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52 lines
1.5 KiB
Python
52 lines
1.5 KiB
Python
# Copyright 2018 Ryan Dahl <ry@tinyclouds.org>
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# All rights reserved. MIT License.
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import os
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import subprocess
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def run(args, quiet=False, envs={}):
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if not quiet:
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print " ".join(args)
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env = os.environ.copy()
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for key in envs.keys():
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env[key] = envs[key]
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if os.name == "nt":
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# Run through shell to make .bat/.cmd files work.
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args = ["cmd", "/c"] + args
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subprocess.check_call(args, env=env)
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def remove_and_symlink(target, name, target_is_dir=False):
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try:
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# On Windows, directory symlink can only be removed with rmdir().
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if os.name == "nt" and os.path.isdir(name):
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os.rmdir(name)
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else:
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os.unlink(name)
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except:
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pass
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symlink(target, name, target_is_dir)
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def symlink(target, name, target_is_dir=False):
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if os.name == "nt":
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import ctypes
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CreateSymbolicLinkW = ctypes.windll.kernel32.CreateSymbolicLinkW
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CreateSymbolicLinkW.restype = ctypes.c_ubyte
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CreateSymbolicLinkW.argtypes = (ctypes.c_wchar_p, ctypes.c_wchar_p,
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ctypes.c_uint32)
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flags = 0x02 # SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE
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if (target_is_dir):
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flags |= 0x01 # SYMBOLIC_LINK_FLAG_DIRECTORY
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if not CreateSymbolicLinkW(name, target, flags):
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raise ctypes.WinError()
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else:
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os.symlink(target, name)
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def touch(fname):
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if os.path.exists(fname):
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os.utime(fname, None)
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else:
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open(fname, 'a').close()
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