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]>

Author: rockett-m

.github/workflows/ci.yml

@@ -25,7 +25,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           submodules: recursive
-      - name: Setup Build Env
+      - name: Install Build Tools
         run: sudo ./scripts/install-build-tools.sh
       - name: Setup Local Dependencies
         run: ./scripts/setup-dependencies.sh
@@ -38,7 +38,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           submodules: recursive
-      - name: Setup Build Env
+      - name: Install Build Tools
         run: sudo ./scripts/install-build-tools.sh
       - name: Setup Local Dependencies
         run: ./scripts/setup-dependencies.sh
@@ -50,7 +50,7 @@ jobs:
     name: Pylint
     runs-on: ubuntu-22.04
     continue-on-error: true
-    timeout-minutes: 10
+    timeout-minutes: 5
     strategy:
       matrix:
         python-version: ["3.10"]
@@ -62,10 +62,23 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
-      - name: Setup Build Env
+      - name: Install Build Tools
         run: sudo ./scripts/install-build-tools.sh
       - name: Lint with Pylint
         run: ./scripts/pylint.sh
+  shellcheck:
+    name: Shellcheck
+    runs-on: ubuntu-22.04
+    continue-on-error: true
+    timeout-minutes: 5
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+      - name: Install Build Tools
+        run: sudo ./scripts/install-build-tools.sh
+      - name: Lint with Shellcheck
+        run: ./scripts/shellcheck.sh view
   unit-and-integration-test:
     name: Unit and Integration Tests
     runs-on: ubuntu-22.04
@@ -74,7 +87,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           submodules: recursive
-      - name: Setup Build Env
+      - name: Install Build Tools
         run: sudo ./scripts/install-build-tools.sh
       - name: Setup Local Dependencies
         run: ./scripts/setup-dependencies.sh
@@ -84,7 +97,7 @@ jobs:
         run: ./scripts/test.sh
       - name: Shorten SHA
         id: vars
-        run: echo "::set-output name=sha_short::$(git rev-parse --short HEAD)"
+        run: echo "sha_short=$(git rev-parse --short HEAD)" >> $GITHUB_ENV
       - uses: actions/upload-artifact@v4
         if: ${{ !env.ACT }}
         name: Archive Test Results
@@ -114,4 +127,3 @@ jobs:
           name: OpenCBDC Transaction Processor docs for ${{ steps.vars.outputs.sha_short }}
           path: ./doxygen_generated/html/*
           retention-days: 7
-

scripts/create-e2e-report.sh

@@ -11,7 +11,7 @@ function readAndFormatLogs() {
         return
     fi
 
-    for logfile in $(ls $logdir); do
+    for logfile in "$logdir"/*; do
         logfile_path="$logdir/$logfile"
         logfile_content=$(cat $logfile_path)
         message+="\n<details>\n<summary>$logfile</summary>\n\n\`\`\`\n$logfile_content\n\`\`\`\n</details>\n"

scripts/install-build-tools.sh

@@ -17,7 +17,7 @@ fi
 
 # Supporting these versions for buildflow
 PYTHON_VERSIONS=("3.10" "3.11" "3.12")
-echo "Python3 versions supported: ${PYTHON_VERSIONS[@]}"
+echo "Python3 versions supported: ${PYTHON_VERSIONS[*]}"
 
 # check if supported version of python3 is already installed, and save the version
 PY_INSTALLED=''

scripts/lint.sh

@@ -27,7 +27,7 @@ fi
 
 check_format_files=$(git ls-files | grep -E "tools|tests|src|cmake-tests" \
                      | grep -E "\..*pp")
-clang-format --style=file --Werror --dry-run ${check_format_files[@]}
+clang-format --style=file --Werror --dry-run "${check_format_files[@]}"
 
 if ! command -v clang-tidy &>/dev/null; then
     echo "clang-tidy does not appear to be installed"

scripts/native-system-benchmark.sh

@@ -151,7 +151,7 @@ on_int() {
     printf 'Interrupting all components\n'
     trap '' SIGINT # avoid interrupting ourself
     for i in $PIDS; do # intentionally unquoted
-        if [[ -n "RECORD" ]]; then
+        if [[ -n "$RECORD" ]]; then
             kill -SIGINT -- "-$i"
         else
             kill -SIGINT -- "$i"
@@ -194,7 +194,7 @@ on_int() {
 
     printf 'Terminating any remaining processes\n'
     for i in $PIDS; do # intentionally unquoted
-        if [[ -n "RECORD" ]]; then
+        if [[ -n "$RECORD" ]]; then
             kill -SIGTERM -- "-$i"
         else
             kill -SIGTERM -- "$i"
@@ -253,15 +253,15 @@ run() {
     COMP=
     case "$RECORD" in
         perf)
-            $@ &> "$PROC_LOG" &
+            "$@" &> "$PROC_LOG" &
             COMP="$!"
             perf record -F 99 -a -g -o "$PNAME".perf -p "$COMP" &> "$PERF_LOG" &
             PERFS="$PERFS $!";;
         debug)
             ${DBG} "$@" &> "$PROC_LOG" &
             COMP="$!";;
         *)
-            $@ &> "$PROC_LOG" &
+            "$@" &> "$PROC_LOG" &
             COMP="$!";;
     esac
 
