Merge pull request adafruit#1360 from adafruit/tannewt-patch-5

Make sure the commit builds include version info

Author: dhalbert

.travis.yml

@@ -4,7 +4,7 @@ language: c
 compiler:
  - gcc
 git:
- depth: 6
+ depth: 1
 
 # Each item under 'env' is a separate Travis job to execute.
 # They run in separate environments, so each one must take the time
@@ -44,6 +44,11 @@ notifications:
  on_error: always
 
 before_script:
+ # Expand the git tree back to 4.0.0-alpha.1 and then fetch the latest tag.
+ - LAST_TAG=`git ls-remote --quiet --tags --sort=version:refname | egrep -o "refs/tags/[0-9]+.*\$" | tail -n 1`
+ - git fetch --shallow-exclude=4.0.0-alpha.1
+ - git fetch --depth 1 origin $LAST_TAG:$LAST_TAG
+ - git describe --dirty --always --tags
  - function var_search () { case "$1" in *$2*) true;; *) false;; esac; }
  - sudo dpkg --add-architecture i386