Opt: update install script and dockerfile

Dockerfile

@@ -6,28 +6,26 @@ WORKDIR /synctv
 
 COPY ./ ./
 
-RUN apk add --no-cache bash curl gcc git go musl-dev
-
-RUN bash script/build.sh -P -v ${VERSION}
+RUN apk add --no-cache bash curl gcc git go musl-dev && \
+    bash script/build.sh -P -v ${VERSION}
 
 From alpine:latest
 
+ENV PUID=0 PGID=0 UMASK=022
+
 COPY --from=builder /synctv/build/synctv /usr/local/bin/synctv
 
 COPY script/entrypoint.sh /entrypoint.sh
 
-RUN apk add --no-cache bash ca-certificates su-exec tzdata
-
-RUN chmod +x /entrypoint.sh
-
-ENV PUID=0 PGID=0 UMASK=022
-
-RUN mkdir -p ~/.synctv
+RUN apk add --no-cache bash ca-certificates su-exec tzdata && \
+    rm -rf /var/cache/apk/* && \
+    chmod +x /entrypoint.sh && \
+    mkdir -p ~/.synctv
 
 WORKDIR ~/.synctv
 
 EXPOSE 8080/tcp 8080/udp
 
-VOLUME [ ~/.synctv ]
+VOLUME [ "~/.synctv" ]
 
 CMD [ "/entrypoint.sh" ]

script/install.sh

@@ -12,6 +12,11 @@ function Help() {
 }
 
 function Init() {
+    # Check if the user is root or sudo
+    if [ "$EUID" -ne 0 ]; then
+        echo "Please run as root"
+        exit
+    fi
     VERSION="latest"
     InitOS
     InitArch
@@ -112,7 +117,7 @@ function InitDownloadTools() {
 function Download() {
     case "$download_tool" in
     curl)
-        curl -L "$1" -o "$2"
+        curl -L "$1" -o "$2" --progress-bar
         if [ $? -ne 0 ]; then
             echo "download $1 failed"
             exit 1
@@ -178,6 +183,10 @@ function InstallWithVersion() {
 }
 
 function InitLinuxSystemctlService() {
+    if [ -z "$(command -v systemctl)" ]; then
+        echo "systemctl command not found"
+        exit 1
+    fi
     mkdir -p "/opt/synctv"
     if [ ! -d "/etc/systemd/system" ]; then
         echo "/etc/systemd/system not found"
@@ -214,14 +223,6 @@ function InitSystemctlService() {
     linux)
         InitLinuxSystemctlService
         ;;
-    darwin)
-        echo "darwin not support"
-        exit 1
-        ;;
-    *)
-        echo "OS not supported"
-        exit 1
-        ;;
     esac
 }