Provided basic go project structure

.gitignore

+config.toml
+main
+spearhead
+
+# Test binary, build with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out

.gitlab-ci.yml

+image: golang:latest
+
+variables:
+  REPO_NAME: git.gfz-potsdam.de/dynamicexposure/openbuildingmap/spearhead
+
+before_script:
+  - go version
+  - mkdir -p $GOPATH/src/$(dirname $REPO_NAME)
+  - ln -svf $CI_PROJECT_DIR $GOPATH/src/$REPO_NAME
+  - cd $GOPATH/src/$REPO_NAME
+
+stages:
+  - test
+  - build
+
+format:
+  stage: test
+  script:
+    - go fmt $(go list ./... | grep -v /vendor/)
+    - go vet $(go list ./... | grep -v /vendor/)
+    - go test -race $(go list ./... | grep -v /vendor/)
+
+compile:
+  stage: build
+  script:
+    - go build -race -ldflags "-extldflags '-static'" -o $CI_PROJECT_DIR/spearhead
+  artifacts:
+    paths:
+      - spearhead

go.mod

+module git.gfz-potsdam.de/dynamicexposure/openbuildingmap/spearhead
+
+go 1.15

main.go

+/*
+ * spearhead
+ *
+ * Copyright (C) 2021:
+ *   Helmholtz-Zentrum Potsdam Deutsches GeoForschungsZentrum GFZ
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see http://www.gnu.org/licenses/.
+ */
+
+package main
+
+import (
+	"log"
+)
+
+/*
+* Main function
+ */
+func main() {
+	log.Println("Hello world")
+}

main_test.go

+/*
+ * spearhead
+ *
+ * Copyright (C) 2021:
+ *   Helmholtz-Zentrum Potsdam Deutsches GeoForschungsZentrum GFZ
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see http://www.gnu.org/licenses/.
+ */
+
+package main
+
+import (
+	"testing"
+)
+
+func TestMain(t *testing.T) {
+	err := error(nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+}