import os import re import glob import subprocess from collections import OrderedDict def add_source_files(self, sources, files, warn_duplicates=True): # Convert string to list of absolute paths (including expanding wildcard) if isinstance(files, (str, bytes)): # Keep SCons project-absolute path as they are (no wildcard support) if files.startswith("#"): if "*" in files: print("ERROR: Wildcards can't be expanded in SCons project-absolute path: '{}'".format(files)) return files = [files] else: dir_path = self.Dir(".").abspath files = sorted(glob.glob(dir_path + "/" + files)) # Add each path as compiled Object following environment (self) configuration for path in files: obj = self.Object(path) if obj in sources: if warn_duplicates: print('WARNING: Object "{}" already included in environment sources.'.format(obj)) else: continue sources.append(obj) def disable_warnings(self): # 'self' is the environment if self.msvc: # We have to remove existing warning level defines before appending /w, # otherwise we get: "warning D9025 : overriding '/W3' with '/w'" warn_flags = ["/Wall", "/W4", "/W3", "/W2", "/W1", "/WX"] self.Append(CCFLAGS=["/w"]) self.Append(CFLAGS=["/w"]) self.Append(CXXFLAGS=["/w"]) self["CCFLAGS"] = [x for x in self["CCFLAGS"] if not x in warn_flags] self["CFLAGS"] = [x for x in self["CFLAGS"] if not x in warn_flags] self["CXXFLAGS"] = [x for x in self["CXXFLAGS"] if not x in warn_flags] else: self.Append(CCFLAGS=["-w"]) self.Append(CFLAGS=["-w"]) self.Append(CXXFLAGS=["-w"]) def add_module_version_string(self, s): self.module_version_string += "." + s def update_version(module_version_string=""): build_name = "custom_build" if os.getenv("BUILD_NAME") != None: build_name = os.getenv("BUILD_NAME") print("Using custom build name: " + build_name) import version # NOTE: It is safe to generate this file here, since this is still executed serially f = open("core/version_generated.gen.h", "w") f.write("/* THIS FILE IS GENERATED DO NOT EDIT */\n") f.write("#ifndef VERSION_GENERATED_GEN_H\n") f.write("#define VERSION_GENERATED_GEN_H\n") f.write('#define VERSION_SHORT_NAME "' + str(version.short_name) + '"\n') f.write('#define VERSION_NAME "' + str(version.name) + '"\n') f.write("#define VERSION_MAJOR " + str(version.major) + "\n") f.write("#define VERSION_MINOR " + str(version.minor) + "\n") f.write("#define VERSION_PATCH " + str(version.patch) + "\n") f.write('#define VERSION_STATUS "' + str(version.status) + '"\n') f.write('#define VERSION_BUILD "' + str(build_name) + '"\n') f.write('#define VERSION_MODULE_CONFIG "' + str(version.module_config) + module_version_string + '"\n') f.write("#define VERSION_YEAR " + str(version.year) + "\n") f.write('#define VERSION_WEBSITE "' + str(version.website) + '"\n') f.write("#endif // VERSION_GENERATED_GEN_H\n") f.close() # NOTE: It is safe to generate this file here, since this is still executed serially fhash = open("core/version_hash.gen.h", "w") fhash.write("/* THIS FILE IS GENERATED DO NOT EDIT */\n") fhash.write("#ifndef VERSION_HASH_GEN_H\n") fhash.write("#define VERSION_HASH_GEN_H\n") githash = "" gitfolder = ".git" if os.path.isfile(".git"): module_folder = open(".git", "r").readline().strip() if module_folder.startswith("gitdir: "): gitfolder = module_folder[8:] if os.path.isfile(os.path.join(gitfolder, "HEAD")): head = open(os.path.join(gitfolder, "HEAD"), "r").readline().strip() if head.startswith("ref: "): head = os.path.join(gitfolder, head[5:]) if os.path.isfile(head): githash = open(head, "r").readline().strip() else: githash = head fhash.write('#define VERSION_HASH "' + githash + '"\n') fhash.write("#endif // VERSION_HASH_GEN_H\n") fhash.close() def