ci: linter (#14)

* ci: add linter

* chore: update dependencies

* remove package.json

* feat: use enums

* ci: rename workflow

.github/workflows/docker.yml

@@ -1,4 +1,4 @@
-name: Publish Release
+name: docker
 
 on:
   workflow_dispatch:
@@ -16,7 +16,7 @@ on:
     branches: ["main"]
 
 jobs:
-  build_docker_release:
+  build_and_push:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
@@ -33,7 +33,6 @@ jobs:
             ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}
           tags: |
             type=raw,value=latest,enable=${{ github.event_name == 'release' }}
-            type=sha
             type=ref,event=branch
             type=ref,event=pr
             type=raw,value=${{ inputs.tags }},enable=${{ github.event_name == 'workflow_dispatch' }}

.github/workflows/test.yml

@@ -13,7 +13,14 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
+
       - name: Run unit tests
         run: go test -v ./src/tests
+
       - name: Run formatter
         run: test -z $(gofmt -l ./src)
+
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v3
+        with:
+          version: v1.55.2

Dockerfile

@@ -10,7 +10,6 @@ RUN go build -o /go/bin/immich-exporter ./src
 FROM alpine:3.18
 
 COPY --from=builder /go/bin/immich-exporter /go/bin/immich-exporter
-COPY package.json /go/bin/
 
 WORKDIR /go/bin
 

go.mod

@@ -16,5 +16,5 @@ require (
 	github.com/prometheus/common v0.45.0 // indirect
 	github.com/prometheus/procfs v0.12.0 // indirect
 	golang.org/x/sys v0.15.0 // indirect
-	google.golang.org/protobuf v1.31.0 // indirect
+	google.golang.org/protobuf v1.32.0 // indirect
 )

go.sum

@@ -5,8 +5,6 @@ github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XL
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
-github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
 github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
@@ -31,10 +29,8 @@ github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.15.0 h1:h48lPFYpsTvQJZF4EKyI4aLHaev3CxivZmv7yZig9pc=
 golang.org/x/sys v0.15.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+google.golang.org/protobuf v1.32.0 h1:pPC6BG5ex8PDFnkbrGU3EixyhKcQ2aDuBS36lqK/C7I=
-google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+google.golang.org/protobuf v1.32.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
-google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
-google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

makefile

@@ -0,0 +1,14 @@
+build: 
+	go build -o ./qbittorrent-exporter.out ./src
+dev : 
+	go run ./src
+dev-env : 
+	go run ./src -e
+format : 
+	go fmt ./src
+lint: 
+	docker run --rm -v ./:/app -w /app golangci/golangci-lint:latest golangci-lint run -v
+test: 
+	go test -v ./src/tests
+update: 
+	go get -u ./src && go mod tidy

package.json

@@ -1,24 +0,0 @@
-{
-  "name": "immich-exporter",
-  "version": "1.2.0",
-  "description": "exporter for immich",
-  "main": "src/main.go",
-  "scripts": {
-    "build" : "go build -o ./immich-exporter.out ./src && ./immich-exporter.out",
-    "build:env" : "go build -o ./immich-exporter.out ./src && ./immich-exporter.out -e",
-    "dev" : "go run ./src",
-    "dev:env" : "go run ./src -e",
-    "test": "go test -v ./src/tests",
-    "update": "go get -u ./src && go mod tidy"
-  },
-  "keywords": [
-    "exporter",
-    "immich",
-    "grafana",
-    "dashboard",
-    "metrics",
-    "prometheus"
-  ],
-  "author": "martabal",
-  "license": "MIT"
-}

src/immich/data.go

@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"immich-exp/src/models"
-	"io/ioutil"
+	"io"
 
 	"net/http"
 	"sync"
@@ -22,6 +22,28 @@ var (
 	mutex sync.Mutex
 )
 
+type Data struct {
+	URL        string
+	HTTPMethod string
+}
+
+var httpGetUsers = Data{
+	URL:        "/api/user?isAll=true",
+	HTTPMethod: http.MethodGet,
+}
+var httpServerVersion = Data{
+	URL:        "/api/server-info/version",
+	HTTPMethod: http.MethodGet,
+}
+var httpStatistics = Data{
+	URL:        "/api/server-info/statistics",
+	HTTPMethod: http.MethodGet,
+}
+var httpGetJobs = Data{
+	URL:        "/api/jobs",
+	HTTPMethod: http.MethodGet,
+}
+
 var unmarshalError = "Can not unmarshal JSON"
 
 func Allrequests(r *prometheus.Registry) {
@@ -63,10 +85,10 @@ func Analyze(r *prometheus.Registry) {
 
 func GetAllUsers(c chan func() (*models.StructAllUsers, error)) {
 	defer wg.Done()
-	resp, err := Apirequest("/api/user?isAll=true", "GET")
+	resp, err := Apirequest(httpGetUsers.URL, httpGetUsers.HTTPMethod)
 	if err == nil {
 
-		body, err := ioutil.ReadAll(resp.Body)
+		body, err := io.ReadAll(resp.Body)
 		if err != nil {
 			log.Fatalln(err)
 		} else {
@@ -85,10 +107,10 @@ func GetAllUsers(c chan func() (*models.StructAllUsers, error)) {
 
 func ServerVersion(r *prometheus.Registry) {
 	defer wg.Done()
-	resp, err := Apirequest("/api/server-info/version", "GET")
+	resp, err := Apirequest(httpServerVersion.URL, httpServerVersion.HTTPMethod)
 	if err == nil {
 
-		body, err := ioutil.ReadAll(resp.Body)
+		body, err := io.ReadAll(resp.Body)
 		if err != nil {
 			log.Fatalln(err)
 		} else {
@@ -105,10 +127,10 @@ func ServerVersion(r *prometheus.Registry) {
 
 func ServerInfo(c chan func() (*models.StructServerInfo, error)) {
 	defer wg.Done()
-	resp, err := Apirequest("/api/server-info/statistics", "GET")
+	resp, err := Apirequest(httpStatistics.URL, httpStatistics.HTTPMethod)
 	if err == nil {
 
-		body, err := ioutil.ReadAll(resp.Body)
+		body, err := io.ReadAll(resp.Body)
 		if err != nil {
 			log.Fatalln(err)
 		} else {
@@ -126,10 +148,10 @@ func ServerInfo(c chan func() (*models.StructServerInfo, error)) {
 
 func GetAllJobsStatus(c chan func() (*models.StructAllJobsStatus, error)) {
 	defer wg.Done()
-	resp, err := Apirequest("/api/jobs", "GET")
+	resp, err := Apirequest(httpGetJobs.URL, httpGetJobs.HTTPMethod)
 	if err == nil {
 
-		body, err := ioutil.ReadAll(resp.Body)
+		body, err := io.ReadAll(resp.Body)
 		if err != nil {
 			log.Fatalln(err)
 		} else {
@@ -158,7 +180,7 @@ func Apirequest(uri string, method string) (*http.Response, error) {
 	if err != nil {
 		err := fmt.Errorf("Can't connect to server")
 		mutex.Lock()
-		if models.GetPromptError() == false {
+		if !models.GetPromptError() {
 			log.Error(err.Error())
 			models.SetPromptError(true)
 		}
@@ -175,17 +197,15 @@ func Apirequest(uri string, method string) (*http.Response, error) {
 		mutex.Unlock()
 		return resp, nil
 	case http.StatusNotFound:
-		err := fmt.Errorf("%d", resp.StatusCode)
 
 		log.Fatal("Error code ", resp.StatusCode, " for ", models.Getbaseurl()+uri)
 
-		return resp, err
+		return resp, fmt.Errorf("%d", resp.StatusCode)
 	case http.StatusUnauthorized, http.StatusForbidden:
-		err := fmt.Errorf("%d", resp.StatusCode)
 
 		log.Fatal("Api key unauthorized")
 
-		return resp, err
+		return resp, fmt.Errorf("%d", resp.StatusCode)
 	default:
 		err := fmt.Errorf("%d", resp.StatusCode)
 		mutex.Lock()

src/init.go

@@ -1,7 +1,6 @@
 package main
 
 import (
-	"encoding/json"
 	"flag"
 	"fmt"
 	immich "immich-exp/src/immich"
@@ -20,16 +19,24 @@ import (
 )
 
 const DEFAULTPORT = 8090
+const AUTHOR = "martabal"
+const VERSION = "1.2.0"
+const PROJECT_NAME = "immich-exporter"
 
 func main() {
 	loadenv()
-	projectinfo()
+	fmt.Printf("%s (version %s)\n", PROJECT_NAME, VERSION)
+	fmt.Println("Author: ", AUTHOR)
+	fmt.Println("Using log level: ", log.GetLevel())
 	log.Info("Immich URL: ", models.Getbaseurl())
 	log.Info("Started")
 	http.HandleFunc("/metrics", metrics)
 	addr := ":" + strconv.Itoa(models.GetPort())
 	log.Info("Listening on port ", models.GetPort())
-	http.ListenAndServe(addr, nil)
+	err := http.ListenAndServe(addr, nil)
+	if err != nil {
+		log.Fatalln(err)
+	}
 }
 
 func metrics(w http.ResponseWriter, r *http.Request) {
@@ -40,25 +47,6 @@ func metrics(w http.ResponseWriter, r *http.Request) {
 	h.ServeHTTP(w, r)
 }
 
-func projectinfo() {
-	fileContent, err := os.ReadFile("./package.json")
-	if err != nil {
-		log.Fatal(err)
-		return
-	}
-
-	var res map[string]interface{}
-	err = json.Unmarshal(fileContent, &res)
-	if err != nil {
-		log.Fatal(err)
-		return
-	}
-
-	fmt.Print(res["name"], " (version ", res["version"], ")\n")
-	fmt.Print("Author: ", res["author"], "\n")
-	fmt.Print("Using log level: ", log.GetLevel(), "\n")
-}
-
 func loadenv() {
 	var envfile bool
 	flag.BoolVar(&envfile, "e", false, "Use .env file")