ensure min sdk 31

README.md

@@ -1,6 +1,6 @@
 # Tricky Store
 
-A trick of keystore.
+A trick of keystore. **Android 12 or above is required**.
 
 ## Usage
 

module/build.gradle.kts

@@ -13,6 +13,7 @@ val verCode: Int by rootProject.extra
 val verName: String by rootProject.extra
 val commitHash: String by rootProject.extra
 val abiList: List<String> by rootProject.extra
+val androidMinSdkVersion: Int by rootProject.extra
 
 val releaseFlags = arrayOf(
     "-Oz", "-flto",
@@ -92,7 +93,8 @@ androidComponents.onVariants { variant ->
                 val tokens = mapOf(
                     "DEBUG" to if (buildTypeLowered == "debug") "true" else "false",
                     "SONAME" to moduleId,
-                    "SUPPORTED_ABIS" to supportedAbis
+                    "SUPPORTED_ABIS" to supportedAbis,
+                    "MIN_SDK" to androidMinSdkVersion.toString()
                 )
                 filter<ReplaceTokens>("tokens" to tokens)
                 filter<FixCrLfFilter>("eol" to FixCrLfFilter.CrLf.newInstance("lf"))

module/template/customize.sh

@@ -4,6 +4,7 @@ SKIPUNZIP=1
 DEBUG=@DEBUG@
 SONAME=@SONAME@
 SUPPORTED_ABIS="@SUPPORTED_ABIS@"
+MIN_SDK=@MIN_SDK@
 
 if [ "$BOOTMODE" ] && [ "$KSU" ]; then
   ui_print "- Installing from KernelSU app"
@@ -40,6 +41,14 @@ else
   ui_print "- Device platform: $ARCH"
 fi
 
+# check android
+if [ "$API" -lt $MIN_SDK ]; then
+  ui_print "! Unsupported sdk: $API"
+  abort "! Minimal supported sdk is $MIN_SDK"
+else
+  ui_print "- Device sdk: $API"
+fi
+
 ui_print "- Extracting verify.sh"
 unzip -o "$ZIPFILE" 'verify.sh' -d "$TMPDIR" >&2
 if [ ! -f "$TMPDIR/verify.sh" ]; then