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A json to yaml cli tool

 4 years ago
source link: https://github.com/solderjs/json2yaml
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Please go to the real repo at https://git.coolaj86.com/coolaj86/json2yaml.js

json2yaml

A command-line utility to convert JSON to YAML (meaning a .json file to a .yml file)

The purpose of this utility is to pretty-print JSON in the human-readable YAML object notation (ignore the misnomer, YAML is not a Markup Language at all).

Installation

npm install -g json2yaml

Note : To use npm and json2yaml you must have installed NodeJS .

Usage

Specify a file:

json2yaml ./example.json > ./example.yml

yaml2json ./example.yml | json2yaml > ./example.yml

Or pipe from stdin:

curl -s http://foobar3000.com/echo/echo.json | json2yaml

wget -qO- http://foobar3000.com/echo/echo.json | json2yaml

Or require:

(function () {
  "use strict";

  var YAML = require('json2yaml')
    , ymlText
    ;

    ymlText = YAML.stringify({
      "foo": "bar"
    , "baz": "corge"
    });

    console.log(ymlText);
}());

Example

So, for all the times you want to turn JSON int YAML (YML):

{ "foo": "bar"
, "baz": [
    "qux"
  , "quxx"
  ]
, "corge": null
, "grault": 1
, "garply": true
, "waldo": "false"
, "fred": "undefined"
}

becomes

---
  foo: "bar"
  baz:
    - "qux"
    - "quxx"
  corge: null
  grault: 1
  garply: true
  waldo: "false"
  fred: "undefined"

Note : In fact, both of those Object Notations qualify as YAML because JSON technically is a proper subset of YAML. That is to say that all proper YAML parsers parse proper JSON.

YAML can use either whitespace and dashes or brackets and commas .

For human readability, the whitespace-based YAML is preferrable. For compression and computer readability, the JSON syntax of YAML is preferrable.

Alias

json2yaml has the following aliases: 

jsontoyaml
json2yml
jsontoyml

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