3dbdfbc06f
Silently recover if REDO_CHEATFDS file descriptors are closed, because they aren't completely essential and MAKEFLAGS-related warnings already get printed if all file descriptors have been closed. If MAKEFLAGS --jobserver-auth flags are closed, improve the error message so that a) it's a normal error instead of an exception and b) we link to documentation about why it happens. Also write some more detailed documentation about what's going on here.
12 lines
430 B
Python
12 lines
430 B
Python
import subprocess, sys, os
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# subprocess.call(close_fds=True) is unfortunately not a good idea,
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# because some versions (Debian's python version?) try to close inordinately
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# many file descriptors, like 0..1000000, which takes a very long time.
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#
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# We happen to know that redo doesn't need such huge fd values, so we'll
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# just cheat and use a smaller range.
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os.closerange(3, 1024)
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rv = subprocess.call(sys.argv[1:])
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sys.exit(rv)
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