style: use prettier (#644)

.editorconfig

@@ -1,15 +1,13 @@
-# This file is for unifying the coding style for different editors and IDEs.
-# More information at http://EditorConfig.org
-
-# No .editorconfig files above the root directory
-root = true
+# editorconfig.org
 
 [*]
-indent_style = space
-indent_size = 4
 charset = utf-8
-trim_trailing_whitespace = true
+indent_style = space
+indent_size = 2
+end_of_line = lf
 insert_final_newline = true
+trim_trailing_whitespace = true
 
-[package.json]
-indent_size = 2
+[*.md]
+insert_final_newline = true
+trim_trailing_whitespace = false

.eslintignore

@@ -1,5 +1,5 @@
+/node_modules
 # Compiled by webpack
 test/output
-
 # Fake node_modules folder for tests
 test/node_modules

.eslintrc.js

@@ -1,8 +1,13 @@
 module.exports = {
-    root: true,
-    extends: ['@webpack-contrib/eslint-config-webpack'],
-    rules: {
-        // Remove strict rule in next major
-        "strict": "off",
-    },
+  root: true,
+  plugins: ['prettier'],
+  extends: ['@webpack-contrib/eslint-config-webpack'],
+  rules: {
+    // Remove strict rule in next major
+    strict: 'off',
+    'prettier/prettier': [
+      'error',
+      { singleQuote: true, trailingComma: 'es5', arrowParens: 'always' },
+    ],
+  },
 };

.gitattributes

@@ -0,0 +1,3 @@
+package-lock.json -diff
+* text=auto
+bin/* eol=lf

.gitignore

@@ -1,19 +1,20 @@
-lib-cov
-*.seed
-*.log
-*.csv
-*.dat
-*.out
-*.pid
-*.gz
-
-pids
 logs
-results
+*.log
+npm-debug.log*
+.eslintcache
 
-npm-debug.log
+/coverage
+/dist
+/local
+/reports
 /node_modules
-coverage
+
+.DS_Store
+Thumbs.db
 .idea
+*.iml
+.vscode
+*.sublime-project
+*.sublime-workspace
 .nyc_output
 test/output

.prettierrc

@@ -0,0 +1,5 @@
+{
+  "singleQuote": true,
+  "trailingComma": "es5",
+  "arrowParens": "always"
+}

lib/formatSassError.js

@@ -1,8 +1,8 @@
-"use strict";
+'use strict';
 
-const path = require("path");
-const os = require("os");
-const fs = require("fs");
+const path = require('path');
+const os = require('os');
+const fs = require('fs');
 
 // A typical sass error looks like this
 // const SassError = {
@@ -20,36 +20,37 @@ const fs = require("fs");
  * @param {string} resourcePath
  */
 function formatSassError(err, resourcePath) {
-    // Instruct webpack to hide the JS stack from the console
-    // Usually you're only interested in the SASS stack in this case.
-    // eslint-disable-next-line no-param-reassign
-    err.hideStack = true;
-
-    // The file property is missing in rare cases.
-    // No improvement in the error is possible.
-    if (!err.file) {
-        return;
-    }
+  // Instruct webpack to hide the JS stack from the console
+  // Usually you're only interested in the SASS stack in this case.
+  // eslint-disable-next-line no-param-reassign
+  err.hideStack = true;
 
-    let msg = err.message;
+  // The file property is missing in rare cases.
+  // No improvement in the error is possible.
+  if (!err.file) {
+    return;
+  }
 
-    if (err.file === "stdin") {
-        // eslint-disable-next-line no-param-reassign
-        err.file = resourcePath;
-    }
+  let msg = err.message;
 
-    // node-sass returns UNIX-style paths
+  if (err.file === 'stdin') {
     // eslint-disable-next-line no-param-reassign
-    err.file = path.normalize(err.file);
+    err.file = resourcePath;
+  }
 
-    // The 'Current dir' hint of node-sass does not help us, we're providing
-    // additional information by reading the err.file property
-    msg = msg.replace(/\s*Current dir:\s*/, "");
+  // node-sass returns UNIX-style paths
+  // eslint-disable-next-line no-param-reassign
+  err.file = path.normalize(err.file);
 
-    // eslint-disable-next-line no-param-reassign
-    err.message = `${getFileExcerptIfPossible(err) +
-        msg.charAt(0).toUpperCase() + msg.slice(1) + os.EOL 
-        }      in ${  err.file  } (line ${  err.line  }, column ${  err.column  })`;
+  // The 'Current dir' hint of node-sass does not help us, we're providing
+  // additional information by reading the err.file property
+  msg = msg.replace(/\s*Current dir:\s*/, '');
+
+  // eslint-disable-next-line no-param-reassign
+  err.message = `${getFileExcerptIfPossible(err) +
+    msg.charAt(0).toUpperCase() +
+    msg.slice(1) +
+    os.EOL}      in ${err.file} (line ${err.line}, column ${err.column})`;
 }
 
