I'm a software engineer working at Microsoft on Git and VFS for Git. This is my personal webpage, which includes links to things I've done throughout my entire career. Opinions are my own.
Stolee's Dev Blog, 2019
Azure DevOps Blog, 2019
Stolee's Dev Blog, 2019
Azure DevOps Blog, 2018
Azure DevOps Blog, 2018
Azure DevOps Blog, 2018
Azure DevOps Blog, 2018
Azure DevOps Blog, 2018
Azure DevOps Blog, 2018
A discussion about Git, Git for Windows, and the commit-graph. Thrashing Code, September 2019.
An intro to some deep Git concepts, NCSU Software Engineering, August 2019.
with Johannes Schindelin, Git Merge 2018.
Write the Git commit-graph after every `git fetch` operation, ensuring that the repo is optimized for the new objects. Git v2.24.0
Create new `feature.*` config options that group other config options together. Provides recommendations for users who do not want to read every config setting. Git v2.24.0
Speeds up
git commit-graph write by amortizing writes across many small writes (and few big writes).
Git v2.23.0
Use the multi-pack-index to repack the object store incrementally in a highly-available environment. Git v2.23.0
Speeds up
git push for developers working in a small cone of a large repo.
Git v2.21.0
Significantly speeds up
git log --graph calls when the commit-graph feature is enabled.
Git v2.20.0
Verify the multi-pack-index file for corruption. Git v2.20.0
Collect and reorganize commit walking code, and improve several algorithms in the process. Git v2.20.0
Create a new file to index objects across multiple pack-files. Git v2.20.0
Verify the commit-graph file for corruption, and write the file automatically during repo maintenance. Git v2.20.0
Compute generation numbers in the commit-graph file and use them in some commit walks. Git v2.19.0
Create a new data structure and file format to store a compact representation of the commit history. Git v2.18.0
Significantly improve the mechanism for computing the shortest unambiguous abbreviation of an object ID. Git v2.17.0
Features a discussion of feature macros and `fetch.writeCommitGraph`.
Features a discussion of multi-pack-index repack/expire and incremental commit-graph.
Features a discussion of the incremental commit-graph feature.
I was awarded a Google Open Source Peer Bonus for my contributions to Git.
Links to BDFL.
Features a discussion of the review around the new sparse push algorithm.
Includes description of multi-pack-index feature.
John Briggs discusses several Microsoft contributions and how they improve performance for the Windows OS repository. Features commit-graph, multi-pack-index, background prefetch, and sparse push algorithm.
Features a summary of the support email thread "commit-graph is cool". Also discusses the RFC on Generation Number v2.
Includes an update on the commit-graph feature (in the "Cooking" section).
Highlighted in a developer spotlight.
A silly clicker game featuring graphs.
Source code
A collection of source code and values for functions in extremal combinatorics.
Source code