3209316856
We can also avoid forking altogether if should_build() returns false. This doesn't seem to result in any noticeable speedup, but it's cleaner at least.
75 lines
2.2 KiB
Python
Executable file
75 lines
2.2 KiB
Python
Executable file
#!/usr/bin/python
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import sys, os
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import options, jwack, atoi
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optspec = """
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redo [targets...]
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--
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j,jobs= maximum number of jobs to build at once
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d,debug print dependency checks as they happen
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v,verbose print commands as they are read from .do files (variables intact)
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x,xtrace print commands as they are executed (variables expanded)
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k,keep-going keep going as long as possible even if some targets fail
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shuffle randomize the build order to find dependency bugs
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debug-locks print messages about file locking (useful for debugging)
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"""
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o = options.Options('redo', optspec)
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(opt, flags, extra) = o.parse(sys.argv[1:])
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targets = extra or ['all']
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if opt.debug:
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os.environ['REDO_DEBUG'] = str(opt.debug or 0)
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if opt.verbose:
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os.environ['REDO_VERBOSE'] = '1'
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if opt.xtrace:
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os.environ['REDO_XTRACE'] = '1'
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if opt.keep_going:
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os.environ['REDO_KEEP_GOING'] = '1'
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if opt.shuffle:
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os.environ['REDO_SHUFFLE'] = '1'
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if opt.debug_locks:
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os.environ['REDO_DEBUG_LOCKS'] = '1'
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is_root = not os.environ.get('REDO', '')
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if is_root:
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# toplevel call to redo
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exenames = [os.path.abspath(sys.argv[0]), os.path.realpath(sys.argv[0])]
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if exenames[0] == exenames[1]:
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exenames = [exenames[0]]
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dirnames = [os.path.dirname(p) for p in exenames]
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os.environ['PATH'] = ':'.join(dirnames) + ':' + os.environ['PATH']
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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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os.environ['REDO'] = os.path.abspath(sys.argv[0])
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import vars, state, builder
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from helpers import err
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if is_root:
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state.init()
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try:
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j = atoi.atoi(opt.jobs or 1)
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if j < 1 or j > 1000:
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err('invalid --jobs value: %r\n' % opt.jobs)
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jwack.setup(j)
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try:
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retcode = builder.main(targets, lambda t: True)
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finally:
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jwack.force_return_tokens()
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sys.exit(retcode)
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except KeyboardInterrupt:
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sys.exit(200)
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