add local build script

Author: KOWX712

.gitignore

@@ -1,4 +1,5 @@
 /webui/node_modules
 /module/webroot
 /module/bin
+/out
 *.zip

build.sh

@@ -0,0 +1,47 @@
+#!/bin/bash
+
+if [[ $1 == "clean" ]]; then
+    rm -rf out module/bin module/webroot
+    exit 0
+fi
+
+mkdir -p out module/bin module/webroot
+
+# Build WebUI
+cd webui
+npm run build || npm install && npm run build
+cd ..
+
+download_bin() {
+    local suffix="$1"
+    local target="$2"
+    local url=$(echo "$RELEASE_JSON" | jq -r ".assets[] | select(.name | endswith(\"$suffix\")) | .browser_download_url")
+    
+    echo "Downloading $target from $url"
+    curl -L "$url" -o "module/bin/$target"
+}
+
+# Fetch KPatch-Next binaries
+if [[ ! -f "module/bin/kpatch" || ! -f "module/bin/kpimg" || ! -f "module/bin/kptools" ]]; then
+    URL="https://api.github.com/repos/KernelSU-Next/KPatch-Next/releases"
+    RELEASE_JSON=$(curl -s "$URL" | jq '.[0]')
+
+    download_bin "kpatch-android" "kpatch"
+    download_bin "kpimg-linux" "kpimg"
+    download_bin "kptools-android" "kptools"
+fi
+
+# Fetch magiskboot
+if [[ ! -f "module/bin/magiskboot" ]]; then
+    URL="https://api.github.com/repos/topjohnwu/Magisk/releases"
+    RELEASE_JSON=$(curl -s "$URL" | jq '.[0]')
+    download_bin "Magisk*.apk" "magiskboot"
+fi
+
+# zip module
+commit_number=$(git rev-list --count HEAD)
+commit_hash=$(git rev-parse --short HEAD)
+
+cd module
+zip -r ../out/KPatch-Next-${commit_number}-${commit_hash}.zip .
+cd ..