[perf] create package

packages/perf/.npmignore

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+# Built application files
+android/*/build/
+
+# Crashlytics configuations
+android/com_crashlytics_export_strings.xml
+
+# Local configuration file (sdk path, etc)
+android/local.properties
+
+# Gradle generated files
+android/.gradle/
+
+# Signing files
+android/.signing/
+
+# User-specific configurations
+android/.idea/gradle.xml
+android/.idea/libraries/
+android/.idea/workspace.xml
+android/.idea/tasks.xml
+android/.idea/.name
+android/.idea/compiler.xml
+android/.idea/copyright/profiles_settings.xml
+android/.idea/encodings.xml
+android/.idea/misc.xml
+android/.idea/modules.xml
+android/.idea/scopes/scope_settings.xml
+android/.idea/vcs.xml
+android/*.iml
+
+# Xcode
+*.pbxuser
+*.mode1v3
+*.mode2v3
+*.perspectivev3
+*.xcuserstate
+ios/Pods
+ios/build
+*project.xcworkspace*
+*xcuserdata*
+
+# OS-specific files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.dbandroid/gradle
+android/gradlew
+android/build
+android/gradlew.bat
+android/gradle/
+
+.idea
+coverage
+yarn.lock
+e2e/
+.github
+.vscode
+.nyc_output
+android/.settings
+*.coverage.json
+.circleci
+.eslintignore

packages/perf/LICENSE

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+Apache-2.0 License
+------------------
+
+Copyright (c) 2016-present Invertase Limited <[email protected]> & Contributors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this library except in compliance with the License.
+
+You may obtain a copy of the Apache-2.0 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.
+
+
+Creative Commons Attribution 3.0 License
+----------------------------------------
+
+Copyright (c) 2016-present Invertase Limited <[email protected]> & Contributors
+
+Documentation and other instructional materials provided for this project
+(including on a separate documentation repository or it's documentation website) are
+licensed under the Creative Commons Attribution 3.0 License. Code samples/blocks
+contained therein are licensed under the Apache License, Version 2.0 (the "License"), as above.
+
+You may obtain a copy of the Creative Commons Attribution 3.0 License at
+
+    https://creativecommons.org/licenses/by/3.0/

packages/perf/README.md

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+<p align="center">
+  <a href="https://invertase.io/oss/react-native-firebase">
+    <img width="160px" src="https://i.imgur.com/JIyBtKW.png"><br/>
+  </a>
+  <h4 align="center">React Native Firebase - Perf</h2>
+</p>
+
+<p align="center">
+  <a href="https://www.npmjs.com/package/@react-native-firebase/perf"><img src="https://img.shields.io/npm/dm/@react-native-firebase/perf.svg?style=flat-square" alt="NPM downloads"></a>
+  <a href="https://www.npmjs.com/package/@react-native-firebase/perf"><img src="https://img.shields.io/npm/v/@react-native-firebase/perf.svg?style=flat-square" alt="NPM version"></a>
+  <a href="/LICENSE"><img src="https://img.shields.io/npm/l/react-native-firebase.svg?style=flat-square" alt="License"></a>
+  <a href="#backers"><img src="https://opencollective.com/react-native-firebase/backers/badge.svg?style=flat-square" alt="Backers on Open Collective"></a>
+  <a href="#sponsors"><img src="https://opencollective.com/react-native-firebase/sponsors/badge.svg?style=flat-square" alt="Sponsors on Open Collective"></a>
+  <a href="https://discord.gg/C9aK28N"><img src="https://img.shields.io/discord/295953187817521152.svg?logo=discord&style=flat-square&colorA=7289da&label=discord" alt="Chat"></a>
+  <a href="https://twitter.com/rnfirebase"><img src="https://img.shields.io/twitter/follow/rnfirebase.svg?style=social&label=Follow" alt="Follow on Twitter"></a>
+</p>
+
+----
+
+Perf description.
+
+[> Learn More](https://firebase.google.com/products/perf/)
+
+## Installation
+
+```bash
+yarn add @react-native-firebase/perf
+react-native link @react-native-firebase/perf
+```
+
+## Documentation
+
+ - [Guides](#TODO)
+ - [Installation](#TODO)
+ - [Reference](#TODO)
+
+## License
+
+- See [LICENSE](/LICENSE)
+
+----
+
+Built and maintained with 💛 by [Invertase](https://invertase.io). 
+
+- [💼 Hire Us](https://invertase.io/hire-us)
+- [☕️ Sponsor Us](https://opencollective.com/react-native-firebase)
+- [👩‍💻 Work With Us](https://invertase.io/jobs)

packages/perf/android/build.gradle

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+buildscript {
+  repositories {
+    google()
+    jcenter()
+  }
+  dependencies {
+    classpath 'com.android.tools.build:gradle:3.3.0'
+  }
+}
+
+plugins {
+  id "io.invertase.gradle.build" version "1.3"
+}
+
+project.ext {
+  set('react-native', [
+    versions: [
+      android           : [
+        minSdk    : 16,
+        targetSdk : 28,
+        compileSdk: 28,
+        // optional as gradle.buildTools comes with one by default
+        // overriding here though to match the version RN uses
+        buildTools: "28.0.3"
+      ],
+
+      googlePlayServices: [
+        base: "16.0.1",
+      ],
+
+      firebase          : [
+        perf: "16.0.6"
+      ],
+    ],
+  ])
+}
+
+android {
+  defaultConfig {
+    multiDexEnabled true
+  }
+  lintOptions {
+    disable 'GradleCompatible'
+    abortOnError false
+  }
+  compileOptions {
+    sourceCompatibility JavaVersion.VERSION_1_8
+    targetCompatibility JavaVersion.VERSION_1_8
+  }
+}
+
+repositories {
+  google()
+  jcenter()
+}
+
+dependencies {
+  api project(':@react-native-firebase/app')
+  implementation "com.google.firebase:firebase-perf:${ReactNative.ext.getVersion("firebase", "perf")}"
+  implementation "com.google.android.gms:play-services-base:${ReactNative.ext.getVersion("googlePlayServices", "base")}"
+}
+
+ReactNative.shared.applyPackageVersion()
+ReactNative.shared.applyDefaultExcludes()
+ReactNative.module.applyAndroidVersions()
+ReactNative.module.applyReactNativeDependency("api")

packages/perf/android/gradle/wrapper/gradle-wrapper.properties

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+#Tue Oct 09 01:55:27 BST 2018
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-all.zip

packages/perf/android/gradlew

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+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"