Migrate project to Go

Reviewed-on: #1

.drone.yml

@@ -3,8 +3,23 @@ type: docker
 name: build
 
 steps:
+- name: Build Go app
+  image: registry.cuzo.dev/library/golang
+  volumes:
+    - name: deps
+      path: /go
+  commands:
+    - GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -o bin/ cmd/drone-ntfy/main.go
+
 - name: Build docker image
   image: registry.cuzo.dev/plugins/docker
+  depends_on:
+  - Build Go app
+  when:
+    ref:
+      include:
+      - refs/heads/main
+      - refs/tags/**
   privileged: true
   volumes:
     - name: manifest
@@ -19,25 +34,16 @@ steps:
     password:
       from_secret: docker_hub_pass
 
-image_pull_secrets:
-- custom_mirror_registry
-
-trigger:
-  event:
-  - push
-  - tag
-  exclude:
-  - pull_request
-
----
-kind: pipeline
-type: docker
-name: manifest
-
-steps:
 - name: Upload manifest
   image: registry.cuzo.dev/plugins/manifest
   privileged: true
+  depends_on:
+  - Build docker image
+  when:
+    ref:
+      include:
+      - refs/heads/main
+      - refs/tags/**
   volumes:
     - name: manifest
       path: docker
@@ -52,25 +58,6 @@ steps:
       from_secret: docker_hub_pass
     platforms:
       - linux/amd64
-- name: send ntfy notification
-  image: registry.cuzo.dev/parrazam/drone-ntfy
-  when:
-    status: [success, failure]
-    ref:
-      exclude:
-      - refs/tags/*
-  settings:
-    url: https://ntfy.parravidales.es
-    topic: pipelines
-    priority: low
-    tags: manifest
-    username:
-      from_secret: ntfy_user
-    password:
-      from_secret: ntfy_password
-
-depends_on:
-- build
 
 image_pull_secrets:
 - custom_mirror_registry
@@ -82,6 +69,7 @@ trigger:
   exclude:
   - pull_request
 
+
 ---
 kind: pipeline
 type: docker
@@ -94,22 +82,9 @@ steps:
     api_key:
       from_secret: drone_api_key
     base_url: https://git.parravidales.es
-- name: send ntfy notification
-  image: registry.cuzo.dev/parrazam/drone-ntfy
-  when:
-      status: [success, failure]
-  settings:
-    url: https://ntfy.parravidales.es
-    topic: pipelines
-    priority: low
-    tags: release
-    username:
-      from_secret: ntfy_user
-    password:
-      from_secret: ntfy_password
 
 depends_on:
-- manifest
+- build
 
 image_pull_secrets:
 - custom_mirror_registry
@@ -117,3 +92,26 @@ image_pull_secrets:
 trigger:
   event:
   - tag
+
+
+---
+kind: pipeline
+type: docker
+name: notify
+
+steps:
+- name: send ntfy notification
+  image: registry.cuzo.dev/parrazam/drone-ntfy
+  settings:
+    url: https://ntfy.parravidales.es
+    topic: pipelines
+    priority: low
+    token:
+      from_secret: ntfy_token
+
+image_pull_secrets:
+- custom_mirror_registry
+
+depends_on:
+- build
+- release

.gitignore

@@ -0,0 +1,3 @@
+.vscode/
+bin/
+.env

Dockerfile

@@ -1,5 +1,4 @@
 FROM alpine
-ADD script.sh /bin/
-RUN chmod +x /bin/script.sh
-RUN apk -Uuv add curl ca-certificates
-ENTRYPOINT /bin/script.sh
+ADD bin/main /bin/main
+RUN apk -Uuv add ca-certificates
+ENTRYPOINT /bin/main

