Revision 9129
Added by Aaron Marcuse-Kubitza about 11 years ago
| lib/sh/util.sh | ||
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#### streams |
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fd_exists () { (: <&"$1") 2>/dev/null; }
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fd_exists() { (: <&"$1") 2>/dev/null; }
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require_fd_not_exists() # usage: require_fd_not_exists fd || return 0 |
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{ ! fd_exists "$1" || type=info die "fd $1 already exists, skipping"; }
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set_fd () # usage: dest=fd dir='[<>]' src=fd [noclobber=1] set_fd
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set_fd() # usage: dest=fd dir='[<>]' src=fd [noclobber=1] set_fd |
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{
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inc_log_level; echo_func |
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: "${dest:?}" "${dir:?}" "${src:?}"
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| ... | ... | |
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echo_eval exec "$dest$dir&$src" |
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} |
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shadow_fd () # usage: prefix=# src=fd dir='[<>]' shadow_fd
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shadow_fd() # usage: prefix=# src=fd dir='[<>]' shadow_fd |
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{
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echo_minor_func |
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: "${prefix:?}" "${src:?}" "${dir:?}"
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| ... | ... | |
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# convention: use fd 10/11/12 for command-specific alternate stdin/stdout/stderr |
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set_global_fds ()
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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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{
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Also available in: Unified diff
*{.sh,run}: removed extra space between function name and ()