Revision 9282
Added by Aaron Marcuse-Kubitza about 11 years ago
| lib/sh/util.sh | ||
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# convention: use fd 10/11/12 for command-specific alternate stdin/stdout/stderr |
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setup_log_fd() # view logging output at verbosity >= 5 |
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{
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log++; log++; log++; echo_func; log++ |
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fd_set_default '30>&2' || true # stdlog |
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log_fd=30 # stdlog |
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} |
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setup_log_fd |
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set_global_fds() |
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# allows commands to access global stdin/stdout/stderr using fd 20/21/22 |
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# this works even when /dev/tty isn't available |
| ... | ... | |
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fd_set_default '20<&0' || true |
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fd_set_default '21>&1' || true |
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fd_set_default '22>&2' || true |
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fd_set_default '30>&2' || true # stdlog |
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} |
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set_global_fds |
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err_fd=22 # global stderr |
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log_fd=30 # stdlog |
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# usage: explicit_errors_only=1 script... |
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# show only explicitly-displayed errors (which have been redirected to fd 22) |
Also available in: Unified diff
lib/sh/util.sh: set_global_fds(): moved stdlog fd setup to separate setup_log_fd() function, which runs at a much higher log_level (5 instead of 3). because the stdlog fd setup statements themselves are logged to fd 2 (because fd 30 is not yet open), you normally don't want to display these, if you are using fd 2 for errors only and fd 30 for logging.