jspm/registry#259

test/lib/OverrideFile.js

@@ -0,0 +1,88 @@
+"use strict;"
+
+var fs = require('fs');
+var util = require('util');
+var path = require('path');
+var glob = require('glob');
+var mout = require('mout');
+var colors = require('colors/safe');
+var JsonFile = require('./JsonFile');
+
+var registries = {
+	github: require('jspm-github'),
+	npm: require('jspm-npm')
+};
+
+/**
+ * @constructor OverrideFile
+ */		
+var OverrideFile = module.exports = function OverrideFile(endpoint){
+
+	if( !(this instanceof OverrideFile) )
+		return new OverrideFile(endpoint);
+
+	this._endpoint = endpoint;
+	this._files = [];
+	this._errors = this._errors || [];
+	this._registry;
+	this._package;
+
+	var match = /^([^:\s]*):([^\s]*)$/.exec(endpoint);
+
+	if(!match)
+	{
+		this.error('invalid enpoint package');
+	}
+	else
+	{
+		this._registry = match[1];
+		this._package = match[2];
+
+		if(!registries[this._registry])
+		{
+			this.error('invalid registry');
+		}
+		else if(!registries[this._registry].packageFormat.test(this._package))
+		{
+			this.error('invalid pacakge name');
+		}
+
+		this._glob = path.resolve('./package-overrides', this._registry) + '/' + this._package + '@*.json';
+
+
+		this._files = glob.sync(this._glob);
+		this.forEach(function(file){
+
+			var err = JsonFile(file).errors();
+
+			if(err.length > 0)
+				this.error(JsonFile(file).errors().join('\n'));
+
+		});
+	}
+
+};
+
+util.inherits(OverrideFile, JsonFile);
+
+OverrideFile.prototype.error = function(msg){
+
+	var result = '';
+	result += this._endpoint ? colors.gray(this._endpoint) + ' ' : '';
+	result += msg;
+
+	return JsonFile.prototype.error.call(this, result);
+};
+
+OverrideFile.prototype.forEach = function(fn){
+
+	mout.array.forEach(this._files, fn, this);
+
+	return this;	
+};
+
+OverrideFile.prototype.isFile = function(){
+
+	return this._files.length > 0;
+};
+