README.md

@@ -18,13 +18,11 @@ steps:
     url: https://ntfy.example.org
     topic: events
     priority: low
-    tags: 
+    tags:
       - pipeline-status
       - dev
-    username:
-      from_secret: ntfy_user
-    password:
-      from_secret: ntfy_password
+    token:
+      from_secret: ntfy_token
 ```
 
 ## Properties
@@ -54,3 +52,33 @@ Username with publish permissions.
 Password for username.
 
 > *Default: none*
+
+`token` *string* [optional] \
+[***SECRET RECOMMENDED***] \
+Token to use, instead username and password.
+
+> *Default: none*
+
+## Development
+
+If you want to test the project locally, first you need to create an `.env` file with:
+
+```env
+PLUGIN_TOPIC=
+PLUGIN_URL=
+PLUGIN_USERNAME=
+PLUGIN_PASSWORD=
+PLUGIN_TOKEN=
+CI_COMMIT_SHA=
+CI_COMMIT_MESSAGE=
+CI_REPO_NAME=
+CI_COMMIT_BRANCH=
+CI_COMMIT_REF=
+DRONE_BUILD_NUMBER=
+DRONE_BUILD_STATUS=
+DRONE_STAGE_NUMBER=
+DRONE_STAGE_STATUS=
+DRONE_TAG=
+DRONE_BUILD_LINK=
+DRONE_COMMIT_LINK=
+```

cmd/drone-ntfy/config/config.go

@@ -0,0 +1,30 @@
+package config
+
+type App struct {
+	BaseUrl     string   `env:"PLUGIN_URL" envDefault:"https://ntfy.sh"`
+	Topic       string   `env:"PLUGIN_TOPIC,required"`
+	Username    string   `env:"PLUGIN_USERNAME"`
+	Password    string   `env:"PLUGIN_PASSWORD"`
+	Token       string   `env:"PLUGIN_TOKEN"`
+	Title       string   `env:"PLUGIN_TITLE"`
+	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"`
+	Tag         string `env:"DRONE_TAG"`
+	BuildLink   string `env:"DRONE_BUILD_LINK"`
+	CommitLink  string `env:"DRONE_COMMIT_LINK"`
+	RepoName    string `env:"DRONE_REPO_NAME"`
+}
+
+type Ci struct {
+	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

@@ -0,0 +1,111 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+	"strings"
+
+	"git.parravidales.es/parra/drone-ntfy/cmd/drone-ntfy/config"
+	"github.com/caarlos0/env/v7"
+	"github.com/joho/godotenv"
+)
+
+type Config struct {
+	App   config.App
+	Drone config.Drone
+	Ci    config.Ci
+}
+
+func main() {
+
+	cfg := loadCfg()
+
+	updateAppConfig(&cfg)
+	addTagsBasedOnResult(&cfg)
+	sendNotification(&cfg)
+}
+
+func loadCfg() Config {
+
+	envErr := godotenv.Load()
+	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) {
+
+	cfg.App.Title = "Build #" + cfg.Drone.BuildNumber + " " + cfg.Drone.BuildStatus
+
+	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, cfg.Drone.RepoName+"/"+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", getActions(cfg))
+	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)
+	}
+}
+
+func getActions(cfg *Config) string {
+	var buildLink = "view, Build, " + cfg.Drone.BuildLink
+	if strings.Contains(cfg.Ci.CommitRef, "refs/tags/") {
+		return buildLink
+	}
+	return buildLink + "; view, Changes, " + cfg.Drone.CommitLink
+}

go.mod

@@ -0,0 +1,8 @@
+module git.parravidales.es/parra/drone-ntfy
+
+go 1.19
+
+require (
+	github.com/caarlos0/env/v7 v7.0.0
+	github.com/joho/godotenv v1.5.1
+)

go.sum

@@ -0,0 +1,4 @@
+github.com/caarlos0/env/v7 v7.0.0 h1:cyczlTd/zREwSr9ch/mwaDl7Hse7kJuUY8hvHfXu5WI=
+github.com/caarlos0/env/v7 v7.0.0/go.mod h1:LPPWniDUq4JaO6Q41vtlyikhMknqymCLBw0eX4dcH1E=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=

script.sh

@@ -1,68 +0,0 @@
-#!/bin/sh
-
-DEFAULT_TAGS="drone"
-BASE_URL=${PLUGIN_URL:-"https://ntfy.sh"}
-TOPIC=$PLUGIN_TOPIC # mandatory
-TITLE="Build #$DRONE_BUILD_NUMBER $DRONE_BUILD_STATUS"
-PRIORITY=${PLUGIN_PRIORITY:-"default"}
-TAGS=${PLUGIN_TAGS:-""}
-
-MESSAGE="[${CI_COMMIT_SHA:0:8}] $CI_COMMIT_MESSAGE"
-
-if [[ $CI_COMMIT_REF == *"refs/tags/"* ]]
-then
-  MESSAGE="Tag $DRONE_TAG created"
-  DEFAULT_TAGS="$DEFAULT_TAGS,$DRONE_TAG"
-else
-  DEFAULT_TAGS="$DEFAULT_TAGS,$CI_REPO_NAME/$CI_COMMIT_BRANCH"
-fi
-
-if [ -z "$TOPIC" ]
-then
-  echo "Topic cannot be empty.";
-  exit 1
-fi
-
-URL="$BASE_URL/$TOPIC"
-
-if [ $DRONE_BUILD_STATUS = "success" ]
-then
-  DEFAULT_TAGS="$DEFAULT_TAGS,white_check_mark"
-elif [ $DRONE_BUILD_STATUS = "failure" ]
-then
-  DEFAULT_TAGS="$DEFAULT_TAGS,x"
-else
-  DEFAULT_TAGS="$DEFAULT_TAGS,grey_question"
-fi
-
-TAGS="$DEFAULT_TAGS,$TAGS"
-TAGS=${TAGS%,}
-
-AUTH_HEADER=""
-if [ -z "$PLUGIN_USERNAME" ] || [ -z "$PLUGIN_PASSWORD" ]
-then
-  echo "Trying to publish message in a public topic..."
-else
-  AUTH_HEADER="-u $PLUGIN_USERNAME:$PLUGIN_PASSWORD"
-fi
-
-HTTP_STATUS=$(
-curl \
-  -o /dev/null -s -w "%{http_code}\n" \
-  --retry 3 --retry-delay 5 \
-  $AUTH_HEADER \
-  -H title:"$TITLE" \
-  -H tags:$TAGS \
-  -H prio:$PRIORITY \
-  -H "Actions: view, Build, $DRONE_BUILD_LINK; view, Changes, $DRONE_COMMIT_LINK" \
-  -d "$MESSAGE" \
-   $URL
-)
-
-if [ $? -eq 0 ] && [ $HTTP_STATUS -eq 200 ]
-then
-  echo "Message sent!"
-else
-  echo "Error publishing notification."
-  exit 2
-fi