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Microsoft and Open Source
a ‘brave new world’
www.mattwarren.org
@matthewwarren
Microsoft MVP 2017 - ??
Microsoft and Open Source
a ‘brave new world’
What happened when Microsoft
Open-Sourced EVERYTHING*
* Well, not quite ever...
Before
Microsoft takes .NET
Open Source
November 12th 2014
Wait, did that happen already?
• Roslyn
• April 2014 (Apache 2.0)
• Entity Framework
• July 2012 (Apache 2.0)
• ASP.NET MV...
Licensing
Licensing
https://blogs.msdn.microsoft.com/bethmassi/2015/02/25/understanding-net-2015/
CoreCLR & CoreFX
CoreCLR – Runtime or Virtual Machine
• Garbage collector
• JIT compiler
• Base .NET data types
• Many low...
CoreFX Labs
Future work
Span<T> (a.k.a Slices) http://adamsitnik.com/Span/
High-performance text processing
Cmd-Line Tooling (CLI)
λ dotnet new
Created new C# project in
C:usersmattdotnet.
λ dotnet restore
log : Restoring packages...
Roslyn (C# Compiler)
C# compiler, written in C#
Can be consumed by 3rd parties
• Syntax highlighting
• Analysers
• Tooling...
TypeScript
VS Code
Kestrel Web Server
During
The First PR
Comedy PRs
Good
• Organisation and Process
• Never let PR’s rot
• Provide infrastructure
• Allow the community ‘in’
• ‘Getting starte...
Bad
• Some decisions made behind ‘closed doors’ (e.g. ‘project.json’)
• Microsoft still the ‘gate-keepers’
• Issues slippi...
Ugly
Ugly
After
Do .NET developers care?
Do .NET developers care?
Did going open-source make any difference?
The organization with the largest
number of contributors to open-
source projects over the past year on
GitHub is, surpris...
Are Microsoft telling the truth?
Are Microsoft telling the truth?
There’s only one way to find out!!
async Task<SearchIssuesResult> RunQuery(GitHubClientInfo clientInfo,
string query, int pageSize, int pageNumber)
{
var iss...
David Fowler
Open Source .NET – 2 years later
http://mattwarren.org/2016/11/23/open-source-net-2-years-later/
Do .NET developers care?
• Sustained contributions
• Not just an initial bump
• Opening issues and creating pull-requests
...
What Now?
How do I contribute?
• Look for ‘up-for-grabs’ issues
•Easy GitHub Search
• Suggest a new feature
•Copying from Java is al...
Domino Chain Reaction - YouTube
First CoreFX PR
by Ben Adams
First CoreCLR
PR by
Ben Adams
Contributions
by some bloke
called
‘Matt Warren’
Will I get told to RTM?
Questions?
www.mattwarren.org
@matthewwarren
Microsoft & open source a 'brave new world' - CORESTART 2.0
Microsoft & open source a 'brave new world' - CORESTART 2.0
Microsoft & open source a 'brave new world' - CORESTART 2.0
Microsoft & open source a 'brave new world' - CORESTART 2.0
Microsoft & open source a 'brave new world' - CORESTART 2.0
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Microsoft & open source a 'brave new world' - CORESTART 2.0

It's a 'brave new world' or 'hell has frozen over' (depending on your point-of-view). Microsoft is the top contributor on GitHub, they have opened-sourced their entire .NET platform and gone cross-platform!

In this talk we will look at what the new 'Open-Source' Microsoft actually looks like, what they've done, how they're doing it and what it all means. From new features to compiler design meetings, from TechEmpower benchmarks to increased community contributions, we will examine it all!

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Microsoft & open source a 'brave new world' - CORESTART 2.0

