lint: Skip and warn in case of old bash version

fjahr · brunoerg · fjahr · commit d8cc7993aa29 · 2022-04-04T22:03:32.000+02:00
co-authored-by: brunoerg &lt;brunoely.gc@gmail.com&gt;
diff --git a/test/lint/lint-python-dead-code.sh b/test/lint/lint-python-dead-code.sh
@@ -11,6 +11,9 @@ export LC_ALL=C
 if ! command -v vulture > /dev/null; then
     echo "Skipping Python dead code linting since vulture is not installed. Install by running \"pip3 install vulture\""
     exit 0
+elif [ "${BASH_VERSINFO:-0}" -lt 4 ]; then
+    echo "Skipping Python dead code linting since your bash version is less than 4."
+    exit 0
 fi
 
 # --min-confidence 100 will only report code that is guaranteed to be unused within the analyzed files.
diff --git a/test/lint/lint-python.sh b/test/lint/lint-python.sh
@@ -88,6 +88,9 @@ if ! command -v flake8 > /dev/null; then
 elif PYTHONWARNINGS="ignore" flake8 --version | grep -q "Python 2"; then
     echo "Skipping Python linting since flake8 is running under Python 2. Install the Python 3 version of flake8."
     exit 0
+elif [ "${BASH_VERSINFO:-0}" -lt 4 ]; then
+    echo "Skipping Python linting since your bash version is less than 4."
+    exit 0
 fi
 
 EXIT_CODE=0
diff --git a/test/lint/lint-shell.sh b/test/lint/lint-shell.sh
@@ -18,6 +18,9 @@ EXIT_CODE=0
 if ! command -v shellcheck > /dev/null; then
     echo "Skipping shell linting since shellcheck is not installed."
     exit $EXIT_CODE
+elif [ "${BASH_VERSINFO:-0}" -lt 4 ]; then
+    echo "Skipping shell linting since your bash version is less than 4."
+    exit $EXIT_CODE
 fi
 
 SHELLCHECK_CMD=(shellcheck --external-sources --check-sourced --source-path=SCRIPTDIR)
diff --git a/test/lint/lint-spelling.sh b/test/lint/lint-spelling.sh
@@ -12,6 +12,9 @@ export LC_ALL=C
 if ! command -v codespell > /dev/null; then
     echo "Skipping spell check linting since codespell is not installed."
     exit 0
+elif [ "${BASH_VERSINFO:-0}" -lt 4 ]; then
+    echo "Skipping spell check linting since your bash version is less than 4."
+    exit 0
 fi
 
 IGNORE_WORDS_FILE=test/lint/lint-spelling.ignore-words.txt