parse_cg_file(fname, uniforms, sizes, conditionals): fs = open(fname, "r") line = fs.readline() while line: if re.match(r"^\s*uniform", line): res = re.match(r"uniform ([\d\w]*) ([\d\w]*)") type = res.groups(1) name = res.groups(2) uniforms.append(name) if type.find("texobj") != -1: sizes.append(1) else: t = re.match(r"float(\d)x(\d)", type) if t: sizes.append(int(t.groups(1)) * int(t.groups(2))) else: t = re.match(r"float(\d)", type) sizes.append(int(t.groups(1))) if line.find("[branch]") != -1: conditionals.append(name) line = fs.readline() fs.close() def detect_modules(at_path): module_list = OrderedDict() # name : path modules_glob = os.path.join(at_path, "*") files = glob.glob(modules_glob) files.sort() # so register_module_types does not change that often, and also plugins are registered in alphabetic order for x in files: if not is_module(x): continue name = os.path.basename(x) path = x.replace("\\", "/") # win32 module_list[name] = path return module_list def is_module(path): return os.path.isdir(path) and os.path.exists(os.path.join(path, "SCsub")) def write_modules(module_list): includes_cpp = "" preregister_cpp = "" register_cpp = "" unregister_cpp = "" for name, path in module_list.items(): try: with open(os.path.join(path, "register_types.h")): includes_cpp += '#include "' + path + '/register_types.h"\n' preregister_cpp += "#ifdef MODULE_" + name.upper() + "_ENABLED\n" preregister_cpp += "#ifdef MODULE_" + name.upper() + "_HAS_PREREGISTER\n" preregister_cpp += "\tpreregister_" + name + "_types();\n" preregister_cpp += "#endif\n" preregister_cpp += "#endif\n" register_cpp += "#ifdef MODULE_" + name.upper() + "_ENABLED\n" register_cpp += "\tregister_" + name + "_types();\n" register_cpp += "#endif\n" unregister_cpp += "#ifdef MODULE_" + name.upper() + "_ENABLED\n" unregister_cpp += "\tunregister_" + name + "_types();\n" unregister_cpp += "#endif\n" except IOError: pass modules_cpp = """// register_module_types.gen.cpp /* THIS FILE IS GENERATED DO NOT EDIT */ #include "register_module_types.h" #include "modules/modules_enabled.gen.h" %s void preregister_module_types() { %s } void register_module_types() { %s } void unregister_module_types() { %s } """ % ( includes_cpp, preregister_cpp, register_cpp, unregister_cpp, ) # NOTE: It is safe to generate this file here, since this is still executed serially with open("modules/register_module_types.gen.cpp", "w") as f: f.write(modules_cpp) def convert_custom_modules_path(path): if not path: return path err_msg = "Build option 'custom_modules' must %s" if not os.path.isdir(path): raise ValueError(err_msg % "point to an existing directory.") if os.path.realpath(path) == os.path.realpath("modules"): raise ValueError(err_msg % "be a directory other than built-in `modules` directory.") if is_module(path): raise ValueError(err_msg % "point to a directory with modules, not a single module.") return os.path.realpath(os.path.expanduser(path)) def disable_module(self): self.disabled_modules.append(self.current_module) def module_check_dependencies(self, module, dependencies): """ Checks if module dependencies are enabled for a given module, and prints a warning if they aren't. Meant to be used in module `can_build` methods. Returns a boolean (True if dependencies are satisfied). """ missing_deps = [] for dep in dependencies: opt = "module_{}_enabled".format(dep) if not opt in self or not self[opt]: missing_deps.append(dep) if missing_deps != []: print( "Disabling '{}' module as the following dependencies are not satisfied: {}".format( module, ", ".join(missing_deps) ) ) return False else: return True def use_windows_spawn_fix(self, platform=None): if os.name != "nt": return # not needed, only for windows # On