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@@ -0,0 +1,28 @@
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+#!/bin/sh
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+
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+if [ $# -eq 0 -o "-h" = "$1" -o "-help" = "$1" -o "--help" = "$1" ]; then
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+ cat <<EOHELP
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+Usage: $0 <secret> <manifest>
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+EOHELP
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+ exit 1
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+fi
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+
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+SECRET=$1
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+
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+manifest=$2
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+upper=$(mktemp)
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+lower=$(mktemp)
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+
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+awk "BEGIN { sep=0 }
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+ /^---\$/ { sep=1; next }
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+ { if(sep==0) print > \"$upper\";
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+ else print > \"$lower\"}" \
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+ $manifest
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+
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+ecdsasign $upper < $SECRET >> $lower
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+
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+cat $upper > $manifest
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+echo --- >> $manifest
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+cat $lower >> $manifest
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+
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+rm -f $upper $lower
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