Infra: newer syntax and upgrade deps to latest stable versions

bin/gh-pages-clean.js

@@ -1,6 +1,6 @@
 #!/usr/bin/env node
 
-var ghpages = require('../lib/index');
+const ghpages = require('../lib/index');
 
 function main() {
   ghpages.clean();

bin/gh-pages.js

@@ -1,9 +1,9 @@
 #!/usr/bin/env node
 
-var ghpages = require('../lib/index');
-var program = require('commander');
-var path = require('path');
-var pkg = require('../package.json');
+const ghpages = require('../lib/index');
+const program = require('commander');
+const path = require('path');
+const pkg = require('../package.json');
 
 function main(args) {
   program

lib/git.js

@@ -1,15 +1,15 @@
-var cp = require('child_process');
-var fs = require('fs-extra');
-var path = require('path');
-var util = require('util');
+const cp = require('child_process');
+const fs = require('fs-extra');
+const path = require('path');
+const util = require('util');
 
 /**
  * @constructor
  * @param {number} code Error code.
  * @param {string} message Error message.
  */
 function ProcessError(code, message) {
-  var callee = arguments.callee;
+  const callee = arguments.callee;
   Error.apply(this, [message]);
   Error.captureStackTrace(this, callee);
   this.code = code;
@@ -27,18 +27,18 @@ util.inherits(ProcessError, Error);
  */
 function spawn(exe, args, cwd) {
   return new Promise(function(resolve, reject) {
-    var child = cp.spawn(exe, args, {cwd: cwd || process.cwd()});
-    var buffer = [];
+    const child = cp.spawn(exe, args, {cwd: cwd || process.cwd()});
+    const buffer = [];
     child.stderr.on('data', function(chunk) {
       buffer.push(chunk.toString());
     });
     child.stdout.on('data', function(chunk) {
       buffer.push(chunk.toString());
     });
     child.on('close', function(code) {
-      var output = buffer.join('');
+      const output = buffer.join('');
       if (code) {
-        var msg = output || 'Process failed: ' + code;
+        const msg = output || 'Process failed: ' + code;
         reject(new ProcessError(code, msg));
       } else {
         resolve(output);
@@ -116,7 +116,7 @@ Git.prototype.fetch = function(remote) {
  * @return {Promise} A promise.
  */
 Git.prototype.checkout = function(remote, branch) {
-  var treeish = remote + '/' + branch;
+  const treeish = remote + '/' + branch;
   return this.exec('ls-remote', '--exit-code', '.', treeish).then(
     function() {
       // branch exists on remote, hard reset
@@ -202,7 +202,7 @@ Git.prototype.push = function(remote, branch) {
 Git.prototype.getRemoteUrl = function(remote) {
   return this.exec('config', '--get', 'remote.' + remote + '.url')
     .then(function(git) {
-      var repo = git.output && git.output.split(/[\n\r]/).shift();
+      const repo = git.output && git.output.split(/[\n\r]/).shift();
       if (repo) {
         return repo;
       } else {
@@ -238,7 +238,7 @@ Git.clone = function clone(repo, dir, branch, options) {
       return Promise.resolve(new Git(dir, options.git));
     } else {
       return fs.mkdirp(path.dirname(path.resolve(dir))).then(function() {
-        var args = [
+        const args = [
           'clone',
           repo,
           dir,

lib/index.js

@@ -1,12 +1,12 @@
-var Git = require('./git');
-var filenamify = require('filenamify-url');
-var copy = require('./util').copy;
-var fs = require('fs-extra');
-var globby = require('globby');
-var path = require('path');
-var util = require('util');
+const Git = require('./git');
+const filenamify = require('filenamify-url');
+const copy = require('./util').copy;
+const fs = require('fs-extra');
+const globby = require('globby');
+const path = require('path');
+const util = require('util');
 
-var log = util.debuglog('gh-pages');
+const log = util.debuglog('gh-pages');
 
 function getCacheDir() {
   return path.relative(process.cwd(), path.resolve(__dirname, '../.cache'));
@@ -16,7 +16,7 @@ function getRepo(options) {
   if (options.repo) {
     return Promise.resolve(options.repo);
   } else {
-    var git = new Git(process.cwd(), options.git);
+    const git = new Git(process.cwd(), options.git);
     return git.getRemoteUrl(options.remote);
   }
 }
@@ -33,7 +33,7 @@ exports.publish = function publish(basePath, config, callback) {
     config = {};
   }
 
-  var defaults = {
+  const defaults = {
     dest: '.',
     add: false,
     git: 'git',
@@ -48,7 +48,7 @@ exports.publish = function publish(basePath, config, callback) {
     silent: false
   };
 
-  var options = Object.assign({}, defaults, config);
+  const options = Object.assign({}, defaults, config);
 
   if (!callback) {
     callback = function(err) {
@@ -76,7 +76,7 @@ exports.publish = function publish(basePath, config, callback) {
     return;
   }
 
-  var files = globby
+  const files = globby
     .sync(options.src, {
       cwd: basePath,
       dot: options.dotfiles
@@ -92,15 +92,15 @@ exports.publish = function publish(basePath, config, callback) {
     return;
   }
 
