BATS: require `shellcheck` on test files

BATS: add `*.bats` to `.gitattributes`

.gitattributes

@@ -1,5 +1,6 @@
 *.sh text eol=lf
 *.bash text eol=lf
+*.bats text eol=lf
 
 # Docs allow trailing whitespaces
 *.md whitespace=-blank-at-eol

.pre-commit-config.yaml

@@ -19,7 +19,6 @@ repos:
     hooks:
       - id: git-check  # Configure in .gitattributes
       - id: shellcheck
-        exclude: ".bats$"
       - id: shfmt
         exclude: ".bats$"
   - repo: https://github.com/Lucas-C/pre-commit-hooks
@@ -38,10 +37,9 @@ repos:
         types: [file]
       - id: dot-bash
         name: Check .bash files against bash-it requirements
-        exclude: "test/test_helper.bash"
         entry: ./hooks/dot-bash.sh
         language: system
-        files: "\\.bash$"
+        files: "\\.ba[ts][sh]$"
         types: [file]
       - id: clean-files-txt
         name: Check that clean_files.txt is sorted alphabetically.

hooks/dot-bash.sh

@@ -12,7 +12,8 @@ for file in "$@"; do
 	# Confirm expected schellcheck header
 	#
 	LINE1="$(head -n 1 "${file}")"
-	if [[ "${LINE1}" != "# shellcheck shell=bash" ]]; then
+	SCSH="${file##*.}"
+	if [[ "${LINE1}" != "# shellcheck shell=${SCSH}" ]]; then
 		echo "Bash include file \`${file}\` has bad/missing shellcheck header"
 		exit_code=1
 	fi