MSR 2020
Mon 29 - Tue 30 June 2020
co-located with ICSE 2020
Tue 30 Jun 2020 10:30 - 10:37 at MSR:Zoom - Evolution Chair(s): Jürgen Cito

Feature flags (a.k.a feature toggles) are a mechanism to keep new features hidden behind a boolean option during development. Flags are used for many purposes, such as A/B testing and turning off a feature more easily in case of failures. While software engineering feature flags research is burgeoning, examples of software projects using flags rarely come from outside commercial and private projects, stifling academic progress. To address this gap, in this paper we present a novel mining software repositories approach to detect feature flagging open-source projects, based on analyzing the projects’ commit messages. We apply our approach to all open-source GitHub projects, identifying 231,223 candidate feature flagging projects, and manually validating 100. We also report on an initial analysis of feature flags in the validated sample of 100 projects, investigating practices that correlate with shorter flag lifespans (typically desirable to reduce technical debt), such as using the issue tracker and having the flag owner (the developer introducing a flag) also be the one removing it.

Tue 30 Jun
Times are displayed in time zone: (UTC) Coordinated Universal Time change

10:30 - 11:00: Technical Papers - Evolution at MSR:Zoom
Chair(s): Jürgen CitoMIT

Q/A & Discussion of Session Papers over Zoom (Joining info available on Slack)

msr-2020-papers10:30 - 10:37
Live Q&A
Jens MeinickeCarnegie Mellon University, Juan HoyosUniversidad Nacional de Colombia, Bogdan VasilescuCarnegie Mellon University, Christian KästnerCarnegie Mellon University
Pre-print Media Attached
msr-2020-papers10:37 - 10:45
Live Q&A
Antoine PietriInria, Guillaume RousseauUniversité de Paris and Inria, Stefano ZacchiroliUniversité de Paris and Inria
Pre-print Media Attached
msr-2020-papers10:45 - 10:52
Live Q&A
Sergey Svitkov, Timofey BryksinJetBrains Research, Saint Petersburg State University
Pre-print Media Attached
msr-2020-Data-showcase10:52 - 11:00
Live Q&A
Themistoklis DiamantopoulosElectrical and Computer Engineering Dept, Aristotle University of Thessaloniki, Michail Papamichail , Thomas Karanikiotis, Kyriakos Chatzidimitriou Aristotle University of Thessaloniki, Andreas SymeonidisAristotle University of Thessaloniki
Pre-print Media Attached