Command line interface

.editorconfig

@@ -0,0 +1,9 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true

bin/markdownlint-cli.js

@@ -0,0 +1,67 @@
+#!/usr/bin/env node
+
+"use strict";
+
+/* eslint no-console:0, no-process-exit:0 */
+
+var pkg = require("../package");
+var program = require("commander");
+
+function readConfiguration(args) {
+  var rc = require("rc");
+  var config = rc(pkg.name, {});
+  if (args.config) {
+    var fs = require("fs");
+    try {
+      var userConfig = JSON.parse(fs.readFileSync(args.config));
+      var extend = require("deep-extend");
+      config = extend(config, userConfig);
+    } catch (e) {
+      console.warn("Cannot read or parse config file", args.config);
+    }
+  }
+  return config;
+}
+
+function lint(lintFiles, config) {
+  var markdownlint = require("../" + pkg.main);
+  var lintOptions = {
+    "files": lintFiles,
+    "config": config
+  };
+  return markdownlint.sync(lintOptions);
+}
+
+function printResult(lintResult) {
+  // var chalk = require("chalk");
+  console.log(lintResult.toString());
+}
+
+function isResultCorrect(lintResult) {
+  var _ = require("lodash");
+  function notEmptyObject(item) {
+    return !_.isEqual(item, {});
+  }
+  return _.values(lintResult).some(notEmptyObject);
+}
+
+program
+  .version(pkg.version)
+  .description(pkg.description)
+  .usage("[options] <files>")
+  .option("-c, --config [configFile]", "Configuration file");
+
+program.parse(process.argv);
+
+var files = program.args;
+
+if (files && files.length > 0) {
+  var config = readConfiguration(program);
+  var lintResult = lint(files, config);
+  printResult(lintResult);
+  if (isResultCorrect(lintResult)) {
+    process.exit(1);
+  }
+} else {
+  program.help();
+}

package.json

@@ -11,16 +11,24 @@
     "url": "https://github.com/DavidAnson/markdownlint.git"
   },
   "bugs": "https://github.com/DavidAnson/markdownlint/issues",
+  "bin": {
+    "markdownlint": "./bin/markdownlint-cli.js"
+  },
   "scripts": {
+    "start": "node ./bin/markdownlint-cli.js",
     "test": "nodeunit",
     "test-cover": "istanbul cover node_modules/nodeunit/bin/nodeunit",
     "debug": "node debug node_modules/nodeunit/bin/nodeunit",
-    "lint": "eslint lib test && eslint --env browser --global markdownit --global markdownlint --rule \"no-unused-vars: 0, no-extend-native: 0, max-statements: 0, no-console: 0\" demo && eslint --rule \"no-console: 0, no-shadow: 0\" example",
+    "lint": "eslint lib test bin && eslint --env browser --global markdownit --global markdownlint --rule \"no-unused-vars: 0, no-extend-native: 0, max-statements: 0, no-console: 0\" demo && eslint --rule \"no-console: 0, no-shadow: 0\" example",
     "build-demo": "cpy node_modules/markdown-it/dist/markdown-it.min.js demo && cd demo && rimraf markdownlint-browser.* && cpy file-header.js . --rename=markdownlint-browser.js && browserify browser-polyfills.js ../lib/markdownlint.js --standalone markdownlint >> markdownlint-browser.js && uglifyjs markdownlint-browser.js --compress --mangle --comments --output markdownlint-browser.min.js",
     "example": "npm install through2 && cd example && node standalone.js && grunt markdownlint --force && gulp markdownlint"
   },
   "dependencies": {
-    "markdown-it": "^5.1.0"
+    "commander": "~2.9.0",
+    "deep-extend": "~0.4.1",
+    "lodash": "~3.10.1",
+    "markdown-it": "^5.1.0",
+    "rc": "~1.1.6"
   },
   "devDependencies": {
     "browserify": "^13.0.0",