Added ability to set config in package.json (#65)

* Added ability to set config in package.json

* Added tests for allowing settings to be in package.json

bin/customizr

@@ -34,6 +34,15 @@ function help() {
 	return out.join("\n");
 }
 
+function configInPackage() {
+    var config = JSON.parse(fs.readFileSync('package.json'));
+    if ('customizr' in config) {
+        return config.customizr;
+    }
+
+    return {};
+}
+
 if (opts.help) {
 	process.stdout.write(help());
 	return process.exit();
@@ -46,10 +55,16 @@ if (opts.help) {
 	if (opts.config) {
 		if (fs.existsSync(opts.config)) {
 			config = JSON.parse(fs.readFileSync(opts.config));
+
+            if (path.basename(opts.config) === 'package.json') {
+                config = configInPackage();
+            }
 		} else {
 			process.stderr.write("Path does not exist.");
 			return process.exit();
 		}
+	} else {
+		config = configInPackage();
 	}
 
 	return customizr(config, process.exit);

package.json

@@ -41,5 +41,13 @@
     "fs-extra": "^7.0.1",
     "mocha": "^6.0.2",
     "nexpect": "^0.5.0"
+  },
+  "customizr": {
+    "dest": "build/modernizr-package.js",
+    "files": {
+      "src": [
+        "test/{js,css}/*"
+      ]
+    }
   }
 }

test/tests.js

@@ -361,3 +361,54 @@ describe("custom builds", function () {
 
 	});
 });
+
+describe("settings", function() {
+    var testsLength = testArray.length,
+        existingBuild = path.join(cwd, "build", "modernizr-package.js");
+
+    it("should honor configs in package.json", function (done) {
+        process.stdout.write("\n\n");
+
+        nexpect.spawn(cli, [
+            "--config", 'package.json'
+        ], {
+            stripColors: true
+        })
+
+            .wait("Looking for Modernizr references")
+
+            .wait(">> " + testsLength + " matches in")
+            .expect(">> " + tests)
+
+            .expect(">> " + testsLength + " matches in")
+            .expect(">> " + tests)
+
+            .expect(">> " + testsLength + " matches in")
+            .expect(">> " + tests)
+
+            .expect(">> Ready to build using these settings:")
+
+            .wait("Building your customized Modernizr").wait("OK")
+            .expect(">> Success! Saved file to build/modernizr-package.js")
+
+            .run(function (err) {
+                if (!err) {
+                    done();
+                } else {
+                    throw err;
+                }
+            });
+
+        describe("should include all tests", function () {
+            var contents;
+
+            testArray.forEach(function (test) {
+                it(test, function (done) {
+                    contents = contents || fs.readFileSync(existingBuild, "utf8");
+                    expect(contents.indexOf(test)).to.not.equal(-1);
+                    done();
+                });
+            });
+        });
+    });
+});