@@ -324,7 +324,7 @@ launch() {
                         "$RT"/scripts/wait-for-it.sh -q -t 5 -h localhost -p "$ep"
                     done
                     printf 'Launched logical %s %d, replica %d [PID: %d]\n' "$1" "$id" "$node" "$PID"
-                    if [[ -n "RECORD" ]]; then
+                    if [[ -n "$RECORD" ]]; then
                         PIDS="$PIDS $(getpgid $PID)"
                     else
                         PIDS="$PIDS $PID"
@@ -337,7 +337,7 @@ launch() {
                     "$RT"/scripts/wait-for-it.sh -q -t 5 -h localhost -p "$ep"
                 done
                 printf 'Launched %s %d [PID: %d]\n' "$1" "$id" "$PID"
-                if [[ -n "RECORD" ]]; then
+                if [[ -n "$RECORD" ]]; then
                     PIDS="$PIDS $(getpgid $PID)"
                 else
                     PIDS="$PIDS $PID"

scripts/shellcheck.sh

@@ -0,0 +1,56 @@
+#!/usr/bin/env bash
+
+# Usage: ./scripts/shellcheck.sh
+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
+
+if ! command -v shellcheck &>/dev/null; then
+    echo "shellcheck is not installed."
+    echo "Run 'sudo ./scripts/install-build-tools.sh' to install shellcheck."
+    exit 1
+fi
+
+# run shellcheck in parallel on all tracked shell scripts
+# checking status of this run will give failure if even a warning is found by default
+# info/warnings/errors are treated as unsuccessful, so we need to search the report for
+# explicit errors messages to determine if there are any true errors
+git ls-files '*.sh' | xargs -n 1 -P "${NUM_CORES}" shellcheck > "${SHELLCHECK_REPORT}"
+
+# if shell check report exists to determine if shellcheck run was successful
+if [[ -z "${SHELLCHECK_REPORT}" ]]; then
+    echo "Shellcheck report ${SHELLCHECK_REPORT} not found. Exiting..."
+    exit 1
+else
+    echo "Shellcheck report: ${SHELLCHECK_REPORT}"
+    if [[ ! -s "${SHELLCHECK_REPORT}" ]]; then
+        echo "Shellcheck report is empty."
+        echo "Either there are no info/warning/error messages across all shell scripts,"
+        echo "or shellcheck failed to run successfully."
+        exit 0
+    fi
+fi
+
+# view non-empty shellcheck report, includes info, warnings, errors
+if [[ "$#" -eq 1 && "$1" == "view" ]]; then
+    echo "Shellcheck report: ${SHELLCHECK_REPORT}"
+    cat "${SHELLCHECK_REPORT}"
+fi
+
+# detect if fatal errors are in shellcheck report
+echo "Checking for fatal errors in shellcheck report..."
+if ! grep "(error):" "${SHELLCHECK_REPORT}"; then
+    echo "Shellcheck found no fatal errors in report: ${SHELLCHECK_REPORT}"
+    echo "Shellcheck passed."
+    exit 0
+else
+    echo "Shellcheck found fatal errors in report: ${SHELLCHECK_REPORT}"
+    echo "Shellcheck failed."
+    exit 1
+fi

scripts/test-e2e-minikube.sh

@@ -7,7 +7,7 @@ BUILD_DOCKER=${TESTRUN_BUILD_DOCKER:-1}
 
 # Make sure we have the necessary tools installed
 required_executables=(minikube docker go helm kubectl)
-for e in ${required_executables[@]}; do
+for e in "${required_executables[@]}"; do
     if ! command -v $e &> /dev/null; then
         echo "'$e' command not be found! This is required to run. Please install it."
         exit 1

scripts/wait-for-it.sh

@@ -150,7 +150,7 @@ if [[ $WAITFORIT_TIMEOUT_PATH =~ "busybox" ]]; then
     WAITFORIT_ISBUSY=1
     # Check if busybox timeout uses -t flag
     # (recent Alpine versions don't support -t anymore)
-    if timeout &>/dev/stdout | grep -q -e '-t '; then
+    if timeout |& tee /dev/stdout | grep -q -e '-t '; then
         WAITFORIT_BUSYTIMEFLAG="-t"
     fi
 else