diff options
Diffstat (limited to 'SConstruct')
| -rw-r--r-- | SConstruct | 140 |
1 files changed, 140 insertions, 0 deletions
@@ -7,6 +7,8 @@ from pathlib import Path # Neccessary to have our own build options without errors SAVED_ARGUMENTS = ARGUMENTS.copy() ARGUMENTS.pop('intermediate_delete', True) +ARGUMENTS.pop('progress', True) +ARGUMENTS.pop('verbose', True) env = SConscript("godot-cpp/SConstruct") @@ -28,9 +30,11 @@ if profile: customs.append(profile + ".py") opts = Variables(customs, ARGUMENTS) +opts.Add(BoolVariable("verbose", "Enable verbose output for the compilation", False)) opts.Add( BoolVariable("intermediate_delete", "Enables automatically deleting unassociated intermediate binary files.", True) ) +opts.Add(BoolVariable("progress", "Show a progress indicator during compilation", True)) opts.Update(env) Help(opts.GenerateHelpText(env)) @@ -47,6 +51,138 @@ def GlobRecursive(pattern, nodes=['.']): results += Glob(str(node) + '/' + pattern, source=True) return results +# Copied from https://github.com/godotengine/godot/blob/c3b0a92c3cd9a219c1b1776b48c147f1d0602f07/methods.py#L1049-L1172 +def show_progress(env): + import sys + import glob + 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 + try: + with open(node_count_fname, "w") as f: + f.write("%d\n" % node_count) + progressor.delete(progressor.file_list()) + except Exception: + pass + + try: + with open(node_count_fname) as f: + node_count_max = int(f.readline()) + except Exception: + 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) + +scons_cache_path = os.environ.get("SCONS_CACHE") +if scons_cache_path != None: + CacheDir(scons_cache_path) + print("Scons cache enabled... (path: '" + scons_cache_path + "')") + # For the reference: # - CCFLAGS are compilation flags shared between C and C++ # - CFLAGS are for C-specific compilation flags @@ -95,4 +231,8 @@ else: source=sources, ) +if "env" in locals(): + # FIXME: This method mixes both cosmetic progress stuff and cache handling... + show_progress(env) + Default(library) |