Merge pull request #64 from lgeiger/download-node

Use Node to download zeromq vs. wget

Author: rgbkrk

README.md

@@ -58,7 +58,6 @@ clone your fork to your system. Be sure you have [`git-lfs`](https://git-lfs.git
 **Prerequisites for Linux**
 - `python` (`v2.7` recommended, `v3.x.x` is not supported)
 - `make`
-- `wget`
 - A proper C/C++ compiler toolchain, like [GCC](https://gcc.gnu.org/)
 
 Use your distribution's package manager to install.
@@ -67,7 +66,6 @@ Use your distribution's package manager to install.
 
 - `python` (`v2.7` recommended, `v3.x.x` is not supported): already installed on Mac OS X
 - `Xcode Command Line Tools`: Can be installed with `xcode-select --install`
-- `wget`: Can be installed via [Homebrew](http://brew.sh) with `brew install wget`
 
 **Prerequisites for Windows**
 

build_libzmq.sh

@@ -17,7 +17,7 @@ export CFLAGS=-fPIC
 export CXXFLAGS=-fPIC
 export PKG_CONFIG_PATH=$ZMQ_PREFIX/lib/pkgconfig
 
-test -f zeromq-$ZMQ.tar.gz || wget https://github.com/$ZMQ_REPO/releases/download/v$ZMQ/zeromq-$ZMQ.tar.gz -O zeromq-$ZMQ.tar.gz
+test -f zeromq-$ZMQ.tar.gz || ZMQ=$ZMQ ZMQ_REPO=$ZMQ_REPO node ../download-zmq.js 2>&1 > ../zmq-build.log
 test -d $ZMQ_SRC_DIR || tar xzf zeromq-$ZMQ.tar.gz
 cd $ZMQ_SRC_DIR
 

download-zmq.js

@@ -0,0 +1,22 @@
+var https = require('https');
+var fs = require('fs');
+var url = require('url');
+
+var TAR_URL = 'https://github.com/' + process.env.ZMQ_REPO + '/releases/download/v' + process.env.ZMQ + '/zeromq-' + process.env.ZMQ + '.tar.gz';
+var FILE_NAME = 'zeromq-' + process.env.ZMQ + '.tar.gz';
+
+function writeToFile(response) {
+  response.pipe(fs.createWriteStream(FILE_NAME));
+}
+
+https.get(TAR_URL, function(response) {
+  if (response.statusCode > 300 && response.statusCode < 400 && response.headers.location) {
+    if (url.parse(response.headers.location).hostname) {
+      https.get(response.headers.location, writeToFile);
+    } else {
+      https.get(url.resolve(url.parse(TAR_URL).hostname, response.headers.location), writeToFile);
+    }
+  } else {
+    writeToFile(response);
+  }
+});