Windows, due to the limited command line length, when creating a static library # from a very high number of objects SCons will invoke "ar" once per object file; # that makes object files with same names to be overwritten so the last wins and # the library looses symbols defined by overwritten objects. # By enabling quick append instead of the default mode (replacing), libraries will # got built correctly regardless the invocation strategy. # Furthermore, since SCons will rebuild the library from scratch when an object file # changes, no multiple versions of the same object file will be present. self.Replace(ARFLAGS="q") def mySubProcess(cmdline, env): startupinfo = subprocess.STARTUPINFO() startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW proc = subprocess.Popen( cmdline, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, startupinfo=startupinfo, shell=False, env=env, ) _, err = proc.communicate() rv = proc.wait() if rv: print("=====") print(err) print("=====") return rv def mySpawn(sh, escape, cmd, args, env): newargs = " ".join(args[1:]) cmdline = cmd + " " + newargs rv = 0 env = {str(key): str(value) for key, value in iter(env.items())} if len(cmdline) > 32000 and cmd.endswith("ar"): cmdline = cmd + " " + args[1] + " " + args[2] + " " for i in range(3, len(args)): rv = mySubProcess(cmdline + args[i], env) if rv: break else: rv = mySubProcess(cmdline, env) return rv self["SPAWN"] = mySpawn def save_active_platforms(apnames, ap): for x in ap: names = ["logo"] if os.path.isfile(x + "/run_icon.png"): names.append("run_icon") for name in names: pngf = open(x + "/" + name + ".png", "rb") b = pngf.read(1) str = " /* AUTOGENERATED FILE, DO NOT EDIT */ \n" str += " static const unsigned char _" + x[9:] + "_" + name + "[]={" while len(b) == 1: str += hex(ord(b)) b = pngf.read(1) if len(b) == 1: str += "," str += "};\n" pngf.close() # NOTE: It is safe to generate this file here, since this is still executed serially wf = x + "/" + name + ".gen.h" with open(wf, "w") as pngw: pngw.write(str) def no_verbose(sys, env): colors = {} # Colors are disabled in non-TTY environments such as pipes. This means # that if output is redirected to a file, it will not contain color codes if sys.stdout.isatty(): colors["cyan"] = "\033[96m" colors["purple"] = "\033[95m" colors["blue"] = "\033[94m" colors["green"] = "\033[92m" colors["yellow"] = "\033[93m" colors["red"] = "\033[91m" colors["end"] = "\033[0m" else: colors["cyan"] = "" colors["purple"] = "" colors["blue"] = "" colors["green"] = "" colors["yellow"] = "" colors["red"] = "" colors["end"] = "" compile_source_message = "{}Compiling {}==> {}$SOURCE{}".format( colors["blue"], colors["purple"], colors["yellow"], colors["end"] ) java_compile_source_message = "{}Compiling {}==> {}$SOURCE{}".format( colors["blue"], colors["purple"], colors["yellow"], colors["end"] ) compile_shared_source_message = "{}Compiling shared {}==> {}$SOURCE{}".format( colors["blue"], colors["purple"], colors["yellow"], colors["end"] ) link_program_message = "{}Linking Program {}==> {}$TARGET{}".format( colors["red"], colors["purple"], colors["yellow"], colors["end"] ) link_library_message = "{}Linking Static Library {}==> {}$TARGET{}".format( colors["red"], colors["purple"], colors["yellow"], colors["end"] ) ranlib_library_message = "{}Ranlib Library {}==> {}$TARGET{}".format( colors["red"], colors["purple"], colors["yellow"], colors["end"] ) link_shared_library_message = "{}Linking Shared Library {}==> {}$TARGET{}".format( colors["red"], colors["purple"], colors["yellow"], colors["end"] ) java_library_message = "{}Creating Java Archive {}==> {}$TARGET{}".format( colors["red"], colors["purple"], colors["yellow"], colors["end"] ) env.Append(CXXCOMSTR=[compile_source_message]) env.Append(CCCOMSTR=[compile_source_message]) env.Append(SHCCCOMSTR=[compile_shared_source_message]) env.Append(SHCXXCOMSTR=[compile_shared_source_message]) env.Append(ARCOMSTR=[link_library_message]) env.Append(RANLIBCOMSTR=[ranlib_library_message]) env.Append(SHLINKCOMSTR=[link_shared_library_message]) env.Append(LINKCOMSTR=[link_program_message]) env.Append(JARCOMSTR=[java_library_message]) env.Append(JAVACCOMSTR=[java_compile_source_message]) def detect_visual_c_compiler_version(tools_env): # tools_env is the variable scons uses to call tools that execute tasks, SCons's env['ENV'] that executes tasks... # (see the SCons documentation for more information on what it does)... # in order for this function to be well encapsulated i choose to force it to receive SCons's TOOLS env (env['ENV'] # and not scons setup environment (env)... so make sure you call the right environment on it or it will fail to detect # the proper vc version that will be called # There is no flag to give to visual c compilers to set the architecture, ie scons bits argument (32,64,ARM etc) # There are many different cl.exe files that are run, and each one compiles & links to a different architecture # As far as I know, the only way to figure out what compiler will be run when Scons calls cl.exe via Program() # is to check the PATH variable and figure out which one will be called first. Code below does that and returns: # the following string values: # "" Compiler not detected # "amd64" Native 64 bit compiler # "amd64_x86" 64 bit Cross Compiler for 32 bit # "x86" Native 32 bit compiler # "x86_amd64" 32 bit Cross Compiler for 64 bit # There are other architectures, but Godot does not support them currently, so this function does not detect arm/amd64_arm # and similar architectures/compilers # Set chosen compiler to "not detected" vc_chosen_compiler_index = -1 vc_chosen_compiler_str = "" # Start with Pre VS 2017 checks which uses VCINSTALLDIR: if "VCINSTALLDIR" in tools_env: # print("Checking VCINSTALLDIR") # find() works with -1 so big ifs below are needed... the simplest solution, in fact # First test if amd64 and amd64_x86 compilers are present in the path vc_amd64_compiler_detection_index = tools_env["PATH"].find(tools_env["VCINSTALLDIR"] + "BIN\\amd64;") if vc_amd64_compiler_detection_index > -1: vc_chosen_compiler_index = vc_amd64_compiler_detection_index vc_chosen_compiler_str = "amd64" vc_amd64_x86_compiler_detection_index = tools_env["PATH"].find(tools_env["VCINSTALLDIR"] + "BIN\\amd64_x86;") if vc_amd64_x86_compiler_detection_index > -1 and ( vc_chosen_compiler_index == -1 or vc_chosen_compiler_index > vc_amd64_x86_compiler_detection_index ): vc_chosen_compiler_index = vc_amd64_x86_compiler_detection_index vc_chosen_compiler_str = "amd64_x86" # Now check the 32 bit compilers vc_x86_compiler_detection_index = tools_env["PATH"].find(tools_env["VCINSTALLDIR"] + "BIN;") if vc_x86_compiler_detection_index > -1 and ( vc_chosen_compiler_index == -1 or vc_chosen_compiler_index > vc_x86_compiler_detection_index ): vc_chosen_compiler_index = vc_x86_compiler_detection_index vc_chosen_compiler_str = "x86" vc_x86_amd64_compiler_detection_index = tools_env["PATH"].find(tools_env["VCINSTALLDIR"] + "BIN\\x86_amd64;") if vc_x86_amd64_compiler_detection_index > -1 and ( vc_chosen_compiler_index == -1 or vc_chosen_compiler_index > vc_x86_amd64_compiler_detection_index ): vc_chosen_compiler_index = vc_x86_amd64_compiler_detection_index vc_chosen_compiler_str = "x86_amd64" # and for VS 2017 and newer we check VCTOOLSINSTALLDIR: if "VCTOOLSINSTALLDIR" in tools_env: # Newer versions have a different path available