dolphin/Tools/lint.sh

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#! /bin/bash
#
# Linter script that checks for common style issues in Dolphin's codebase.
set -euo pipefail
# use Windows' git when working under path mounted from host on wsl2
# inspired by https://markentier.tech/posts/2020/10/faster-git-under-wsl2/#solution
GIT=git
if [ "$(uname -s)" == "Linux" ]; then
if [ "$(stat --file-system --format=%T `pwd -P`)" == "v9fs" ]; then
GIT=git.exe
fi
fi
if ! [ -x "$(command -v $GIT)" ]; then
echo >&2 "error: git is not installed"
exit 1
fi
REQUIRED_CLANG_FORMAT_MAJOR=12
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REQUIRED_CLANG_FORMAT_MINOR=0
CLANG_FORMAT=clang-format
CLANG_FORMAT_MAJOR=clang-format-${REQUIRED_CLANG_FORMAT_MAJOR}
CLANG_FORMAT_MAJOR_MINOR=${CLANG_FORMAT_MAJOR}.${REQUIRED_CLANG_FORMAT_MINOR}
if [ -x "$(command -v $CLANG_FORMAT_MAJOR)" ]; then CLANG_FORMAT=$CLANG_FORMAT_MAJOR; fi
if [ -x "$(command -v $CLANG_FORMAT_MAJOR_MINOR)" ]; then CLANG_FORMAT=$CLANG_FORMAT_MAJOR_MINOR; fi
if ! [ -x "$(command -v $CLANG_FORMAT)" ]; then
echo >&2 "error: clang-format is not installed"
echo >&2 "Install clang-format version ${REQUIRED_CLANG_FORMAT_MAJOR}.${REQUIRED_CLANG_FORMAT_MINOR}.*"
exit 1
fi
FORCE=0
if [ $# -gt 0 ]; then
case "$1" in
-f|--force)
FORCE=1
shift
;;
esac
fi
if [ $FORCE -eq 0 ]; then
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CLANG_FORMAT_VERSION=$($CLANG_FORMAT --version)
clang_format_version_ok=false
clang_format_version_re='version ([0-9]+).([0-9]+)'
if [[ $CLANG_FORMAT_VERSION =~ $clang_format_version_re ]]; then
CLANG_FORMAT_MAJOR="${BASH_REMATCH[1]}"
CLANG_FORMAT_MINOR="${BASH_REMATCH[2]}"
if [ $CLANG_FORMAT_MAJOR == $REQUIRED_CLANG_FORMAT_MAJOR ] && [ $CLANG_FORMAT_MINOR == $REQUIRED_CLANG_FORMAT_MINOR ]; then
clang_format_version_ok=true
fi
fi
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if ! [ "$clang_format_version_ok" = true ]; then
echo >&2 "error: clang-format is the wrong version (${CLANG_FORMAT_VERSION})"
echo >&2 "Install clang-format version ${REQUIRED_CLANG_FORMAT_MAJOR}.${REQUIRED_CLANG_FORMAT_MINOR}.* or use --force to ignore"
exit 1
fi
fi
did_java_setup=0
JAVA_CODESTYLE_FILE="./$($GIT rev-parse --show-cdup)/Source/Android/code-style-java.xml"
java_temp_dir=""
function java_setup() {
if [ "$did_java_setup" = 1 ]; then
return
fi
if [ ! -x "${ANDROID_STUDIO_ROOT}/bin/format.sh" ]; then
echo >&2 "error: must set ANDROID_STUDIO_ROOT environment variable to the IDE installation directory (current: ${ANDROID_STUDIO_ROOT})"
exit 1
fi
java_temp_dir="$(mktemp -d)"
trap "{ rm -r ${java_temp_dir}; }" EXIT
did_java_setup=1
}
fail=0
# Default to staged files, unless a commit was passed.
COMMIT=${1:---cached}
# Get modified files (must be on own line for exit-code handling)
modified_files=$($GIT diff --name-only --diff-filter=ACMRTUXB $COMMIT)
function java_check() {
"${ANDROID_STUDIO_ROOT}/bin/format.sh" -s "${JAVA_CODESTYLE_FILE}" -R "${java_temp_dir}" >/dev/null
# ignore 'added'/'deleted' files, we copied only files of interest to the tmpdir
d=$($GIT diff --diff-filter=ad . "${java_temp_dir}" || true)
if ! [ -z "${d}" ]; then
echo "!!! Java code is not compliant to coding style, here is the fix:"
echo "${d}"
fail=1
fi
}
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# Loop through each modified file.
for f in ${modified_files}; do
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# Filter them.
if echo "${f}" | egrep -q "[.]java$"; then
# Copy Java files to a temporary directory
java_setup
mkdir -p $(dirname "${java_temp_dir}/${f}")
cp "${f}" "${java_temp_dir}/${f}"
continue
fi
if ! echo "${f}" | egrep -q "[.](cpp|h|mm)$"; then
continue
fi
if ! echo "${f}" | egrep -q "^Source"; then
continue
fi
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# Check for clang-format issues.
d=$($CLANG_FORMAT ${f} | (diff -u "${f}" - || true))
if ! [ -z "${d}" ]; then
echo "!!! ${f} not compliant to coding style, here is the fix:"
echo "${d}"
fail=1
fi
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# Check for newline at EOF.
last_line="$(tail -c 1 ${f})"
if [ -n "${last_line}" ]; then
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echo "!!! ${f} not compliant to coding style:"
echo "Missing newline at end of file"
fail=1
fi
done
if [ "${did_java_setup}" = 1 ]; then
java_check
fi
exit ${fail}