7dd63efb37
If a depends on b which depends on a, redo would just freeze. Now it aborts with a somewhat helpful error message. [Updated by apenwarr for coding style and to add a test.]
38 lines
1.3 KiB
Python
38 lines
1.3 KiB
Python
import sys, os
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def init(targets):
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if not os.environ.get('REDO'):
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# toplevel call to redo
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if len(targets) == 0:
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targets.append('all')
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exenames = [os.path.abspath(sys.argv[0]),
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os.path.realpath(sys.argv[0])]
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dirnames = [os.path.dirname(p) for p in exenames]
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trynames = ([os.path.abspath(p+'/../lib/redo') for p in dirnames] +
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[p+'/redo-sh' for p in dirnames] +
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dirnames)
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seen = {}
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dirs = []
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for k in trynames:
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if not seen.get(k):
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seen[k] = 1
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dirs.append(k)
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os.environ['PATH'] = ':'.join(dirs) + ':' + os.environ['PATH']
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os.environ['REDO'] = os.path.abspath(sys.argv[0])
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if not os.environ.get('REDO_BASE'):
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base = os.path.commonprefix([os.path.abspath(os.path.dirname(t))
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for t in targets] + [os.getcwd()])
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bsplit = base.split('/')
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for i in range(len(bsplit)-1, 0, -1):
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newbase = '/'.join(bsplit[:i])
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if os.path.exists(newbase + '/.redo'):
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base = newbase
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break
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os.environ['REDO_BASE'] = base
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os.environ['REDO_STARTDIR'] = os.getcwd()
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import state
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state.init()
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os.environ['REDO_LOCKS'] = os.environ.get('REDO_LOCKS', '')
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