vc_amd64_compiler_detection_index = ( tools_env["PATH"].upper().find(tools_env["VCTOOLSINSTALLDIR"].upper() + "BIN\\HOSTX64\\X64;") ) if vc_amd64_compiler_detection_index > -1: vc_chosen_compiler_index = vc_amd64_compiler_detection_index vc_chosen_compiler_str = "amd64" vc_amd64_x86_compiler_detection_index = ( tools_env["PATH"].upper().find(tools_env["VCTOOLSINSTALLDIR"].upper() + "BIN\\HOSTX64\\X86;") ) if vc_amd64_x86_compiler_detection_index > -1 and ( vc_chosen_compiler_index == -1 or vc_chosen_compiler_index > vc_amd64_x86_compiler_detection_index ): vc_chosen_compiler_index = vc_amd64_x86_compiler_detection_index vc_chosen_compiler_str = "amd64_x86" vc_x86_compiler_detection_index = ( tools_env["PATH"].upper().find(tools_env["VCTOOLSINSTALLDIR"].upper() + "BIN\\HOSTX86\\X86;") ) if vc_x86_compiler_detection_index > -1 and ( vc_chosen_compiler_index == -1 or vc_chosen_compiler_index > vc_x86_compiler_detection_index ): vc_chosen_compiler_index = vc_x86_compiler_detection_index vc_chosen_compiler_str = "x86" vc_x86_amd64_compiler_detection_index = ( tools_env["PATH"].upper().find(tools_env["VCTOOLSINSTALLDIR"].upper() + "BIN\\HOSTX86\\X64;") ) if vc_x86_amd64_compiler_detection_index > -1 and ( vc_chosen_compiler_index == -1 or vc_chosen_compiler_index > vc_x86_amd64_compiler_detection_index ): vc_chosen_compiler_index = vc_x86_amd64_compiler_detection_index vc_chosen_compiler_str = "x86_amd64" return vc_chosen_compiler_str def find_visual_c_batch_file(env): from SCons.Tool.MSCommon.vc import get_default_version, get_host_target, find_batch_file version = get_default_version(env) (host_platform, target_platform, _) = get_host_target(env) return find_batch_file(env, version, host_platform, target_platform)[0] def generate_cpp_hint_file(filename): if os.path.isfile(filename): # Don't overwrite an existing hint file since the user may have customized it. pass else: try: with open(filename, "w") as fd: fd.write("#define GDCLASS(m_class, m_inherits)\n") except IOError: print("Could not write cpp.hint file.") def generate_vs_project(env, num_jobs): batch_file = find_visual_c_batch_file(env) if batch_file: def build_commandline(commands): common_build_prefix = [ 'cmd /V /C set "plat=$(PlatformTarget)"', '(if "$(PlatformTarget)"=="x64" (set "plat=x86_amd64"))', 'set "tools=yes"', '(if "$(Configuration)"=="release" (set "tools=no"))', 'call "' + batch_file + '" !plat!', ] result = " ^& ".join(common_build_prefix + [commands]) return result env.AddToVSProject(env.core_sources) env.AddToVSProject(env.main_sources) env.AddToVSProject(env.modules_sources) env.AddToVSProject(env.scene_sources) env.AddToVSProject(env.servers_sources) env.AddToVSProject(env.editor_sources) # windows allows us to have spaces in paths, so we need # to double quote off the directory. However, the path ends # in a backslash, so we need to remove this, lest it escape the # last double quote off, confusing MSBuild env["MSVSBUILDCOM"] = build_commandline( "scons --directory=\"$(ProjectDir.TrimEnd('\\'))\" platform=windows progress=no target=$(Configuration) tools=!tools! -j" + str(num_jobs) ) env["MSVSREBUILDCOM"] = build_commandline( "scons --directory=\"$(ProjectDir.TrimEnd('\\'))\" platform=windows progress=no target=$(Configuration) tools=!tools! vsproj=yes -j" + str(num_jobs) ) env["MSVSCLEANCOM"] = build_commandline( "scons --directory=\"$(ProjectDir.TrimEnd('\\'))\" --clean platform=windows progress=no target=$(Configuration) tools=!tools! -j" + str(num_jobs) ) # This version information (Win32, x64, Debug, Release, Release_Debug seems to be # required for Visual Studio to understand that it needs to generate an NMAKE # project. Do not modify without knowing