pioneer/scripts/clang-format.sh

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#!/bin/bash
CLANG_FORMAT=$(which clang-format)
# if PATCH_MODE is set to 0, then set it to the empty string so $PATCH_MODE continues to work
if ((PATCH_MODE == 0)); then PATCH_MODE=""; fi
if [[ $PATCH_MODE ]]; then
echo "clang-format = $CLANG_FORMAT"
fi
if [[ $TRAVIS_PULL_REQUEST && $TRAVIS_PULL_REQUEST != "false" ]]; then
# Check the whole commit range against $TRAVIS_BRANCH, the base merge branch
# We could use $TRAVIS_COMMIT_RANGE but it doesn't play well with force pushes
RANGE_BASE=$(git rev-parse $TRAVIS_BRANCH)
elif [[ $FORMAT_BASE ]]; then
# Test all commits between the $FORMAT_BASE commit and HEAD
RANGE_BASE=$(git rev-parse $FORMAT_BASE)
fi
if [[ $RANGE_BASE ]]; then
# if we're comparing against a certain commit, diff the tree
GIT_DIFF_TOOL="git diff-tree"
else
# otherwise, only diff the HEAD against the index
GIT_DIFF_TOOL="git diff-index --cached"
fi
# Allow manually specifiying the files.
FILES="$@"
# Otherwise, get a list of all files changed between our RANGE_BASE and the current HEAD
if [[ -z $FILES ]]; then
FILES=$($GIT_DIFF_TOOL --no-commit-id --name-only --diff-filter=d $RANGE_BASE HEAD | grep -v contrib/ | grep -E "\.(c|h|cpp|hpp|cc|hh|cxx|m|mm|inc)$")
fi
if [[ -z $PATCH_MODE ]]; then
echo -e "Checking files:"
for file in $FILES; do
echo -e "\t$file"
done
fi
prefix="static-check-clang-format"
suffix="$(date +%s)"
patch="/tmp/$prefix-$suffix.patch"
if [[ -z $PATCH_MODE ]]; then
DIFF_COLOR="--color=always"
else
DIFF_COLOR=""
fi
for file in $FILES; do
CLANG_MESSAGE=$("$CLANG_FORMAT" -style=file "$file")
if [ "$?" = "0" ]; then
diff $DIFF_COLOR -u "$file" - <<< "$CLANG_MESSAGE" | \
sed -e "1s|--- |--- a/|" -e "2s|+++ -|+++ b/$file|" >> "$patch"
fi
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
if [[ $PATCH_MODE ]]; then
# Print the generated patch to stdout.
cat "$patch"
rm -f "$patch"
exit 1
else
# a patch has been created, notify the user and exit
printf "\n*** The following differences were found between the code to commit "
printf "and the clang-format rules:\n-----\n"
cat "$patch"
rm -f "$patch"
printf "\n*** Aborting, please fix your commit(s) with 'git commit --amend' or 'git rebase -i <hash>'\n"
exit 1
fi