Add support of customizing endpoint for S3-compatiable services

lib/deployer.js

@@ -15,6 +15,9 @@ module.exports = function(args) {
       region: args.region
     }
   };
+  if (args.endpoint) {
+    config.endpoint = args.endpoint;
+  }
   if (!config.s3Options.accessKeyId && !config.s3Options.secretAccessKey && args.aws_cli_profile) {
     /* User configured their access and secret keys in ~/.aws/credentials, check there */
     var iniFile = path.join(process.env.HOME, '.aws');
@@ -52,6 +55,7 @@ module.exports = function(args) {
     help += '    [headers]: <JSON headers>   # Optional, see README.md file\n';
     help += '    [prefix]: <prefix>          # Optional, prefix ending in /\n';
     help += '    [delete_removed]: <delete>  # Optional, if true will delete removed files from S3 /\n\n';
+    help += '    [endpoint]: <endpoint>      # Optional, for S3 compatiable services\n'
     help += 'For more help, you can check the docs: ' + chalk.underline('https://github.com/nt3rp/hexo-deployer-s3');
 
     console.log(help);