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6375fa7987
This change adds the capability of ngc_wrapped to emit an unused_inputs_list file that could be used by starlark. We are making this change because in situations where angular modules depend on angular modules, it becomes very easy for a single change to trigger a long cascading set of angular builds since each angular rule depends on the transitive closure of input files. With this change in place, and once it is properly configured, bazel will update the set of inputs to a build rule after it is built once removing any of the inputs specified in this list, making incremental builds quicker by skipping any rebuilds that only had changes to unused inputs. This logic should be, and is likely duplicated in tsc_wrapped to solve the same problem in pure TypeScript situations, ideally we could use the same implementation one day. In addition, its possible that tree artifacts are not as supported as we'd like, and where this change should mark entire directories as unused, we may get better performance gains by enumerating the directory and being more explicit about specific inputs which are unused. PR Close #45946 |
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