-  var only = globby.sync(options.only, {cwd: basePath}).map(function(file) {
+  const only = globby.sync(options.only, {cwd: basePath}).map(function(file) {
     return path.join(options.dest, file);
   });
 
-  var repoUrl;
+  let repoUrl;
   return getRepo(options)
     .then(function(repo) {
       repoUrl = repo;
-      var clone = options.clone;
+      let clone = options.clone;
       if (!clone) {
         clone = path.join(getCacheDir(), filenamify(repo));
       }
@@ -110,7 +110,7 @@ exports.publish = function publish(basePath, config, callback) {
     .then(function(git) {
       return git.getRemoteUrl(options.remote).then(function(url) {
         if (url !== repoUrl) {
-          var message =
+          const message =
             'Remote url mismatch.  Got "' +
             url +
             '" ' +
@@ -147,13 +147,11 @@ exports.publish = function publish(basePath, config, callback) {
     })
     .then(function(git) {
       log('Copying files');
-      return copy(
-        files,
-        basePath,
-        path.join(git.cwd, options.dest)
-      ).then(function() {
-        return git;
-      });
+      return copy(files, basePath, path.join(git.cwd, options.dest)).then(
+        function() {
+          return git;
+        }
+      );
     })
     .then(function(git) {
       log('Adding all');

lib/util.js

@@ -1,20 +1,20 @@
-var path = require('path');
+const path = require('path');
 
-var async = require('async');
-var fs = require('graceful-fs');
+const async = require('async');
+const fs = require('graceful-fs');
 
 /**
  * Generate a list of unique directory paths given a list of file paths.
  * @param {Array.<string>} files List of file paths.
  * @return {Array.<string>} List of directory paths.
  */
-var uniqueDirs = (exports.uniqueDirs = function(files) {
-  var dirs = {};
+const uniqueDirs = (exports.uniqueDirs = function(files) {
+  const dirs = {};
   files.forEach(function(filepath) {
-    var parts = path.dirname(filepath).split(path.sep);
-    var partial = parts[0] || '/';
+    const parts = path.dirname(filepath).split(path.sep);
+    let partial = parts[0] || '/';
     dirs[partial] = true;
-    for (var i = 1, ii = parts.length; i < ii; ++i) {
+    for (let i = 1, ii = parts.length; i < ii; ++i) {
       partial = path.join(partial, parts[i]);
       dirs[partial] = true;
     }
@@ -29,19 +29,19 @@ var uniqueDirs = (exports.uniqueDirs = function(files) {
  * @param {string} b Second path.
  * @return {number} Comparison.
  */
-var byShortPath = (exports.byShortPath = function(a, b) {
-  var aParts = a.split(path.sep);
-  var bParts = b.split(path.sep);
-  var aLength = aParts.length;
-  var bLength = bParts.length;
-  var cmp = 0;
+const byShortPath = (exports.byShortPath = function(a, b) {
+  const aParts = a.split(path.sep);
+  const bParts = b.split(path.sep);
+  const aLength = aParts.length;
+  const bLength = bParts.length;
+  let cmp = 0;
   if (aLength < bLength) {
     cmp = -1;
   } else if (aLength > bLength) {
     cmp = 1;
   } else {
-    var aPart, bPart;
-    for (var i = 0; i < aLength; ++i) {
+    let aPart, bPart;
+    for (let i = 0; i < aLength; ++i) {
       aPart = aParts[i];
       bPart = bParts[i];
       if (aPart < bPart) {
@@ -61,7 +61,7 @@ var byShortPath = (exports.byShortPath = function(a, b) {
  * @param {Array.<string>} files List of file paths.
  * @return {Array.<string>} List of directory paths ordered by path length.
  */
-var dirsToCreate = (exports.dirsToCreate = function(files) {
+const dirsToCreate = (exports.dirsToCreate = function(files) {
   return uniqueDirs(files).sort(byShortPath);
 });
 
@@ -70,21 +70,21 @@ var dirsToCreate = (exports.dirsToCreate = function(files) {
  * @param {Object} obj Object with src and dest properties.
  * @param {function(Error)} callback Callback
  */
-var copyFile = (exports.copyFile = function(obj, callback) {
-  var called = false;
+const copyFile = (exports.copyFile = function(obj, callback) {
+  let called = false;
   function done(err) {
     if (!called) {
       called = true;
       callback(err);
     }
   }
 
-  var read = fs.createReadStream(obj.src);
+  const read = fs.createReadStream(obj.src);
   read.on('error', function(err) {
     done(err);
   });
 
-  var write = fs.createWriteStream(obj.dest);
+  const write = fs.createWriteStream(obj.dest);
   write.on('error', function(err) {
     done(err);
   });
@@ -126,12 +126,12 @@ function makeDir(path, callback) {
  */
 exports.copy = function(files, base, dest) {
   return new Promise(function(resolve, reject) {
-    var pairs = [];
-    var destFiles = [];
+    const pairs = [];
+    const destFiles = [];
     files.forEach(function(file) {
-      var src = path.resolve(base, file);
-      var relative = path.relative(base, src);
-      var target = path.join(dest, relative);
+      const src = path.resolve(base, file);
+      const relative = path.relative(base, src);
+      const target = path.join(dest, relative);
       pairs.push({
         src: src,
         dest: target