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.Go Programming Blueprints

You're reading from   .Go Programming Blueprints Build real-world, production-ready solutions in Go using cutting-edge technology and techniques

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Product type Paperback
Published in Oct 2016
Publisher Packt
ISBN-13 9781786468949
Length 394 pages
Edition 2nd Edition
Languages
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Author (1):
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Mat Ryer Mat Ryer
Author Profile Icon Mat Ryer
Mat Ryer
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Toc

Table of Contents (13) Chapters Close

Preface 1. Chat Application with Web Sockets 2. Adding User Accounts FREE CHAPTER 3. Three Ways to Implement Profile Pictures 4. Command-Line Tools to Find Domain Names 5. Building Distributed Systems and Working with Flexible Data 6. Exposing Data and Functionality through a RESTful Data Web Service API 7. Random Recommendations Web Service 8. Filesystem Backup 9. Building a Q&A Application for Google App Engine 10. Micro-services in Go with the Go kit Framework 11. Deploying Go Applications Using Docker Appendix. Good Practices for a Stable Go Environment

The backup package


We are first going to write the backup package, of which we will become the first customer when we write the associated tools. The package will be responsible for deciding whether directories have changed and need backing up or not as well as actually performing the backup procedure.

Considering obvious interfaces first

One of the early things to think about when embarking on a new Go program is whether any interfaces stand out to you. We don't want to over-abstract or waste too much time upfront designing something that we know will change as we start to code, but that doesn't mean we shouldn't look for obvious concepts that are worth pulling out. If you're not sure, that is perfectly acceptable; you should write your code using concrete types and revisit potential abstractions after you have actually solved the problems.

However, since our code will archive files, the Archiver interface pops out as a candidate.

Create a new folder inside your GOPATH/src folderĀ called backup...

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