Google 官方 bazel 构建工具的安装

1.概要：

Bazel is an open-source build and test tool similar to Make, Maven, and Gradle. It uses a human-readable, high-level build language. Bazel supports projects in multiple languages and builds outputs for multiple platforms. Bazel supports large codebases across multiple repositories, and large numbers of users.

• High-level build language

• Bazel is fast and reliable

• Bazel is multi-platform

• Bazel scales

• Bazel is extensible

2.安装 bazel Installing Bazel

• 需要注意的是，bazel 支持多个平台，即可在 win、linux、mac 系统运行。也就意味着，bazel、java、android-sdk、gcc 等都要一致平台，才可以顺利使用 bazel 编译工程。

• 在本文中，使用的 bazel 工具是官方编译好的 4.2.0 版本的可执行文件

• 在 win 平台下，bazel、java、android-sdk、gcc 等工具安装好后，编译 bazel-demo 总是会报错，无法正常编译，故猜测 bazel 对 win 平台的存在 兼容性问题

• 故决定，在 linux 平台搭建 bazel 构建工具所需的环境，避免出现各种未知问题

• 曾考虑下载 bazel source 进行编译，结果与上面一致，win 平台编译失败，linux 平台编译正常

3.linux 平台安装 android-sdk

To install it on a Debian based system simply do

# Install latest JDKsudo apt install default-jdk
# install unzip if not installed yetsudo apt install unzip
# get latest sdk tools - link will change. go to https://developer.android.com/studio/#downloads to get the latest onecd ~wget https://dl.google.com/android/repository/sdk-tools-linux-4333796.zip
# unpack archiveunzip sdk-tools-linux-4333796.zip
rm sdk-tools-linux-4333796.zip
mkdir android-sdkmv tools android-sdk/tools

Then add the Android SDK to your PATH, open ~/.bashrc in editor and add the following lines into the file

# Export the Android SDK path export ANDROID_HOME=$HOME/android-sdkexport PATH=$PATH:$ANDROID_HOME/tools/binexport PATH=$PATH:$ANDROID_HOME/platform-tools
# Fixes sdkmanager error with java versions higher than java 8# export JAVA_OPTS='-XX:+IgnoreUnrecognizedVMOptions --add-modules java.se.ee'# 使用java 1.8版本，如果系统支持多个版本，那么使用以下命令切换到1.8版本sudo update-alternatives --config java

Run

source ~/.bashrc

Show all available sdk packages

sdkmanager --list

Identify latest android platform (here it's 28) and run

sdkmanager "platform-tools" "platforms;android-28"

Now you have adb, fastboot and the latest sdk tools installed

4.构建一个Android APP

具体可参考，bazel 的官方介绍