Add download_webclient.sh script.

.gitignore

@@ -19,3 +19,4 @@ web-client
 .*libreelec*
 toolchain.cmake
 .sublime-settings
+.last_wc_version

download_webclient.sh

@@ -0,0 +1,70 @@
+#!/bin/bash
+cd "$(dirname "$0")"
+
+function download_compat {
+    if [[ "$AZ_CACHE" != "" ]]
+    then
+        download_id=$(echo "$2" | md5sum | sed 's/ .*//g')
+        if [[ -e "$AZ_CACHE/$3/$download_id" ]]
+        then
+            echo "Cache hit: $AZ_CACHE/$3/$download_id"
+            cp "$AZ_CACHE/$3/$download_id" "$1"
+            return
+        elif [[ "$3" != "" ]]
+        then
+            rm -r "$AZ_CACHE/$3" 2> /dev/null
+        fi
+    fi
+    if [[ "$(which wget 2>/dev/null)" != "" ]]
+    then
+        wget -qO "$1" "$2"
+    else [[ "$(which curl)" != "" ]]
+        curl -sL "$2" > "$1"
+    fi
+    if [[ "$AZ_CACHE" != "" ]]
+    then
+        echo "Saving to: $AZ_CACHE/$3/$download_id"
+        mkdir -p "$AZ_CACHE/$3/"
+        cp "$1" "$AZ_CACHE/$3/$download_id"
+    fi
+}
+
+function get_resource_version {
+    curl -s --head https://github.com/"$1"/releases/latest | \
+        grep -i '^location: ' | sed 's/.*tag\///g' | tr -d '\r'
+}
+
+if [[ "$1" == "--gen-fingerprint" ]]
+then
+    (
+        get_resource_version iwalton3/jellyfin-web-jmp
+    ) | tee az-cache-fingerprint.list
+    exit 0
+fi
+
+# Download web client
+update_web_client="no"
+mkdir -p build
+if [[ ! -e "build/dist" ]]
+then
+    update_web_client="yes"
+elif [[ -e ".last_wc_version" ]]
+then
+    if [[ "$(get_resource_version iwalton3/jellyfin-web-jmp)" != "$(cat .last_wc_version)" ]]
+    then
+        update_web_client="yes"
+    fi
+fi
+
+if [[ "$update_web_client" == "yes" ]]
+then
+    echo "Downloading web client..."
+    wc_version=$(get_resource_version iwalton3/jellyfin-web-jmp)
+    download_compat dist.zip "https://github.com/iwalton3/jellyfin-web-jmp/releases/download/$wc_version/dist.zip" "wc"
+    rm -r build/dist 2> /dev/null
+    rm -r dist 2> /dev/null
+    unzip dist.zip > /dev/null && rm dist.zip
+    mv dist build/
+    echo "$wc_version" > .last_wc_version
+fi
+