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#!/bin/bash | ||
# | ||
# clang-format-all: a tool to run clang-format on an entire project | ||
# Copyright (C) 2016 Evan Klitzke <[email protected]> | ||
# | ||
# This program is free software: you can redistribute it and/or modify | ||
# it under the terms of the GNU General Public License as published by | ||
# the Free Software Foundation, either version 3 of the License, or | ||
# (at your option) any later version. | ||
# | ||
# This program is distributed in the hope that it will be useful, | ||
# but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
# GNU General Public License for more details. | ||
# | ||
# You should have received a copy of the GNU General Public License | ||
# along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
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function usage { | ||
echo "Usage: $0 DIR..." | ||
exit 1 | ||
} | ||
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if [ $# -eq 0 ]; then | ||
usage | ||
fi | ||
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# Variable that will hold the name of the clang-format command | ||
FMT="" | ||
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# Some distros just call it clang-format. Others (e.g. Ubuntu) are insistent | ||
# that the version number be part of the command. We prefer clang-format if | ||
# that's present, otherwise we work backwards from highest version to lowest | ||
# version. | ||
for clangfmt in clang-format{,-{4,3}.{9,8,7,6,5,4,3,2,1,0}}; do | ||
if which "$clangfmt" &>/dev/null; then | ||
FMT="$clangfmt" | ||
break | ||
fi | ||
done | ||
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# Check if we found a working clang-format | ||
if [ -z "$FMT" ]; then | ||
echo "failed to find clang-format" | ||
exit 1 | ||
fi | ||
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# Check all of the arguments first to make sure they're all directories | ||
for dir in "$@"; do | ||
if [ ! -d "${dir}" ]; then | ||
echo "${dir} is not a directory" | ||
usage | ||
fi | ||
done | ||
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# Find a dominating file, starting from a given directory and going up. | ||
find-dominating-file() { | ||
if [ -r "$1"/"$2" ]; then | ||
return 0 | ||
fi | ||
if [ "$1" = "/" ]; then | ||
return 1 | ||
fi | ||
find-dominating-file "$(realpath "$1"/..)" "$2" | ||
return $? | ||
} | ||
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# Run clang-format -i on all of the things | ||
for dir in "$@"; do | ||
pushd "${dir}" &>/dev/null | ||
if ! find-dominating-file . .clang-format; then | ||
echo "Failed to find dominating .clang-format starting at $PWD" | ||
continue | ||
fi | ||
find . \ | ||
\( -name '*.c' \ | ||
-o -name '*.cc' \ | ||
-o -name '*.cpp' \ | ||
-o -name '*.h' \ | ||
-o -name '*.hh' \ | ||
-o -name '*.hpp' \) \ | ||
-exec "${FMT}" -i '{}' \; | ||
popd &>/dev/null | ||
done |