82393: Fix template instantiation in ADT

First, implement a couple of new freemarker methods required by the
templates. Second, switch the manifest merger over to the new
Manifest merger.

Change-Id: I26200d0a861ebddd4c4c92ebbba418ccb88fcb20
(cherry picked from commit d7d481fa5e19353d1636f4df8b9bf875539bbc81)

4 files changed, 169 insertions, 3 deletions

diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/wizards/templates/FmEscapePropertyValueMethod.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/wizards/templates/FmEscapePropertyValueMethod.java
new file mode 100644
index 0000000..c6dc704
--- /dev/null
+++ b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/wizards/templates/FmEscapePropertyValueMethod.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.ide.eclipse.adt.internal.wizards.templates;
+
+import com.android.utils.SdkUtils;
+import freemarker.template.SimpleScalar;
+import freemarker.template.TemplateMethodModel;
+import freemarker.template.TemplateModel;
+import freemarker.template.TemplateModelException;
+
+import java.io.IOException;
+import java.io.StringWriter;
+import java.util.List;
+import java.util.Properties;
+
+/** Escapes a property value (such that its syntax is valid in a Java properties file */
+public class FmEscapePropertyValueMethod implements TemplateMethodModel {
+  @Override
+  public TemplateModel exec(List args) throws TemplateModelException {
+    if (args.size() != 1) {
+      throw new TemplateModelException("Wrong arguments");
+    }
+
+    // Slow, stupid implementation, but is 100% compatible with Java's property file implementation
+    Properties properties = new Properties();
+    String value = args.get(0).toString();
+    properties.setProperty("k", value); // key doesn't matter
+    StringWriter writer = new StringWriter();
+    String escaped;
+    try {
+      properties.store(writer, null);
+      String s = writer.toString();
+      int end = s.length();
+
+      // Writer inserts trailing newline
+      String lineSeparator = SdkUtils.getLineSeparator();
+      if (s.endsWith(lineSeparator)) {
+        end -= lineSeparator.length();
+      }
+
+      int start = s.indexOf('=');
+      assert start != -1 : s;
+      escaped = s.substring(start + 1, end);
+    }
+    catch (IOException e) {
+      escaped = value; // shouldn't happen; we're not going to disk
+    }
+
+    return new SimpleScalar(escaped);
+  }
+}
diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/wizards/templates/FmExtractLettersMethod.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/wizards/templates/FmExtractLettersMethod.java
index 09fa81c..1f50161 100644
--- a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/wizards/templates/FmExtractLettersMethod.java
+++ b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/wizards/templates/FmExtractLettersMethod.java
@@ -15,13 +15,13 @@
  */
 package com.android.ide.eclipse.adt.internal.wizards.templates;
 
+import java.util.List;
+
 import freemarker.template.SimpleScalar;
 import freemarker.template.TemplateMethodModel;
 import freemarker.template.TemplateModel;
 import freemarker.template.TemplateModelException;
 
