Add the ability to have the fields sorted.

[SpicyLemon]

Similar to providing the --sort-keys flag to jq, it'd be nice to be able to have the fields of an object sorted alphabetically in the output of json_info. However, the array indexes should still be sorted numerically, so it's not as simple as just using the sort program.

For example:
The command

> jq '[range(0;11)|{"val":.,"str":(.|tostring)}]' -n | json_info -r -p '.[9]' -p '.[10]' -

outputs

.[9] = object: 2 keys: ["val","str"]
.[9].val = number: 9
.[9].str = string: "9"
.[10] = object: 2 keys: ["val","str"]
.[10].val = number: 10
.[10].str = string: "10"

Note that the "val" field line is before the "str" field line.

The command

> jq '[range(0;11)|{"val":.,"str":(.|tostring)}]' -n | json_info -r -p '.[9]' -p '.[10]' - | sort

outputs

Note that the 10th element of the array is now listed before the 9th.

Desired output:

.[9] = object: 2 keys: ["str","val"]
.[9].str = string: "9"
.[9].val = number: 9
.[10] = object: 2 keys: ["str","val"]
.[10].str = string: "10"
.[10].val = number: 10

In the above, the ordering of the keys in the object line (e.g. the ["str","val"] in .[10] = object: 2 keys: ["str","val"]) isn't as important as the line ordering. The line ordering is the primary thing desired here.

[SpicyLemon]

My initial thought is to add the --sort-keys/-S flag to json_info, json_explorer and json_search.

For json_info, this won't be as simple as just providing --sort-keys to the jq command inside the json_info function (tried that). So I think we'll have to get crafty inside the actual jq filter.

For json_explorer, if --sort-keys is provided, just pass it on into the json_info call that creates the list of paths provided to fzf. It probably doesn't need to be provided to the preview window command.

The json_search function currently uses sort -u on the output in order to remove duplicates (e.g. when both a parent and child path are provided). We still don't want duplicates, though, so a bit of an overhaul will be needed in order to get non-duplicated output that is sorted when desired.

Currently, the command

> jq '[range(0;11)|{"val":.,"str":(.|tostring)}]' -n | ./json_search.sh -q '1' -

outputs

.[10].str: "10"
.[10].val: 10
.[1].str: "1"
.[1].val: 1

Ideally, that command would output this:

.[1].val: 1
.[1].str: "1"
.[10].val: 10
.[10].str: "10"

And the command

> jq '[range(0;11)|{"val":.,"str":(.|tostring)}]' -n | ./json_search.sh --sort-keys -q '1' -

would output

.[1].str: "1"
.[1].val: 1
.[10].str: "10"
.[10].val: 10

It'd probably also be good to add a --no-sort-keys/-N flag as a mutually exclusive way to turn off this extra sorting (last provided is used). Note that I picked -N here because it doesn't conflict with any jq flags and none of the functions in this repo have either a -n or -N flag.