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ci: add check for update_jets running via new lock file - #396

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apoelstra merged 1 commit into
BlockstreamResearch:masterfrom
stringhandler:st-jets-generator-revision
Oct 20, 2026
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apoelstra merged 1 commit into
BlockstreamResearch:masterfrom
stringhandler:st-jets-generator-revision

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update_jets.sh only warned when the libsimplicity checkout running GenRustJets was at a different revision from the vendored one, or had local changes, so the jets could silently come from a different generator than the vendored C. This
has been changed to an error.

Add update_jets.sh --check, which recomputes the lock file contents for the vendored revision and fails unless they match update_jets.lock, and run it in the Vendored libsimplicity job. This catches jets generated from a different libsimplicity revision as well as hand edits to the generated files, without needing a Haskell toolchain in CI.

The update_jets.lock here was written by running this script at the vendored revision ba967b1a. It regenerated the jets byte-for-byte, confirming that the committed jets match that revision.

Assisted by Claude.

…ision

update_jets.sh only warned when the libsimplicity checkout running GenRustJets
was at a different revision from the vendored one, or had local changes, so the
jets could silently come from a different generator than the vendored C. 

Add update_jets.sh --check, which recomputes the lock file contents for the
vendored revision and fails unless they match update_jets.lock, and run it in
the Vendored libsimplicity job. This catches jets generated from a different
libsimplicity revision as well as hand edits to the generated files, without
needing a Haskell toolchain in CI.

The update_jets.lock here was written by running this script at the vendored
revision ba967b1a. It regenerated the jets byte-for-byte, confirming that the
committed jets match that revision.

Assisted by Claude.

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ACK cd24bdd; successfully ran local tests

@apoelstra
apoelstra merged commit 96df0af into BlockstreamResearch:master Oct 20, 2026
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2 participants