Initial draft of plugin.

entrypoint.sh

@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+set -eu;
+
+##
+## build command
+##
+
+COMMAND="hadolint"
+if [[ -n "${PLUGIN_FORMAT:-}" ]]; then
+	COMMAND+=" --format=$PLUGIN_FORMAT"
+fi
+if [[ -n "${PLUGIN_FAILURE_THRESHOLD:-}" ]]; then
+	COMMAND+=" --failure-threshold=$PLUGIN_FAILURE_THRESHOLD"
+else
+	COMMAND+=" --failure-threshold=style"
+fi
+if [[ "${PLUGIN_STRICT_LABELS:-}" == "true" ]]; then
+	COMMAND+=" --strict-labels"
+fi
+if [[ "${PLUGIN_VERBOSE:-}" == "true" ]]; then
+	COMMAND+=" --verbose"
+fi
+if [[ "${PLUGIN_DISABLE_IGNORE_PRAGMA:-}" == "true" ]]; then
+	COMMAND+=" --disable-ignore-pragmal"
+fi
+if [[ "${PLUGIN_NO_COLOR:-}" == "true" ]]; then
+	COMMAND+=" --no-color"
+fi
+if [[ "${PLUGIN_NO_FAIL:-}" == "true" ]]; then
+	COMMAND+=" --no-fail"
+fi
+
+# custom args, e.g. docker run --rm --volume=$(pwd):$(pwd) --workdir=$(pwd) --env=CI=test kokuwaio/hadolint --format=json
+if [[ -n "${1:-}" ]]; then
+	COMMAND+=" $*"
+fi
+
+##
+## collect files
+##
+
+FILES=$(find "$(pwd)" -type f \
+	\( -name 'Dockerfile' \
+	-o -name 'Containerfile' \) \
+	-not -path '*/node_modules/*')
+if [[ ! "$FILES" ]]; then
+	echo "No files found!"
+	exit 1
+fi
+for FILE in ${FILES}; do
+	COMMAND+=" \n $FILE"
+done
+
+##
+## evecute command
+##
+
+if [[ -n "${CI:-}" ]]; then
+	echo "$COMMAND"
+else
+	echo "${COMMAND//\\n/}"
+fi
+eval "${COMMAND//\\n/}"