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Merge pull request #78959 from lawnjelly/scu_limit
SCons : Add "scu_limit" argument
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commit
2757c2a495
12
SConstruct
12
SConstruct
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@ -220,6 +220,7 @@ opts.Add(
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)
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opts.Add(BoolVariable("use_precise_math_checks", "Math checks use very precise epsilon (debug option)", False))
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opts.Add(BoolVariable("scu_build", "Use single compilation unit build", False))
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opts.Add("scu_limit", "Max includes per SCU file when using scu_build (determines RAM use)", "0")
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# Thirdparty libraries
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opts.Add(BoolVariable("builtin_brotli", "Use the built-in Brotli library", True))
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@ -551,7 +552,16 @@ if selected_platform in platform_list:
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# Run SCU file generation script if in a SCU build.
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if env["scu_build"]:
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methods.set_scu_folders(scu_builders.generate_scu_files(env["verbose"], env_base.dev_build == False))
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max_includes_per_scu = 8
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if env_base.dev_build == True:
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max_includes_per_scu = 1024
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read_scu_limit = int(env["scu_limit"])
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read_scu_limit = max(0, min(read_scu_limit, 1024))
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if read_scu_limit != 0:
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max_includes_per_scu = read_scu_limit
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methods.set_scu_folders(scu_builders.generate_scu_files(env["verbose"], max_includes_per_scu))
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# Must happen after the flags' definition, as configure is when most flags
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# are actually handled to change compile options, etc.
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@ -8,8 +8,8 @@ from os.path import normpath, basename
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base_folder_path = str(Path(__file__).parent) + "/"
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base_folder_only = os.path.basename(os.path.normpath(base_folder_path))
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_verbose = False
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_is_release_build = False
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_scu_folders = set()
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_max_includes_per_scu = 1024
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def clear_out_existing_files(output_folder, extension):
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@ -197,13 +197,14 @@ def process_folder(folders, sought_exceptions=[], includes_per_scu=0, extension=
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# adjust number of output files according to whether DEV or release
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num_output_files = 1
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if _is_release_build:
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# always have a maximum in release
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includes_per_scu = 8
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num_output_files = max(math.ceil(total_lines / float(includes_per_scu)), 1)
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if includes_per_scu == 0:
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includes_per_scu = _max_includes_per_scu
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else:
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if includes_per_scu > 0:
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num_output_files = max(math.ceil(total_lines / float(includes_per_scu)), 1)
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if includes_per_scu > _max_includes_per_scu:
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includes_per_scu = _max_includes_per_scu
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num_output_files = max(math.ceil(total_lines / float(includes_per_scu)), 1)
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lines_per_file = math.ceil(total_lines / float(num_output_files))
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lines_per_file = max(lines_per_file, 1)
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@ -241,15 +242,15 @@ def process_folder(folders, sought_exceptions=[], includes_per_scu=0, extension=
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)
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def generate_scu_files(verbose, is_release_build):
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def generate_scu_files(verbose, max_includes_per_scu):
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print("=============================")
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print("Single Compilation Unit Build")
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print("=============================")
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print("Generating SCU build files")
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global _verbose
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_verbose = verbose
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global _is_release_build
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_is_release_build = is_release_build
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global _max_includes_per_scu
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_max_includes_per_scu = max_includes_per_scu
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print("Generating SCU build files... (max includes per scu " + str(_max_includes_per_scu) + ")")
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curr_folder = os.path.abspath("./")
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