From 8f7966cab305d4c1169e56df6f75d0fd89f58aac Mon Sep 17 00:00:00 2001
From: Hector <hector@hjs.dev>
Date: Thu, 22 Jun 2023 19:15:02 +0100
Subject: [PATCH 1/3] add vet command and step to pipeline

---
 .gitlab-ci.yml | 6 ++++++
 Makefile       | 5 +++++
 2 files changed, 11 insertions(+)

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 668d3fb..c514e4e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -19,6 +19,12 @@ format:
   script:
     - make check/fmt
 
+vet:
+  extends: .go_template
+  stage: test
+  script:
+    - make vet
+
 test:
   extends: .go_template
   stage: test
diff --git a/Makefile b/Makefile
index e1854b8..4421341 100644
--- a/Makefile
+++ b/Makefile
@@ -20,6 +20,11 @@ update:
 test: download
 	go test ./... -v -race
 
+# Look for "suspicious constructs" in source code
+.PHONY: vet
+vet: download
+	go vet ./...
+
 # Format code
 .PHONY: fmt
 fmt: download

From f39b34745ac9a38ddd554a16acb705ed380125bc Mon Sep 17 00:00:00 2001
From: Hector <hector@hjs.dev>
Date: Thu, 22 Jun 2023 19:17:03 +0100
Subject: [PATCH 2/3] allow failure of vet step

---
 .gitlab-ci.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c514e4e..a7e3c55 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -22,6 +22,7 @@ format:
 vet:
   extends: .go_template
   stage: test
+  allow_failure: true
   script:
     - make vet
 

From a5d2c98517ab7c3c0a2847d078df395d0dfadbd8 Mon Sep 17 00:00:00 2001
From: Hector <hector@hjs.dev>
Date: Thu, 22 Jun 2023 19:20:46 +0100
Subject: [PATCH 3/3] fix issue raised by go vet

---
 exporter.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/exporter.go b/exporter.go
index 6e7ae25..5dc6e0d 100644
--- a/exporter.go
+++ b/exporter.go
@@ -53,7 +53,7 @@ func main() {
 }
 
 func handleGracefulShutdown() {
-	var signals = make(chan os.Signal)
+	var signals = make(chan os.Signal, 1)
 
 	signal.Notify(signals, syscall.SIGTERM)
 	signal.Notify(signals, syscall.SIGINT)