From 49cf99f4d9a0e41af66e57cd551cb8d0e4e3857e Mon Sep 17 00:00:00 2001
From: Clayton Craft <clayton@craftyguy.net>
Date: Tue, 10 Aug 2021 19:02:37 -0700
Subject: [PATCH] ci: add initial config for gitlab CI

Just checks linting, and build/test.
---
 .gitlab-ci.yml            | 43 +++++++++++++++++++++++++++++++++++++++
 .gitlab-ci/check_gofmt.sh | 11 ++++++++++
 2 files changed, 54 insertions(+)
 create mode 100644 .gitlab-ci.yml
 create mode 100755 .gitlab-ci/check_gofmt.sh

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000..27d9b2f
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,43 @@
+---
+
+# global settings
+image: alpine:latest
+
+stages:
+  - lint
+  - build
+
+# defaults for "only"
+# We need to run the CI jobs in a "merge request specific context", if CI is
+# running in a merge request. Otherwise the environment variable that holds the
+# merge request ID is not available. This means, we must set the "only"
+# variable accordingly - and if we only do it for one job, all other jobs will
+# not get executed. So have the defaults here, and use them in all jobs that
+# should run on both the master branch, and in merge requests.
+# https://docs.gitlab.com/ee/ci/merge_request_pipelines/index.html#excluding-certain-jobs
+.only-default: &only-default
+  only:
+    - master
+    - merge_requests
+    - tags
+
+# device documentation
+gofmt linting:
+  stage: lint
+  allow_failure: true
+  <<: *only-default
+  before_script:
+    - apk -q add go
+  script:
+    - .gitlab-ci/check_gofmt.sh
+
+build:
+  stage: build
+  <<: *only-default
+  before_script:
+    - apk -q add go
+  script:
+    - go build -v
+    - go test ./...
+  artifacts:
+    expire_in: 1 week
diff --git a/.gitlab-ci/check_gofmt.sh b/.gitlab-ci/check_gofmt.sh
new file mode 100755
index 0000000..dd24d7d
--- /dev/null
+++ b/.gitlab-ci/check_gofmt.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+files="$(gofmt -l .)"
+
+[ -z "$files" ] && exit 0
+
+# run gofmt to print out the diff of what needs to be changed
+
+gofmt -d -e .
+
+exit 1