3ef2bd7300
Just check it once after running a subprocess: that's the only way it ought to be able to disappear (ie. in a 'make clean' setup).
64 lines
1.3 KiB
Python
64 lines
1.3 KiB
Python
import sys, os, errno, fcntl
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import vars
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def unlink(f):
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"""Delete a file at path 'f' if it currently exists.
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Unlike os.unlink(), does not throw an exception if the file didn't already
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exist.
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"""
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try:
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os.unlink(f)
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except OSError, e:
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if e.errno == errno.ENOENT:
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pass # it doesn't exist, that's what you asked for
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def log_(s):
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sys.stdout.flush()
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if vars.DEBUG_PIDS:
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sys.stderr.write('%d %s' % (os.getpid(), s))
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else:
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sys.stderr.write(s)
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sys.stderr.flush()
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def _clog(s):
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log_('\x1b[32mredo %s\x1b[1m%s\x1b[m' % (vars.DEPTH, s))
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def _bwlog(s):
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log_('redo %s%s' % (vars.DEPTH, s))
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def _cerr(s):
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log_('\x1b[31mredo: %s\x1b[1m%s\x1b[m' % (vars.DEPTH, s))
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def _bwerr(s):
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log_('redo: %s%s' % (vars.DEPTH, s))
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if os.isatty(2):
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log = _clog
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err = _cerr
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else:
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log = _bwlog
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err = _bwerr
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def debug(s):
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if vars.DEBUG >= 1:
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log_('redo: %s%s' % (vars.DEPTH, s))
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def debug2(s):
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if vars.DEBUG >= 2:
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log_('redo: %s%s' % (vars.DEPTH, s))
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def debug3(s):
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if vars.DEBUG >= 3:
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log_('redo: %s%s' % (vars.DEPTH, s))
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def close_on_exec(fd, yes):
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fl = fcntl.fcntl(fd, fcntl.F_GETFD)
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fl &= ~fcntl.FD_CLOEXEC
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if yes:
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fl |= fcntl.FD_CLOEXEC
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fcntl.fcntl(fd, fcntl.F_SETFD, fl)
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