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.

(cherry picked from commit e479231b21)
This commit is contained in:
Rémi Verschelde 2020-02-19 11:35:20 +01:00
parent 279ada89ab
commit 9b8f66a825

View File

@ -3,11 +3,17 @@
CLANG_FORMAT=clang-format-6.0
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"
# 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
# Test only the last commit, since $TRAVIS_COMMIT_RANGE wouldn't support
# force pushes.
RANGE=HEAD
fi