE_CODES}" ]]; then | ||
| EXCLUDE_CODES+="${CODE}" | ||
| else | ||
| EXCLUDE_CODES+="|${CODE}" | ||
| fi | ||
| else | ||
| # continue just don't save invalid error code | ||
| printf "${RED}[Error]${RST_COLOR} Invalid error code entered: %s\n" "${optarg}" | ||
| _err=1 | ||
| fi | ||
| shift "$shft_cnt" | ||
| ;; | ||
| -v|--view) | ||
| VIEW="True" | ||
| shift "$shft_cnt" | ||
| ;; | ||
| -h|--help) | ||
| _help=1 | ||
| ;; | ||
| *) | ||
| printf "${RED}[Error]${RST_COLOR} Unrecognized option: %s\n" "$1" | ||
| _err=1 | ||
| shift "$shft_cnt" | ||
| ;; | ||
| esac | ||
|
|
||
| # exit on help message | ||
| if [[ $_help -eq 1 ]]; then | ||
| printf "%s\n" "$usage" | ||
| exit 0 | ||
| fi | ||
| # continue on invalid arg, let user know but don't exit | ||
| if [[ "$_err" -eq 1 ]]; then | ||
| printf "${RED}[Error]${RST_COLOR} Invalid argument: %s\n" "${optarg}" | ||
| printf "%s\n" "$usage" | ||
| fi | ||
| done | ||
|
|
||
| # if severity not set, set it to error as default | ||
| if [[ -z "$SEVERITY" ]]; then | ||
| SEVERITY="error" | ||
| fi | ||
|
|
||
| ROOT="$(cd "$(dirname "$0")"/.. && pwd)" | ||
| SHELLCHECK_REPORT="${ROOT}/shellcheck-report.txt" | ||
|
|
||
| NUM_CORES=1 | ||
| if [[ "$OSTYPE" == "linux-gnu"* ]]; then | ||
| NUM_CORES=$(grep -c ^processor /proc/cpuinfo) | ||
| elif [[ "$OSTYPE" == "darwin"* ]]; then | ||
| NUM_CORES=$(sysctl -n hw.ncpu) | ||
| fi | ||
|
|
||
| # run shellcheck in parallel on all tracked shell scripts | ||
| # | ||
| # checking status of this run will give failure if info/warning/error is found by default | ||
| # | ||
| # determine status by parsing shellcheck report to see if any messages | ||
| # of the severity level or more strict are present to determine failure (true errors) | ||
|
|
||
| # check if git is installed | ||
| if command -v git &>/dev/null; then | ||
| echo "Using git ls-files to find shell scripts..."; echo | ||
| git ls-files '*.sh' | xargs -n 1 -P "$NUM_CORES" shellcheck > "$SHELLCHECK_REPORT" | ||
| else | ||
| echo "git is not installed. Using find to compile list of shell scripts..."; echo | ||
| if [[ -z "$EXCLUDE_CODES" ]]; then | ||
| find "$ROOT" -name '*.sh' -print0 | xargs -0 -n 1 -P "$NUM_CORES" shellcheck > "$SHELLCHECK_REPORT" | ||
| fi | ||
| fi | ||
|
|
||
| # if shell check report exists to determine if shellcheck run was successful | ||
| if [[ -z "$SHELLCHECK_REPORT" ]]; then | ||
| echo "${RED}[FAIL]${RST_COLOR}Shellcheck report ${SHELLCHECK_REPORT} not found. Exiting..." | ||
| exit 1 | ||
| else | ||
| if [[ ! -s "$SHELLCHECK_REPORT" ]]; then | ||
| echo "Shellcheck report is empty: ${SHELLCHECK_REPORT}" | ||
| echo "Either there are no info/warning/error messages for all shell scripts" | ||
| echo "in the codebase or shellcheck failed to run successfully. Exiting..." | ||
| exit 0 | ||
| fi | ||
| fi | ||
|
|
||
| # view non-empty shellcheck report, includes info, warnings, errors | ||
| if [[ "$VIEW" == "True" ]]; then | ||
| echo "Shellcheck report: ${SHELLCHECK_REPORT}" | ||
| cat "$SHELLCHECK_REPORT" | ||
| fi | ||
|
|
||
| # detect if fatal errors are in shellcheck report | ||
| echo "Checking for errors in shellcheck report with severity level ${SEVERITY}" | ||
| READABLE_EXCLUDE_CODES=("${EXCLUDE_CODES//|/, }") | ||
| echo "Excluding error codes: ${READABLE_EXCLUDE_CODES[*]}"; echo | ||
|
|
||
| # if any messages of severity level or more strict are present, use for grepping report | ||
| case "$SEVERITY" in | ||
| "info") REGEX_SEVERITY="info|warning|error" ;; | ||
| "warning") REGEX_SEVERITY="warning|error" ;; | ||
| *) REGEX_SEVERITY="error" ;; | ||
| esac | ||
|
|
||
| # just grep report for severity level if no exclude codes, otherwise pipe and exclude codes from matches | ||
| SEARCH_CMD() { | ||
| if [[ "${#EXCLUDE_CODES[@]}" -eq 0 ]]; then | ||
| grep -E "\(${REGEX_SEVERITY}\):" "$SHELLCHECK_REPORT" | ||
| else | ||
| grep -E "\(${REGEX_SEVERITY}\):" "$SHELLCHECK_REPORT" | grep -v -E "\"${EXCLUDE_CODES}"\" | ||
| fi | ||
| } | ||
|
|
||
| # if grep yielded no output then no violations of severity level or higher found (success) | ||
| SEARCH_RESULTS="$(SEARCH_CMD)" | ||
| if [[ -z "$SEARCH_RESULTS" ]]; then | ||
| echo -e "${GREEN}[PASS]${RST_COLOR} Shellcheck did not detect violations scanning with severity level '${SEVERITY}'" | ||
| echo; echo -e "${GREEN}Shellcheck passed.${RST_COLOR} See report: ${SHELLCHECK_REPORT}"; echo | ||
| exit 0 | ||
| else | ||
| COUNT=$(echo "$SEARCH_RESULTS" | wc -l | tr -d '[:space:]') | ||
| echo -e "${RED}[FAIL]${RST_COLOR} Shellcheck found ${RED}${COUNT}${RST_COLOR}"\ | ||
| "unexcused violations scanning with severity level '${SEVERITY}'"; echo | ||
| echo -e "${RED}Shellcheck failed.${RST_COLOR} See report: ${SHELLCHECK_REPORT}"; echo | ||
| exit 1 | ||
| fi |
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