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Fix changed file detection on travis when the PR commits predate master commits. #3129

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merged 3 commits into from
Jan 27, 2018
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Fix changed file detection on travis when the PR commits predate master commits. #3129

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df65aff
Fix changed file detection on travis when the PR commits predate mast…
ammaraskar Jan 26, 2018
eece657
Fix up comments in the travis file
ammaraskar Jan 27, 2018
ef6f8e8
Fix typo
berkerpeksag Jan 27, 2018
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16 changes: 15 additions & 1 deletion .travis.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -83,7 +83,21 @@ matrix:
before_script:
- |
set -e
if ! git diff --name-only $TRAVIS_COMMIT_RANGE | grep -qvE '(\.rst$)|(^Doc)|(^Misc)'
if [ "$TRAVIS_PULL_REQUEST" = "false" ]; then
files_changed=$(git diff --name-only $TRAVIS_COMMIT_RANGE)
else
# Pull requests are slightly complicated because merging the PR commit without
# rebasing causes it to retain its old commit date. Meaning in history if any
# commits have been made on master that post-date it, they will be accidentally
# included in the diff if we use the TRAVIS_COMMIT_RANGE variable.
files_changed=$(git diff --name-only HEAD $(git merge-base HEAD $TRAVIS_BRANCH))
fi

# Prints changed files in this commit to help debug doc-only build issues.
echo "Files changed: "
echo $files_changed

if ! echo $files_changed | grep -qvE '(\.rst$)|(^Doc)|(^Misc)'
then
echo "Only docs were updated, stopping build process."
exit
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