73 lines
2.2 KiB
Python
73 lines
2.2 KiB
Python
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# Copyright 2015 the V8 project authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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from __future__ import print_function
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import sys
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import os
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import itertools
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import re
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try:
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from exceptions import RuntimeError
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except ImportError:
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pass
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def GetNinjaOutputDirectory(v8_root, configuration=None):
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"""Returns <v8_root>/<output_dir>/(Release|Debug|<other>).
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The configuration chosen is the one most recently generated/built, but can be
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overriden via the <configuration> parameter. Detects a custom output_dir
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specified by GYP_GENERATOR_FLAGS."""
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output_dirs = []
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generator_flags = os.getenv('GYP_GENERATOR_FLAGS', '').split(' ')
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for flag in generator_flags:
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name_value = flag.split('=', 1)
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if (len(name_value) == 2 and name_value[0] == 'output_dir' and
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os.path.isdir(os.path.join(v8_root, name_value[1]))):
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output_dirs = [name_value[1]]
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if configuration:
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output_dir = 'out' if len(output_dirs) == 0 else output_dirs[-1]
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return os.path.join(os.path.join(v8_root, output_dir), configuration)
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if not output_dirs:
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for f in os.listdir(v8_root):
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if re.match(r'out(\b|_)', f):
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if os.path.isdir(os.path.join(v8_root, f)):
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output_dirs.append(f)
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def generate_paths():
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for out_dir in output_dirs:
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out_path = os.path.join(v8_root, out_dir)
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for config in os.listdir(out_path):
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path = os.path.join(out_path, config)
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if os.path.exists(os.path.join(path, 'build.ninja')):
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yield path
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def approx_directory_mtime(path):
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# This is a heuristic; don't recurse into subdirectories.
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paths = [path] + [os.path.join(path, f) for f in os.listdir(path)]
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return max(filter(None, [safe_mtime(p) for p in paths]))
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def safe_mtime(path):
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try:
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return os.path.getmtime(path)
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except OSError:
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return None
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try:
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return max(generate_paths(), key=approx_directory_mtime)
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except ValueError:
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raise RuntimeError('Unable to find a valid ninja output directory.')
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if __name__ == '__main__':
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if len(sys.argv) != 2:
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raise RuntimeError('Expected a single path argument.')
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print(GetNinjaOutputDirectory(sys.argv[1]))
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