what you are doing. debug_variants = ["debug|Win32"] + ["debug|x64"] release_variants = ["release|Win32"] + ["release|x64"] release_debug_variants = ["release_debug|Win32"] + ["release_debug|x64"] variants = debug_variants + release_variants + release_debug_variants debug_targets = ["bin\\godot.windows.tools.32.exe"] + ["bin\\godot.windows.tools.64.exe"] release_targets = ["bin\\godot.windows.opt.32.exe"] + ["bin\\godot.windows.opt.64.exe"] release_debug_targets = ["bin\\godot.windows.opt.tools.32.exe"] + ["bin\\godot.windows.opt.tools.64.exe"] targets = debug_targets + release_targets + release_debug_targets if not env.get("MSVS"): env["MSVS"]["PROJECTSUFFIX"] = ".vcxproj" env["MSVS"]["SOLUTIONSUFFIX"] = ".sln" env.MSVSProject( target=["#godot" + env["MSVSPROJECTSUFFIX"]], incs=env.vs_incs, srcs=env.vs_srcs, runfile=targets, buildtarget=targets, auto_build_solution=1, variant=variants, ) else: print("Could not locate Visual Studio batch file to set up the build environment. Not generating VS project.") def precious_program(env, program, sources, **args): program = env.ProgramOriginal(program, sources, **args) env.Precious(program) return program def add_shared_library(env, name, sources, **args): library = env.SharedLibrary(name, sources, **args) env.NoCache(library) return library def add_library(env, name, sources, **args): library = env.Library(name, sources, **args) env.NoCache(library) return library def add_program(env, name, sources, **args): program = env.Program(name, sources, **args) env.NoCache(program) return program def CommandNoCache(env, target, sources, command, **args): result = env.Command(target, sources, command, **args) env.NoCache(result) return result def detect_darwin_sdk_path(platform, env): sdk_name = "" if platform == "osx": sdk_name = "macosx" var_name = "MACOS_SDK_PATH" elif platform == "iphone": sdk_name = "iphoneos" var_name = "IPHONESDK" elif platform == "iphonesimulator": sdk_name = "iphonesimulator" var_name = "IPHONESDK" else: raise Exception("Invalid platform argument passed to detect_darwin_sdk_path") if not env[var_name]: try: sdk_path = subprocess.check_output(["xcrun", "--sdk", sdk_name, "--show-sdk-path"]).strip().decode("utf-8") if sdk_path: env[var_name] = sdk_path except (subprocess.CalledProcessError, OSError): print("Failed to find SDK path while running xcrun --sdk {} --show-sdk-path.".format(sdk_name)) raise def is_vanilla_clang(env): if not using_clang(env): return False try: version = subprocess.check_output([env.subst(env["CXX"]), "--version"]).strip().decode("utf-8") except (subprocess.CalledProcessError, OSError): print("Couldn't parse CXX environment variable to infer compiler version.") return False return not version.startswith("Apple") def get_compiler_version(env): """ Returns an array of version numbers as ints: [major, minor, patch]. The return array should have at least two values (major, minor). """ if not env.msvc: # Not using -dumpversion as some GCC distros only return major, and # Clang used to return hardcoded 4.2.1: # https://reviews.llvm.org/D56803 try: version = subprocess.check_output([env.subst(env["CXX"]), "--version"]).strip().decode("utf-8") except (subprocess.CalledProcessError, OSError): print("Couldn't parse CXX environment variable to infer compiler version.") return None else: # TODO: Implement for MSVC return None match = re.search("[0-9]+\.[0-9.]