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Reproducible C++ builds by logging Git hashes

Reproducible C++ builds by logging Git hashes

2 comments

·November 14, 2025
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chuckadams

Give Nix a look sometime, it takes this to a whole new level by including all of the build dependencies in the hash, and their build dependencies and so on. The standard flake workflow even includes the warning about having uncommitted files.

j4cobgarby

Here's a short writeup of a bit of my build system for a project I'm working on. It's pretty simple, and is just a relatively clean way of recording the repository state when code was compiled, so I can reproduce results later on. Just thought the interaction between git, cmake, and C++ was a bit nice!