Commits on Sep 4, 2024

1. Ensure depfile's parent directory is created before running an action. …

   For most actions, the depfile will be in the same directory as one
   of its outputs, and their  parent directory will be created by Ninja
   before running the command. However, this is not always the case.
   
   In particular, the GN build tool is changing its Ninja build plan
   generation logic, switching from using stamp files to phony targets,
   after issue ninja-build#478 was fixed in Ninja. For additionnal context
   see https://gn-review.googlesource.com/c/gn/+/11380.
   
   The newly generated build plans trigger this condition more frequently,
   which results in flaky build failures for large GN-based projects such
   as Fuchsia.
   
   This patch ensures the depfile's parent directory is always created
   before the command is launched to get rid of the issue entirely.

   

   digit-google committed Sep 4, 2024
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