Add a flag (-G) to aapt to have it output the classes that shouldn't be obfuscated by ProGuard.
diff --git a/tools/aapt/Resource.cpp b/tools/aapt/Resource.cpp
index e8410cd..be05818 100644
--- a/tools/aapt/Resource.cpp
+++ b/tools/aapt/Resource.cpp
@@ -1630,3 +1630,230 @@
return NO_ERROR;
}
+
+
+
+class ProguardKeepSet
+{
+public:
+ // { rule --> { file locations } }
+ KeyedVector<String8, SortedVector<String8> > rules;
+
+ void add(const String8& rule, const String8& where);
+};
+
+void ProguardKeepSet::add(const String8& rule, const String8& where)
+{
+ ssize_t index = rules.indexOfKey(rule);
+ if (index < 0) {
+ index = rules.add(rule, SortedVector<String8>());
+ }
+ rules.editValueAt(index).add(where);
+}
+
+status_t
+writeProguardForAndroidManifest(ProguardKeepSet* keep, const sp<AaptAssets>& assets)
+{
+ status_t err;
+ ResXMLTree tree;
+ size_t len;
+ ResXMLTree::event_code_t code;
+ int depth = 0;
+ bool inApplication = false;
+ String8 error;
+ sp<AaptGroup> assGroup;
+ sp<AaptFile> assFile;
+ String8 pkg;
+
+ // First, look for a package file to parse. This is required to
+ // be able to generate the resource information.
+ assGroup = assets->getFiles().valueFor(String8("AndroidManifest.xml"));
+ if (assGroup == NULL) {
+ fprintf(stderr, "ERROR: No AndroidManifest.xml file found.\n");
+ return -1;
+ }
+
+ if (assGroup->getFiles().size() != 1) {
+ fprintf(stderr, "warning: Multiple AndroidManifest.xml files found, using %s\n",
+ assGroup->getFiles().valueAt(0)->getPrintableSource().string());
+ }
+
+ assFile = assGroup->getFiles().valueAt(0);
+
+ err = parseXMLResource(assFile, &tree);
+ if (err != NO_ERROR) {
+ return err;
+ }
+
+ tree.restart();
+
+ while ((code=tree.next()) != ResXMLTree::END_DOCUMENT && code != ResXMLTree::BAD_DOCUMENT) {
+ if (code == ResXMLTree::END_TAG) {
+ if (/* name == "Application" && */ depth == 2) {
+ inApplication = false;
+ }
+ depth--;
+ continue;
+ }
+ if (code != ResXMLTree::START_TAG) {
+ continue;
+ }
+ depth++;
+ String8 tag(tree.getElementName(&len));
+ // printf("Depth %d tag %s\n", depth, tag.string());
+ if (depth == 1) {
+ if (tag != "manifest") {
+ fprintf(stderr, "ERROR: manifest does not start with <manifest> tag\n");
+ return -1;
+ }
+ pkg = getAttribute(tree, NULL, "package", NULL);
+ } else if (depth == 2 && tag == "application") {
+ inApplication = true;
+ }
+ if (depth == 3 && inApplication) {
+ if (tag == "application" || tag == "activity" || tag == "service" || tag == "receiver"
+ || tag == "provider") {
+ String8 name = getAttribute(tree, "http://schemas.android.com/apk/res/android",
+ "name", &error);
+ if (error != "") {
+ fprintf(stderr, "ERROR: %s\n", error.string());
+ return -1;
+ }
+ // asdf --> package.asdf
+ // .asdf .a.b --> package.asdf package.a.b
+ // asdf.adsf --> asdf.asdf
+ String8 rule("-keep class ");
+ const char* p = name.string();
+ const char* q = strchr(p, '.');
+ if (p == q) {
+ rule += pkg;
+ rule += name;
+ } else if (q == NULL) {
+ rule += pkg;
+ rule += ".";
+ rule += name;
+ } else {
+ rule += name;
+ }
+
+ String8 location = tag;
+ location += " ";
+ location += assFile->getSourceFile();
+ char lineno[20];
+ sprintf(lineno, ":%d", tree.getLineNumber());
+ location += lineno;
+
+ keep->add(rule, location);
+ }
+ }
+ }
+
+ return NO_ERROR;
+}
+
+status_t
+writeProguardForLayout(ProguardKeepSet* keep, const sp<AaptFile>& layoutFile)
+{
+ status_t err;
+ ResXMLTree tree;
+ size_t len;
+ ResXMLTree::event_code_t code;
+
+ err = parseXMLResource(layoutFile, &tree);
+ if (err != NO_ERROR) {
+ return err;
+ }
+
+ tree.restart();
+
+ while ((code=tree.next()) != ResXMLTree::END_DOCUMENT && code != ResXMLTree::BAD_DOCUMENT) {
+ if (code != ResXMLTree::START_TAG) {
+ continue;
+ }
+ String8 tag(tree.getElementName(&len));
+
+ // If there is no '.', we'll assume that it's one of the built in names.
+ if (strchr(tag.string(), '.')) {
+ String8 rule("-keep class ");
+ rule += tag;
+ rule += " { <init>(...); }";
+
+ String8 location("view ");
+ location += layoutFile->getSourceFile();
+ char lineno[20];
+ sprintf(lineno, ":%d", tree.getLineNumber());
+ location += lineno;
+
+ keep->add(rule, location);
+ }
+ }
+
+ return NO_ERROR;
+}
+
+status_t
+writeProguardForLayouts(ProguardKeepSet* keep, const sp<AaptAssets>& assets)
+{
+ status_t err;
+ sp<AaptDir> layout = assets->resDir(String8("layout"));
+
+ if (layout != NULL) {
+ const KeyedVector<String8,sp<AaptGroup> > groups = layout->getFiles();
+ const size_t N = groups.size();
+ for (size_t i=0; i<N; i++) {
+ const sp<AaptGroup>& group = groups.valueAt(i);
+ const DefaultKeyedVector<AaptGroupEntry, sp<AaptFile> >& files = group->getFiles();
+ const size_t M = files.size();
+ for (size_t j=0; j<M; j++) {
+ err = writeProguardForLayout(keep, files.valueAt(j));
+ if (err < 0) {
+ return err;
+ }
+ }
+ }
+ }
+ return NO_ERROR;
+}
+
+status_t
+writeProguardFile(Bundle* bundle, const sp<AaptAssets>& assets)
+{
+ status_t err = -1;
+
+ if (!bundle->getProguardFile()) {
+ return NO_ERROR;
+ }
+
+ ProguardKeepSet keep;
+
+ err = writeProguardForAndroidManifest(&keep, assets);
+ if (err < 0) {
+ return err;
+ }
+
+ err = writeProguardForLayouts(&keep, assets);
+ if (err < 0) {
+ return err;
+ }
+
+ FILE* fp = fopen(bundle->getProguardFile(), "w+");
+ if (fp == NULL) {
+ fprintf(stderr, "ERROR: Unable to open class file %s: %s\n",
+ bundle->getProguardFile(), strerror(errno));
+ return UNKNOWN_ERROR;
+ }
+
+ const KeyedVector<String8, SortedVector<String8> >& rules = keep.rules;
+ const size_t N = rules.size();
+ for (size_t i=0; i<N; i++) {
+ const SortedVector<String8>& locations = rules.valueAt(i);
+ const size_t M = locations.size();
+ for (size_t j=0; j<M; j++) {
+ fprintf(fp, "# %s\n", locations.itemAt(j).string());
+ }
+ fprintf(fp, "%s\n\n", rules.keyAt(i).string());
+ }
+ fclose(fp);
+
+ return err;
+}