34 lines
1.1 KiB
Python
34 lines
1.1 KiB
Python
import os, hashlib
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# This file contains various utility functions used by the init and build scripts
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# Compute the root build and script directory as relative to this file
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script_dir = os.path.realpath(os.path.join(__file__, '..'))
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root_dir = os.path.realpath(os.path.join(script_dir, '..'))
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def runcmd(cmd):
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"""Executes a string command in the shell"""
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print(cmd)
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result = os.system(cmd)
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if result != 0:
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raise Exception(cmd + ' returned ' + str(result))
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def mkdir(dir):
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"""Makes a directory if it doesn't exist"""
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if not os.path.exists(dir):
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print('mkdir -p ' + dir)
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return os.makedirs(dir)
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def md5_file(filename):
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"""Builds a hex md5 hash of the given file"""
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md5 = hashlib.md5()
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with open(filename, 'rb') as f:
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for chunk in iter(lambda: f.read(128 * md5.block_size), b''):
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md5.update(chunk)
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return md5.hexdigest()
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def configure_environment():
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"""Configures temporary environment variables required by Chromium's build"""
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depot_tools_path = os.path.join(root_dir, 'depot_tools')
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os.environ['PATH'] = depot_tools_path + os.pathsep + os.environ['PATH']
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