use a dataDir for the fake cert

bin/servez

@@ -76,12 +76,15 @@ try {
   process.exit(1);  // eslint-disable-line
 }
 
+const dataDir = require('../src/appdata')('servez-cli');
+
 const colorSupport = require('color-support') || {};
 const c = require('ansi-colors');
 c.enabled = colorSupport.hasBasic;
 const Servez = require('servez-lib');
 const server = new Servez(Object.assign({
   root,
+  dataDir,
   logger: {
     log: console.log.bind(console),
     error: (...args) => {

package.json

@@ -26,7 +26,7 @@
     "ansi-colors": "^4.1.1",
     "color-support": "^1.1.3",
     "optionator": "^0.8.2",
-    "servez-lib": "^1.7.0"
+    "servez-lib": "^2.0.0"
   },
   "bin": {
     "servez": "./bin/servez"

src/appdata.js

@@ -0,0 +1,69 @@
+/*
+Copyright 2018, Greggman.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * Neither the name of Greggman. nor the names of their
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+const fs = require('fs');
+const path = require('path');
+
+function mkdir(dirPath) {
+  if (!fileExists(dirPath)) {
+    fs.mkdirSync(dirPath);
+  }
+}
+
+function getDataDirPath(dirName) {
+  if (process.platform.toLowerCase() === 'darwin') {
+    return path.join(process.env.HOME, 'Library', 'Application Support', dirName);
+  } else if (process.platform.substring(0, 3).toLowerCase() === 'win') {
+    return path.join(process.env.LOCALAPPDATA || process.env.APPDATA, dirName);
+  } else {
+    const configDir = path.join(process.env.HOME, '.config');
+    return path.join(process.env.HOME, dirName);
+  }
+}
+
+function fileExists(filename) {
+  try {
+    const stat = fs.statSync(filename);
+    return !!stat;
+  } catch (e) {
+    return false;
+  }
+}
+
+function getDataDir(dirName) {
+  const dataDir = getDataDirPath(dirName);
+  mkdir(dataDir);
+  return dataDir;
+}
+
+module.exports = getDataDir;