Initial draft of plugin.

entrypoint.sh

@@ -0,0 +1,65 @@
+#!/usr/bin/env bash
+set -eu;
+
+##
+## build command
+##
+
+COMMAND="shellcheck"
+if [[ -n "${PLUGIN_FORMAT:-}" ]]; then
+	COMMAND+=" --format=$PLUGIN_FORMAT"
+fi
+if [[ -n "${PLUGIN_COLOR:-}" ]]; then
+	COMMAND+=" --color=$PLUGIN_COLOR"
+else
+	COMMAND+=" --color=always"
+fi
+if [[ -n "${PLUGIN_SHELL:-}" ]]; then
+	COMMAND+=" --shell=$PLUGIN_SHELL"
+fi
+if [[ -n "${PLUGIN_SEVERITY:-}" ]]; then
+	COMMAND+=" --severity=$PLUGIN_SEVERITY"
+fi
+if [[ -n "${PLUGIN_INCLUDE:-}" ]]; then
+	COMMAND+=" --include=$PLUGIN_INCLUDE"
+fi
+if [[ -n "${PLUGIN_EXCLUDE:-}" ]]; then
+	COMMAND+=" --exclude=$PLUGIN_EXCLUDE"
+fi
+
+# custom args, e.g. docker run --rm --volume=$(pwd):$(pwd) --workdir=$(pwd) --env=CI=test kokuwaio/shellcheck --format=json
+if [[ -n "${1:-}" ]]; then
+	COMMAND+=" $*"
+fi
+
+##
+## collect files (https://www.shellcheck.net/wiki/Recursiveness)
+##
+
+FILES=$(find "$(pwd)" -type f \
+	\( -name '*.sh' \
+	-o -name '*.ksh' \
+	-o -name '*.bash' \
+	-o -name '*.bashrc' \
+	-o -name '*.bash_profile' \
+	-o -name '*.bash_login' \
+	-o -name '*.bash_logout' \) \
+	-not -path '*/node_modules/*')
+if [[ ! "$FILES" ]]; then
+	echo "No files found!"
+	exit 1
+fi
+for FILE in ${FILES}; do
+	COMMAND+=" \n $FILE"
+done
+
+##
+## execute command
+##
+
+if [[ -n "${CI:-}" ]]; then
+	echo -e "$COMMAND"
+else
+	echo -e "${COMMAND//\\n/}"
+fi
+eval "${COMMAND//\\n/}"