Use master for SOURCE_VERSION when building via Heroku deploy buttons

The SOURCE_VERSION variable may not be filled in by Heroku.
SectorLabs · May 18, 2017 · d7f2043 · d7f2043
1 parent 1df15f8
commit d7f2043
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/bin/compile b/bin/compile
@@ -48,7 +48,7 @@ echo "-----> Installed SSH key from GIT_SSH_KEY"
 
 # checkout the revision that's being deployed
 git fetch -q --depth 1 origin -a > /dev/null
-git checkout -q $SOURCE_VERSION > /dev/null
+git checkout -q ${SOURCE_VERSION:-master} > /dev/null
 echo "-----> Fetched shallow history from $GIT_REPO_URL"
 
 # initialize all the submodules