+", version) if match is not None: return list(map(int, match.group().split("."))) else: return None def using_gcc(env): return "gcc" in os.path.basename(env["CC"]) def using_clang(env): return "clang" in os.path.basename(env["CC"]) def show_progress(env): import sys from SCons.Script import Progress, Command, AlwaysBuild screen = sys.stdout # Progress reporting is not available in non-TTY environments since it # messes with the output (for example, when writing to a file) show_progress = env["progress"] and sys.stdout.isatty() node_count = 0 node_count_max = 0 node_count_interval = 1 node_count_fname = str(env.Dir("#")) + "/.scons_node_count" import time, math class cache_progress: # The default is 1 GB cache and 12 hours half life def __init__(self, path=None, limit=1073741824, half_life=43200): self.path = path self.limit = limit self.exponent_scale = math.log(2) / half_life if env["verbose"] and path != None: screen.write( "Current cache limit is {} (used: {})\n".format( self.convert_size(limit), self.convert_size(self.get_size(path)) ) ) self.delete(self.file_list()) def __call__(self, node, *args, **kw): nonlocal node_count, node_count_max, node_count_interval, node_count_fname, show_progress if show_progress: # Print the progress percentage node_count += node_count_interval if node_count_max > 0 and node_count <= node_count_max: screen.write("\r[%3d%%] " % (node_count * 100 / node_count_max)) screen.flush() elif node_count_max > 0 and node_count > node_count_max: screen.write("\r[100%] ") screen.flush() else: screen.write("\r[Initial build] ") screen.flush() def delete(self, files): if len(files) == 0: return if env["verbose"]: # Utter something screen.write("\rPurging %d %s from cache...\n" % (len(files), len(files) > 1 and "files" or "file")) [os.remove(f) for f in files] def file_list(self): if self.path is None: # Nothing to do return [] # Gather a list of (filename, (size, atime)) within the # cache directory file_stat = [(x, os.stat(x)[6:8]) for x in glob.glob(os.path.join(self.path, "*", "*"))] if file_stat == []: # Nothing to do return [] # Weight the cache files by size (assumed to be roughly # proportional to the recompilation time) times an exponential # decay since the ctime, and return a list with the entries # (filename, size, weight). current_time = time.time() file_stat = [(x[0], x[1][0], (current_time - x[1][1])) for x in file_stat] # Sort by the most recently accessed files (most sensible to keep) first file_stat.sort(key=lambda x: x[2]) # Search for the first entry where the storage limit is # reached sum, mark = 0, None for i, x in enumerate(file_stat): sum += x[1] if sum > self.limit: mark = i break if mark is None: return [] else: return [x[0] for x in file_stat[mark:]] def convert_size(self, size_bytes): if size_bytes == 0: return "0 bytes" size_name = ("bytes", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB") i = int(math.floor(math.log(size_bytes, 1024))) p = math.pow(1024, i) s = round(size_bytes / p, 2) return "%s %s" % (int(s) if i == 0 else s, size_name[i]) def get_size(self, start_path="."): total_size = 0 for dirpath, dirnames, filenames in os.walk(start_path): for f in filenames: fp = os.path.join(dirpath, f) total_size += os.path.getsize(fp) return total_size def progress_finish(target, source, env): nonlocal node_count, progressor with open(node_count_fname, "w") as f: f.write("%d\n" % node_count) progressor.delete(progressor.file_list()) try: with open(node_count_fname) as f: node_count_max = int(f.readline()) except: pass cache_directory = os.environ.get("SCONS_CACHE") # Simple cache pruning, attached to SCons' progress callback. Trim the # cache directory to a size not larger than cache_limit. cache_limit = float(os.getenv("SCONS_CACHE_LIMIT", 1024)) * 1024 * 1024 progressor = cache_progress(cache_directory, cache_limit) Progress(progressor, interval=node_count_interval) progress_finish_command = Command("progress_finish", [], progress_finish) AlwaysBuild(progress_finish_command)