Initial draft of plugin.

entrypoint.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+set -eu;
+
+##
+## check if any markdown file is present
+##
+
+FILES=$(find "$(pwd)" -type f -name '*.md')
+if [[ ! "$FILES" ]]; then
+	echo "No markdown file found!"
+	exit 1
+fi
+
+##
+## build command
+##
+
+COMMAND="markdownlint"
+if [[ -n "${PLUGIN_CONFIG_FILE:-}" ]]; then
+	COMMAND+=" --config=$PLUGIN_CONFIG_FILE"
+fi
+if [[ "${PLUGIN_DOT:-true}" == "true" ]]; then
+	COMMAND+=" --dot"
+fi
+if [[ -n "${PLUGIN_ENABLE:-}" ]]; then
+	COMMAND+=" --enable=$PLUGIN_ENABLE"
+fi
+if [[ -n "${PLUGIN_DISABLE:-}" ]]; then
+	COMMAND+=" --disable=$PLUGIN_DISABLE"
+fi
+COMMAND+=" $(pwd)"
+
+# custom args, e.g. docker run --rm --volume=$(pwd):$(pwd) --workdir=$(pwd) --env=CI=test kokuwaio/yamllint --format=json
+if [[ -n "${1:-}" ]]; then
+	COMMAND+=" $*"
+fi
+
+##
+## build environment
+##
+
+echo "$COMMAND"
+eval "$COMMAND"