tree c146e318d0c0e0c635b7f936bc671808ec29b61d
parent 317fdc1dc20d221e9fe60eb63423d2b736b01a53
author Petr Hosek <phosek@google.com> 1590822652 -0700
committer Commit Bot <commit-bot@chromium.org> 1591687706 +0000

Specify deps format for actions

Setting deps format is necessary for Ninja to store the depfile in its
internal dependency database. This can significantly speed up loading
for large dependency files, which can be the case for custom language
support, e.g. Go or Dart in Fuchsia, where we emit large depfiles from
actions. This also enables the use of `ninja -t deps` tool for custom
actions.

We hardcode the format to gcc since the documentation for depfile
already explicitly specifies that "format is that of a Makefile".

Change-Id: I67dfdfe4ede8fe8d4a2a1fa3ee2cecb7c185aafd
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/8722
Commit-Queue: Petr Hosek <phosek@google.com>
Reviewed-by: Brett Wilson <brettw@chromium.org>