godot/misc/travis/clang-format.sh
Rémi Verschelde e479231b21 Travis: Fix clang-format on non-master branches
`git diff-tree` used to fail on the `3.2` branch (and other non-master
branches) as Travis doesn't actually check that branch from the remote:
```
fatal: ambiguous argument '3.2': unknown revision or path not in the
working tree.
```

The exit code would still be 0 so we'd miss badly formatted commits
targeting stable branches.

We do it manually to ensure that it's going to work as we want it.
2020-02-19 11:37:26 +01:00

47 lines
1.8 KiB
Bash
Executable File

#!/bin/sh
CLANG_FORMAT=clang-format-8
if [ "$TRAVIS_PULL_REQUEST" != "false" ]; then
# Travis only clones the PR branch and uses its HEAD commit as detached HEAD,
# so it's problematic when we want an exact commit range for format checks.
# We fetch upstream to ensure that we have the proper references to resolve.
# Ideally we would use $TRAVIS_COMMIT_RANGE but it doesn't play well with PR
# updates, as it only includes changes since the previous state of the PR.
git remote add upstream https://github.com/godotengine/godot \
--no-tags -f -t $TRAVIS_BRANCH
RANGE="upstream/$TRAVIS_BRANCH HEAD"
else
# Test only the last commit, since $TRAVIS_COMMIT_RANGE wouldn't support
# force pushes.
RANGE=HEAD
fi
FILES=$(git diff-tree --no-commit-id --name-only -r $RANGE | grep -v thirdparty/ | grep -v platform/android/java/lib/src/com/ | grep -E "\.(c|h|cpp|hpp|cc|hh|cxx|m|mm|inc|java|glsl)$")
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