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rocksdb/build_tools/format-diff.sh

83 lines
2.6 KiB

#!/bin/bash
set -e
# If clang_format_diff.py command is not specfied, we assume we are able to
# access directly without any path.
if [ -z $CLANG_FORMAT_DIFF ]
then
CLANG_FORMAT_DIFF="clang-format-diff.py"
fi
# Check clang-format-diff.py
if ! which $CLANG_FORMAT_DIFF &> /dev/null
then
echo "You didn't have clang-format-diff.py available in your computer!"
echo "You can download it by running: "
echo " curl https://fburl.com/clang-format-diff"
exit 128
fi
# Check argparse, a library that clang-format-diff.py requires.
python 2>/dev/null << EOF
import argparse
EOF
if [ "$?" != 0 ]
then
echo "To run clang-format-diff.py, we'll need the library "argparse" to be"
echo "installed. You can try either of the follow ways to install it:"
echo " 1. Manually download argparse: https://pypi.python.org/pypi/argparse"
echo " 2. easy_install argparse (if you have easy_install)"
echo " 3. pip install argparse (if you have pip)"
exit 129
fi
# TODO(kailiu) following work is not complete since we still need to figure
# out how to add the modified files done pre-commit hook to git's commit index.
#
# Check if this script has already been added to pre-commit hook.
# Will suggest user to add this script to pre-commit hook if their pre-commit
# is empty.
# PRE_COMMIT_SCRIPT_PATH="`git rev-parse --show-toplevel`/.git/hooks/pre-commit"
# if ! ls $PRE_COMMIT_SCRIPT_PATH &> /dev/null
# then
# echo "Would you like to add this script to pre-commit hook, which will do "
# echo -n "the format check for all the affected lines before you check in (y/n):"
# read add_to_hook
# if [ "$add_to_hook" == "y" ]
# then
# ln -s `git rev-parse --show-toplevel`/build_tools/format-diff.sh $PRE_COMMIT_SCRIPT_PATH
# fi
# fi
# Check the format of recently changed lines,
diffs=$(git diff -U0 HEAD^ | $CLANG_FORMAT_DIFF -p 1)
if [ -z "$diffs" ]
then
echo "Nothing needs to be reformatted!"
exit 0
fi
# Highlight the insertion/deletion from the clang-format-diff.py's output
COLOR_END="\033[0m"
COLOR_RED="\033[0;31m"
COLOR_GREEN="\033[0;32m"
echo -e "Detect lines that doesn't follow the format rules:\r"
# Add the color to the diff. lines added will be green; lines removed will be red.
echo "$diffs" |
sed -e "s/\(^-.*$\)/`echo -e \"$COLOR_RED\1$COLOR_END\"`/" |
sed -e "s/\(^+.*$\)/`echo -e \"$COLOR_GREEN\1$COLOR_END\"`/"
echo -e "Would you like to fix the format automatically (y/n): \c"
# Make sure under any mode, we can read user input.
exec < /dev/tty
read to_fix
if [ "$to_fix" != "y" ]
then
exit 1
fi
# Do in-place format adjustment.
git diff -U0 HEAD^ | $CLANG_FORMAT_DIFF -i -p 1