From 39b17fd5a394e81ca54699e05acd3f033d7151d7 Mon Sep 17 00:00:00 2001
From: UdjinM6 <UdjinM6@users.noreply.github.com>
Date: Fri, 24 Jan 2020 19:59:06 +0300
Subject: [PATCH] Fix empty TRAVIS_COMMIT_RANGE for one-commit-branch builds in
 Travis (#3299)

---
 .travis.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 6167b75c8f..0a3ce42f1c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -114,6 +114,8 @@ before_cache:
   - docker save dash-builder-$BUILD_TARGET-$TRAVIS_JOB_NUMBER $(docker history -q dash-builder-$BUILD_TARGET-$TRAVIS_JOB_NUMBER | grep -v \<missing\>) | gzip -2 > $HOME/cache/docker/dash-builder-$BUILD_TARGET.tar.gz
 
 install:
+    # Fix annoying Travis bug: a branch with a single commit has an empty TRAVIS_COMMIT_RANGE sometimes
+    - if [ -z "$TRAVIS_COMMIT_RANGE" ]; then export TRAVIS_COMMIT_RANGE="HEAD~..HEAD"; fi
     # Our scripts try to be Travis agnostic
     - export PULL_REQUEST="$TRAVIS_PULL_REQUEST"
     - export COMMIT_RANGE="$TRAVIS_COMMIT_RANGE"