[grunt/precommit] added check for snake_case filenames

package.json

@@ -49,7 +49,7 @@
     "test:coverage": "grunt test:coverage",
     "build": "grunt build",
     "start": "./bin/kibana --dev",
-    "precommit": "grunt lintStagedFiles",
+    "precommit": "grunt precommit",
     "karma": "karma start",
     "elasticsearch": "grunt esvm:dev:keepalive",
     "lint": "grunt eslint:source",

tasks/check_staged_filenames.js

@@ -0,0 +1,14 @@
+export default function (grunt) {
+  grunt.registerTask('checkStagedFilenames', function () {
+    grunt.task.requires('collectStagedFiles');
+
+    const invalid = grunt.config
+    .get('stagedFiles')
+    .filter(name => name.match(/[A-Z ]/))
+    .reduce((all, name) => `${all}  ${name}\n`, '');
+
+    if (invalid) {
+      grunt.log.error(`Filenames must use snake_case.\n${invalid}`);
+    }
+  });
+}

tasks/collect_staged_filenames.js

@@ -0,0 +1,28 @@
+import { resolve } from 'path';
+import SimpleGit from 'simple-git';
+import { promisify } from 'bluebird';
+
+const root = resolve(__dirname, '..');
+const simpleGit = new SimpleGit(root);
+const diff = promisify(simpleGit.diff, simpleGit);
+
+export default function (grunt) {
+  grunt.registerTask('collectStagedFiles', function () {
+    diff(['--name-status', '--cached'])
+    .then(output => {
+      const files = output
+      .split('\n')
+      .map(line => line.trim().split('\t'))
+      .map(parts => {
+        const status = parts.shift();
+        if (status === 'D' || status === 'U') return;
+        return parts.join('\t').trim();
+      })
+      .filter(Boolean);
+
+      grunt.log.ok(files.length + ' staged files');
+      grunt.config.set('stagedFiles', files);
+    })
+    .nodeify(this.async());
+  });
+};

tasks/lintStagedFiles.js

@@ -1,39 +0,0 @@
-var _ = require('lodash');
-var resolve = require('path').resolve;
-var root = resolve(__dirname, '..');
-var simpleGit = require('simple-git')(root);
-var diff = require('bluebird').promisify(simpleGit.diff, simpleGit);
-
-module.exports = function (grunt) {
-
-  grunt.registerTask(
-    'lintStagedFiles',
-    'Run staged files through JSHint/JSCS',
-    function () {
-
-      diff(['--name-only', '--cached'])
-      .then(function (files) {
-        // match these patterns
-        var patterns = grunt.config.get('eslint.source.files.src');
-        if (!patterns) grunt.fail.warn('eslint file pattern is not defined');
-
-        files = files.split('\n').filter(Boolean)
-        .map(function (file) {
-          return resolve(root, file);
-        })
-        .filter(function (file) {
-          return grunt.file.isMatch(patterns, file);
-        });
-
-        grunt.log.ok('Staged files to lint: ' + files.length);
-        if (!_.size(files)) return;
-
-        grunt.config.set('eslint.staged.files.src', files);
-        grunt.task.run(['eslint:staged']);
-      })
-      .nodeify(this.async());
-
-    }
-  );
-};
-

tasks/lint_staged_files.js

@@ -0,0 +1,21 @@
+import { resolve } from 'path';
+
+const root = resolve(__dirname, '..');
+
+export default function (grunt) {
+  grunt.registerTask('lintStagedFiles', function () {
+    grunt.task.requires('collectStagedFiles');
+
+    // match these patterns
+    var patterns = grunt.config.get('eslint.source.files.src');
+    if (!patterns) grunt.fail.warn('eslint file pattern is not defined');
+
+    const files = grunt.config
+    .get('stagedFiles')
+    .map(file => resolve(root, file))
+    .filter(file => grunt.file.isMatch(patterns, file));
+
+    grunt.config.set('eslint.staged.files.src', files);
+    grunt.task.run(['eslint:staged']);
+  });
+}

tasks/precommit.js

@@ -0,0 +1,7 @@
+export default function (grunt) {
+  grunt.registerTask('precommit', [
+    'collectStagedFiles',
+    'checkStagedFilenames',
+    'lintStagedFiles'
+  ]);
+};