[firebase_core] set user agent (firebase#1582)

* Send Android user agent to Firebase

.cirrus.yml

@@ -10,6 +10,8 @@ task:
     - git fetch origin master
   activate_script: pub global activate flutter_plugin_tools
   matrix:
+    - name: hard_coded_version
+      script: ./script/check_hard_coded_version.sh
     - name: publishable
       script: ./script/check_publish.sh
     - name: test+format

packages/firebase_core/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.4.0+1
+
+* Send user agent to Firebase.
+
 ## 0.4.0
 
 * Update Android dependencies to latest.

packages/firebase_core/android/build.gradle

@@ -46,5 +46,6 @@ android {
     }
     dependencies {
         api 'com.google.firebase:firebase-core:16.0.9'
+        implementation 'com.google.firebase:firebase-common:16.1.0'
     }
 }

packages/firebase_core/android/src/main/AndroidManifest.xml

@@ -1,3 +1,9 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
   package="io.flutter.plugins.firebase.core">
+    <application>
+    <service android:name="com.google.firebase.components.ComponentDiscoveryService">
+        <meta-data android:name="com.google.firebase.components:io.flutter.plugins.firebase.core.FlutterFirebaseAppRegistrar"
+                   android:value="com.google.firebase.components.ComponentRegistrar" />
+    </service>
+    </application>
 </manifest>

packages/firebase_core/android/src/main/java/io/flutter/plugins/firebase/core/FlutterFirebaseAppRegistrar.java

@@ -0,0 +1,18 @@
+package io.flutter.plugins.firebase.core;
+
+import com.google.firebase.components.Component;
+import com.google.firebase.components.ComponentRegistrar;
+import com.google.firebase.platforminfo.LibraryVersionComponent;
+import java.util.Collections;
+import java.util.List;
+
+public class FlutterFirebaseAppRegistrar implements ComponentRegistrar {
+  private static final String LIBRARY_NAME = "flutter-firebase_core";
+  private static final String LIBRARY_VERSION = "0.4.0+1";
+
+  @Override
+  public List<Component<?>> getComponents() {
+    return Collections.<Component<?>>singletonList(
+        LibraryVersionComponent.create(LIBRARY_NAME, LIBRARY_VERSION));
+  }
+}

packages/firebase_core/ios/Classes/FirebaseCorePlugin.m

@@ -6,6 +6,9 @@
 
 #import <Firebase/Firebase.h>
 
+#define LIBRARY_NAME @"flutter-firebase_core"
+#define LIBRARY_VERSION @"0.4.0+1"
+
 static NSDictionary *getDictionaryFromFIROptions(FIROptions *options) {
   if (!options) {
     return nil;
@@ -39,6 +42,11 @@ + (void)registerWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar {
                                   binaryMessenger:[registrar messenger]];
   FLTFirebaseCorePlugin *instance = [[FLTFirebaseCorePlugin alloc] init];
   [registrar addMethodCallDelegate:instance channel:channel];
+
+  SEL sel = NSSelectorFromString(@"registerLibrary:withVersion:");
+  if ([FIRApp respondsToSelector:sel]) {
+    [FIRApp performSelector:sel withObject:LIBRARY_NAME withObject:LIBRARY_VERSION];
+  }
 }
 
 - (void)handleMethodCall:(FlutterMethodCall *)call result:(FlutterResult)result {

packages/firebase_core/pubspec.yaml

@@ -3,7 +3,7 @@ description: Flutter plugin for Firebase Core, enabling connecting to multiple
   Firebase apps.
 author: Flutter Team <[email protected]>
 homepage: https://github.com/flutter/plugins/tree/master/packages/firebase_core
-version: 0.4.0
+version: 0.4.0+1
 
 flutter:
   plugin:

script/check_hard_coded_version.sh

@@ -0,0 +1,48 @@
+#!/bin/bash
+set -e
+
+# This script checks to make sure that if LIBRARY_VERSION is hard coded, it is set
+# to match the version in pubspec.yaml. This allows plugins to report their version
+# for analytics purposes. See https://github.com/flutter/flutter/issues/32267
+
+# So that users can run this script from anywhere and it will work as expected.
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null && pwd)"
+REPO_DIR="$(dirname "$SCRIPT_DIR")"
+
+source "$SCRIPT_DIR/common.sh"
+
+function check_hard_coded_version() {
+  local failures=()
+  for package_name in "$@"; do
+    local dir="$REPO_DIR/packages/$package_name"
+    echo "Checking that $package_name has the correct hard coded version, if any."
+    PACKAGE_VERSION="$(cd "$dir" && cat pubspec.yaml | grep -E "^version: " | awk '{print $2}')"
+    IOS_VERSION="$(cd "$dir" && grep -r "#define LIBRARY_VERSION" ios/Classes/*.m | awk '{print $3}')"
+    ANDROID_VERSION="$(cd "$dir" && grep -r LIBRARY_VERSION android/src/main/java/* | awk '{print $8}')"
+    if [[ "$IOS_VERSION" == 0 && "$ANDROID_VERSION" == 0 ]]; then
+      echo "No hard coded version found"
+    elif [[ "$IOS_VERSION" == "@\"$PACKAGE_VERSION\"" && "$ANDROID_VERSION" == "\"$PACKAGE_VERSION\";" ]]; then
+      echo "Hard coded version matched: $PACKAGE_VERSION"
+    else
+      error "Hard coded version check failed for $package_name"
+      error "pubspec.yaml version: $PACKAGE_VERSION"
+      error "Android version: $ANDROID_VERSION"
+      error "iOS version: $IOS_VERSION"
+      failures=("${failures[@]}" "$package_name")
+    fi
+  done
+  if [[ "${#failures[@]}" != 0 ]]; then
+    error "FAIL: The following ${#failures[@]} package(s) failed the hard coded version check:"
+    for failure in "${failures[@]}"; do
+      error "$failure"
+    done
+  fi
+  return "${#failures[@]}"
+}
+
+# Sets CHANGED_PACKAGE_LIST
+check_changed_packages
+
+if [[ "${#CHANGED_PACKAGE_LIST[@]}" != 0 ]]; then
+  check_hard_coded_version "${CHANGED_PACKAGE_LIST[@]}"
+fi