Updated .travis.yml

.travis.yml

@@ -3,20 +3,15 @@ language: go
 cache:
   directories:
   - $HOME/opus
+  - $HOME/bin
   - $TRAVIS_BUILD_DIR/.vendor
 
 before_script:
-    - wget http://johnvansickle.com/ffmpeg/releases/ffmpeg-release-64bit-static.tar.xz -O /tmp/ffmpeg.tar.xz
-    - tar -xvf /tmp/ffmpeg.tar.xz --strip 1 --no-anchored ffmpeg ffprobe
-    - chmod a+rx ffmpeg ffprobe
-    - mv ff* ~/bin
-    - curl https://yt-dl.org/downloads/2015.07.28/youtube-dl -o ~/bin/youtube-dl
-    - chmod a+rx ~/bin/youtube-dl
-    - bash install-opus.sh
-    - export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:$HOME/opus/lib/pkgconfig
+    - bash install-dependencies.sh
 
 install:
     - ls -R $HOME/opus
 
 env: 
     - PATH=$PATH:~/bin/
+    - PKG_CONFIG_PATH=$PKG_CONFIG_PATH:$HOME/opus/lib/pkgconfig

install-dependencies.sh

@@ -0,0 +1,29 @@
+#!/bin/sh
+set -e
+
+# check to see if ffmpeg is installed
+if [ ! -f "$HOME/bin/ffmpeg" ]; then
+    wget http://johnvansickle.com/ffmpeg/releases/ffmpeg-release-64bit-static.tar.xz -O /tmp/ffmpeg.tar.xz
+    tar -xvf /tmp/ffmpeg.tar.xz --strip 1 --no-anchored ffmpeg ffprobe
+    chmod a+rx ffmpeg ffprobe
+    mv ff* $HOME/bin
+else
+  echo 'Using cached version of ffmpeg.';
+fi
+
+# check to see if opus is installed
+if [ ! -d "$HOME/opus/lib" ]; then
+    wget http://downloads.xiph.org/releases/opus/opus-1.0.3.tar.gz
+    tar xzvf opus-1.0.3.tar.gz
+    cd opus-1.0.3 && ./configure --prefix=$HOME/opus && make && make install
+else
+  echo 'Using cached version of opus.';
+fi
+
+# check to see if youtube-dl is installed
+if [ ! -f "$HOME/bin/youtube-dl" ]; then
+    curl https://yt-dl.org/downloads/2015.07.28/youtube-dl -o ~/bin/youtube-dl
+    chmod a+rx ~/bin/youtube-dl
+else
+  echo 'Using cached version of youtube-dl.';
+fi

install-opus.sh

@@ -1,10 +0,0 @@
-#!/bin/sh
-set -e
-# check to see if opus folder is empty
-if [ ! -d "$HOME/opus/lib" ]; then
-    wget http://downloads.xiph.org/releases/opus/opus-1.0.3.tar.gz
-    tar xzvf opus-1.0.3.tar.gz
-    cd opus-1.0.3 && ./configure --prefix=$HOME/opus && make && make install
-else
-  echo 'Using cached directory.';
-fi