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Striking Gold: Building software better, together
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Brian Doll
May 19, 2013
Technology
3
500
Striking Gold: Building software better, together
Mining Software Repositories Conference Keynote
Brian Doll
May 19, 2013
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Transcript
Building Software Better, Together Brian Doll @briandoll Striking Gold!
California Gold Rush
Gold Ru Technology Gold Rush
Every company is a software company
FTP CVS Perforce Subversion Git GitHub ’95 ’99 ’01 ’03
’08 ’08 My personal journey through software repositories...
"organizations which design systems ... are constrained to produce designs
which are copies of the communication structures of these organizations" Conway’s Law:
The GitHub Way
The GitHub Way run your company like an open source
project
collaboration without coordination The GitHub Way
electronic The GitHub Way
available via URL The GitHub Way
asynchronous The GitHub Way
lock free The GitHub Way
The best software is made by happy people working together
Process vs. Vision
Process
Vision
Important to GitHub My Interests My Skills What I work
on
None
issues / features don’t get worked on? What happens when...
a day in the life...
everyone ships, all the time
Chris (new employee): How much is the ideal githubber expected
to ship when operating at full awesomeness?
Chris (new employee): How much is the ideal githubber expected
to ship when operating at full awesomeness? Lee: Whatever makes you feel good, man
The best software is made by happy people working together
GitHub API : developer.github.com GitHub Archive : githubarchive.org GitHub data
on Google BigQuery Questions:
[email protected]
Mining GitHub Data
Team / Discussions •CommitCommentEvent •PullRequestEvent •PullRequestReviewCommentEvent •MemberEvent Development activities •
CreateEvent • DeleteEvent • DownloadEvent • ForkEvent • ForkApplyEvent • GistEvent • GollumEvent • PublicEvent • PushEvent Social activities •FollowEvent •IssueCommentEvent •IssuesEvent •TeamAddEvent •WatchEvent Events on GitHub
Our internal social graph by Derek Greentree, GitHub
Our internal social graph 688 repositories 169 people
Interactions were counted between two users when: • One user
@mentions another in a pull request, issue, or commit comment • A user comments on another's pull request or issue Our internal social graph
None
• 25%: 6 • 50%: 25.5 • 75%: 59.25 Quantiles
Team size at GitHub
GitHub Data Challenge
Source of commits. The more commits come from pull requests,
the more open the project process. Percentage of issue comments and commenters coming from the project community (i.e. users with no commit rights to the main repo) Dr. Georgios Gousios, GHTorrent
Dr. Georgios Gousios, http://ghtorrent.org/netviz/
Huang Liang, Programming Language Activity Trends
JeongHoon Byun , http://sideeffect.kr/popularconvention
bbaudry/GitWorks
Eduarda Mendes Rodrigues, http://zoom.it/kCsU#full
Matthew Willson, mjwillson/ProgLangVisualise
None
Jean-Noël Avila, fork to pull request latency
Geeksta, http://bit.ly/geeksta : Anger in commit messages
Geeksta, http://bit.ly/geeksta : joy in commit messages
None
Software is eating the world. Let’s eat it faster!