ajtejankar / jsh

Utility for processing json on command line.

JSH

Utility for processing json on command line.

Installation

You need node and npm to use this program.

npm i -g chigur/jsh

Why?

There are already some projects that solve the problem of command line json processing but I just didn't like learning any of them, so I made my own command line utility for it. This program doesn't invent fancy json querying and manipulating syntax. Querying is done by globs and manipulating is done by javascript. Simple and easy.

How?

curl https://api.github.com/users/chigur/gists | jsh ' **/description { pf($val) } '

Jsh takes pairs of pattern and action in following format.

<pattern> { <action> // pair 1 }
<pattern> { <action> // pair 2 }

Patterns are glob patterns, your json is flattened into key value pairs where keys resemeble file paths.

Consider following object

{
  "name": {
    "arr": [1],
    "age": 21
  }
}

It becomes

/name/arr/0   1
/name/age     21

Actions are any valid javascript code snippets, they can use certain aliases and variables like $key for the path or key, $val for value, pf and bn functions as aliases for console.log and require('path').basename respectively. Actions can contain javascript style comments and span across multiple lines.