Git is a distributed version control system created in 2005 by Linus Torvalds that allows for easy branching and merging of code changes. GitHub, founded in 2008, is a code hosting platform for Git repositories that added social features like collaboration through pull requests and review comments. GitHub's success is attributed to its responsive and approachable interface as well as its encouragement of open source development through features like social coding and continuous integration.
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1. the best way to build and ship software
How GitHub makes GitHub
a @helaili - @AlainHelaili - ! helaili@github.com
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3. the best way to build and ship software
Git
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• Started by Linus Torvalds 2005 (search “torvalds git” on youtube)
• Easy branching and merging - content oriented, remembers origin
• Small and fast - local operations, smaller repos
• Distributed - VCS on my laptop, full copy incl. history
• Data assurance - sha1, gpg
• Staging area - crafted, meaningful commits
• Free and open source - did you read the first line of this slide?
5. the best way to build and ship software
An ideal patch flow
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“(0) YOU COME UP WITH AN ITCH. YOU CODE IT UP.
(1) SEND IT TO THE LIST AND CC PEOPLE WHO MAY NEED TO KNOW ABOUT THE CHANGE.
(2) YOU GET COMMENTS AND SUGGESTIONS FOR IMPROVEMENTS. YOU MAY EVEN GET THEM IN A "ON
TOP OF YOUR CHANGE" PATCH FORM.
(3) POLISH, REFINE, AND RE-SEND TO THE LIST AND THE PEOPLE WHO SPEND THEIR TIME TO IMPROVE
YOUR PATCH. GO BACK TO STEP (2).
(4) THE LIST FORMS CONSENSUS THAT THE LAST ROUND OF YOUR PATCH IS GOOD. SEND IT TO THE
MAINTAINER AND CC THE LIST.
(5) A TOPIC BRANCH IS CREATED WITH THE PATCH AND IS MERGED TO ‘NEXT', AND COOKED FURTHER
AND EVENTUALLY GRADUATES TO ‘MASTER'.
- HTTPS://GITHUB.COM/GIT/GIT/BLOB/MASTER/DOCUMENTATION/SUBMITTINGPATCHES
8. the best way to build and ship software
GitHub key facts
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FOUNDED
2008
EMPLOYEES
382
UNIVERSITIES
USING GITHUB
1,000+
TOTAL
REGISTERED
USERS
11M
TOTAL
REPOSITORIES
30M
PAYING
ORGANIZATIONS
>60,000
11. the best way to build and ship software
The Zen of GitHub
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• Responsive is better than fast
• It’s not fully shipped until it’s fast
• Anything added dilutes everything else
• Practicality beats purity
• Approachable is better than simple
• Mind your words, they are important
• Speak like a human
• Half measures are as bad as nothing at all
• Encourage flow
• Non-blocking is better than blocking
• Favor focus over features
• Avoid administrative distraction
• Design for failure
• Keep it logically awesome
12. the best way to build and ship software 12
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DEVOPS
CONTINUOUS DELIVERY
The (very shorten) recipe
CHATOPS#
$
%
ASYNCHRONOUS COMMUNICATION&
38. the best way to build and ship software
Resources
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• http://githubengineering.com/runnable-documentation/
• http://githubengineering.com/scripts-to-rule-them-all/
• http://githubengineering.com/exception-monitoring-and-response/
• http://githubengineering.com/deploying-branches-to-github-com/