diff --git a/lib/loader/blog.js b/lib/loader/blog.js
index c654e67096..6bb413ef7a 100644
--- a/lib/loader/blog.js
+++ b/lib/loader/blog.js
@@ -1,52 +1,47 @@
-const fs = require('fs-extra');
-const path = require('path');
-const fm = require('front-matter');
-const globby = require('globby');
-const indexRE = /(^|.*\/)index\.md$/i;
-const extRE = /\.md$/;
-
-function fileToPath(file) {
-  if (indexRE.test(file)) {
-    // index.md -> /
-    // foo/index.md -> /foo/
-    return file.replace(indexRE, '/$1');
-  } else {
-    // foo.md -> /foo.html
-    // foo/bar.md -> /foo/bar.html
-    return `/${file.replace(extRE, '').replace(/\\/g, '/')}.html`;
-  }
-}
-
-function parse(fileString) {
-  if (!fm.test(fileString)) {
-    return {metadata: null, content: fileString};
-  }
-  const {attributes: metadata, body: content} = fm(fileString);
-
-  return {metadata, content};
-}
-
-async function loadBlog(sourceDir) {
-  const blogFiles = await globby(['**/*.md', '!.blogi', '!node_modules'], {
-    cwd: sourceDir
-  });
-
-  const blogDatas = await Promise.all(
-    blogFiles.map(async file => {
-      const filepath = path.resolve(sourceDir, file);
-      const fileString = await fs.readFile(filepath, 'utf-8');
-      const {metadata, content} = parse(fileString);
-
-      return {
-        path: fileToPath(file),
-        content: content,
-        title: metadata.title,
-        date: metadata.date
-      };
-    })
-  );
-  blogDatas.sort((a, b) => b.date - a.date);
-  return blogDatas;
-}
-
-module.exports = loadBlog;
+const fs = require('fs-extra');
+const path = require('path');
+const fm = require('front-matter');
+const globby = require('globby');
+const indexRE = /(^|.*\/)index\.md$/i;
+const mdRE = /\.md$/;
+
+function fileToPath(file) {
+  if (indexRE.test(file)) {
+    return file.replace(indexRE, '/$1');
+  }
+  return `/${file.replace(mdRE, '').replace(/\\/g, '/')}.html`;
+}
+
+function parse(fileString) {
+  if (!fm.test(fileString)) {
+    return {metadata: null, content: fileString};
+  }
+  const {attributes: metadata, body: content} = fm(fileString);
+
+  return {metadata, content};
+}
+
+async function loadBlog(sourceDir) {
+  const blogFiles = await globby(['**/*.md', '!.blogi', '!node_modules'], {
+    cwd: sourceDir
+  });
+
+  const blogDatas = await Promise.all(
+    blogFiles.map(async file => {
+      const filepath = path.resolve(sourceDir, file);
+      const fileString = await fs.readFile(filepath, 'utf-8');
+      const {metadata, content} = parse(fileString);
+
+      return {
+        path: fileToPath(file),
+        content,
+        title: metadata.title,
+        date: metadata.date
+      };
+    })
+  );
+  blogDatas.sort((a, b) => b.date - a.date);
+  return blogDatas;
+}
+
+module.exports = loadBlog;
diff --git a/lib/loader/config.js b/lib/loader/config.js
index 78ce9260d3..38fd0201f9 100644
--- a/lib/loader/config.js
+++ b/lib/loader/config.js
@@ -1,14 +1,14 @@
-const fs = require('fs-extra');
-const path = require('path');
-
-module.exports = function loadConfig(sourceDir, deleteCache = true) {
-  const configPath = path.resolve(sourceDir, '.blogi', 'config.js');
-  if (deleteCache) {
-    delete require.cache[configPath];
-  }
-  let config = {};
-  if (fs.existsSync(configPath)) {
-    config = require(configPath);
-  }
-  return config;
-};
+const fs = require('fs-extra');
+const path = require('path');
+
+module.exports = function loadConfig(sourceDir, deleteCache = true) {
