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#!/bin/bash
set -e
# Logging
TASKS=()
_last() {
echo -n "${TASKS[0]}"
}
start() {
for n in "${TASKS[@]}"; do
echo -n ' '
done
TASKS=(
"$@"
"${TASKS[@]}"
)
echo -e "\x1b[0;1;34m@\x1b[0;34m $@\x1b[0m"
}
complete() {
last="$(_last)"
if [[ "$NOSHIFT" != 1 ]]; then
TASKS=(
"${TASKS[@]:1}"
)
fi
if [[ "$1" == "" ]] && [[ "$last" != "" ]]; then
NOSHIFT=1 complete "$last"
else
for n in "${TASKS[@]}"; do
echo -n ' '
done
echo -e "\x1b[0;1;32m+\x1b[0;32m $@\x1b[0m"
fi
}
err() {
last="$(_last)"
if [[ "$NOSHIFT" != 1 ]]; then
TASKS=(
"${TASKS[@]:1}"
)
fi
if [[ "$1" == "" ]] && [[ "$last" != "" ]]; then
NOSHIFT=1 err "$last"
else
for n in "${TASKS[@]}"; do
echo -n ' '
done
echo -e "\x1b[0;1;31m!\x1b[0;31m $@\x1b[0m" 1>&2;
fi
}
info() {
echo -e "\x1b[0;1;94mi\x1b[0;94m $@\x1b[0m" 1>&2;
}
# Bash Array Joiner
join_array() {
printf -v __ "${1//%/%%}%s" "${@:2}"
echo -n "${__:${#1}}"
}
# jq abstraction layer
# Determines where to store the JSON - if the value is `IN_MEM`, then the value is kept in the JQ_BUFFER variable
JSON_STORAGE_LOCATION="IN_MEM"
JQ_BUFFER=""
JQ_BUFFER_OUTPUT_FILE=""
JQ_TRANSACTION=()
JQ_IS_DOING_TRANSACTION=false
JQ_POSITIONALS=()
JQ_POSITIONAL_IDX=1
ARG=null
jsettempstorage() {
newstorage="${1:-"IN_MEM"}"
if [[ "$newstorage" == "$JSON_STORAGE_LOCATION" ]]; then return 0; fi
if [[ "$JSON_STORAGE_LOCATION" == "IN_MEM" ]]; then
touch "$newstorage"
<<< "$JQ_BUFFER" > "$newstorage"
JQ_BUFFER=""
elif [[ "$newstorage" == "IN_MEM" ]]; then
JQ_BUFFER="$(<"$JSON_STORAGE_LOCATION")"
rm "$JSON_STORAGE_LOCATION"
else
mv "$JSON_STORAGE_LOCATION" "$newstorage"
fi
JSON_STORAGE_LOCATION="$newstorage"
}
# Reads the storage buffer
jreadbuffer() {
if [[ "$JSON_STORAGE_LOCATION" == "IN_MEM" ]]; then
echo -n "$JQ_BUFFER"
else
cat "$JSON_STORAGE_LOCATION"
fi
}
# Writes the storage buffer
jwritebuffer() {
if [[ "$JSON_STORAGE_LOCATION" == "IN_MEM" ]]; then
JQ_BUFFER="$@"
else
echo -n "$@" > "$JSON_STORAGE_LOCATION"
fi
}
# Creates a new jq blank file
jnew() {
JQ_BUFFER_OUTPUT_FILE="$(realpath "${1:-"/dev/null"}")"
jwritebuffer "${2:-"{}"}"
}
# Loads an existing jq file, falling back to creating a blank one if it doesnt exist
jload() {
JQ_BUFFER_OUTPUT_FILE="$(realpath "${1:-"/dev/null"}")"
if [[ -f "$JQ_BUFFER_OUTPUT_FILE" ]]; then
jwritebuffer "$(cat $JQ_BUFFER_OUTPUT_FILE)"
else
jwritebuffer "${2:-"{}"}"
fi
}
# SQL-like Transaction Logic
jtransaction() {
if [[ "$JQ_IS_DOING_TRANSACTION" == "true" ]]; then
err "Already performing transaction!"
