From 69fc6e0797dde92d8d69979a97242e6a2ac0c6b3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Simon=20W=C3=B6rner?= <git@simon-woerner.de>
Date: Thu, 30 Mar 2017 16:40:56 +0200
Subject: [PATCH 1/2] added led.sh and gitlab-ci shellcheck

---
 .gitlab-ci.yml | 16 ++++++++++++++++
 V1/led.sh      | 44 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 60 insertions(+)
 create mode 100644 .gitlab-ci.yml
 create mode 100755 V1/led.sh

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000..fae1209
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,16 @@
+# image: scorpil/rust:stable
+
+stages:
+  - test
+
+shellcheck:
+  stage: test
+  image: ubuntu:yakkety
+  before_script:
+    - apt-get update && apt-get install -y shellcheck
+    - locale-gen en_US.UTF-8
+    - export LANG=en_US.UTF-8
+    - export LANGUAGE=en_US:en
+    - export LC_ALL=en_US.UTF-8
+  script:
+    - find . -type f -name '*.sh' -print0 | xargs -n 1 -0 shellcheck --color
diff --git a/V1/led.sh b/V1/led.sh
new file mode 100755
index 0000000..45fade7
--- /dev/null
+++ b/V1/led.sh
@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+# usage: led.sh <port>
+set -o xtrace
+
+# config default
+GPIO_PORT="${1:-18}"
+
+function export_port() {
+  port="${1}"
+  echo "${port}" > /sys/class/gpio/export
+}
+function unexport_port() {
+  port="${1}"
+  echo "${port}" > /sys/class/gpio/unexport
+}
+
+function set_value() {
+  port="${1}"
+  value="${2}"
+  echo "${value}" > "/sys/class/gpio/gpio${port}/value"
+}
+
+function on() {
+  port="${1}"
+  set_value "${port}" "0"
+}
+function off() {
+  port="${1}"
+  set_value "${port}" "1"
+}
+
+# set exit trap
+trap 'unexport_port "${GPIO_PORT}"' EXIT
+
+# init GPIO port
+export_port "${GPIO_PORT}"
+
+# loop led on/off
+while true; do
+  on "${GPIO_PORT}"
+  sleep 1
+  off "${GPIO_PORT}"
+  sleep 1
+done

From d7c15c5c7798ed4705e5c15b9e1fc83209b8519a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Simon=20W=C3=B6rner?= <git@simon-woerner.de>
Date: Thu, 30 Mar 2017 17:09:04 +0200
Subject: [PATCH 2/2] set gpio direction

---
 V1/led.sh | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/V1/led.sh b/V1/led.sh
index 45fade7..a0033e7 100755
--- a/V1/led.sh
+++ b/V1/led.sh
@@ -14,6 +14,12 @@ function unexport_port() {
   echo "${port}" > /sys/class/gpio/unexport
 }
 
+function set_direction() {
+  port="${1}"
+  value="${2}"
+  echo "${value}" > "/sys/class/gpio/gpio${port}/direction"
+}
+
 function set_value() {
   port="${1}"
   value="${2}"
@@ -34,6 +40,7 @@ trap 'unexport_port "${GPIO_PORT}"' EXIT
 
 # init GPIO port
 export_port "${GPIO_PORT}"
+set_direction "${GPIO_PORT}" "out"
 
 # loop led on/off
 while true; do