feat: short-circuit compilation and read build artifacts from file if program is unchanged #2743
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TomAFrench
changed the title
kobyhallx
previously approved these changes
Sep 19, 2023
kevaundray
approved these changes
Sep 20, 2023
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Description
Problem*
Resolves #2712
Summary*
This PR adds a checksum to
CompiledProgram/PreprocessedPrograms which allows nargo to determine whether it can reuse a previously created build artifact in place of performing a full compilation of the source code.To do this, I've implemented
HashonProgramand this hash is included in the build artifact. After monomorphization we recompute this checksum and compare it against the saved build artifact, if they match then we skip compilation and return the old build artifact.One thing to note is that if you use a cached build artifact for execution then you will not get any debug information. This will be addressed in a followup PR.
Documentation
This PR requires documentation updates when merged.
Additional Context
PR Checklist*
cargo fmton default settings.