35 lines
978 B
Python
Executable file
35 lines
978 B
Python
Executable file
#!/usr/bin/python
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import sys, os
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import state
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from log import err
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if len(sys.argv[1:]) < 2:
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err('%s: at least 2 arguments expected.\n' % sys.argv[0])
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sys.exit(1)
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target = sys.argv[1]
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deps = sys.argv[2:]
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for d in deps:
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assert(d != target)
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me = state.File(name=target)
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# Build the known dependencies of our primary target. This *does* require
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# grabbing locks.
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os.environ['REDO_NO_OOB'] = '1'
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argv = ['redo-ifchange'] + deps
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rv = os.spawnvp(os.P_WAIT, argv[0], argv)
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if rv:
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sys.exit(rv)
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# We know our caller already owns the lock on target, so we don't have to
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# acquire another one; tell redo-ifchange about that. Also, REDO_NO_OOB
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# persists from up above, because we don't want to do OOB now either.
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# (Actually it's most important for the primary target, since it's the one
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# who initiated the OOB in the first place.)
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os.environ['REDO_UNLOCKED'] = '1'
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argv = ['redo-ifchange', target]
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rv = os.spawnvp(os.P_WAIT, argv[0], argv)
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if rv:
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sys.exit(rv)
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