[gjs] CI: print the log in case of a failing build

[Philip Chimento <pchimento src gnome org>]

commit d76f7d0d7ff2dcdc2cadc360a2da2995209080f1
Author: Claudio André <claudioandre br gmail com>
Date:   Tue Feb 14 07:04:38 2017 -0200

    CI: print the log in case of a failing build
    
    https://bugzilla.gnome.org/show_bug.cgi?id=776549

 .travis.yml       |    7 +++++++
 test/travis-ci.sh |    4 ++++
 2 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/.travis.yml b/.travis.yml
index 122c55c..4ac2794 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -36,3 +36,10 @@ before_script:
 script:
   - docker run -v $(pwd):/cwd -v $(pwd)/gjs/test/travis-ci.sh:/travis-ci.sh -e BASE=$BASE -e OS=$IMAGE -e 
CC=$CCO local/$NAME bash -e -c "/travis-ci.sh GJS"
 
+after_failure:
+  - echo '-- FAILURE --'
+  - 'if [[ -f $(pwd)/.cache/jhbuild/build/gjs/test-suite.log ]]; then
+        cat $(pwd)/.cache/jhbuild/build/gjs/test-suite.log;
+    else
+        echo "-- NO LOG FILE FOUND --";
+    fi'
diff --git a/test/travis-ci.sh b/test/travis-ci.sh
index c71da93..0cfc580 100755
--- a/test/travis-ci.sh
+++ b/test/travis-ci.sh
@@ -54,6 +54,10 @@ function do_Set_Env(){
     echo
     echo '-- Set Environment --'
 
+    #Save cache on host
+    mkdir -p /cwd/.cache
+    export XDG_CACHE_HOME=/cwd/.cache
+
     if [[ -z $DISPLAY ]]; then
         export DISPLAY=":0"
     fi