+  const configPath = path.resolve(sourceDir, '.blogi', 'config.js');
+  if (deleteCache) {
+    delete require.cache[configPath];
+  }
+  let config = {};
+  if (fs.existsSync(configPath)) {
+    config = require(configPath); // eslint-disable-line
+  }
+  return config;
+};
diff --git a/lib/loader/index.js b/lib/loader/index.js
index d983770936..3953b03a45 100644
--- a/lib/loader/index.js
+++ b/lib/loader/index.js
@@ -1,18 +1,15 @@
-const path = require('path');
-const loadConfig = require('./config');
-const loadBlog = require('./blog');
-
-module.exports = async function load(sourceDir) {
-  // 1. load siteConfig
-  const siteConfig = loadConfig(sourceDir);
-
-  // 2. extract data from all blog files
-  const blogDatas = await loadBlog(sourceDir);
-
-  // 3. TODO
-
-  return {
-    siteConfig,
-    blogDatas
-  };
-};
+const loadConfig = require('./config');
+const loadBlog = require('./blog');
+
+module.exports = async function load(sourceDir) {
+  // 1. load siteConfig
+  const siteConfig = loadConfig(sourceDir);
+
+  // 2. extract data from all blog files
+  const blogDatas = await loadBlog(sourceDir);
+
+  return {
+    siteConfig,
+    blogDatas
+  };
+};
diff --git a/test/loader/blog.test.js b/test/loader/blog.test.js
index df36780dbc..28f61e0b90 100644
--- a/test/loader/blog.test.js
+++ b/test/loader/blog.test.js
@@ -1,18 +1,17 @@
-const path = require('path');
-const fs = require('fs');
-const loadBlog = require('../../lib/loader/blog');
-
-describe('loadBlog', () => {
-  const simpleDir = path.join(__dirname, '__fixtures__', 'simple');
-  const customDir = path.join(__dirname, '__fixtures__', 'custom');
-
-  test('simple', async () => {
-    const blogDatas = await loadBlog(simpleDir);
-    expect(blogDatas).toMatchSnapshot();
-  });
-
-  test('custom', async () => {
-    const blogDatas = await loadBlog(customDir);
-    expect(blogDatas).toMatchSnapshot();
-  });
-});
+const path = require('path');
+const loadBlog = require('../../lib/loader/blog');
+
+describe('loadBlog', () => {
+  const simpleDir = path.join(__dirname, '__fixtures__', 'simple');
+  const customDir = path.join(__dirname, '__fixtures__', 'custom');
+
+  test('simple', async () => {
+    const blogDatas = await loadBlog(simpleDir);
+    expect(blogDatas).toMatchSnapshot();
+  });
+
+  test('custom', async () => {
+    const blogDatas = await loadBlog(customDir);
+    expect(blogDatas).toMatchSnapshot();
+  });
+});
diff --git a/test/loader/config.test.js b/test/loader/config.test.js
index 6965ac2dd6..f1b137dbdf 100644
--- a/test/loader/config.test.js
+++ b/test/loader/config.test.js
@@ -1,16 +1,15 @@
-const path = require('path');
-const fs = require('fs');
-const loadConfig = require('../../lib/loader/config');
-
-describe('loadConfig', () => {
-  const simpleDir = path.join(__dirname, '__fixtures__', 'simple');
-  const customDir = path.join(__dirname, '__fixtures__', 'custom');
-
-  test('simple', () => {
-    expect(loadConfig(simpleDir)).toMatchSnapshot();
-  });
-
-  test('custom', () => {
-    expect(loadConfig(customDir)).toMatchSnapshot();
-  });
-});
+const path = require('path');
+const loadConfig = require('../../lib/loader/config');
+
+describe('loadConfig', () => {
+  const simpleDir = path.join(__dirname, '__fixtures__', 'simple');
+  const customDir = path.join(__dirname, '__fixtures__', 'custom');
+
+  test('simple', () => {
+    expect(loadConfig(simpleDir)).toMatchSnapshot();
+  });
+
+  test('custom', () => {
+    expect(loadConfig(customDir)).toMatchSnapshot();
+  });
+});