4cade/bin/buildokvs.sh
2021-10-23 01:36:04 -04:00

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#!/bin/bash
# make temp file with just the key/value pairs (strip blank lines, comments, eof marker)
records=$(mktemp)
awk '!/^$|^#|^\[/' > "$records"
# make temp assembly source file that represents the binary OKVS data structure
source=$(mktemp)
(echo "*=0" # dummy program counter for assembler
echo "!le16 $(wc -l <"$records"), 0" # OKVS header
while IFS="=" read -r key value; do
echo "!byte ${#key}+${#value}+3" # OKVS record length
echo "!byte ${#key}" # OKVS key length
echo "!text \"$key\"" # OKVS key
echo "!byte ${#value}" # OKVS value length
echo "!text \"$value\"" # OKVS value
done < "$records") > "$source"
# assemble temp source file into binary OKVS data structure, then output that
out=$(mktemp)
acme -o "$out" "$source"
cat "$out"
# clean up
rm "$out"
rm "$source"
rm "$records"