tree 9642775ea07b65aa83f9e2431b618345935b3ef0
parent 127c7783a8344ff5908ac679c92e632be556c3ad
author Takuto Ikuta <tikuta@google.com> 1783408193 +0900
committer gn-scoped@luci-project-accounts.iam.gserviceaccount.com <gn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1783409403 -0700

Add public_inputs variable to action targets and propagate dependencies

This change introduces the `public_inputs` variable to `action` and
`action_foreach` targets. The specified files are treated as implicit
inputs of dependent targets, meaning they propagate to direct dependents
and transitively across targets depending via `public_deps`.

To avoid bloat in the generated `.ninja` files, we compile public inputs
into a dedicated `.public_inputs` (or `.public_inputs.stamp`)
phony/stamp target for each action. Dependent targets then implicitly
depend on this dedicated target, rather than listing all files
explicitly in their build lines.

I'll use this for input files propagation in typescript compilation in
devtools-frontend.

Bug: 531579666
Change-Id: If078534cdb51ab8a61e6f8095e0c29aa72bc283c
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/23700
Reviewed-by: Junji Watanabe <jwata@google.com>
Reviewed-by: David Turner <digit@google.com>
Commit-Queue: Takuto Ikuta <tikuta@google.com>