Revision 9717
Added by Aaron Marcuse-Kubitza over 11 years ago
| lib/sh/util.sh | ||
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| 535 | 535 |
set_fds "$1" |
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} |
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filter_fd() # usage: (fd=# filter_fd filter_cmd...; with filter...) |
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# useful e.g. to filter logging output or highlight errors |
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{
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echo_func; kw_params fd; : "${fd?}"
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set_fds "$fd>" >(pipe_delay; redirs=(">&$fd" "${redirs[@]}"); redir "$@")
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pipe_delay; pipe_delay # wait for >()'s pipe_delay and initial logging |
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} |
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# convention: use fd 40/41/42 for command-specific alternate stdin/stdout/stderr |
| 539 | 547 |
# do NOT use 1x, which are used by eval (which is used by set_fds()) |
| 540 | 548 |
# do NOT use 2x, which are used as global stdin/stdout/stderr |
Also available in: Unified diff
lib/sh/util.sh: added filter_fd(), which encapsulates the use of >() process substitution for filtering an fd other than stdout (yes, this is possible without lots of 3>&1 1>&2 2>&3 redirections!). this can be useful e.g. to filter logging output or highlight errors.