> I also considered trying to bump the "set -x" output descriptor to "9". > That just moves the problem around, but presumably scripts are less > likely to go that high. :) > > It would also be possible to pick something insanely high, like "999". > Many shells choke on descriptors higher than 9, but since the issue is > related to BASH_XTRACEFD, we could make it a bash-only thing. I don't > know if it's worth the trouble. I hate leaving a subtle "don't use > descriptor 4 in a subshell or your script will break" hand-grenade like > this lying around, but we do seem to have only one instance of it over > the whole test suite.
I would imagine that a higher fd for BASH_XTRACEFD would be less explosive than requiring the tests to skip the low number 4. (It is not *that* low. In e.g. git-submodule.sh we make use of 3 in cmd_foreach, not needing more.) Thanks, Stefan
