| 1 | [ -z "$N" ] && . /etc/functions.sh |
| 2 | |
| 3 | # functions for parsing and generating json |
| 4 | |
| 5 | json_init() { |
| 6 | [ -n "$JSON_UNSET" ] && eval "unset $JSON_UNSET" |
| 7 | export -- JSON_SEQ=0 JSON_STACK= JSON_CUR="JSON_VAR" JSON_UNSET= |
| 8 | } |
| 9 | |
| 10 | json_add_generic() { |
| 11 | local type="$1" |
| 12 | local var="$2" |
| 13 | local val="$3" |
| 14 | local cur="${4:-$JSON_CUR}" |
| 15 | |
| 16 | export ${NO_EXPORT:+-n} -- "${cur}_$var=$val" |
| 17 | export ${NO_EXPORT:+-n} -- "TYPE_${cur}_$var=$type" |
| 18 | append JSON_UNSET "${cur}_$var TYPE_${cur}_$var" |
| 19 | append "KEYS_${cur}" "$var" |
| 20 | } |
| 21 | |
| 22 | json_add_table() { |
| 23 | JSON_SEQ=$(($JSON_SEQ + 1)) |
| 24 | append JSON_STACK "$JSON_CUR" |
| 25 | local table="JSON_TABLE$JSON_SEQ" |
| 26 | export ${NO_EXPORT:+-n} -- "UP_$table=$JSON_CUR" |
| 27 | JSON_CUR="$table" |
| 28 | } |
| 29 | |
| 30 | json_add_object() { |
| 31 | local cur="$JSON_CUR" |
| 32 | json_add_table |
| 33 | json_add_generic object "$1" "$JSON_CUR" "$cur" |
| 34 | } |
| 35 | |
| 36 | json_close_object() { |
| 37 | local oldstack="$JSON_STACK" |
| 38 | export "KEYS_${JSON_CUR}" |
| 39 | JSON_CUR="${JSON_STACK##* }" |
| 40 | JSON_STACK="${JSON_STACK% *}" |
| 41 | [[ "$oldstack" == "$JSON_STACK" ]] && JSON_STACK= |
| 42 | } |
| 43 | |
| 44 | json_add_array() { |
| 45 | local cur="$JSON_CUR" |
| 46 | json_add_table |
| 47 | json_add_generic array "$1" "$JSON_CUR" "$cur" |
| 48 | } |
| 49 | |
| 50 | json_close_array() { |
| 51 | json_close_object |
| 52 | } |
| 53 | |
| 54 | json_add_string() { |
| 55 | json_add_generic string "$1" "$2" |
| 56 | } |
| 57 | |
| 58 | json_add_int() { |
| 59 | json_add_generic int "$1" "$2" |
| 60 | } |
| 61 | |
| 62 | json_add_boolean() { |
| 63 | json_add_generic boolean "$1" "$2" |
| 64 | } |
| 65 | |
| 66 | # functions read access to json variables |
| 67 | |
| 68 | json_load() { |
| 69 | eval `jshn -r "$1"` |
| 70 | } |
| 71 | |
| 72 | json_dump() { |
| 73 | jshn -w |
| 74 | } |
| 75 | |
| 76 | json_get_type() { |
| 77 | local dest="$1" |
| 78 | local var="$2" |
| 79 | eval "export ${NO_EXPORT:+-n} -- \"$dest=\${TYPE_${JSON_CUR}_$var}\"" |
| 80 | } |
| 81 | |
| 82 | json_get_var() { |
| 83 | local dest="$1" |
| 84 | local var="$2" |
| 85 | eval "export ${NO_EXPORT:+-n} -- \"$dest=\${${JSON_CUR}_$var}\"" |
| 86 | } |
| 87 | |
| 88 | json_select() { |
| 89 | local target="$1" |
| 90 | local type |
| 91 | |
| 92 | [ -z "$1" ] && { |
| 93 | JSON_CUR="JSON_VAR" |
| 94 | return |
| 95 | } |
| 96 | [[ "$1" == ".." ]] && { |
| 97 | eval "JSON_CUR=\"\${UP_$JSON_CUR}\"" |
| 98 | return; |
| 99 | } |
| 100 | json_get_type type "$target" |
| 101 | case "$type" in |
| 102 | object|array) |
| 103 | json_get_var JSON_CUR "$target" |
| 104 | ;; |
| 105 | *) |
| 106 | echo "WARNING: Variable '$target' does not exist or is not an array/object" |
| 107 | ;; |
| 108 | esac |
| 109 | } |
| 110 | |
