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SCons : Add "scu_limit" argument

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"scu_limit" allows specifying the maximum number of includes in a single SCU file (translation unit). A lower limit (e.g. 8) uses less RAM during compilation, but may be slower to compile.
This commit is contained in:
lawnjelly
2023-07-02 19:23:28 +01:00
parent 46424488ed
commit 7b830ebdc1
2 changed files with 23 additions and 12 deletions
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23
scu_builders.py
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@@ -8,8 +8,8 @@ from os.path import normpath, basename
base_folder_path = str(Path(__file__).parent) + "/"
base_folder_only = os.path.basename(os.path.normpath(base_folder_path))
_verbose = False
_is_release_build = False
_scu_folders = set()
_max_includes_per_scu = 1024
def clear_out_existing_files(output_folder, extension):
@@ -197,13 +197,14 @@ def process_folder(folders, sought_exceptions=[], includes_per_scu=0, extension=
# adjust number of output files according to whether DEV or release
num_output_files = 1
if _is_release_build:
# always have a maximum in release
includes_per_scu = 8
num_output_files = max(math.ceil(total_lines / float(includes_per_scu)), 1)
if includes_per_scu == 0:
includes_per_scu = _max_includes_per_scu
else:
if includes_per_scu > 0:
num_output_files = max(math.ceil(total_lines / float(includes_per_scu)), 1)
if includes_per_scu > _max_includes_per_scu:
includes_per_scu = _max_includes_per_scu
num_output_files = max(math.ceil(total_lines / float(includes_per_scu)), 1)
lines_per_file = math.ceil(total_lines / float(num_output_files))
lines_per_file = max(lines_per_file, 1)
@@ -241,15 +242,15 @@ def process_folder(folders, sought_exceptions=[], includes_per_scu=0, extension=
)
def generate_scu_files(verbose, is_release_build):
def generate_scu_files(verbose, max_includes_per_scu):
print("=============================")
print("Single Compilation Unit Build")
print("=============================")
print("Generating SCU build files")
global _verbose
_verbose = verbose
global _is_release_build
_is_release_build = is_release_build
global _max_includes_per_scu
_max_includes_per_scu = max_includes_per_scu
print("Generating SCU build files... (max includes per scu " + str(_max_includes_per_scu) + ")")
curr_folder = os.path.abspath("./")