17 lines
236 B
Bash
17 lines
236 B
Bash
#!/hint/bash
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function shasum {
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command sha256sum <<<"$1" | awk '{ print $1 }'
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}
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# once <command>
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function once {
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local flagname="__onceflag_$(shasum "$*")"
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if [[ -z ${!flagname} ]]; then
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declare -g "${flagname}"=1
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"$@"
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fi
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}
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