Add ecstatic's gzip mode

Author: SteveVanOpstal

README.md

@@ -44,6 +44,8 @@ This will install `http-server` globally so that it may be run from the command
 
 `-i` Display autoIndex (defaults to 'True')
 
+`-g` or `--gzip` When enabled (defaults to 'False') it will serve `./public/some-file.js.gz` in place of `./public/some-file.js` when a gzipped version of the file exists and the request accepts gzip encoding.
+
 `-e` or `--ext` Default file extension if none supplied (defaults to 'html')
 
 `-s` or `--silent` Suppress log messages from output

bin/http-server

@@ -22,6 +22,7 @@ if (argv.h || argv.help) {
     '  -a           Address to use [0.0.0.0]',
     '  -d           Show directory listings [true]',
     '  -i           Display autoIndex [true]',
+    '  -g --gzip    Serve gzip files when possible [false]',
     '  -e --ext     Default file extension if none supplied [none]',
     '  -s --silent  Suppress log messages from output',
     '  --cors[=headers]   Enable CORS via the "Access-Control-Allow-Origin" header',
@@ -96,6 +97,7 @@ function listen(port) {
     cache: argv.c,
     showDir: argv.d,
     autoIndex: argv.i,
+    gzip: argv.g || argv.gzip,
     robots: argv.r || argv.robots,
     ext: argv.e || argv.ext,
     logFn: logger.request,

lib/http-server.js

@@ -46,6 +46,7 @@ function HttpServer(options) {
   this.cache = options.cache === undefined ? 3600 : options.cache; // in seconds.
   this.showDir = options.showDir !== 'false';
   this.autoIndex = options.autoIndex !== 'false';
+  this.gzip = options.gzip === true;
   this.contentType = options.contentType || 'application/octet-stream';
 
   if (options.ext) {
@@ -97,6 +98,7 @@ function HttpServer(options) {
     showDir: this.showDir,
     autoIndex: this.autoIndex,
     defaultExt: this.ext,
+    gzip: this.gzip,
     contentType: this.contentType,
     handleError: typeof options.proxy !== 'string'
   }));