+=json2jl

bin/json2jl.js

@@ -0,0 +1,46 @@
+#!/usr/bin/env node
+
+var opt = require('../lib/opt').fancy({filename:__filename, usage:
+[ 'Usage: jline-json2jl <--help|--version>'
+, '       jline-json2jl <filename>'
+, '       jline-json2jl -a <array_path> <filename>'
+, '       jline-json2jl -d <dict_path> <filename>'
+].join("\n")});
+
+console.log(opt);
+
+var parsePath	= require('./parsePath')
+  , fs		= require('fs');
+
+function getPath(thing, path){
+	return path.reduce(function(thing,bit){return thing && thing[bit];},thing);
+}
+
+var data = JSON.parse(fs.readFileSync(opt.filename));
+if (opt.array_path){
+	var path = parsePath(opt.array_path);
+	var array = getPath(data,path);
+	if (!array){
+		console.error("ERROR: Array missing");
+		process.exit(1);
+	}
+	if (!array.map){
+		console.error("ERROR: Not an array:\n    ", JSON.stringify(array).substr(0,10)+"...");
+		process.exit(2);
+	}
+	array.forEach(function(d){console.log(JSON.stringify(d));});
+} else if (opt.dict_path){
+	var path = parsePath(opt.dict_path);
+	var dict = getPath(data,path);
+	if (!dict){
+		console.error("ERROR: Dict missing");
+		process.exit(1);
+	}
+	if ('object' !== typeof(dict)){
+		console.error("ERROR: Not a dictionary:\n    ", JSON.stringify(array).substr(0,10)+"...");
+		process.exit(2);
+	}
+	Object.keys(dict).forEach(function(k){console.log(JSON.stringify({key:k,val:dict[k]}));});
+} else {
+	console.log(JSON.stringify(data));
+}

package.json

@@ -1,6 +1,6 @@
 {
   "name": "jline",
-  "version": "0.0.42",
+  "version": "0.0.43",
   "description": "Sort, grep and join files where every line is JSON.",
   "main": "index.js",
   "bin": {
@@ -24,6 +24,7 @@
     "jline-sort": "bin/sort.js",
     "jline-csv2jl": "bin/csv2jl.js",
     "jline-csv2jla": "bin/csv2jla.js",
+    "jline-json2jl": "bin/json2jl.js",
     "jline-mysql2jl": "bin/mysql2jl.sh",
     "jline-mysql2jla": "bin/mysql2jla.sh",
     "jline-numper": "util/numper.js",