Implement run-time dependencies for binary targets #3451
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Add a `runtime_deps` parameter, allowing for the declaration of run-time dependencies, to `build_rule` and several of the built-in build definitions that permit binary outputs. The semantics of `runtime_deps` are a combination of the semantics of `deps` and `data`. If the output of a `build_rule` is marked as binary, targets listed in `runtime_deps` are: - guaranteed to have been built before the dependent target runs; - copied into build and test environments alongside the dependent target. Like build-time dependencies declared with `deps`, run-time dependencies are computed transitively; i.e., if target A has a run-time dependency on target B which in turn has a run-time dependency on target C, targets B and C will be built before `plz run`ning target A, and the outputs of targets B and C will be copied into build environments (or test environments, if target A is a test) alongside the outputs of target A. Unlike build-time dependencies, downward searches for transitive run-time dependencies are not blocked by the `output_is_complete` parameter.
toastwaffle
requested changes
Nov 12, 2025
| cmd = "touch $OUTS", | ||
| ) | ||
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| def target(name:str, build_tests:list=[], post_build:function=None, requires:list=None, provides:dict=None, |
toastwaffle
approved these changes
Nov 13, 2025
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Add a
runtime_depsparameter, allowing for the declaration of run-time dependencies, tobuild_ruleand several of the built-in build definitions that permit binary outputs.The semantics of
runtime_depsare a combination of the semantics ofdepsanddata. If the output of abuild_ruleis marked as binary, targets listed inruntime_depsare:Like build-time dependencies declared with
deps, run-time dependencies are computed transitively; i.e., if target A has a run-time dependency on target B which in turn has a run-time dependency on target C, targets B and C will be built beforeplz running target A, and the outputs of targets B and C will be copied into build environments (or test environments, if target A is a test) alongside the outputs of target A. Unlike build-time dependencies, downward searches for transitive run-time dependencies are not blocked by theoutput_is_completeparameter.