build: limit clang-tidy concurrency and respect NIX_BUILD_CORES

Apparently it was impolite to lint with 128 jobs on our CI machine with
128 threads. Let's fix it.

Change-Id: I9ca7306294c6773c6f233690ba49d45a1da6bf7a
This commit is contained in:
Jade Lovelace 2024-08-10 18:40:21 -07:00
parent 007211e7a2
commit ecfe9345cf

View file

@ -57,6 +57,12 @@ build_all_generated_headers = custom_target(
)
if lix_clang_tidy_so_found
default_concurrency = run_command(python, '-c', '''
import multiprocessing
import os
print(min(multiprocessing.cpu_count(), int(os.environ.get("NIX_BUILD_CORES", "16"))))
''', check : true).stdout()
run_clang_tidy_args = [
'-load',
lix_clang_tidy_so,
@ -66,6 +72,7 @@ if lix_clang_tidy_so_found
# https://github.com/llvm/llvm-project/issues/101440
meson.current_build_dir(),
'-quiet',
'-j', default_concurrency,
]
run_target(
'clang-tidy',