February 2010
Beginner
255 pages
6h 10m
English
Content preview from 97 Things Every Programmer Should Know
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Chapter 68. Put Everything Under Version Control
PUT EVERYTHING IN ALL YOUR PROJECTS UNDER VERSION CONTROL. The resources you need are there: free tools like Subversion, Git, Mercurial, and CVS; plentiful disk space; cheap and powerful servers; ubiquitous networking; and even project-hosting services. After you’ve installed the version control software, all you need in order to put your work in its repository is to issue the appropriate command in a clean directory containing your code. And there are just two new basic operations to learn: you commit your code changes to the repository and you update your working version of the project with the repository’s version.
Once your project is under version control, you can obviously track its history, see who wrote what code, and refer to a file or project version through a unique identifier. More importantly, you can make bold code changes without fear—no more commented-out code just in case you need it in the future, because the old version lives safely in the repository. You can (and should) tag a software release with a symbolic name so that you can easily revisit in the future the exact version of the software your customer runs. You can create branches of parallel development: most projects have an active development branch and one or more maintenance branches for released versions that are actively supported.
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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.
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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.