virtualx-engine/misc/travis/clang-format.sh
Rémi Verschelde 51c5a12f43 Travis: Run clang-format static check
Commits or PRs that do not respect the clang-format style that we
enforce will fail the test.

Adding ubuntu-toolchain-r-test as its libstdc++ is necessary to install
libllvm-3.9.

(cherry picked from commit 6aee289b3e)
2017-03-19 16:14:53 +01:00

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#!/bin/sh
CLANG_FORMAT=clang-format-3.9
if [ "$TRAVIS_PULL_REQUEST" != "false" ]; then
# Check the whole commit range against $TRAVIS_BRANCH, the base merge branch
# We could use $TRAVIS_COMMIT_RANGE but it doesn't play well with force pushes
RANGE="$(git rev-parse $TRAVIS_BRANCH) HEAD"
else
# Test only the last commit
RANGE=HEAD
fi
FILES=$(git diff-tree --no-commit-id --name-only -r $RANGE | grep -v thirdparty/ | grep -e "\.cpp$" -e "\.h$" -e "\.inc$")
echo "Checking files:\n$FILES"
# create a random filename to store our generated patch
prefix="static-check-clang-format"
suffix="$(date +%s)"
patch="/tmp/$prefix-$suffix.patch"
for file in $FILES; do
"$CLANG_FORMAT" -style=file "$file" | \
diff -u "$file" - | \
sed -e "1s|--- |--- a/|" -e "2s|+++ -|+++ b/$file|" >> "$patch"
done
# if no patch has been generated all is ok, clean up the file stub and exit
if [ ! -s "$patch" ] ; then
printf "Files in this commit comply with the clang-format rules.\n"
rm -f "$patch"
exit 0
fi
# a patch has been created, notify the user and exit
printf "\n*** The following differences were found between the code to commit "
printf "and the clang-format rules:\n\n"
cat "$patch"
printf "\n*** Aborting, please fix your commit(s) with 'git commit --amend' or 'git rebase -i <hash>'\n"
exit 1