added github action (#135)

.github/lint-scripts.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+#
+# lint bash scripts
+#
+
+set -o errexit
+
+CONFIG_DIR=".github"
+HOOKS_DIR="hooks"
+CONTAINER_DIR="containers"
+
+TMP_FILE="$(mktemp)"
+
+find "${CONFIG_DIR}" -type f -name "*.sh" > "${TMP_FILE}"
+find "${HOOKS_DIR}" -type f -name "*.sh" >> "${TMP_FILE}"
+find "${CONTAINER_DIR}" -type f -name "*.sh" >> "${TMP_FILE}"
+
+while read -r FILE; do
+  echo lint "${FILE}"
+  shellcheck -x "${FILE}"
+done < "${TMP_FILE}"
+
+rm "${TMP_FILE}"

.github/workflows/ci.yaml

@@ -0,0 +1,27 @@
+name: ci
+
+on:
+  pull_request:
+
+jobs:
+  lint-bash-scripts:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+      - name: Lint Bash scripts
+        uses: docker://koalaman/shellcheck-alpine:v0.7.0
+        with:
+          args: .github/lint-scripts.sh
+
+  install-docker-compose:
+    name: install-docker-compose
+    runs-on: ubuntu-latest
+    needs: lint-bash-scripts
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+      - name: get containers
+        run: docker-compose pull
+      - name: install
+        run: docker-compose up