track config file changes

.drone.yml

@@ -7,14 +7,20 @@ steps:
   commands:
   - make
 
+- name: create release tar
+  image: golang
+  commands:
+    - tar -czf release-$DRONE_TAG.tar.gz init/simpbot.service simpbot
+  when:
+    event: tag
+
 - name: release
   image: plugins/gitea-release
   settings:
     api_key:
       from_secret: gitea_token
     files:
-      - simpbot
-      - config.yml.sample
+      - release-$DRONE_TAG.tar.gz
     base_url: https://git.saintnet.tech
   when:
     event: tag

go.mod

@@ -3,6 +3,7 @@ module simpbot
 go 1.15
 
 require (
+	github.com/fsnotify/fsnotify v1.4.9 // indirect
 	github.com/spf13/viper v1.7.1
 	golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a // indirect
 	golang.org/x/net v0.0.0-20210520170846-37e1c6afe023 // indirect

go.sum

@@ -49,6 +49,8 @@ github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
+github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=
+github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
@@ -267,6 +269,7 @@ golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da h1:b3NXsE2LusjYGGjL5bxEVZZORm/YEFFrWFjR8eFrw/c=

main.go

@@ -3,9 +3,13 @@ package main
 import (
 	"fmt"
 	"log"
+	"os"
+	"os/signal"
 	"strings"
+	"syscall"
 	"time"
 
+	"github.com/fsnotify/fsnotify"
 	"github.com/spf13/viper"
 	"maunium.net/go/mautrix"
 	"maunium.net/go/mautrix/event"
@@ -100,15 +104,14 @@ func main() {
 			}
 		}
 	})
-	var vtubersRaw []VtuberConfig
-	err = viper.UnmarshalKey("vtubers", &vtubersRaw)
-	if err != nil {
-		panic(err)
-	}
-	for _, vt := range vtubersRaw {
-		log.Printf("adding vtuber %v", vt)
-		vtubers = append(vtubers, NewVtuber(vt.Name, vt.ChannelID, vt.LiveMsg))
-	}
+	sigs := make(chan os.Signal, 1)
+	signal.Notify(sigs, syscall.SIGUSR1)
+	vtubers = LoadVtubers()
+	viper.WatchConfig()
+	viper.OnConfigChange(func(e fsnotify.Event) {
+		fmt.Println("Config file changed,reloading vtubers:", e.Name)
+		vtubers = LoadVtubers()
+	})
 
 	go func() {
 		for {

vtuber.go

@@ -6,6 +6,8 @@ import (
 	"io/ioutil"
 	"log"
 	"net/http"
+
+	"github.com/spf13/viper"
 )
 
 type VtuberConfig struct {
@@ -30,6 +32,20 @@ func NewVtuber(name, channelID, liveMsg string) *Vtuber {
 	}
 }
 
+func LoadVtubers() []*Vtuber {
+	var vtubersRaw []VtuberConfig
+	var vtubers []*Vtuber
+	err := viper.UnmarshalKey("vtubers", &vtubersRaw)
+	if err != nil {
+		panic(err)
+	}
+	for _, vt := range vtubersRaw {
+		log.Printf("adding vtuber %v", vt)
+		vtubers = append(vtubers, NewVtuber(vt.Name, vt.ChannelID, vt.LiveMsg))
+	}
+	return vtubers
+}
+
 func (v *Vtuber) IsLive() bool {
 	return v.CurrentStream != ""
 }