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Add the ability to short circuit CI builds for docs-only changes #5281

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Merged
merged 1 commit into from
Apr 28, 2018
Merged

Add the ability to short circuit CI builds for docs-only changes #5281

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22 changes: 22 additions & 0 deletions .travis/run.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,28 @@
set -e
set -x

# Short circuit tests and linting jobs if there are no code changes involved.
if [[ $TOXENV != docs ]]; then
if [[ "$TRAVIS_PULL_REQUEST" == "false" ]]
then
echo "This is not a PR -- will do a complete build."
else
# Pull requests are slightly complicated because $TRAVIS_COMMIT_RANGE
# may include more changes than desired if the history is convoluted.
# Instead, explicitly fetch the base branch and compare against the
# merge-base commit.
git fetch -q origin +refs/heads/$TRAVIS_BRANCH
changes=$(git diff --name-only HEAD $(git merge-base HEAD FETCH_HEAD))
echo "Files changed:"
echo "$changes"
if ! echo "$changes" | grep -qvE '(\.rst$)|(^docs)|(^news)|(^\.github)'
then
echo "Only Documentation was updated -- skipping build."
exit
fi
fi
fi

if [[ $TOXENV == py* ]]; then
# Run unit tests
tox -- -m unit
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