Add flags primary_bundle_id and fallback_bundle_id to PlMerge to set …

…bundle identifiers. Also allow users to use bundle identifiers specified in BUILD files via "bundle_id" attribute on objc bundling rules to override the ones from plist files.

RELNOTES: bundle_id attribute on objc_* rules now overrides plist bundle id".

--
MOS_MIGRATED_REVID=92247814

src/objc_tools/plmerge/java/com/google/devtools/build/xcode/plmerge/PlMerge.java

@@ -53,6 +53,21 @@ public static class PlMergeOptions extends OptionsBase {
         help = "Path to the output file. Required.",
         defaultValue = "null")
     public String outFile;
+
+    @Option(
+        name = "primary_bundle_id",
+        help = "A reverse-DNS string identifier for this bundle associated with output binary "
+            + "plist. This flag overrides the bundle id specified in field CFBundleIdentifier in "
+            + "the associated plist file.",
+        defaultValue = "null")
+    public String primaryBundleId;
+
+    @Option(
+        name = "fallback_bundle_id",
+        help = "A fallback reverse-DNS string identifier for this bundle when the bundle "
+            + "identifier is not specified in flag primary_bundle_id or associated plist file",
+        defaultValue = "null")
+    public String fallbackBundleId;
   }
 
   public static void main(String[] args) throws IOException, OptionsParsingException {
@@ -74,6 +89,7 @@ public static void main(String[] args) throws IOException, OptionsParsingExcepti
 
     PlistMerging merging = PlistMerging.from(sourceFilePaths, ImmutableMap.<String, NSObject>of(),
         ImmutableMap.<String, String>of(), new KeysToRemoveIfEmptyString());
+    merging.setBundleIdentifier(options.primaryBundleId, options.fallbackBundleId);
     merging.writePlist(fileSystem.getPath(options.outFile));
   }
 

src/objc_tools/plmerge/java/com/google/devtools/build/xcode/plmerge/PlistMerging.java

@@ -263,28 +263,21 @@ public PlistMerging setExecutableName(String executableName) {
    * Sets the given identifier on this merged plist in the {@code CFBundleIdentifier}
    * attribute.
    *
-   * @param primaryIdentifier used if the bundle doesn't have an identifier already, can be null
-   * @param fallbackIdentifier used if neither bundle, nor primary identifier is set, can be null
+   * @param primaryIdentifier used to set the bundle identifier or override the existing one from
+   *     plist file, can be null
+   * @param fallbackIdentifier used to set the bundle identifier if it is not set by plist file or
+   *     primary identifier, can be null
    * @return this plist merging
-   * @throws ValidationException if both plist and control contain bundle identifiers and they
-   *     don't match
    */
   public PlistMerging setBundleIdentifier(String primaryIdentifier, String fallbackIdentifier) {
     NSString bundleIdentifier = (NSString) merged.get(BUNDLE_IDENTIFIER_PLIST_KEY);
 
-    if (bundleIdentifier == null) {
-      if (primaryIdentifier != null) {
-        merged.put(BUNDLE_IDENTIFIER_PLIST_KEY, primaryIdentifier);
-      } else if (fallbackIdentifier != null) {
-        merged.put(BUNDLE_IDENTIFIER_PLIST_KEY, fallbackIdentifier);
-      }
-    } else if (primaryIdentifier != null 
-        && !primaryIdentifier.equals(bundleIdentifier.getContent())) {
-      throw new ValidationException(String.format(
-          "Blaze generated bundle_id is %s but the Plist %s is %s",
-          primaryIdentifier, BUNDLE_IDENTIFIER_PLIST_KEY, bundleIdentifier));
+    if (primaryIdentifier != null) {
+      merged.put(BUNDLE_IDENTIFIER_PLIST_KEY, primaryIdentifier);
+    } else if (bundleIdentifier == null && fallbackIdentifier != null) {
+      merged.put(BUNDLE_IDENTIFIER_PLIST_KEY, fallbackIdentifier);
     }
-    
+
     return this;
   }