Move Docusaurus 1 files into directory (#966)

* Move Docusaurus 1 into v1 directory

* Update Circle CI commands for new v1 dir

* Remove OC

* Fix tests

v1/lib/server/utils.js

@@ -0,0 +1,75 @@
+/**
+ * Copyright (c) 2017-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+const cssnano = require('cssnano');
+const autoprefixer = require('autoprefixer');
+const postcss = require('postcss');
+const path = require('path');
+const escapeStringRegexp = require('escape-string-regexp');
+
+function getSubDir(file, refDir) {
+  const subDir = path.dirname(path.relative(refDir, file)).replace('\\', '/');
+  return subDir !== '.' && !subDir.includes('..') ? subDir : null;
+}
+
+function getLanguage(file, refDir) {
+  const separator = escapeStringRegexp(path.sep);
+  const baseDir = escapeStringRegexp(path.basename(refDir));
+  const regexSubFolder = new RegExp(
+    `${baseDir}${separator}(.*?)${separator}.*`,
+  );
+  const match = regexSubFolder.exec(file);
+
+  // Avoid misinterpreting subdirectory as language
+  const env = require('./env.js');
+  if (match && env.translation.enabled) {
+    const enabledLanguages = env.translation
+      .enabledLanguages()
+      .map(language => language.tag);
+    if (enabledLanguages.indexOf(match[1]) !== -1) {
+      return match[1];
+    }
+  }
+  return null;
+}
+
+function isSeparateCss(file, separateDirs) {
+  if (!separateDirs) {
+    return false;
+  }
+  for (let i = 0; i < separateDirs.length; i++) {
+    if (file.includes(separateDirs[i])) {
+      return true;
+    }
+  }
+  return false;
+}
+
+function minifyCss(cssContent) {
+  return cssnano
+    .process(cssContent, {
+      preset: 'default',
+      zindex: false,
+    })
+    .then(result => result.css);
+}
+
+function autoPrefixCss(cssContent) {
+  return postcss([autoprefixer])
+    .process(cssContent, {
+      from: undefined,
+    })
+    .then(result => result.css);
+}
+
+module.exports = {
+  getSubDir,
+  getLanguage,
+  isSeparateCss,
+  minifyCss,
+  autoPrefixCss,
+};