Allow GScan to scan different versions

closes #116

- CLI
    - Added `-1, --v1` option to allow cli usage of GScan to check for 1.0 theme compatibility
    - Passed `options` that includes a `checkVersion` property, which is set to `v1` when cli called with `-1`, or `latest` by default.
- Restructure current specs
    - created a new `/specs` directory
    - renamed current `spec.js` to `v1.js`
    - duplicated current `spec.js` to `latest.js` -> will contain only differences later
    - the latest version will inherit the ruleset from `v1`, but overwrite properties that exist in both
- App
    - Offered a select box with the - currently - two accepted versions, whereas the latest is set to default
    - Passed the selected version to gscan
- Checks
    - moveed checks properties (regex, helpername, cssclass) to the rules in spec
    - useed list of rules to specify which rules have to run for each version (concat them, if applicable)
    - require the version of the spec that we need for the checks only

app/index.js

@@ -44,13 +44,18 @@ app.get('/example/', function (req, res) {
 app.post('/',
     upload.single('theme'),
     function (req, res, next) {
-        var zip = {
+        const zip = {
             path: req.file.path,
             name: req.file.originalname
         };
+        const options = {
+            checkVersion: req.body.version || 'latest'
+        };
+
         debug('Uploaded: ' + zip.name + ' to ' + zip.path);
+        debug('Version to check: ' + options.checkVersion);
 
-        gscan.checkZip(zip)
+        gscan.checkZip(zip, options)
             .then(function processResult(theme) {
                 debug('Checked: ' + zip.name);
                 res.theme = theme;
@@ -67,8 +72,11 @@ app.post('/',
             });
     },
     function doRender(req, res) {
+        const options = {
+            checkVersion: req.body.version || 'latest'
+        };
         debug('Formatting result');
-        var result = gscan.format(res.theme);
+        const result = gscan.format(res.theme, options);
         debug('Rendering result');
         scanHbs.handlebars.logger.level = 0;
         res.render('result', result);

app/tpl/index.hbs

@@ -3,16 +3,28 @@
         <header class="gh-header">
             <h1>Scan Your Theme</h1>
             <p class="gh-subhead">Upload a zip to check for errors, deprecations and other compatibility issues.</p>
-            <p class="gh-subhead warning"><strong>GScan validates your theme based on the Ghost 1.0 requirements.</strong></p>
-            <a href="https://themes.ghost.org/v1.25.0/docs/changelog#ghost-100" target=_blank class="gh-morelink">
-                See the changelog for Ghost 1.0 themes
+            <p class="gh-subhead warning"><strong>GScan validates your theme based on the Ghost 2.0 requirements by default.</strong></p>
+            <p>You can select a different version if you need to check your theme for a previous major version.</p>
+
+            <a href="https://themes.ghost.org/v2.0.0/docs/changelog" target=_blank class="gh-morelink">
+                See the changelog for Ghost 2.0 themes
                 <svg viewBox="0 0 18 27" xmlns="http://www.w3.org/2000/svg"><path d="M2.397 25.426l13.143-11.5-13.143-11.5" stroke-width="3" stroke="currentColor" fill="none" fill-rule="evenodd" stroke-linecap="round" stroke-linejoin="round"></path></svg>
             </a>
         </header>
         <section class="gh-gscan-uploader">
-            <form action="/" method="post" enctype="multipart/form-data" class="clearfix">
-                <input type="file" name="theme" id="theme" />
-                <button class="gh-btn gh-btn-blue" id="theme-submit" type="submit"><span>Upload</span></button>
+            <form class="gh-gscan-uploader-form" action="/" method="post" enctype="multipart/form-data">
+                <div class="gh-form-group">
+                    <input class="gh-input" type="file" name="theme" id="theme" />
+                </div>
+                <div class="gh-form-group">
+                    <label for="version">Select version:</label>
+                    <select class="gh-input gh-select" name="version" id="version">
+                        <option value="latest" selected>2.0 (latest)</option>
+                        <option value="v1">1.0</option>
+                    </select>
+                </div>
+
+            <button class="gh-btn gh-btn-blue" id="theme-submit" type="submit"><span>Upload</span></button>
             </form>
         </section>
     </div>

bin/cli.js

@@ -6,6 +6,7 @@ var pkgJson = require('../package.json'),
     chalk = require('chalk'),
     gscan = require('../lib'),
 
+    options = {},
     themePath = '',
     levels;
 
@@ -15,6 +16,7 @@ program
     .arguments('cmd <themePath>')
     .option('-p, --pre', 'Run a pre-check only')
     .option('-z, --zip', 'Theme path points to a zip file')
+    .option('-1, --v1', 'Check theme for Ghost 1.0 compatibility, instead of 2.0')
     .action(function (theme) {
         themePath = theme;
     })
@@ -32,8 +34,8 @@ function outputResult(result) {
     console.log('-', levels[result.level](result.level), result.rule);
 }
 
-function outputResults(theme) {
-    theme = gscan.format(theme);
+function outputResults(theme, options) {
+    theme = gscan.format(theme, options);
 
     console.log(chalk.bold.underline('\nRule Report:'));
 
@@ -62,21 +64,30 @@ function outputResults(theme) {
 if (!program.args.length) {
     program.help();
 } else {
+    if (program.v1) {
+        options.checkVersion = 'v1';
+    } else {
+        // CASE: set default value
+        options.checkVersion = 'latest';
+    }
+
     if (program.zip) {
         console.log('Checking zip file...');
-        gscan.checkZip(themePath)
-            .then(outputResults)
-            .catch(function (error) {
+        gscan.checkZip(themePath, options)
+            .then(theme => outputResults(theme, options))
+            .catch((error) => {
                 console.error(error);
             });
     } else {
         console.log('Checking directory...');
-        gscan.check(themePath).then(outputResults).catch(function ENOTDIRPredicate(err) {
-            return err.code === 'ENOTDIR';
-        }, function (err) {
-            console.error(err.message);
-            console.error('Did you mean to add the -z flag to read a zip file?');
+        gscan.check(themePath, options)
+            .then(theme => outputResults(theme, options))
+            .catch(function ENOTDIRPredicate(err) {
+                return err.code === 'ENOTDIR';
+            }, function (err) {
+                console.error(err.message);
+                console.error('Did you mean to add the -z flag to read a zip file?');
             /* eslint-enable no-console */
-        });
+            });
     }
 }

lib/checker.js

@@ -1,28 +1,28 @@
-var Promise = require('bluebird'),
-    _ = require('lodash'),
-    requireDir = require('require-dir'),
-    readTheme = require('./read-theme'),
-    checker,
-    checks;
+const Promise = require('bluebird');
+const _ = require('lodash');
+const requireDir = require('require-dir');
+const readTheme = require('./read-theme');
 
-checks = requireDir('./checks');
+const checks = requireDir('./checks');
 
 /**
  * Check theme
  *
  * Takes a theme path, reads the theme, and checks it for issues.
  * Returns a theme object.
  * @param themePath
+ * @param options
  * @returns {Object}
  */
-checker = function checkAll(themePath, options) {
+const checker = function checkAll(themePath, options) {
     options = options || {};
 
-    return readTheme(themePath).then(function (theme) {
-        return Promise.reduce(_.values(checks), function (theme, check) {
-            return check(theme, themePath, options);
-        }, theme);
-    });
+    return readTheme(themePath)
+        .then(function (theme) {
+            return Promise.reduce(_.values(checks), function (theme, check) {
+                return check(theme, options, themePath);
+            }, theme);
+        });
 };
 
 module.exports = checker;