update docker file

Dockerfile

@@ -6,16 +6,20 @@ ENV GOPATH /gopath
 ENV GOBIN /gopath/bin
 ENV PATH $PATH:$GOROOT/bin:$GOPATH/bin
 
+# Deps that rarely change
+RUN apk add --update ffmpeg opus bash && \
+  rm -rf /usr/share/man /tmp/* /var/tmp/* /var/cache/apk/*
+
 COPY . /gopath/src/github.com/dustinblackman/speakerbot
 
-RUN apk add --update ffmpeg opus opus-dev bash git make pkgconfig build-base && \
+RUN apk add --update opus-dev git make pkgconfig build-base && \
   apk add go --update-cache --repository http://dl-cdn.alpinelinux.org/alpine/edge/community/ --allow-untrusted && \
   cd /gopath/src/github.com/dustinblackman/speakerbot && \
   make && \
   make build && \
   mkdir /app && \
   mv ./speakerbot /app/ && \
-  apk del go git make pkgconfig opus-dev build-base && \
+  apk del go opus-dev git make pkgconfig build-base && \
   rm -rf /usr/share/man /tmp/* /var/tmp/* /var/cache/apk/* /gopath
 
 WORKDIR /app

youtube.go

@@ -105,7 +105,6 @@ func (y *youtube) findVideoID(videoID string) error {
 	}
 
 	y.videoID = videoID
-	fmt.Println(videoID)
 	if strings.ContainsAny(videoID, "?&/<%=") {
 		return errors.New("invalid characters in video id")
 	}