Fix Java Merge

2026-06-18 05:23:12 +10:00 · 2026-05-20 22:55:32 +10:00
parent 38c75f9908
commit d6bc75604c
3 changed files with 74 additions and 15 deletions
@@ -0,0 +1,61 @@
+import java.io.*;
+import java.util.*;
+import java.util.zip.*;
+
+// Merges an APKMirror split-APK bundle into a single installable APK.
+// Usage: java MergeApk out.apk base.apk split1.apk split2.apk ...
+public class MergeApk {
+    public static void main(String[] args) throws Exception {
+        if (args.length < 2) {
+            System.err.println("Usage: java MergeApk out.apk base.apk [split.apk ...]");
+            System.exit(1);
+        }
+        String out = args[0];
+        Set<String> seen = new HashSet<>();
+        try (ZipOutputStream zos = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(out)))) {
+            for (int i = 1; i < args.length; i++) {
+                String src = args[i];
+                boolean isBase = i == 1;
+                int added = 0, skipped = 0;
+                try (ZipFile zip = new ZipFile(src)) {
+                    Enumeration<? extends ZipEntry> entries = zip.entries();
+                    while (entries.hasMoreElements()) {
+                        ZipEntry e = entries.nextElement();
+                        if (e.isDirectory()) { skipped++; continue; }
+                        String name = e.getName();
+                        if (!isBase && (
+                                name.equals("AndroidManifest.xml") ||
+                                name.equals("resources.arsc") ||
+                                name.startsWith("META-INF/") ||
+                                name.equals("stamp-cert-sha256"))) {
+                            skipped++;
+                            continue;
+                        }
+                        if (seen.contains(name)) { skipped++; continue; }
+                        seen.add(name);
+
+                        ZipEntry ne = new ZipEntry(name);
+                        if (e.getMethod() == ZipEntry.STORED) {
+                            ne.setMethod(ZipEntry.STORED);
+                            ne.setSize(e.getSize());
+                            ne.setCompressedSize(e.getSize());
+                            ne.setCrc(e.getCrc());
+                        } else {
+                            ne.setMethod(ZipEntry.DEFLATED);
+                        }
+                        zos.putNextEntry(ne);
+                        try (InputStream is = zip.getInputStream(e)) {
+                            byte[] buf = new byte[16384];
+                            int n;
+                            while ((n = is.read(buf)) > 0) zos.write(buf, 0, n);
+                        }
+                        zos.closeEntry();
+                        added++;
+                    }
+                }
+                System.out.printf("%s: +%d added, %d skipped%n", src, added, skipped);
+            }
+        }
+        System.out.printf("Wrote %d entries to %s%n", seen.size(), out);
+    }
+}