[Packaging] Separate builds for trusty/xenial

Besides the version, the two generated debs will be identical.
But Launchpad won't let me upload the exact same file to the same PPA
twice (once for trusty and once for xenial). So, I have to give them a
different name and build twice.

packaging/deb/Dockerfile

@@ -9,7 +9,7 @@ RUN apt-get update \
         lintian \
     && rm -rf /var/lib/apt/lists/*
 
-ENV DEBFULLNAME "NVIDIA CORPORATION"
+ENV DEBFULLNAME "DIGITS Development Team"
 ENV DEBEMAIL "[email protected]"
 
 ARG UPSTREAM_VERSION

scripts/travis/deb-build.sh

@@ -8,5 +8,40 @@ ROOT_DIR=$( dirname "$(dirname "$LOCAL_DIR")")
 set -x
 
 git fetch --tags
-$ROOT_DIR/packaging/deb/build.sh
+cd $ROOT_DIR/packaging/deb
 
+DEBIAN_REVISION=1ppa1~trusty ./build.sh
+DEBIAN_REVISION=1ppa1~xenial ./build.sh
+
+if [ "$TRAVIS" != "true" ]; then
+    echo "Skipping PPA uploads for non-Travis build."
+    exit 0
+fi
+if [ "$TRAVIS_REPO_SLUG" != "NVIDIA/DIGITS" ]; then
+    echo "Skipping PPA uploads for non-DIGITS fork build."
+    exit 0
+fi
+if [ "$TRAVIS_PULL_REQUEST" != "false" ]; then
+    echo "Skipping PPA uploads for pull request build."
+    exit 0
+fi
+if [ -n "$TRAVIS_TAG" ]; then
+    PPA_NAME=stable
+elif [ "$TRAVIS_BRANCH" == "master" ]; then
+    PPA_NAME=dev
+else
+    echo "Skipping PPA uploads for non-master branch build"
+    exit 0
+fi
+
+echo "Uploading to \"$PPA_NAME\" PPA ..."
+
+pushd .
+cd dist/*trusty
+find .
+popd
+
+pushd .
+cd dist/*xenial
+find .
+popd