bazel 是google用于构建项目的工具，主要用于构建google 的软件，如tensorflow等。
最近想要编写android上的tensorflow 项目，使用android studio 要用到bazel ，装好之后记录一下，方便自己和有用到的朋友查看。
但是我新装的ubuntu 18.04，bazel 用apt 安装默认只支持ubuntu14和16，apt install bazel 会显示找不到软件，所以我们只能从github上安装clone源码进行编译安装。
bazel 官方安装说明： https://docs.bazel.build/versions/master/install.html
安装jdk
首先需要安装jdk8以上，这个网站由很多教程，不在赘述，不会可以留言。
安装bazel
bazel源码地址： https://github.com/bazelbuild/bazel/
使用git clone或下载zip方式，下载源码。
打开终端，进入源码的bazel目录，输入./complie.sh命令，会报如下错误：
root@648700565:/home/lihansen/bazel-master# ./compile.sh Building Bazel from scratch ERROR: Must specify PROTOC if not bootstrapping from the distribution artifact -------------------------------------------------------------------------------- NOTE: This failure is likely occuring if you are trying to bootstrap bazel from a developer checkout. Those checkouts do not include the generated output of the protoc compiler (as we prefer not to version generated files). * To build a developer version of bazel, do bazel build //src:bazel * To bootstrap your first bazel binary, please download a dist archive from our release page at https://github.com/bazelbuild/bazel/releases and run compile.sh on the unpacked archive. The full install instructions to install a release version of bazel can be found at https://docs.bazel.build/install-compile-source.html For a rationale, why the bootstrap process is organized in this way, see https://bazel.build/designs/2016/10/11/distribution-artifact.html ------------------------------------------------------------------------------
按照提示进入 https://github.com/bazelbuild/bazel/releases
根据自己的操作系统选择合适的sh文件，我的ubuntu18.04版本选择的是 bazel-0.13.0-installer-linux-x86_64.sh
终端输入命令./bazel-0.13.0-installer-linux-x86_64.sh
(如果提示权限不够，输入命令chmod +x bazel-0.13.0-installer-linux-x86_64.sh)
结果如下：
root@648700565:/home/lihansen/bazel-master# ./bazel-0.13.0-installer-linux-x86_64.sh
Bazel installer
---------------
Bazel is bundled with software licensed under the GPLv2 with Classpath exception.
You can find the sources next to the installer on our release page:
https://github.com/bazelbuild/bazel/releases
# Release 0.13.0 (2018-04-30)
Baseline: fdee70e6e39b74bfd9144b1e350d2d8806386e05
Cherry picks:
+ f083e7623cd03e20ed216117c5ea8c8b4ec61948:
windows: GetOutputRoot() returns GetHomeDir()
+ fa36d2f48965b127e8fd397348d16e991135bfb6:
。。。。。。。。。。。。
- android_binary.manifest_merger is no longer supported.
## Build informations
- [Commit](https://github.com/bazelbuild/bazel/commit/f19d2c1)
Uncompressing.......
Bazel is now installed!
Make sure you have "/usr/local/bin" in your path. You can also activate bash
completion by adding the following line to your :
source /usr/local/lib/bazel/bin/bazel-complete.bash
See http://bazel.build/docs/getting-started.html to start a new project!
表示安装成功，输入bazel 可见到提示信息。