  1. 1. Microsoft and Open Source a ‘brave new world’ www.mattwarren.org @matthewwarren Microsoft MVP 2017 - ??
  2. 2. Microsoft and Open Source a ‘brave new world’ What happened when Microsoft Open-Sourced EVERYTHING* * Well, not quite everything, but pretty much all of the .NET Framework
  3. 3. Before
  4. 4. Microsoft takes .NET Open Source November 12th 2014
  5. 5. Wait, did that happen already? • Roslyn • April 2014 (Apache 2.0) • Entity Framework • July 2012 (Apache 2.0) • ASP.NET MVC • March 2012 (Apache 2.0) • ASP.NET MVC • April 2009 (MS-PL) • Managed Extensibility Framework (MEF) • August 2008 (MS-PL) • Shared Source CLI (SSCLI), a.k.a ‘Rotor’ • March 2002 (MS SCLI)
  6. 6. Licensing
  7. 7. Licensing
  8. 8. https://blogs.msdn.microsoft.com/bethmassi/2015/02/25/understanding-net-2015/
  9. 9. CoreCLR & CoreFX CoreCLR – Runtime or Virtual Machine • Garbage collector • JIT compiler • Base .NET data types • Many low-level classes CoreFX - Core Libraries • System.Collections • System.IO • System.Xml
  10. 10. CoreFX Labs Future work Span<T> (a.k.a Slices) http://adamsitnik.com/Span/ High-performance text processing
  11. 11. Cmd-Line Tooling (CLI) λ dotnet new Created new C# project in C:usersmattdotnet. λ dotnet restore log : Restoring packages for C:usersmattdotnetproject.json... log : Writing lock file to disk. Path: C:usersmattdotnetproject.lock.json log : Restore completed in 23512ms. λ dotnet build Compiling dotnet for .NETCoreApp,Version=v1.1 Compilation succeeded. 0 Warning(s) 0 Error(s) Time elapsed 00:00:01.9025293 λ dotnet run Hello World!
  12. 12. Roslyn (C# Compiler) C# compiler, written in C# Can be consumed by 3rd parties • Syntax highlighting • Analysers • Tooling Language Design Discussions
  13. 13. TypeScript
  14. 14. VS Code
  15. 15. Kestrel Web Server
  16. 16. During
  17. 17. The First PR
  18. 18. Comedy PRs
  19. 19. Good • Organisation and Process • Never let PR’s rot • Provide infrastructure • Allow the community ‘in’ • ‘Getting started’ guides
  20. 20. Bad • Some decisions made behind ‘closed doors’ (e.g. ‘project.json’) • Microsoft still the ‘gate-keepers’ • Issues slipping through the gaps • Naming is hard!! • ‘ASP.NET 5’ -> ‘ASP.NET Core 1.0’ • dnx -> dotnet
  21. 21. Ugly
  22. 22. Ugly
  23. 23. After
  24. 24. Do .NET developers care?
  25. 25. Do .NET developers care? Did going open-source make any difference?
  26. 26. The organization with the largest number of contributors to open- source projects over the past year on GitHub is, surprisingly, Microsoft, GitHub announced today. https://octoverse.github.com/
  27. 27. Are Microsoft telling the truth?
  28. 28. Are Microsoft telling the truth? There’s only one way to find out!!
  29. 29. async Task<SearchIssuesResult> RunQuery(GitHubClientInfo clientInfo, string query, int pageSize, int pageNumber) { var issue = new SearchIssuesRequest(query); issue.Repos.Add(clientInfo.Organisation, clientInfo.Repository); issue.SortField = IssueSearchSort.Created; issue.Order = SortDirection.Ascending; issue.PerPage = pageSize; issue.Page = pageNumber; var result = await clientInfo.Client.Search.SearchIssues(issue); return result; } C#
  30. 30. David Fowler
  31. 31. Open Source .NET – 2 years later http://mattwarren.org/2016/11/23/open-source-net-2-years-later/
  32. 32. Do .NET developers care? • Sustained contributions • Not just an initial bump • Opening issues and creating pull-requests • Bug fixes, entire features, future ideas • Across the entire stack • Runtime, Class libraries, Compiler, JIT and even GC
  33. 33. What Now?
  34. 34. How do I contribute? • Look for ‘up-for-grabs’ issues •Easy GitHub Search • Suggest a new feature •Copying from Java is allowed! •‘Compact Strings’ – CoreCLR Issues #7083 • Prototype something • Follow a ‘Getting Started’ guide
  35. 35. Domino Chain Reaction - YouTube
  36. 36. First CoreFX PR by Ben Adams
  37. 37. First CoreCLR PR by Ben Adams
  38. 38. Contributions by some bloke called ‘Matt Warren’
  39. 39. Will I get told to RTM?
  40. 40. Questions? www.mattwarren.org @matthewwarren
  • FrankQuintana1

    Jan. 7, 2018
  • shanyou

    Dec. 24, 2017

It's a 'brave new world' or 'hell has frozen over' (depending on your point-of-view). Microsoft is the top contributor on GitHub, they have opened-sourced their entire .NET platform and gone cross-platform! In this talk we will look at what the new 'Open-Source' Microsoft actually looks like, what they've done, how they're doing it and what it all means. From new features to compiler design meetings, from TechEmpower benchmarks to increased community contributions, we will examine it all!

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