 /**
@@ -62,17 +63,17 @@ function formatSassError(err, resourcePath) {
  * @returns {string}
  */
 function getFileExcerptIfPossible(err) {
-    try {
-        const content = fs.readFileSync(err.file, "utf8");
+  try {
+    const content = fs.readFileSync(err.file, 'utf8');
 
-        return `${os.EOL +
-            content.split(os.EOL)[err.line - 1] + os.EOL +
-            new Array(err.column - 1).join(" ")  }^${  os.EOL 
-            }      `;
-    } catch (ignoreErr) {
-        // If anything goes wrong here, we don't want any errors to be reported to the user
-        return "";
-    }
+    return `${os.EOL +
+      content.split(os.EOL)[err.line - 1] +
+      os.EOL +
+      new Array(err.column - 1).join(' ')}^${os.EOL}      `;
+  } catch (ignoreErr) {
+    // If anything goes wrong here, we don't want any errors to be reported to the user
+    return '';
+  }
 }
 
 module.exports = formatSassError;

lib/importsToResolve.js

@@ -1,8 +1,8 @@
-"use strict";
+'use strict';
 
-const path = require("path");
+const path = require('path');
 
-const utils = require("loader-utils");
+const utils = require('loader-utils');
 
 const matchModuleImport = /^~([^/]+|@[^/]+[/][^/]+)$/;
 
@@ -16,46 +16,47 @@ const matchModuleImport = /^~([^/]+|@[^/]+[/][^/]+)$/;
  * @returns {Array<string>}
  */
 function importsToResolve(url) {
-    const request = utils.urlToRequest(url);
-    // Keep in mind: ext can also be something like '.datepicker' when the true extension is omitted and the filename contains a dot.
-    // @see https://github.com/webpack-contrib/sass-loader/issues/167
-    const ext = path.extname(request);
-
-    if (matchModuleImport.test(url)) {
-        return [request, url];
-    }
-
-    // libsass' import algorithm works like this:
-
-    // In case there is a file extension...
-    //   - If the file is a CSS-file, do not include it all, but just link it via @import url().
-    //   - The exact file name must match (no auto-resolving of '_'-modules).
-    if (ext === ".css") {
-        return [];
-    }
-    if (ext === ".scss" || ext === ".sass") {
-        return [request, url];
-    }
-
-    // In case there is no file extension...
-    //   - Prefer modules starting with '_'.
-    //   - File extension precedence: .scss, .sass, .css.
-    const basename = path.basename(request);
-
-    if (basename.charAt(0) === "_") {
-        return [
-            `${ request }.scss`, `${ request }.sass`, `${ request }.css`,
-            url
-        ];
-    }
-
-    const dirname = path.dirname(request);
-
-    return [
-        `${ dirname }/_${ basename }.scss`, `${ dirname }/_${ basename }.sass`, `${ dirname }/_${ basename }.css`,
-        `${ request }.scss`, `${ request }.sass`, `${ request }.css`,
-        url
-    ];
+  const request = utils.urlToRequest(url);
+  // Keep in mind: ext can also be something like '.datepicker' when the true extension is omitted and the filename contains a dot.
+  // @see https://github.com/webpack-contrib/sass-loader/issues/167
+  const ext = path.extname(request);
+
+  if (matchModuleImport.test(url)) {
+    return [request, url];
+  }
+
+  // libsass' import algorithm works like this:
+
+  // In case there is a file extension...
+  //   - If the file is a CSS-file, do not include it all, but just link it via @import url().
+  //   - The exact file name must match (no auto-resolving of '_'-modules).
+  if (ext === '.css') {
+    return [];
+  }
+  if (ext === '.scss' || ext === '.sass') {
+    return [request, url];
+  }
+
+  // In case there is no file extension...
+  //   - Prefer modules starting with '_'.
+  //   - File extension precedence: .scss, .sass, .css.
+  const basename = path.basename(request);
+
+  if (basename.charAt(0) === '_') {
+    return [`${request}.scss`, `${request}.sass`, `${request}.css`, url];
+  }
+
+  const dirname = path.dirname(request);
+
+  return [
+    `${dirname}/_${basename}.scss`,
+    `${dirname}/_${basename}.sass`,
+    `${dirname}/_${basename}.css`,
+    `${request}.scss`,
+    `${request}.sass`,
+    `${request}.css`,
+    url,
+  ];
 }
 
 module.exports = importsToResolve;