Skip to content

Instantly share code, notes, and snippets.

@nexus166
Last active March 11, 2022 04:21
Show Gist options
  • Save nexus166/62d6c71e2ded8c593a58756600b1ae93 to your computer and use it in GitHub Desktop.
Save nexus166/62d6c71e2ded8c593a58756600b1ae93 to your computer and use it in GitHub Desktop.
convert bash arrays to json
#!/usr/bin/env bash
dict2json() {
local _data=""
trap 'if [[ -n "${_data}" ]]; then printf "{%s}" "${_data%?}" | jq -arc .; fi' RETURN
case "${#@}" in
0)
return
;;
1)
local _copy_decl="$(declare -p "${1}" 2>/dev/null)"
case "${_copy_decl}" in
"declare -a"*" ${1}="*)
_copy_decl="$(sed "s/^declare -a.* ${1}=//" <<<"${_copy_decl}")"
if ! eval "local -a _dict=${_copy_decl}"; then return 2; fi
for key in "${!_dict[@]}"; do
_data+="$(printf '"%s": %s,' "${key}" "$(printf '%s' "${_dict["${key}"]}" | jq -aMRs .)")"
done
;;
"declare -A"*" ${1}="*)
_copy_decl="$(sed "s/^declare -A.* ${1}=//" <<<"${_copy_decl}")"
if ! eval "local -A _dict=${_copy_decl}"; then return 2; fi
for key in "${!_dict[@]}"; do
_data+="$(printf '"%s": %s,' "${key}" "$(printf '%s' "${_dict["${key}"]}" | jq -aMRs .)")"
done
;;
*)
return 127
;;
esac
;;
*)
local -a _arg_dict=("${@}")
for _i in $(seq 1 "${#@}"); do
if [[ $((_i % 2)) -eq 0 ]]; then
continue
fi
local _key="${_arg_dict["$((_i - 1))"]}"
local _val="${_arg_dict["${_i}"]}"
_data+="$(printf '"%s": %s,' "${_key}" "$(printf '%s' "${_val}" | jq -aMRs .)")"
done
;;
esac
}
declare -fx dict2json
if [[ ${#@} -gt 0 ]]; then
dict2json "${@}"
fi
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment