Merge pull request #1152 from guardicore/speed-up-travis-build

Speed up travis build

.travis.yml

@@ -6,10 +6,15 @@ group: travis_latest
 
 language: python
 
+env:
+  - PIP_CACHE_DIR=$HOME/.cache/pip PIPENV_CACHE_DIR=$HOME/.cache/pipenv
+
 cache:
   - pip
   - directories:
     - "$HOME/.npm"
+    - $PIP_CACHE_DIR
+    - $PIPENV_CACHE_DIR
 
 python:
 - 3.7
@@ -41,16 +46,11 @@ install:
 - node --version
 - npm --version
 
-# linuxbrew (for hugo)
-- git clone https://github.com/Homebrew/brew ~/.linuxbrew/Homebrew
-- mkdir ~/.linuxbrew/bin
-- ln -s ~/.linuxbrew/Homebrew/bin/brew ~/.linuxbrew/bin
-- eval $(~/.linuxbrew/bin/brew shellenv)
-
 # hugo (for documentation)
-- brew install hugo
+- curl --output - -L https://api.github.com/repos/gohugoio/hugo/releases/latest | grep --color=never "browser_download_url.*Linux-64bit.tar.gz" | grep -v extended | cut -d ':' -f2,3 | tr -d '"' | xargs -n 1 curl -L --output hugo.tar.gz
 # print hugo version (useful for debugging documentation build errors)
-- hugo version
+- tar -zxf hugo.tar.gz
+- ./hugo version
 
 script:
 # Check Python code
@@ -79,7 +79,7 @@ script:
 
 # Build documentation
 - cd $TRAVIS_BUILD_DIR/docs
-- hugo --verbose --environment staging
+- ../hugo --verbose --environment staging
 
 # verify swimm
 - cd $TRAVIS_BUILD_DIR