January 2023
Intermediate to advanced
458 pages
14h 16m
Chinese
Content preview from 可编程网络自动化
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
233
第 8 章
使用
Git
控制源代码
到目前为止，本书已经展示了多种实现自动化的方法，无论是通过脚本语言（如
Python
，
参见第
4
章）还是通过模板语言
（如
Jinja
，参见第
6
章）。随着基于
Python
的脚本或
Jinja
模板的使用日益增多，管理这些制品（
artifact
，
“制品”是指组成这些脚本、模板以及所
使用的其他自动化工具的文件）变得非常重要。特别是，管理制品的
变更
具有重要价值
（稍后会解释原因）。
本章将展示
源代码控制
工具的用法，这种工具旨在管理网络自动化过程中所创建及使用的
制品。源代码控制功能能够帮助你远离诸如向文件名末尾添加日期和时间戳这种既混乱又
易错的做法，避免误删或覆盖文件。
先来仔细了解一下源代码控制的概念。我们目前会保持讨论内容足够通用，本章后续部
分将深入研究具体的源代码控制工具
Git
。接下来的讨论不针对任何特定的源代码控制
工具。
8.1
源代码控制用例
简而言之，
源代码控制
是跟踪文件及其随时间所发生变更的一种方法（源代码控制又称
版
本控制
或
修订控制
）。可以看出，这种描述非常宽泛，下面来看一些具体用例。
•
如果你是一名开发人员，负责为大型软件开发项目编写部分代码，那么可以使用源代码
控制工具跟踪所编写的代码。这可能是最为人所知的用例，也是大多数人在提及源代码
控制概念时立刻会想到的。
•
如果你是网络设备管理团队的一员，那么可以使用源代码控制工具跟踪设备配置文件。
•
如果你负责维护所在组织部分信息技术（
IT
）基础架构的文档
，那么这些文档也可以使
用源代码控制工具跟踪。
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.