Implement -no-cache for dex decoding

Author: REAndroid

src/main/java/com/reandroid/apkeditor/decompile/DecompileOptions.java

@@ -66,6 +66,9 @@ public class DecompileOptions extends OptionsWithFramework {
     @OptionArg(name = "-dex", flag = true, description = "raw_dex")
     public boolean dex;
 
+    @OptionArg(name = "-no-cache", description = "decode_no_cache", flag = true)
+    public boolean noCache;
+
     @OptionArg(name = "-no-dex-debug", flag = true, description = "no_dex_debug")
     public boolean noDexDebug;
 

src/main/java/com/reandroid/apkeditor/smali/SmaliDecompiler.java

@@ -97,9 +97,11 @@ public void decodeDex(ApkModule apkModule, File mainDirectory) throws IOExceptio
         setting.clearMethodComments();
         directory.close();
 
-        List<DexFileInputSource> dexList = apkModule.listDexFiles();
-        for (DexFileInputSource inputSource : dexList) {
-            writeDexCache(inputSource, mainDirectory);
+        if (!decompileOptions.noCache) {
+            List<DexFileInputSource> dexList = apkModule.listDexFiles();
+            for (DexFileInputSource inputSource : dexList) {
+                writeDexCache(inputSource, mainDirectory);
+            }
         }
     }
 
@@ -137,9 +139,11 @@ private void disassembleWithInternalDexLib(DexFileInputSource inputSource, File
         dexFile.close();
     }
     private void writeDexCache(DexFileInputSource inputSource, File mainDir) throws IOException {
-        File cache = new File(mainDir, SmaliUtil.CACHE_DIR);
-        cache = new File(cache, inputSource.getAlias());
-        inputSource.write(cache);
+        if (!decompileOptions.noCache) {
+            File cache = new File(mainDir, SmaliUtil.CACHE_DIR);
+            cache = new File(cache, inputSource.getAlias());
+            inputSource.write(cache);
+        }
     }
     private File toOutDir(DexFileInputSource inputSource, File mainDir) {
         String name = "classes";

src/main/resources/strings/strings.properties

@@ -42,6 +42,7 @@ decode_example_2=[Specify output]\njava -jar APKEditor.jar d -i path/input.apk -
 decode_example_3=[Specify decode type]\njava -jar APKEditor.jar d -t xml -i path/input.apk
 decode_example_4=[Specify framework file(s)]\njava -jar APKEditor.jar d -i path/input.apk -framework framework-res.apk -framework platforms/android-32/android.jar
 decode_example_5=[Decode apk signature block]\njava -jar APKEditor.jar d -t sig -i path/input.apk -sig path/signatures_dir
+decode_no_cache=Do not create dex .cache files.
 decode_load_dex=Number of dex files to load at a time.\nIf the apk dex files count greater than this value, then the decoder loads one dex at a time.\n  *Applies only when -dex-lib set to internal.\n  *Default = 3\n  *See<Notes> below.
 decode_note_1=[internal] Dex builder\:\n* Fully supports dex files up to 042.\n* Highest dex file compression.\n* Builds with similar dex-section order as r8/dx.\n* Convenient dex markers editing, see file smali/classes/dex-file.json \n* Additional helpful smali comments: e.g class/method hierarchy.\n* Supports whitespaces on class simple name as introduced on dex 040+
 decode_note_2=[-load-dex] To print correct class/method hierarchy, it is necessary to load all dex files at once. This may result high memory consumption and could fail with "OutOfMemoryError" thus you are required to limit the number of dex files to load at a time. You can overcome this problem with -Xmx memory arg e.g java -Xmx8g -jar APKEditor.jar ...