-import java.util.List;
-
 /**
  * Method invoked by FreeMarker to extract letters from a string; this will remove
  * any whitespace, punctuation and digits.
diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/wizards/templates/FmHasDependencyMethod.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/wizards/templates/FmHasDependencyMethod.java
new file mode 100644
index 0000000..1618969
--- /dev/null
+++ b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/wizards/templates/FmHasDependencyMethod.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.ide.eclipse.adt.internal.wizards.templates;
+
+import java.util.List;
+import java.util.Map;
+
+import freemarker.template.TemplateBooleanModel;
+import freemarker.template.TemplateMethodModelEx;
+import freemarker.template.TemplateModel;
+import freemarker.template.TemplateModelException;
+
+/**
+ * Method invoked by FreeMarker to check whether a given dependency is available
+ * in this module
+ */
+public class FmHasDependencyMethod implements TemplateMethodModelEx {
+    private final Map<String, Object> myParamMap;
+
+    public FmHasDependencyMethod(Map<String, Object> paramMap) {
+        myParamMap = paramMap;
+    }
+
+    @Override
+    public TemplateModel exec(List args) throws TemplateModelException {
+        if (args.size() != 1) {
+            throw new TemplateModelException("Wrong arguments");
+        }
+
+        // TODO: Try to figure out if the project has appcompat etc
+        // com.android.support:appcompat-v7
+
+        // Not yet implemented
+        return TemplateBooleanModel.FALSE;
+    }
+}
\ No newline at end of file
diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/wizards/templates/TemplateHandler.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/wizards/templates/TemplateHandler.java
index 8e11841..569e017 100644
--- a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/wizards/templates/TemplateHandler.java
+++ b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/wizards/templates/TemplateHandler.java
@@ -43,9 +43,15 @@ import com.android.ide.eclipse.adt.internal.editors.layout.gle2.DomUtilities;
 import com.android.ide.eclipse.adt.internal.project.BaseProjectHelper;
 import com.android.ide.eclipse.adt.internal.sdk.AdtManifestMergeCallback;
 import com.android.manifmerger.ManifestMerger;
+import com.android.manifmerger.ManifestMerger2;
+import com.android.manifmerger.ManifestMerger2.Invoker.Feature;
+import com.android.manifmerger.ManifestMerger2.MergeType;
 import com.android.manifmerger.MergerLog;
+import com.android.manifmerger.MergingReport;
+import com.android.manifmerger.XmlDocument;
 import com.android.resources.ResourceFolderType;
 import com.android.utils.SdkUtils;
+import com.android.utils.StdLogger;
 import com.google.common.base.Charsets;
 import com.google.common.collect.Lists;
 import com.google.common.io.Files;
@@ -351,7 +357,9 @@ class TemplateHandler {
         paramMap.put("escapeXmlAttribute", new FmEscapeXmlStringMethod());          //$NON-NLS-1$
         paramMap.put("escapeXmlText", new FmEscapeXmlStringMethod());               //$NON-NLS-1$
         paramMap.put("escapeXmlString", new FmEscapeXmlStringMethod());             //$NON-NLS-1$
+        paramMap.put("escapePropertyValue", new FmEscapePropertyValueMethod());     //$NON-NLS-1$
         paramMap.put("extractLetters", new FmExtractLettersMethod());               //$NON-NLS-1$
+        paramMap.put("hasDependency", new FmHasDependencyMethod(paramMap));         //$NON-NLS-1$
 
         // This should be handled better: perhaps declared "required packages" as part of the
         // inputs? (It would be better if we could conditionally disable template based
@@ -757,7 +765,17 @@ class TemplateHandler {
         boolean ok;
         String fileName = to.getName();
         if (fileName.equals(SdkConstants.FN_ANDROID_MANIFEST_XML)) {
-            modified = ok = mergeManifest(currentDocument, fragment);
+            if (Boolean.getBoolean("adt.use_old_manifest_merger")) {
+                modified = ok = mergeManifest(currentDocument, fragment);
+            } else {
+                XmlDocument doc = mergeManifest(currentXml, xml);
+                if (doc != null) {
+                    currentDocument = doc.getXml();
+                    ok = modified = true;
+                } else {
+                    ok = modified = false;
+                }
+            }
         } else {
             // Merge plain XML files
             String parentFolderName = to.getParent().getName();
@@ -924,6 +942,41 @@ class TemplateHandler {
                 merger.process(currentManifest, fragment);
     }
 
+    /** Merges the given manifest fragment into the given manifest file */
+    @Nullable
+    private static XmlDocument mergeManifest(@NonNull String currentText, @NonNull String mergeText) {
+        File mergeFile = null;
+        File currentFile = null;
+        try {
+            mergeFile = File.createTempFile("manifmerge", DOT_XML);
+            currentFile = File.createTempFile("main", DOT_XML);
+            Files.write(currentText, currentFile, Charsets.UTF_8);
+            Files.write(mergeText, mergeFile, Charsets.UTF_8);
+            StdLogger logger = new StdLogger(StdLogger.Level.INFO);
+            ManifestMerger2.Invoker merger = ManifestMerger2
+                    .newMerger(currentFile, logger, MergeType.APPLICATION)
+                    .withFeatures(Feature.EXTRACT_FQCNS)
+                    .addLibraryManifest(mergeFile);
+            MergingReport mergeReport = merger.merge();
+            if (mergeReport.getMergedDocument().isPresent()) {
+                return mergeReport.getMergedDocument().get();
+            }
+            return null;
+        } catch (IOException e) {
+            AdtPlugin.log(e, null);
+        } catch (ManifestMerger2.MergeFailureException e) {
+            AdtPlugin.log(e, null);
+        } finally {
+            if (mergeFile != null) {
+                mergeFile.delete();
+            }
+            if (currentFile != null) {
+                currentFile.delete();
+            }
+        }
+        return null;
+    }
+
     /**
      * Makes a backup of the given file, if it exists, by renaming it to name~
      * (and removing an old name~ file if it exists)