247 lines
6.9 KiB
Python
247 lines
6.9 KiB
Python
# ***** BEGIN GPL LICENSE BLOCK *****
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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# ***** END GPL LICENSE BLOCK *****
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# <pep8 compliant>
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__all__ = (
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"build_info",
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"SOURCE_DIR",
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)
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import sys
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if not sys.version.startswith("3"):
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print("\nPython3.x needed, found %s.\nAborting!\n" %
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sys.version.partition(" ")[0])
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sys.exit(1)
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import os
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from os.path import join, dirname, normpath, abspath
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SOURCE_DIR = join(dirname(__file__), "..", "..")
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SOURCE_DIR = normpath(SOURCE_DIR)
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SOURCE_DIR = abspath(SOURCE_DIR)
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def is_c_header(filename):
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ext = os.path.splitext(filename)[1]
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return (ext in {".h", ".hpp", ".hxx", ".hh"})
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def is_c(filename):
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ext = os.path.splitext(filename)[1]
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return (ext in {".c", ".cpp", ".cxx", ".m", ".mm", ".rc", ".cc", ".inl", ".osl"})
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def is_c_any(filename):
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return os.path.s_c(filename) or is_c_header(filename)
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# copied from project_info.py
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CMAKE_DIR = "."
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def cmake_cache_var_iter():
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import re
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re_cache = re.compile(r'([A-Za-z0-9_\-]+)?:?([A-Za-z0-9_\-]+)?=(.*)$')
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with open(join(CMAKE_DIR, "CMakeCache.txt"), 'r', encoding='utf-8') as cache_file:
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for l in cache_file:
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match = re_cache.match(l.strip())
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if match is not None:
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var, type_, val = match.groups()
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yield (var, type_ or "", val)
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def cmake_cache_var(var):
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for var_iter, type_iter, value_iter in cmake_cache_var_iter():
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if var == var_iter:
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return value_iter
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return None
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def do_ignore(filepath, ignore_prefix_list):
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if ignore_prefix_list is None:
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return False
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relpath = os.path.relpath(filepath, SOURCE_DIR)
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return any([relpath.startswith(prefix) for prefix in ignore_prefix_list])
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def makefile_log():
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import subprocess
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import time
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# support both make and ninja
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make_exe = cmake_cache_var("CMAKE_MAKE_PROGRAM")
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make_exe_basename = os.path.basename(make_exe)
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if make_exe_basename.startswith(("make", "gmake")):
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print("running 'make' with --dry-run ...")
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process = subprocess.Popen([make_exe, "--always-make", "--dry-run", "--keep-going", "VERBOSE=1"],
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stdout=subprocess.PIPE,
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)
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elif make_exe_basename.startswith("ninja"):
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print("running 'ninja' with -t commands ...")
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process = subprocess.Popen([make_exe, "-t", "commands"],
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stdout=subprocess.PIPE,
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)
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while process.poll():
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time.sleep(1)
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out = process.stdout.read()
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process.stdout.close()
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print("done!", len(out), "bytes")
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return out.decode("utf-8", errors="ignore").split("\n")
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def build_info(use_c=True, use_cxx=True, ignore_prefix_list=None):
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makelog = makefile_log()
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source = []
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compilers = []
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if use_c:
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compilers.append(cmake_cache_var("CMAKE_C_COMPILER"))
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if use_cxx:
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compilers.append(cmake_cache_var("CMAKE_CXX_COMPILER"))
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print("compilers:", " ".join(compilers))
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fake_compiler = "%COMPILER%"
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print("parsing make log ...")
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for line in makelog:
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args = line.split()
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if not any([(c in args) for c in compilers]):
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continue
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# join args incase they are not.
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args = ' '.join(args)
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args = args.replace(" -isystem", " -I")
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args = args.replace(" -D ", " -D")
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args = args.replace(" -I ", " -I")
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for c in compilers:
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args = args.replace(c, fake_compiler)
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args = args.split()
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# end
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# remove compiler
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args[:args.index(fake_compiler) + 1] = []
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c_files = [f for f in args if is_c(f)]
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inc_dirs = [f[2:].strip() for f in args if f.startswith('-I')]
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defs = [f[2:].strip() for f in args if f.startswith('-D')]
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for c in sorted(c_files):
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if do_ignore(c, ignore_prefix_list):
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continue
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source.append((c, inc_dirs, defs))
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# make relative includes absolute
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# not totally essential but useful
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for i, f in enumerate(inc_dirs):
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if not os.path.isabs(f):
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inc_dirs[i] = os.path.abspath(os.path.join(CMAKE_DIR, f))
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# safety check that our includes are ok
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for f in inc_dirs:
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if not os.path.exists(f):
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raise Exception("%s missing" % f)
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print("done!")
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return source
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def build_defines_as_source():
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"""
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Returns a string formatted as an include:
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'#defines A=B\n#define....'
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"""
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import subprocess
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# works for both gcc and clang
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cmd = (cmake_cache_var("CMAKE_C_COMPILER"), "-dM", "-E", "-")
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return subprocess.Popen(cmd,
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stdout=subprocess.PIPE,
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stdin=subprocess.DEVNULL,
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).stdout.read().strip().decode('ascii')
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def build_defines_as_args():
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return [("-D" + "=".join(l.split(maxsplit=2)[1:]))
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for l in build_defines_as_source().split("\n")
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if l.startswith('#define')]
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# could be moved elsewhere!, this just happens to be used by scripts that also
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# use this module.
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def queue_processes(process_funcs, job_total=-1):
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""" Takes a list of function arg pairs, each function must return a process
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"""
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if job_total == -1:
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import multiprocessing
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job_total = multiprocessing.cpu_count()
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del multiprocessing
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if job_total == 1:
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for func, args in process_funcs:
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sys.stdout.flush()
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sys.stderr.flush()
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process = func(*args)
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process.wait()
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else:
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import time
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processes = []
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for func, args in process_funcs:
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# wait until a thread is free
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while 1:
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processes[:] = [p for p in processes if p.poll() is None]
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if len(processes) <= job_total:
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break
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else:
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time.sleep(0.1)
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sys.stdout.flush()
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sys.stderr.flush()
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processes.append(func(*args))
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def main():
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if not os.path.exists(join(CMAKE_DIR, "CMakeCache.txt")):
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print("This script must run from the cmake build dir")
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return
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for s in build_info():
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print(s)
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if __name__ == "__main__":
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main()
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