return 1
fi
JQ_IS_DOING_TRANSACTION=true
JQ_TRANSACTION=()
}
jabort() {
if [[ "$JQ_IS_DOING_TRANSACTION" == "false" ]]; then
err "No pending transaction!"
return 1
fi
JQ_IS_DOING_TRANSACTION=false
JQ_TRANSACTION=()
}
jcommit() {
if [[ "$JQ_IS_DOING_TRANSACTION" == "false" ]]; then
err "No pending transaction!"
return 1
fi
JQ_IS_DOING_TRANSACTION=false
# Incase it's empty:
JQ_TRANSACTION+=(
"."
)
# As we are no longer in a transaction, jrun will run the pipe-delimited query
jrun "$(join_array ' | ' "${JQ_TRANSACTION[@]}")"
# We can, after running, clear the transaction
JQ_TRANSACTION=()
}
# Loads a string that jq can positionally access later
jsetasset() {
ARG="(\$ARGS.positional[$JQ_POSITIONAL_IDX] | @base64d)"
JQ_POSITIONALS+=(
"$(base64 -w 0 <<< "$@")"
);
((JQ_POSITIONAL_IDX=JQ_POSITIONAL_IDX+1))
}
jgetassetref() {
echo -n "$ARG"
ARG=null
}
# Perform a jq write operation
jrun() {
if [[ "$JQ_IS_DOING_TRANSACTION" == "true" ]]; then
# If we're in a transaction, just push it to the list
JQ_TRANSACTION+=(
"($@)"
)
else
# Otherwise, perform the operation and write to the buffer
if [[ "$JSON_STORAGE_LOCATION" == "IN_MEM" ]]; then
JQ_BUFFER="$(jq -Mc "$@" --args owo ${JQ_POSITIONALS[@]} <<< "$JQ_BUFFER")"
else
jq -Mc "$@" --args owo ${JQ_POSITIONALS[@]} < "$JSON_STORAGE_LOCATION" > "$JSON_STORAGE_LOCATION~"
mv "$JSON_STORAGE_LOCATION~" "$JSON_STORAGE_LOCATION"
fi
JQ_POSITIONALS=()
JQ_POSITIONAL_IDX=1
fi
}
# Perform a jq write operation using a temp file
_jrun_file() {
if [[ "$JQ_IS_DOING_TRANSACTION" == "true" ]]; then
# Does not work for transactions
err "Cannot use _jrun_file in transaction!";
return 1;
else
# Otherwise, perform the operation and write to the buffer
if [[ "$JSON_STORAGE_LOCATION" == "IN_MEM" ]]; then
echo -n "$@" > /tmp/.operation.jq
JQ_BUFFER="$(jq -Mcf /tmp/.operation.jq --args owo ${JQ_POSITIONALS[@]} <<< "$JQ_BUFFER")"
rm /tmp/.operation.jq
else
echo -n "$@" > /tmp/.operation.jq
jq -Mcf /tmp/.operation.jq --args owo ${JQ_POSITIONALS[@]} < "$JSON_STORAGE_LOCATION" > "$JSON_STORAGE_LOCATION~"
rm /tmp/.operation.jq
mv "$JSON_STORAGE_LOCATION~" "$JSON_STORAGE_LOCATION"
fi
JQ_POSITIONALS=()
JQ_POSITIONAL_IDX=1
fi
}
jsave() {
if [[ "$JQ_IS_DOING_TRANSACTION" == "true" ]]; then
err "There is a pending transaction."
return 1
fi
jreadbuffer | jq -M . > "${1:-"$JQ_BUFFER_OUTPUT_FILE"}"
}
escape_str() {
jq '.=$ARGS.positional[0]' --args "$@" -M <<< '""'
}
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