main: add a retry amount for getHonks

should fix #8.
also add changelog.

1 files changed, 18 insertions, 10 deletions

diff --git a/main.go b/main.go
index 1c0bd07..14fbcd4 100644
--- a/main.go
+++ b/main.go
@@ -86,7 +86,7 @@ type Donk struct {
 //   - it contains a `#notg` tag.
 //   - it is empty
 func (h *Honk) Check() error {
-	log.Print("checking honk #", h.ID)
+	log.Print("checking honk #", h.ID) // info
 	if h.Date.Before(now) {
 		return fmt.Errorf("honk #%d is old", h.ID)
 	}
@@ -146,8 +146,6 @@ const (
 	honkEdit
 )
 
-const emptyNoise = "<p></p>\n"
-
 // A Mess holds data for a message to be sent to Telegram.
 type Mess struct {
 	Text             string `json:"text"`
@@ -362,6 +360,8 @@ var (
 	reBqTags = regexp.MustCompile(`<blockquote>(.*)<\/blockquote>`)
 )
 
+const emptyNoise = "<p></p>\n"
+
 // calmNoise erases htm tags that are not supported by Telegram.
 func calmNoise(noise string) string {
 	// TODO: check length of a honk
@@ -394,11 +394,11 @@ func init() {
 
 	err := config.Check()
 	if err != nil {
-		log.Fatal("config:", err)
+		log.Fatal("config:", err) // fail
 	}
 	err = checkTgAPI()
 	if err != nil {
-		log.Fatal(err)
+		log.Fatal(err) // fail
 	}
 }
 
@@ -407,12 +407,20 @@ var honkMap = make(map[string]honkInfo) // FIXME: not safe for use by multiple g
 var now = time.Now()
 
 func main() {
+	var retry = 5
 
 	for {
 		honks, err := getHonks(0)
 		if err != nil {
-			log.Fatal("gethonks:", err)
+			log.Print("gethonks:", err) // error
+			retry--
+			if retry == 0 {
+				log.Fatal("gethonks: giving up") // fail
+			}
+			time.Sleep(5 * time.Second)
+			continue
 		}
+
 	HonkLoop:
 		for _, honk := range honks {
 			action := honk.Decide()
@@ -422,7 +430,7 @@ func main() {
 			case honkSend, honkEdit:
 				err := honk.Check()
 				if err != nil {
-					log.Print(err)
+					log.Print(err) // error
 					continue
 				}
 			}
@@ -430,8 +438,8 @@ func main() {
 			// messes[0] is a honk or a donk to be sent
 			resp, err := messes[0].Send()
 			if err != nil {
-				log.Print(err)
-				honk.forget() // retry
+				log.Print(err) // error
+				honk.forget()  // retry
 				continue
 			}
 			// remember only the first mess' response
@@ -439,7 +447,7 @@ func main() {
 			for _, mess := range messes[1:] {
 				_, err := mess.Send()
 				if err != nil {
-					log.Print(err)
+					log.Print(err) // error
 					continue HonkLoop
 				}
 			}