Revision 9226
Added by Aaron Marcuse-Kubitza about 11 years ago
| lib/sh/util.sh | ||
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shopt -s expand_aliases |
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#### vars |
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set_var() { eval "$1"'="$2"'; }
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set_inv() { set_var no_"$1" "$(test "${!1}" || echo 1)"; }
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# usage: local var=...; local_inv |
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alias local_inv='declare "no_$var=$(test "${!var}" || echo 1)"'
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get_prefix_vars() { : "${prefix:?}"; eval echo '${!'$prefix'*}'; }
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# usage: local prefix=..._; import_vars |
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# when used inside another alias 2+ levels deep, *must* be run inside a function |
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alias import_vars="$(cat <<'EOF' |
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: "${prefix:?}"
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declare src_var dest_var |
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for src_var in $(get_prefix_vars); do |
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dest_var="${src_var#$prefix}"
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declare "$dest_var=${!src_var}"; echo_vars "$dest_var"
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done |
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EOF |
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)" |
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#### aliases |
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unalias() { builtin unalias "$@" 2>&- || true; } # no error if undefined
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if test "$explicit_errors_only"; then disable_logging; fi |
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#### vars |
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set_var() { eval "$1"'="$2"'; }
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set_inv() { set_var no_"$1" "$(test "${!1}" || echo 1)"; }
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# usage: local var=...; local_inv |
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alias local_inv='declare "no_$var=$(test "${!var}" || echo 1)"'
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get_prefix_vars() { : "${prefix:?}"; eval echo '${!'$prefix'*}'; }
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# usage: local prefix=..._; import_vars |
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# when used inside another alias 2+ levels deep, *must* be run inside a function |
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alias import_vars="$(cat <<'EOF' |
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: "${prefix:?}"
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declare src_var dest_var |
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for src_var in $(get_prefix_vars); do |
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dest_var="${src_var#$prefix}"
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declare "$dest_var=${!src_var}"; echo_vars "$dest_var"
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done |
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EOF |
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)" |
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#### functions |
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func_exists() { declare -f "$1" >/dev/null; }
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Also available in: Unified diff
lib/sh/util.sh: moved vars section to beginning so other sections can use it (it does not contain logging statements, so it doesn't need to be after verbose output)