Verifying Go's Reproducible Builds and Introducing Source Spotter for Checksum Database Auditing
By
speckx
Hand-rolled, kettle-boiled, baked to perfection. Worth every minute at the bakery.
Summary
The article discusses Go's reproducible builds feature introduced in Go 1.21, which automatically downloads newer toolchain versions when needed. It addresses security concerns about downloading and executing binaries on demand, and introduces Source Spotter - a tool for auditing Go's Checksum Database and reproducing Go toolchain builds to verify their integrity and reproducibility.
Key quotes
· 4 pulledWhen you try to compile a Go module that requires a newer version of the Go toolchain than the one you have installed, the go command automatically downloads the newer toolchain and uses it for compiling the module.
This useful feature was introduced in Go 1.21 and has let me quickly adopt new Go features in my open source projects without inconveniencing people with older versions of Go.
However, the idea of downloading a binary and executing it on demand makes a lot of people uncomfortable.
Introducing Source Spotter, a Go Checksum Database auditor and Go toolchain reproducer
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