simplify proxy-script — radicle-tui

The proxy script assumes that passed arguments are safe from triggering carious forms of shell expansion, and uses needless bash constructs.

This patch simplifies the shell code to always quote variables, and to use only plain shell constructs - and the result is arguably easier to read as an added bonus.

 #!/bin/bash
 #!/bin/sh
 extract_operation() {
     local op=$(echo $1 | jq '.operation')
     op=${op//\"/""}
     echo "$op"
     echo "$1" | jq --raw-output '.operation'
 }
 extract_id() {
     local ids=$(echo $1 | jq '.ids')
     local id=$(echo $ids | jq '.[0]')
     id=${id//\"/""}
     echo "$id"
     echo "$1" | jq --raw-output '.ids[0]'
 }
 if [[ "$1" == "patch" ]] || [[ "$1" == "issue" ]] || [[ "$1" == "inbox" ]]; then
     if [[ -n "$2" ]]; then
         if [[ "$2" == "--tui" ]]; then
             # Run TUI
             { out=$(rad-tui $1 select 2>&1 >&3 3>&-); } 3>&1
             if [[ "$out" == "" ]]; then
                 exit 1
             fi
             op=$(extract_operation $out)
             id=$(extract_id $out)
             rad $1 $op $id
         else
             # Run TUI
             args="--mode id"
             { out=$(rad-tui $1 select $args 2>&1 >&3 3>&-); } 3>&1
             id=$(extract_id $out)
             args=("$@")
             rad $1 $2 $id ${args[@]:2}
         fi
     else
         rad $@
     fi
 else
     rad $@
 fi
 \ No newline at end of file
 case "$1" in
     patch|issue|inbox)
         case "$2" in
             '')
                 rad "$@"
                 ;;
             --tui)
                 # Run TUI
                 { out=$(rad-tui "$1" select 2>&1 >&3 3>&-); } 3>&1
                 if [ -z "$out" ]; then
                     exit 1
                 fi
                 op=$(extract_operation "$out")
                 id=$(extract_id "$out")
                 rad "$1" "$op" "$id"
                 ;;
             *)
                 # Run TUI
                 { out=$(rad-tui "$1" select --mode id 2>&1 >&3 3>&-); } 3>&1
                 id=$(extract_id "$out")
                 shift 2
                 rad "$1" "$2" "$id" "$@"
                 ;;
         esac
         ;;
     *)
         rad "$@"
         ;;
 esac