Load configs

.gitignore

@@ -1,2 +1,3 @@
 .vscode/
 bin/
+.env

cmd/drone-ntfy/config/config.go

@@ -0,0 +1,32 @@
+package config
+
+type App struct {
+	BaseUrl     string   `env:"PLUGIN_URL" envDefault:"https://ntfy.sh"`
+	Topic       string   `env:"PLUGIN_TOPIC" envDefault:"undefined"`
+	Username    string   `env:"PLUGIN_USERNAME"`
+	Password    string   `env:"PLUGIN_PASSWORD"`
+	Token       string   `env:"PLUGIN_TOKEN"`
+	Title       string   `env:"PLUGIN_TITLE" envDefault:"Drone notification"`
+	Priority    string   `env:"PLUGIN_PRIORITY" envDefault:"default"`
+	Tags        []string `env:"PLUGIN_TAGS" envSeparator:","`
+	DefaultTags []string `env:"PLUGIN_DEFAULT_TAGS" envDefault:"drone"`
+	Message     string   `env:"PLUGIN_MESSAGE"`
+}
+
+type Drone struct {
+	BuildNumber string `env:"DRONE_BUILD_NUMBER"`
+	BuildStatus string `env:"DRONE_BUILD_STATUS"`
+	StageName   string `env:"DRONE_STAGE_NUMBER"`
+	StageStatus string `env:"DRONE_STAGE_STATUS"`
+	Tag         string `env:"DRONE_TAG"`
+	BuildLink   string `env:"DRONE_BUILD_LINK"`
+	CommitLink  string `env:"DRONE_COMMIT_LINK"`
+}
+
+type Ci struct {
+	RepoName      string `env:"CI_REPO_NAME"`
+	CommitMessage string `env:"CI_COMMIT_MESSAGE"`
+	CommitSha     string `env:"CI_COMMIT_SHA"`
+	CommitBranch  string `env:"CI_COMMIT_BRANCH"`
+	CommitRef     string `env:"CI_COMMIT_REF"`
+}

cmd/drone-ntfy/main.go

@@ -1,50 +1,105 @@
 package main
 
 import (
-  "fmt"
-  "log"
-  "os"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"strings"
 
-  "github.com/caarlos0/env/v7"
+	"git.parravidales.es/parra/drone-ntfy/cmd/drone-ntfy/config"
+	"github.com/caarlos0/env/v7"
+	"github.com/joho/godotenv"
 )
 
 type Config struct {
-  BaseUrl  string   `env:"PLUGIN_BASE_URL" envDefault:"https://ntfy.sh"`
-  Topic    string   `env:"PLUGIN_TOPIC,required"`
-  Title    string   `env:"PLUGIN_TITLE" envDefault:"Drone notification"`
-  Priority string   `env:"PLUGIN_PRIORITY" envDefault:"default"`
-  Tags     []string `env:"PLUGIN_TAGS" envSeparator:","`
+	App   config.App
+	Drone config.Drone
+	Ci    config.Ci
 }
 
-type DroneConfig struct {
-  BuildNumber string `envPrefix:"DRONE_"`
-  StageName   string `envPrefix:"DRONE_"`
-  StageStatus string `envPrefix:"DRONE_"`
-}
-
-type CiConfig struct {
-  RepoName      string `envPrefix:"CI_"`
-  CommitMessage string `envPrefix:"CI_"`
-}
-
-const DEFAULT_PRIORITY = "default"
-
-const BASE_URL = "https://ntfy.sh"
-const TOPIC = ""
-const TITLE = ""
-const PRIORITY = ""
-const TAGS = ""
-
-const MESSAGE = "Build $DRONE_BUILD_NUMBER of $CI_REPO_NAME at stage $DRONE_STAGE_NAME $DRONE_STAGE_STATUS.\n\nCommit: $CI_COMMIT_MESSAGE"
-
 func main() {
 
-  fmt.Printf("Topic: %s\n", os.Environ())
-  cfg := Config{}
-  err := env.Parse(&cfg)
-  if err != nil {
-    log.Fatalf("unable to parse environment variables: %e", err)
-  }
+	fmt.Printf("Topic: %s\n", os.Environ())
+	cfg := loadCfg()
 
-  fmt.Printf("Config: %v\n", cfg)
+	updateAppConfig(&cfg)
+	addTagsBasedOnResult(&cfg)
+
+	fmt.Printf("App Config: %+v\n", cfg)
+	sendNotification(&cfg)
+}
+
+func loadCfg() Config {
+
+	envErr := godotenv.Load(".env")
+	if envErr != nil {
+		fmt.Printf("unable to load .env file: %e\n", envErr)
+	}
+
+	conf := Config{
+		App:   config.App{},
+		Drone: config.Drone{},
+		Ci:    config.Ci{},
+	}
+	loadConfig(&conf.App)
+	loadConfig(&conf.Drone)
+	loadConfig(&conf.Ci)
+
+	conf.App.Tags = append(conf.App.DefaultTags, conf.App.Tags...)
+
+	return conf
+}
+
+func loadConfig(cfg any) {
+	err := env.Parse(cfg)
+	if err != nil {
+		log.Fatalf("unable to parse environment variables: %e", err)
+	}
+}
+
+func updateAppConfig(cfg *Config) {
+
+	if strings.Contains(cfg.Ci.CommitRef, "refs/tags/") {
+		cfg.App.Tags = append(cfg.App.Tags, cfg.Drone.Tag)
+		cfg.App.Message = "Tag " + cfg.Drone.Tag + " created"
+	} else {
+		cfg.App.Tags = append(cfg.App.Tags, "branch "+cfg.Ci.CommitBranch)
+		cfg.App.Message = "[" + cfg.Ci.CommitSha[0:8] + "] " + cfg.Ci.CommitMessage
+	}
+}
+
+func addTagsBasedOnResult(cfg *Config) {
+
+	if cfg.Drone.BuildStatus == "success" {
+		cfg.App.Tags = append(cfg.App.Tags, "white_check_mark")
+	} else if cfg.Drone.BuildStatus == "failure" {
+		cfg.App.Tags = append(cfg.App.Tags, "x")
+	} else {
+		cfg.App.Tags = append(cfg.App.Tags, "grey_question")
+	}
+}
+
+func sendNotification(cfg *Config) {
+
+	req, _ := http.NewRequest("POST",
+		cfg.App.BaseUrl + "/" + cfg.App.Topic,
+		strings.NewReader(cfg.App.Message))
+
+	if cfg.App.Token != "" {
+		req.Header.Add("Authorization", "Bearer "+cfg.App.Token)
+	} else {
+		req.SetBasicAuth(cfg.App.Username, cfg.App.Password)
+	}
+	req.Header.Set("Title", cfg.App.Title)
+	req.Header.Set("Priority", cfg.App.Priority)
+	req.Header.Set("Tags", strings.Join(cfg.App.Tags, ","))
+	req.Header.Set("Actions", "view, Build, "+cfg.Drone.BuildLink+"; view, Changes, "+cfg.Drone.CommitLink)
+	res, err := http.DefaultClient.Do(req)
+	if err != nil {
+		log.Fatalf("error trying to notify the result. Error: %+v", err)
+	}
+	if res.StatusCode != 200 {
+		log.Fatalf("error from server. HTTP status: %d. Error: %e", res.StatusCode, err)
+	}
 }