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How Does Contributors' Involvement Influence th...
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Gustavo Pinto
January 14, 2018
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How Does Contributors' Involvement Influence the Build Status of an Open-Source Software Project?
Gustavo Pinto
January 14, 2018
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Transcript
Marcel Rebouças How Does Contributors’ Involvement Influence the Build Status
of an Open-Source Software Project? Renato Olivera Gustavo Pinto Fernando Castor
[email protected]
[email protected]
[email protected]
[email protected]
Motivation (1/3) Casual contributors represent a large part of the
OSS community (49%) and their contributions are far from trivial.
Motivation (2/3) Only 20% of the new contributors on OSS
projects become long-term members.
Motivation (3/3) Lack of awareness and guidance during their first
steps makes it hard to contribute!
They have little or no prior knowledge on the project
domain Casual Contributors They might put more effort to create their first pull- request
Are casual contributors more prone to create a failing build?
Research Question
Methodology TravisTorrent TravisCI CI Build Data Commiter Data Dataset Dataset
without duplicated users User Disambiguation Technique Data Cleaning Dataset with 1,074 curated projects Data Processing Data Statistical Tests
Data Overview 1,074 projects 35,360 users 619,370 builds
Data Overview # Users 0 5000 10000 15000 20000 Builds
1 2 3 4 5+ 0 150000 300000 450000 600000 Casual Non-Casual 1,074 projects 35,360 users 619,370 builds # Builds
Results 0 250 500 750 1000 No difference Higher Casual
Success Lower Casual Success Being a casual contributor is not a strong indicator for creating failing builds # Number of Projects
0 22.5 45 67.5 90 0 1.15 2.3 3.45 4.6
Results Casual contributions are smaller, both in modified source-code lines and modified files Median of Modified LoC Median of Modified Files
0 1.15 2.3 3.45 4.6 No difference Higher Casual Success
Lower Casual Success Results Projects in which casuals fail more than non-casuals run more jobs per build. Median of jobs per build
Take-Away Message Are you a casual contributor?
Take-Away Message Are you a casual contributor? Go ahead and
contribute!
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[email protected]
@gustavopinto